发动机专业英语

发动机分类1 往复式内燃机reciprocating internal combustion engine2 化油器式发动机carburetor engine3 转子发动机rotary engine4 旋轮线转子发动机rotary trochoidal engine5 二冲程发动机two-stroke engine6 四冲程发动机four-stroke engine7 增压式发动机supercharged engine8 风冷式发动机air-cooled engine9 油冷式发动机oil-cooled engine10 水冷式发动机water-cooled engine11 自然进气式发动机naturally aspirated engine12 煤气机gas engine13 液化石油气发动机liquified petroleum gas engine14 柴油煤气机diesel gas engine15 多种燃料发动机multifuel engine16 石油发动机hydrocarbon engine17 双燃料发动机duel fuel engine18 热球式发动机hot bulb engine19 多气缸发动机multiple cylinder engine20 对置活塞发动机opposed piston engine21 对置气缸式发动机opposed-cylinder engine22 十字头型发动机cross head engine23 直列式发动机in-line engine24 星型发动机radial engine25 筒状活塞发动机trunk-piston engine26 斯特林发动机stirling engine27 套阀式发动机knight engine28 气孔扫气式发动机port-scavenged engine29 倾斜式发动机slant engine30 前置式发动机front-engine31 后置式发动机rear-engine32 中置式发动机central engine33 左侧发动机left-hand engine34 右侧发动机right-hand engine35 短冲程发动机oversquare engine36 长冲程发动机undersquare engine37 等径程发动机square engine38 顶置凸轮轴发动机overhead camshaft engine39 双顶置凸轮轴发动机dual overhead camshaft engine40 V形发动机V-engine41 顶置气门发动机valve in-head engine42 侧置气门发动机side valve engine43 无气门发动机valveless engine44 多气门发动机multi-valve engine45 卧式发动机horizontal engine46 斜置式发动机inclined engine47 立式发动机vertical engine48 W形发动机w-engine49 I形发动机I-engine50 L形发动机L-engine51 F形发动机F-engine52 原机Engine prototype发动机性能53 二冲程循环two-stroke cycle54 四冲程循环four-stroke cycle55 狄塞尔循环diesel cycle56 奥托循环otto cycle57 混合循环mixed cycle58 定容循环constant volume cycle59 工作循环working cycle60 等压循环constant pressure cycle61 理想循环ideal cycle62 热力循环thermodynamic cycle63 冲程stroke64 活塞行程piston stroke65 长行程long stroke66 上行程up stroke67 下行程down stroke68 进气行程intake stroke69 充气行程charging stroke70 压缩行程compression stroke71 爆炸行程explosion stroke72 膨胀行程expansion stroke73 动力行程power stroke74 排气行程exhaust stroke75 膨胀换气行程expansion-exchange stroke76 换气压缩行程exchange-compression stroke77 上止点top dead center(upper dead center)78 下止点lower dead center(bottom dead center)79 上止点前budc(before upper dead center)80 上止点后atdc(after top dead cetner)81 下止点前bbdc(before bottom dead center)82 下止点后abdc(after bottom dead center)83 排气量displacement84 发动机排量engine displacement85 活塞排量piston swept volume86 气缸容量cylinder capacity87 单室容量single-chamber capacity88 容积法volumetry89 压缩比compression ratio90 临界压缩比critical compression ratio91 膨胀比expansion ratio92 面容比surface to volume ratio93 行程缸径比stroke-bore ratio94 混合比mixture ratio95 压缩压力compression pressure96 制动平均有效压力brake mean effective pressure(bmep)97 空燃比air fuel ratio98 燃空比fuel air ratio99 燃料当量比fuel equivalence ratio100 扭矩torque101 单缸功power per cylinder102 升功率power per liter103 升扭矩torque per liter104 升质量mass per liter105 减额功率derating power106 输出马力shaft horsepower107 马力小时，马力时horsepower-hour108 总马力gross horse power109 总功率gross power110 净功率net power111 燃油消耗量fuel consumption112 比燃料消耗率specific fuel consumption113 空气消耗率air consumption114 机油消耗量oil consumption115 有效马力net horse power116 额定马力rated horse power117 马力重量系数horsepower-weight factor118 制动功率brake horse power119 制动热效率brake thermal efficiency120 总效率overall efficiency121 排烟极限功率smoke limiting horsepower122 功率曲线power curve123 机械损失mechanical loss124 机械效率mechanical efficiency125 有效热效率effective thermal efficiency126 充气系数volumetric efficiency127 过量空气系数coefficient of excess air128 适应性系数adaptive coefficient129 扭矩适应性系数coefficient of torque adaptibility130 转速适应性系数speed adaptive coefficient 131 强化系数coefficient of intensification132 校正系数correction factor133 换算系数conversion factor134 活塞平均速度mean piston speed135 发动机转速engine speed (rotational frequency) 136 充量（进气）charge137 旋转方向direction of rotation138 顺时针clockwise139 逆时针counter-clockwise140 左转left-hand rotation141 右转right-hand rotation142 发动机性能engine performance143 加载性能loading performance144 起动性能starting performance145 加速性能acceleration performance146 动力性能power performance147 排放性能emission performance148 燃油经济性Fuel economy149 排放Exhaust emissions150 大的燃烧噪声Large combustion noise151 预混合燃烧Premixed combustion152 扩散燃烧Diffusion combustion153 大的EGR率Heavy EGR154 推迟喷油时间Retarding the injection timing, 155 推迟喷油时间Delaying the fuel injection timing, 156 燃烧激振力Combustion excitation forces (CPL) 157 CO2排放Carbon dioxide (CO2) emissions158 温室气体Greenhouse gas159 热效率Thermal efficiency160 辅助涡流室Auxiliary swirl chamber161 黑烟Black smoke162 Nox氮氧化物Nitrogen oxides163 PM颗粒物Particulate matter164 EGR废气再循环Exhaust gas recirculation165 燃油供给系统The fuel injection system166 在低负荷区In the low load region167 气缸压力The cylinder pressure level168 曲轴转角The crank angle169 1/3倍频程1/3 octave band of the frequency 170 全负荷Full load171 部分负荷Partial load172 声压级Sound pressure level173 发动机扭矩Engine torque174 燃烧噪声Combustion noise175 机械噪声Mechanical noise176 涡轮增压的Turbocharged177 涡轮增压器Turbocharger178 着火燃迟期The ignition delay period179 喷油泵The fuel injection pump180 增压中冷柴油机Intercooled turbocharged diesel181 碳化氢Hydrocarbon (HC)182 进气管几何尺寸Intake port geometry183 水平轴Horizontal axis184 声功率Sound power level185 竖直轴Vertical axis186 辐射噪声Radiation noise187 发动机测功机engine dynamometer188 零负荷到中等负荷Idling to a medium-load189 振幅Amplitude190 气缸体振动Cylinder block vibration191 声压级Sound pressure level192 随着曲轴转角In relation to the crank angle193 最大汽缸压力The maximum cylinder pressure194 最大汽缸压力升高率The cylinder pressure gradient195 共轨系统Common-rail system196 可变喷嘴涡轮增压器variable nozzle turbocharger197 引导喷射pilot injection198 4气门DOHC系统4-valve DOHC system199 计算机辅助工程CAE computer-aided engineering200 固有噪声Born noise201 侧面挠度lateral bending202 排气岐管exhaust manifold203 进气岐管intake manifold204 交流发电机alternator205 齿轮箱gear case206 供油泵supply pump207 起动机starter208 共振频率resonance frequency209 气缸压力快速升高率the rapid rising rate of cylinder pressure 210 主喷量和主喷时间main injection volume, timing211 共轨油压fuel pressure in a common-rail212 放热率heat release ratio213 步进电机step-motor214 频谱图frequency spectrum map215 油膜oil film216 机械噪声mechanical noise217 识别identify218 变量variable219 隔离声音的传播途径Isolate sound transmission routes 220 衰减Attenuation221 半消声室Semi-ane choic chamber222 系数Coefficient223 正时带Timing belt224 台架实验Bench test225 气门驱动凸轮Valve-drive cam226 传递系数Transfer coefficient227 矢量vector228 气穴现象Cavitation229 微处理器microprocessor230 执行器actuator231 电控泵electronically controlled pump构造232 气缸盖cylinder head233 气缸体cylinder block234 整体铸造cast inblock (cast enblock)235 发动机罩engine bonnet236 气缸体加强筋engine block stiffening rib237 气缸cylinder238 示功图indicator chart/diagram239 缸体（转子机）stator240 缸径cylinder bore241 气缸体机架cylinder block frame242 配气机构箱valve mechanism casing243 气缸体隔片cylinder spacer244 气缸盖密封环cylinder head ring gasket245 气缸盖垫片cylinder head gasket246 气缸套cylinder liner(cylinder sleeve)247 干式缸套dry cylinder liner248 湿式缸套wet cylinder liner249 气缸水套water jacket250 膨胀塞expansion plug251 防冻塞freeze plug252 气缸壁cylinder wall253 环脊ring ridge254 排气口exhaust port255 中间隔板intermediate bottum256 导板guideway257 创成半径（转子机）generating radius258 缸体宽度（转子机）operating width259 燃烧室combustion bowl260 浅盆形缩口燃烧室shallow reentrant combustion chamber 261 主燃烧室main combustion chamber262 副燃烧室subsidiary combustion chamber263 预燃室prechamber264 涡流燃烧室` swirl combustion chamber265 分开式燃烧室divided combustion chamber266 涡流式燃烧室turbulence combustion chamber267 半球形燃烧室hemispherical combustion chamber268 浴盆形燃烧室bathtub section combustion chamber269 L 形燃烧室L-combustion chamber270 楔形燃烧室wedge-section combustion chamber271 开式燃烧室open combustion chamber272 封闭喷射室closed spray chamber273 活塞顶内燃烧室piston chamber274 爆发室explosion chamber275 燃烧室容积比volume ratio of combustion cahmber276 发动机托架engine holding frame engine277 动力机装置power unit278 直喷柴油机DI（direct-injection）diesel engine279 非直喷柴油机IDI（Indirect-injection）diesel engine 280 动力传动系power train281 连杆connecting rod282 油底壳oil pan283 活塞销piston pin284 气缸套cylinder bore285 凸轮齿cam gear286 空气室energy chamber287 气缸余隙容积cylinder clearance volume288 燃烧室容积combustion chamber volume289 气缸最大容积maximum cylinder volume290 压缩室compression chamber291 外径major diameter292 中径pitch diameter293 内径minor diameter294 径向间隙radial clearance295 两极调速器limiting_speed governor296 特性297 空转特性no load characteristics298 负荷特性part throttle characteristics（汽油机）load characteristics299 调速特性governor control characteristics300 万有特性mapping characteristics301 稳定调速率steady state speed governing rate工况302 怠速转速idling speed303 经济转速economic speed304 起动转速starting speed305 最低稳定工作转速lowest continuous speed with load306 最大扭矩转速speed at maximum torque307 最高空转转速maximum no load governed speed308 调速speed governing309 超速overspeed310 怠速idling311 转速波动率speed fluctuation rate312 工况working condition(operating mode)313 额定工况declared working condition314 变工况variable working condition315 稳定工况steady working condition316 空载no-load317 全负荷full load318 超负荷overload319 部分负荷part load320 怠速控制idling-speed control321 怠速工况idling condition322 起动工况starting condition323 起动转速cranking speed324 急减速工况abrupt decreasing condition325 加速工况accelerating condition326 驻车park327 调速Speed governing328 应急[跛行]模式limp-in mode排放329 Emission Standards in the EU 欧洲排放标准330 Fuel Quality 燃油质量331 Conformity of Production (COP) 生产一致性检测332 Fuel Consumption 燃油消耗333 Exhaust Emission Measurement 排放检测334 tailpipe 排气管335 Carbon monoxide 一氧化碳336 emissions of crankcase gases 曲轴箱燃油蒸发排放量337 Ageing test 耐久性试验338 EPEFE = European Program on Emssions, Fuels and Engine Technologies 欧洲的排放、燃油及发339 动机技术项目340 fuel properties 燃油质量341 Car Manufacturers 汽车制造商342 Impact of vehicle emissions on air quality 排放对空气质量的影响343 Cetane no. 十六烷值344 Evaporation characteristic 蒸发特性345 Sulfur-free Fuels 无硫燃油346 Testcycle 测试循环347 NEDC = New European Driving Cycle 新的欧洲标准测试循环348 Loading of charcoal canister 炭罐吸附349 preconditioning (PC) 预处理350 ESC=European steady state cycle 稳态循环351 ELR=European load response test 负荷烟度试验352 ETC=European transient cycle瞬态循环353 EEV=Enhanced Environmentally Friendly Vehicle 环境友好汽车354 ambient temperature 环境温度355 λ-sensor λ传感器356 exceeding emission limits) 排放超出限值357 Roadworthiness-Tests 道路适应性检测358at free acceleration 在自由加速工况下359 catalyst 催化转化器360 natural aspirated 自然吸气机型361 turbo charged 涡轮增压机型362 Emission Control Technologies 排放控制技术363 Three-way catalyst 三元催化转化器364 catalyst coating 催化转化器涂层365 secondary air injection 二次空气喷366 exhaust gas recirculation 排气再循环系统367 oxidation catalyst 氧化催化转化器368 piezo injection valves 压电式喷油阀369 PowerStations 发电机组370 Anthropogenic 人为因素371 ACEA = European Car Manufacturer Association 欧洲汽车制造商协会372 Target corridor 标范围373 Target value目标值374 CFV 临界流量文丘里管（Critical flow venturi）375 CLD 化学发光检测器（Chemiluminescent detector）376 FID 氢火焰离子化检测器（Flame ionisation detector）377 GC 气相色谱仪（Gas chromatograph）378 HCLD 加热式化学发光检测器（Heated chemiluminescent detector）379 HFID 加热式氢火焰离子化检测器（Heated flame ionisation detector）380 LPG 液化石油气（Liquefied petroleum gas）381 NDIR 不分光红外线分析仪（Non-dispersive infrared analyzer）382 NG 天然气（Natural gas）383 NMC 非甲烷截止器（Non-methane cutter）384 Rated power 额定功率。

发动机专业英语一、Engine construction发动机构造1. rocker arm cover 摇臂罩2. valve rocker arm 气门摇臂3. camshaft 凸轮轴4. camshaft drive 凸轮轴驱动轮5.spark plug lead 火花塞导线6. timing belt cover 正时皮带罩7. valve spring 气门弹簧8. poppet valve 菌形气门9. piston 活塞10. connecting rod 连杆11. timing belt 正时皮带12. combustion chamber 燃烧室13. cylinder block 汽缸体14. water jacket 水套15. oil filter 机油滤清器16. flywheel 飞轮17. ring gear 齿圈18.oil gage 机油标尺19. oil pan/sump 油底壳20. crankshaft 曲轴21. drain plug 放油孔塞22. v-belt pulley V型皮带轮二、Essential term基本术语1. cylinder diameter 汽缸直径2. piston stroke 活塞行程3. crank radius 曲轴半径4. piston displacement 活塞排量5. compression chamber volume 压缩室容积6. total cylinder volume 总汽缸容积7. top dead center 上止点8. bottom dead center 下止点三、Engine operation principle 发动机工作原理3.1. Four-stroke gasoline engine operation principle四冲程汽油机工作原理1. intake stroke 进气行程2. compression stroke 压缩行程3. expansion stroke 膨胀行程4. exhaust stroke 排气行程5. combustible mixture 可燃混合气6. intake valve 进气门7. spark plug 火花塞8. exhaust valve 排气门9. exhaust gas 废气3.2 Four-stroke diesel engine operational principle四冲程柴油机工作原理1. intake stroke 进气行程2. compression stroke 压缩行程3. expansion stroke 膨胀行程4. exhaust stroke 排气行程5. intake 进气6. compression 压缩7. combustion 燃烧8. expansion 膨胀9. exhaust 排气10. air 空气11. injector 喷油器12. exhaust gas 废气3.3 Two-stroke gasoline engine op eration principle二冲程汽油机工作原理1. combustible mixture 可燃混合气2. inlet port 进气口3. crankcase 曲轴箱4. precompressed mixture 预压混合气5. transfer canal 输气道6. intake port 进气口7. exhaust port 排气口8. exhaust gas 废气9. spark plug 火花塞3.4 Two-stroke diesel engine oper ation principle二冲程柴油机工作原理1. air 空气2. blower pump 扫气泵3. precompressed air 预压空气4. air chamber 空气室5. inlet port 进气口6. injector 喷油器7. exhaust valve 排气门8. exhaust gas 废气四、Engine performance发动机性能1. fixed throttle characteristics 速度特性2. part throttle characteristics 负荷特性3. engine speed 转速4. torque 扭矩5. horsepower 功率6. specific（特效药、详细的精确的） fuel consumption 燃油消耗率五．Crank connecting rodmechanism曲柄连杆机构5.1 Cylinder block 机体组1. cylinder block 汽缸体2. cylinder liner 汽缸套3. cylinder bearing surface 汽缸套表面4. cylinder head 汽缸盖发动机5. inlet manifold mountingflange 进气歧管凸缘6. oil inlet hole 加油孔7. cylinder head cover 汽缸盖罩8. cylinder head gasket 汽缸盖衬垫9. oil filter mounting flange 机油滤清器凸缘10. ventilating pipe mounting seat 通风管座11. cylinder block stiffeningrib 汽缸体加强肋12. rear main bearing cover 后主轴承罩13. main bearing cap 主轴承盖14. oil sump pan gasket 油底壳衬垫15. oil sump/pan 油底壳16. fuel pump mountingflange 燃油泵凸缘17. ignition distributor mounting f lange 分电器凸缘18. camshaft bearing bushseat 凸轮轴轴承座19. camshaft drive(gear)cover 凸轮轴驱动齿轮罩20. cylinder head covergasket 汽缸盖罩衬垫5.2 Piston,connecting rod 活塞连杆组1. connecting rod shank 连杆杆身2. connecting rod small end 连杆小头3. connecting rod bushing 连杆衬套4. spring clip 弹簧卡环5. piston pin 活塞销6. piston head 活塞头部7. piston ring groove 活塞环槽8. compression ring 压缩环9. oil scraper ring 油环10. piston skirt 活塞裙部11. piston pin boss 活塞销座12. connecting rod bearing halfsh ell 连杆轴瓦13. connecting rod cap 连杆螺栓14. connecting rod cap 连杆大头盖15. Connecting rod end 连杆大头5.3 Crankshaft,flywheel 曲轴飞轮组1. crankshaft front end 曲轴前端2. front main journal 前主轴颈3. oil passage hole 机油孔4. crank pin 曲柄销5. crank web 曲柄臂6 counterweight 平衡重7 crankshaft collar 曲轴后端凸缘8 flywheel 飞轮9 flywheel gear ring 飞轮齿圈10 flywheel lock plate 飞轮锁片11 clutch shaft bearing 离合器轴轴承12 main bearing halfshell(upper,lo wer) 主轴承（上、下）轴瓦13 crankshaft thrust halfring 曲轴止推片14 bearing tang 轴瓦定位凸键六、Valve mechanism配气机构6.1 Side valve 侧置气门1 camshaft 凸轮轴2 cam 凸轮3 tappet 气门挺杆4 side valve 侧置气门5 crankshaft timing gear 曲轴正时齿轮6 camshaft gear-wheel 凸轮轴齿轮7 gear drive 齿轮传动6.2 Overhead valve 顶置气门1 camshaft 凸轮轴2 camfollower 凸轮顶杆3 push rod 推杆4 adjuster 调整螺钉5 rocker shaft 摇臂轴6 rocker shaft 摇臂7 valve spring 气门弹簧8 valve 气门9 valve 气道10 combustion chamber 燃烧室6.3 Overhead valve 顶置气门1 camshaft front bearing 凸轮轴前轴承2 valve head 气门头3 valve stem 气门杆4 tappet 挺筒5 lower valve spring collar 气门弹簧下环6 outer valve spring 外气门弹簧7 valve guide 气门导管8 inner valve spring 内气门弹簧9 shielding cap 护帽10 oil flinger 油封11 upper valve spring collar 气门弹簧上环12 valve split cone 气门锁片13 closer 螺塞14 rocker shaft 摇臂轴15 rocker arm 摇臂16 rocker bracket 摇臂支座17 retaining washer 定位摇臂18 thrust washer 止推摇臂19 rocker adjusting screw 摇臂调整螺钉20 push rod 推杆21 camshaft rear bush 凸轮轴后轴承22 camshaft 凸轮轴23 camshaft center bush 凸轮轴中间轴承承承承24 cam 凸轮25 oil pump driving gear 机油泵驱动齿轮6.4 Valve-timing diagram 配气相位图1 TDC（top dead center）上止点2 BDC(bottom dead center) 下止点3 intake opens 进气门开4 intake close 进气门关5 exhaust opens 排气门开6 exhaust closes 排气门关7 direction of rotation 旋转方向七、Gasoline engine-fuel s ystem汽油机供油泵7.1 Fuel system 供油泵1 fuel level gauge 油面指示表2 air cleaner 空气滤清器3 carburetor 化油器4 inlet manifold 进气歧管5 exhaust manifold 排气歧管6 fuel pump 汽油泵7 fuel filter 汽油滤清器8 exhaust silencer 排气消声器9 fuel pipe 油管10 fuel tank 汽油箱7.2 Air cleaner 空气滤清器1 intake tube 进气管2 deflector knob 导流旋扭3 air deflector 空气导流器4 cleaner body 滤清器壳5 butterfly nut 蝶形螺帽6 filter cover 滤清器盖7 filter seal ring 滤清器密封环8 cleaner cartridge 滤清器滤芯9 silencer element 消声元件10 crankcase bleed pipe 曲轴箱通风管11 hot air pipe 热空气管7. 3 Fuel pump,fuel filter 汽油泵，汽油滤清器1 fuel pump base 汽油泵座2 diaphragm 膜片3 fuel inlet neck 汽油进口4 fuel pump body 汽油泵壳5 filter screen 滤清器网6 bowl cover 泵盖7 fuel feed port 汽油出口8 distance washer 调整间隔垫圈9 diaphragm spring 膜片弹簧10 rocker arm 摇臂11 fulcrum pin 杠杆支点销12 fuel filter 汽油滤清器13 filter body 滤清器壳14 filter cartridge 滤清器滤芯15 glass bowl 玻璃滤杯16 bowl retaining clip 滤杯支承夹7.4 Simple carburetor 简单化油器1 air cleaner 空气滤清器2 valve needle 针阀3 float 浮子4 nozzle 喷管5 chock tube 喉管6 throttle valve 节气门7 intake manifold 进气歧管8 metering jet 量孔9 float chamber 浮子室10 intake valve 进气门7.5 Carburetor 化油器1 down-draft carburetor 下喷式化油器2 nozzle 喷管3 float chamber 浮子室4 choke tube 喉管5 throttle valve 节气门6 intake manifold 进气歧管7 two-barrel carburetor 双管化油器8 choke tube 喉管9 plug 旋塞10 filter gauze 滤清器金属丝网11 fFuel inlet port 进气门口12 valve seat 阀座13 valve needle 针阀14 float needle valve 浮子针阀15 float pivot pin 浮子销16 float 浮子17 float chamber 浮子室18 accelerator pump 加速泵7.6 Carburetor elements化油器零件1 throttle lever 节气门杆2 pull lever 拉杆3 release lever 放松杆4 throttle valve spindle 节气门轴5 throttle valve 节气门6 main metering jet 主量孔7 idle metering jet 怠速量孔8 accelerator pump discharge noz zle 加速泵输出喷管9 ball valve 球阀10 emulsion pipe 泡沫管11 air jet 空气喷孔12 starting device jet 起动喷孔13 accelerator pump piston 加速泵活塞14 operating cam 操纵凸轮15 accerlerator pump lever 加速泵杆16 adjustable stop 可调限位螺钉7.7 Carburetor control 化油器操纵件1 throttle control lever 节气门操纵杆2 connecting lever rod 连接拉杆3 cable wire 拉索4 connecting adaptor 连接杆5 cable hose 拉索软管6 cable grommet 拉索橡胶圈7 throttle control cablehandle 节气门操纵拉钮8 choke control cablehandle 阻风门操纵拉钮9 pedal lever bracket 踏板拉杆支架10 accelerator pedal 加速踏板11 accelerator pedal hinge 加速踏板铰链12 accelerator pedal mounting bracket 加速踏板安装支架13 flexible boot cap 挠性防尘护套14 roller 滚子15 accelerator pedal lever 加速踏板杠杆16 accelerator pedal return spring加速踏板回位弹簧7.8 Gasoline injection 汽油喷射1 fuel tank 汽油箱2 electric fuel pump 电动汽油泵3 fuel filter 燃油滤清器4 distributor pipe 分油管5 pressure regulator 压力调节器6 electronic control unit 电控单元7 injector 喷油器8 start valve 起动阀9 idle-speed adjusting screw 怠速调节螺钉10 throttle-valve switch 节气门开关11 throttle valve 节气门12 airflow sensor 空气流量计13 relay 继电器组14 oxygen sensor 氧传感器15 coolant-temperature sensor 冷却液温度传感器16 thermo time switch 温度时间开端17 distributor 分电器18 auxiliary-air device 补充空气阀19 idle-mixture adfustingscrew 怠速混合气调节螺钉20 battery 蓄电池21 ignition starter switch 点火起动开关7.9 Electric fuel pump,Injector 电动汽油泵,喷油器1 inlet 汽油2 relief valve 卸压阀3 roller-cell pump 液子泵4 permanent magnet 永久磁铁5 armature 电枢6 non-return valve 单向阀7 outlet 出油8 fuel inlet 燃油进口9 filter inlet 滤清器10 electrical connection 电插头11 solenoid winding 电磁开关线阀12 return spring 回位弹簧13 solenoid plunger 电磁铁芯14 needle 针阀7.10 Sensor 传感器1 coolant-temperature senor 冷却液温度传感器2 terminal 电接头3 hosing 壳体4 thermistor 热敏电阻5 oxygen sensor 氧传感器6 electrical connector 电连接器7 cover 保护管8 body 传感器体9 shield over element 保护元件八、Diesel engine-fuel system柴油机供油系8.1 Fuel system 供油泵1 fuel tank 柴油箱2 overflow valve 溢油箱4 feed pipe 低压油管5 fuel feed pump 手动输油泵6 fuel feed pump 输油泵7 injection pump 喷油泵8 return pipe 回油管9 pressure pipe 高压油管10 combustion chamber 燃烧室11 injector 喷油器12 exhaust pipe 排气管13 exhaust valve 排气门14 return pipe 排油管15 air cleaner 空气滤清器16 intake pipe 进气管8.2 Combustion chamber 燃烧室1 ω type chamber ω型燃烧室2 ball type chamber 球型燃烧室3 Swirl chamber 涡流室燃烧室4 precombustion chamber 预燃室燃烧室8.3 Injection pump 喷油泵1 camshaft 凸轮轴2 roller tappet 滚轮挺柱3 plunger spring 柱塞弹簧4 plunger 柱塞5 control sleeve 控制套筒6 control rod lack 控制齿条7 inlet port 进油口8 pump cylinder 泵缸9 feeding gallery 进油通道10 delivery valve 出油阀11 pressure pipe adaptor 高压油管接头8.4 Injection 喷油器1 nozzle holder 喷油器体2 fuel inlet passage 进油通道3 leak-off adaptor 漏油接头4 inlet adaptor 进油接头5 leak-off passage 漏油通道6 adjusting shim 调整垫片7 nozzle valve spring 针阀弹簧9 needle valve 针阀10 clearance filter 间隙滤芯11 spring adjusting screw 弹簧调整螺钉8.5 Speed governor 调速器1 accelerator pedal linkage 加速踏板杆件2 operating lever 操纵杆3 control rod link 控制杆连接件4 flyweight 飞块5 floating lever 浮动杠杆6 eccentric shaft 偏心轴九、Exhaust system 排气系统1 bracket 支架2 bracket plate 支板3 exhaust manifold joint 排气歧管接头4 double manifold 双排歧管5 double manifold collar 双排歧管凸缘6 exhaust clip 排气管夹头7 pipe U-bolt 排气管U型螺栓8 flexible support 挠性支座9 front silence 前消声器10 flexible mounting plate 挠性安装板11 distance sleeve 间隔套管12 silencer flexible mounting 消声器挠性安装件13 protecting plate 防护板14 rear silencer 后消声器15 intermediate pipe 中间排气管16 front exhaust pipe 前段排气管17 copper-asbestos gasket 紫铜-石棉垫网十、Turbo-supercharging 蜗轮增压10.1 Turbocharging system 蜗轮增压系统1 inlet port 进气口2 compressor 压气机3 inlet valve 进气门4 exhaust valve 排气门5 turbine 蜗轮6 exhaust port 排气口7 engine 发动机10.2 Turbocharger 蜗轮增压器1 air inlet port 空气进口2 compressor 压气机3 oil supply 润滑油入口4 oil return 润滑油出口5 exhaust gas 废气（柴油机）6 turbine 蜗轮7 exhaust gas 废气（蜗轮）十一、Emission control 排污控制11.1 Emission control system 排污控制系统1 air pump 空气泵2 exhaust pipe 排气管3 air passage 空气通道4 NOx catalytic convertor NOx催化反应器5 HC/CO catalyticconvertor HC/ CO催化反应器6 silencer 消声器7 bypass valve 旁通阀8 engine 发动机11.2 Catalytic convertor 催化转化器1 catalyst 催化剂颗粒2 internal pipe 内筒3 housing 外筒4 shell 壳体5 heat insulating material 绝热材料6 high temperature sensor 高温传感器7 silencer 消声器8 exhaust pipe 排气管十二、Engine-cooling system发动机冷却系12.1 Water cooling system 水冷系1 radiator 散热器2 radiator bottom tank 散热器下贮水室3 radiator core 散热器芯4 radiator top tank 散热器上贮水室5 fan 风扇6 water jacket 水套7 overflow pipe 溢流管8 drain plug 放水阀9 thermostat 节温器10 thermostat main valve 节温器主阀11 thermostat flexible bellows 节温器挠性波纹管12 thermostat bypass valve 节温器旁通管12.2 Radiator 传感器1 bottom radiator pipe 散热器出水软管2 radiator cowl 散热器罩3 top radiator cowl 散热器进水软管4 blind cable 百页窗拉索5 radiator filter 散热器加水口6 radiator shutter 散热器百页窗7 radiator filter cap 散热器加水口盖8 vacuum relief valve 真空安全阀9 pressure relief valve 减压阀10 filter sealing plate 加水口密封板11 radiator roller blind 散热器滚筒式百页帘12 overflow pipe 溢流管12.3 Fan,water pump 风扇，水泵1 fan blade 风扇叶片2 fan hub 风扇毂3 fan belt 风扇皮带4 fan pulley 风扇皮带轮5 shaft bearing 水泵轴承6 pump body 泵体7 water main inlet port 进水口8 water bypass inlet neck 旁通进水口9 self-adjusting seal unit 自动调节密封件10 pump impeller 水泵叶轮11 pump cover 泵盖12 cover gasket 泵盖衬垫13 water outlet port 出水口14 fan and pump shaft 风扇与水泵轴12.4 Air cooling system 风冷系1 blower 风扇2 blower-casing 风扇外壳3 reactor 定子叶轮4 reactor blade 定子叶片5 cooling air 冷却空气6 air cooled cylinder head 风冷汽缸盖7 deflector 导向叶片8 cylinder head fin 气缸盖肋片9 cylinder block fin 气缸体肋片10 heating air outlet 热空气出口12 exhaust manifold 排气歧管13 blower pulley 风扇皮带轮14 blower impeller 风扇叶轮15 v-belt V型皮带16 impeller blade 叶轮叶片十三、发动机润滑系Engine-lubrication system13.1 Pressure lubrication 压力润滑1 oil passage 油道2 oil filter tube 加油管3 oil filter cap 加油管盖4 bypass oil cleaner 分流式机油滤清器5 oil pressure sensor 油压传感器6 dipstick 油标尺7 oil drain hole 放油孔8 oil strainer 机油集滤器9 oil pressure relief valve 机油限压阀10 oil pump outlet pipe 机油泵出油管11 centrifugal oil cleaner 离心式机油滤清器12 gear chain lubrication jet 齿轮链条润滑喷孔13 gear chain lubrication passage 齿轮链条润滑油道14 main pressure oil passage 主油道13.2 Oil pump 机油泵1 oil pressure relief valve spring 限压阀弹簧2 oil pressure reliefvalve ball 限压阀钢球3 oil pump cover plate 机油泵盖板4 oil pump gear 机油泵齿轮5 oil pump body 机油泵壳体6 driving shaft pilot sleeve 驱动轴导套7 oil pump driving shaft 机油泵驱动轴8 oil pump driving gear 机油泵驱动齿轮9 oil inlet pipe 进油管10 lock washer 止锁垫圈11 oil suction pipe joint 进油管接头12 oil strainer cover 机油集滤器盖13 screen strainer 滤网14 oil strainer bottom 机油集滤器底版13.3 Oil cleaner 机油滤清器1 handle 手柄3 filter shaft 滤清器轴4 filter cover 滤清器盖5 thrust plate 压板6 filtering disc 滤片7 distance disc 隔片8 filtering element bolt 滤清元件螺栓9 thrust washer 止推垫圈10 filter body 滤清器壳体11 drain plug 放油塞12 cleaning edges 滤清肋片13 cleaning edges spindle 滤清肋片芯轴14 filter cover base 滤清器支座15 pressure relief valve 限压阀16 filter cover bolt 滤清器盖螺栓17 cartridge 滤芯13.4 Oil cooling radiator 机油散热器1 radiator core 散热器芯子2 stiff pipe 硬管3 stiff pipe shackle 硬管夹架4 oil inlet hose 进油软管5 T-pipe T型管6 shut-off cock 旋塞开关7 connecting pipe 接头8 oil outlet host 出油软管十四、发动机点火系Engine-ignition system14.1 Ignition system 点火系1 battery 蓄电池2 ignition switch 点火开关3 coil 点火线圈4 engine camshaft 发动机凸轮轴5 distributor drive rotates 分电器驱动轴6 contact breaker 继电器触点7 capacitor 电容器8 rotor 转子9 distributor cap 分电器盖10 high tension lead 高压导线11 sparking plug 火花塞12 vehicle frame 车架14.2 Lead battery 铅蓄电池2 cell cover 电池盖3 battery negative terminal 蓄电池负极接头4 cell filler plug 电池加液盖5 battery positiveterminal 蓄电池正极接头6 cell connector 电池连接件7 negative plate 负极板8 separator 隔板9 positive plate 正极板10 sediment space 沉淀区11 cell separator 电池隔板14.3 Ignition coil 点火线圈1 winding insulatinglayer 绕组绝缘涂层2 core insulating tube 铁芯绝缘管3 primary winding 初级线圈4 winding insulation 绕组绝缘层5 clamping ring 夹圈6 magnetic core 磁芯7 primary terminal 初级线圈接线柱8 high-tension leadterminal 高压导线接线柱9 ignition coil head 点火线圈盖10 insulating material 绝缘材料11 supplementary resistor 附加电阻12 magnetic shield 磁屏蔽13 high-tension winding 高压线圈14 core insulator 铁芯绝缘座15 coil case 线圈外壳14.4 Distributor 分电器1 ignition coil cable terminal 点火线圈导线接头2 spark plug cable terminal 火花塞导线接头3 distributor cap 分电器盖4 distributor cap innercontact 分电器盖内触点5 distributor rotor arm 分电臂6 contact arm 触点臂7 breaker fixed contact 断电器固定触点8 breaker spring 断电器弹簧9 breaker plate 断电器底版10 distributor shaft 分电器轴11 distributor case 分电器壳12 cap clamp spring 分电器盖弹簧夹13 manual spark-advanceselector 手动点火提前角选择器14 vacuum spark-advancecontrol 真空式点火提前角调节装置15 centrifugal spark-advance cont rol 离心式点火提前角调节装置16 breaker cam 断电器凸轮17 capacitor 容电器18 lubricating felt 润滑油毡19 carbon contact 碳触头20 contact point 触点21 terminal 接头14.5 Spark plug 火花塞1 spark plug terminal pin 火花塞电极销2 pin insulation 电极销绝缘体3 spark plug insulator 火花塞绝缘体4 spark plug body rim 火花塞壳体凸缘5 spark plug body hexagon 火花塞六角壳体6 spark plug body 火花塞壳体7 center electrode 中心电极8 spark plug thread 火花塞螺纹9 spark gap 火花间隔10 earth electrode 接地电极11 hot plug 热型火花塞12 normal spark plug 标准火花塞13 cold plug 冷型火花塞14 heat conductance way 导热途径14.6 Electronic ignition 电子点火1 magnetic slug 磁铁芯2 magnetic sensor磁性传感器3 magnetic pluse generator（发电机、发生器）磁脉冲发生器4 electronic control unit 电子控制单元5 ignition coil 点火线圈6 vacuum sensor 真空传感器7 flywheel rim 飞轮齿圈8 ignition lock 点火开关9 high-tension distributor 高压分电器10 amplifier 放大器11 throttle valve switch 节气门开关12 reference angle switch 基准角开关13 rotational-speed sensor 转速传感器14 proximity sensor 非接触式传感器15 microprocessor 微处理机十五、发动机起动系Engine-starting system 15.1 Starting system 起动系1 starting switch 起动开关2 contact point 触点3 contact plate 接触盘4 magnetic coil 磁化线圈5 starting breaker 起动断电器6 magnetic core 铁芯。

发动机专业英语（柴油机和汽油机）INTERNAL COMBUSTION ENGINE（内燃机）1 principle of operation （⼯作原理）1.1 Engine and power（发动机和功率）Engine is used to produce power. The chemical energy in fuel is converted to heat by the burning of the fuel at a controlled rate. This process is called combustion. If engine combustion occurs with the power chamber, the engine is called internal combustion engine. If combustion takes place outside the cylinder, the engine is called an external combustion engine. Engine used in automobiles are internal combustion heat engines. Heat energy released in the combustion chamber raises the temperature of the combustion gases with the chamber. The increase in gas temperature causes the pressure of the gases to increase. The pressure developed within the combustion chamber is applied to the head of a piston to produce a usable mechanical force, which is then converted into useful mechanical power.1.2 Engine Terms （发动机术语）Linking the piston by a connecting rod to a crankshaft causes the gas to rotate the shaft through half a turn. The power stroke “uses up”the gas, so means must be provided to expel the burnt gas and recharge the cylinder with a fresh petrol-air mixture:this control of gas movement is the duty of the valves; an inlet valve allows the new mixture to enter at the right time and an exhaust valve lets out the burnt gas after the gas has done its job.Engine terms are:TDC(Top Dead Center): the position of the crank and piston when the piston is farther away from the crankshaft.BDC(Bottom Dead Center): the position of the crank and piston when the piston is nearest to the crankshaft.Stroke: the distance between BDC and TDC; stroke is controlled by the crankshaft. Bore: the internal diameter of the cylinder. Swept volume: the volume between TDC and BDC.Engine capacity: this is the swept volume of all the cylinders, e.g. a four-stroke having a capacity of two liters(2000cm) has a cylinder swept volume of 50cm. Clearance volume: the volume of the space above the piston when it is at TDC. Compression ratio = (swept vol + clearance vol)/(clearance vol)Two-stroke: a power stroke every revolution of the crank.Four-stroke: a power stroke every other revolution of the crank..1.3 The Four-stroke Spark-ignition Engine Cycle（四冲程⽕花塞点⽕发动机循环）The spark-ignition engine is an internal-combustion engine with externally supplied in ignition, which converts the energy contained in the fuel to kineticenergy.(动能)The cycle of operations is spread over four piston strokes. To complete the full cycle it takes two revolutions of the crankshaft. The operating strokes are:Intake strokeThis stroke introduces a mixture of atomized gasoline and air into the cylinder. The stroke starts when the piston moves downward from a position near the top of the cylinder. As the piston moves downward, a vacuum, or low-pressure area, is created. During the intake stroke, one of the ports is opened by moving the inlet valve. The exhaust valve remains tightly closed.Compression strokeAs the piston moves upward to compress the fuel mixture trapped in the cylinder,the valves are closed tightly. This compression action heats the air/fuel mixture slightly and confines it within a small areacalled the combustion chamber.Power strokeJust before the piston reaches the top of its compression stroke, an electrical spark is introduced from a spark plug screwed into the cylinder head.The spark ignites the compressed, heated mixture of fuel and air in the combustion chamber to cause rapid burning. The burning fuel produces intense heat that causes rapid expansion of the gases compressed within the cylinder. This pressure forces the piston downward. The downward stroke turns the crankshaft with great force. Exhaust strokeJust before the bottom of the power stroke, the exhaust valve opens. This allows the piston, as it moves upward, to push the hot, burned gases out through the open exhaust valve.Then, just before the piston reaches its highest point, the exhaust valve closes and the inlet valve opens. As the piston reaches the highest point in the cylinder, known as TDC, it starts back down again. Thus, one cycle ends and another begins immediately.1.4 Engine Overall Mechanics（发动机总体机构）The engine has hundreds of other parts. The major parts of engine are engine block, engine heads, pistons, connecting rods, crankshaft and valves. The other parts are joined to make systems. These systems are the fuel system, intake system, ignition system, cooling system, lubrication system and exhaust system. Each of these systems has a definite function. These systems will discussed in detail later.New WordsPiston 活塞Connecting rod 连杆Crankshaft 曲轴Power stoke 活塞⾏程Expel 排出Valve ⽓阀inlet(intake) valve 进⽓阀exhaust valve 排⽓阀TDC 上⽌点BDC 下⽌点Bore 缸径swept volume 有效容积engine capacity 发动机排量clearance volume 余隙容积,燃烧室容积compression ratio 压缩⽐revolution 旋转,转数every other 每隔⼀个spread over 分布,遍及intake stroke 进⽓⾏程compression stroke 压缩⾏程knock 敲缸,敲打exhaust stroke 排⽓⾏程engine block 发动机缸体lubrication 润滑2 Engine Block and Cylinder Head（发动机机体和⽓缸盖）2.1 Engine Block（发动机机体）The engine block is the basic frame of the engine. All other engine parts either fit inside it or fasten to it. It holds the cylinders,water jackets, and oil galleries. The engine block also holds the crankshaft, which fastens to the bottom of the block. The camshaft also fits inside the block, except on overhead-cam engines (OHC). In most cars, this block is made of gray iron, or an alloy (mixture) of gray iron and other metals, such as nickel or chromium. Engine blocks are castings.Some engine blocks, especially those in smaller cars, are made of cast aluminum. This metal is much lighter than iron. However, iron wears better than aluminum. Therefore, the cylinders in most aluminum engines are lined with iron or steel sleeves. These sleeves are called cylinder sleeves. Some engine blocks are made entirely of aluminum.2.2 Cylinder Head（⽓缸盖）The cylinder head fastens to the top of the block, just as a roof fits over a house. The underside forms the combustion chamber with the top of the piston. The most common cylinder head types are the hemi, wedge, and semi-hemi. All three of these terms refer to the shape of the engine's combustion chamber. The cylinder head carries the valves, valve springs and the rockers on the rocker shaft, this part of the valve gear being worked by the push-rods. Sometimes the camshaft is fitted directly into the cylinder head and operates on the valves without rockers. This is called an overhead camshaft arrangement. Like the cylinder block, the head is made from either cast iron or aluminum alloy.2.3 Gasket（垫圈）The cylinder head is attached to the block with high-tensile steel studs. The joint between the block and the head must be gas-tight so that none of the burning mixture can escape. This is achieved by using cylinder head gasket. This is a sandwich gasket, i.e. a sheet of asbestos （[ ?s'best?s ]⽯棉）between two sheets of copper, both these materials being able to withstand the high temperature and pressures within the engine.2.4 Oil Pan or Sump（油底壳）The oil pan is usually formed of pressed steel. The oil pan and the lower part of the cylinder block together are called the crankcase; they enclose, or encase, the crankshaft. The oil pump in the lubricating system draws oil from the oil pan and sends it to all working parts in the engine. The oil drains off and runs down into the pan. Thus, there is constant circulation ofoil between the pan and the working parts of the engine.New Wordsengine block 缸体cylinder head ⽓缸盖fasten 使固定water jacket ⽔套oil gallery 油道camshaft 凸轮轴overhead-cam(OHC) 顶置凸轮gray iron 灰铸铁alloy 合⾦nickel 镍chromium 铬casting 铸件head cover 汽缸盖罩intake manifold 进⽓总管distributor 分电器oil pan 油底壳aluminum 铝be lined with 镶有cylinder sleeve ⽓缸套hemi 半球形wedge 楔型，楔⼊semi-hemi 准半球形rocker 摇臂push-rod 推杆gasket 衬垫high-tensile ⾼强度的stud 螺栓gas-tight 密封的asbestos ⽯棉crankcase 曲轴箱，曲柄箱encase 封闭，把…包起来drain off 排出，流出Review Question1.What do TDC, BDC, stroke, compression ratio and engine capacity stand for?2.How do you calculate swept volume and compression ratio?3.What controls the length of the stroke?4.List the main parts of the engine overall mechanics?5.What are the main function of the engine block?3 Piston Connecting Rod and Crankshaft（活塞连杆和曲轴）3.1 Piston Assembly （活塞总称）The piston is an important part of a four-stroke cycle engine. Most pistons are made from cast aluminum. The piston, through the connecting rod, transfers to the crankshaft the force create by the burning fuel mixture. This force turns the crankshaft.Thin, circular, steel bands fit into grooves around the piston to seal the bottom of the combustion chamber. These bands are called piston rings. The grooves into which they fit are called ring grooves. A piston pin fits into a round hole in the piston. The piston pin joins the piston to the connecting rod. The thick part of the piston that holds the piston is the pin boss. The piston itself, its rings and the piston pin are together called the piston assembly.3.2 Piston（活塞）To withstand the heat of the combustion chamber, the piston must be strong. It also must be light, since it travels at high speeds as it moves up and down inside the cylinder. The piston is hollow. It is thick at the top where it take the brunt of the heat and the expansion force. It is thin at the bottom, where there is less heat. The top part of the piston is the head, or crown. The thin part is the skirt The sections between the ring grooves are called ring lands.The piston crown may be flat, concave,dome or recessed. In diesel engine, the combustion chamber may be formed totally or in part in the piston crown, depending on the method of injection. So they use pistons with different shapes.3.3 Piston Rings（活塞环）As Fig.1-9 shows, piston rings fit into ring grooves near the of the piston. In simplest terms, piston rings are thin, circular pieces of metal that fit into grooves in the tops of the pistons.In modern engines, each piston has three rings. (Piston in older engines sometimes had four rings, or even five.) The ring’s outside surface presses against the cylinder walls. Rings provide the needed seal between the piston and the cylinder walls. That is, only the rings contact the cylinder walls. The top two rings are to keep the gases in the cylinder and are called compression rings. The lower one prevents the oil splashed onto the cylinder bore from entering the combustion chamber, and is called an oil ring.Chrome-face cast-iron compression rings are commonly used in automobile engines. The chrome face provide a very smooth, wear-resistant surface.During the power stoke, combustion pressure on the combustion rings is very high. It causes them to untwist. Some of the high-pressure gas gets in back of the rings. This force the ring face into full contact with the cylinder wall. The combustionpressure also holds the bottom of the ring tightly against the bottom of the ring groove. Therefore, high combustion pressure causes a tighter seal between the ring face and the cylinder wall.3.4 Piston Pin （活塞销）The piston pin holds together the piston and the connecting rod. This pin fits into the piston pin holes and into a hole in the top end of the connecting rod. The top end of is much smaller than the end that fits on the crankshaft. This small end fits inside the bottom of the piston. The piston pin fits through one side of the piston, through the small end of the rod, and then through the other side of the piston. It holds the rod firmly in place in the center of the piston. Pins are made of high-strengh steel and have a hollow center. Many pins are chrome-plated to help them wear better.3.5 Connecting rod （连杆）The connecting rod is made of forgedhigh-strength steel. It transmits and motion from the piston to the crankpin on the crankshaft. The connecting rod little end is connected to the piston pin. A bush madefrom a soft metal, such as bronze, is used for this joint. The lower end of the connecting rod fits the crankshaft journal. This is called the big end. For this big-end bearing, steel-backed lead or tin shell bearing are used. These are the same as those used for the main bearings. The split of the big end is sometimes at an angle, so that it is small enough to be withdrawn through the cylinder bore. The connecting rod is made from forged alloy steel.3.6 Crankshaft（曲轴）The crankshaft, in conjunction with the connecting rod, coverts the reciprocating motion of the piston to the rotary motion needed to drive the vehicle. It is usually made from carbon steel which is alloyed with a small proportion of nickel.The main bearing journals fit into the cylinder block and the big end journals align with the connecting rods. At the rear end of the crankshaft is attached the flywheel, and at the front end are the driving whells for the timing gears, fan, cooling water and alternator.The throw of the crankshaft, the distance between the main journal and the big end centers, controls the length of the stroke. The stroke is double the throw, and the stroke-length is the distance that the piston travels from TDC to BDC and vice versa.3.7 Flywheel （飞轮）The flywheel is the made from carbon steel. It fit s onto the rear of the crankshaft. As well as keeping the engine rotating between power strokes it also carries the clutch, which transmits the drive to the transmission, and has the starter ring gear around its circumference. There is only one working stroke in four so a flywheel is needed to drive the crankshaft during the time that the engine is performing the non-power strokes.New Words Comprise 由。

Engine surges or stalls
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Fault symptoms and causes
• Engine runs rough or surges
Fault symptoms and causes
Engine leaks oil
Engine consumes oil excessively
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定期检查机油、冷却液、 刹车液等是否充足。
定期更换空气滤清器、 机油滤清器和燃油滤清 器。
定期检查轮胎气压和磨 损情况，确保轮胎安全。
定期进行发动机和车身 的清洁，保持车辆整洁。
Engine oil and filter
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正确选择机油的型号和粘度， 确保与发动机的要求相匹配。
used to connect to the OBD II port and retrieve diagnostic information.
Common troubleshooting
Check the battery and cables for corrosion or damage.
Check the air filter for blockage or damage.
电动汽车技术的应用
随着政府对环保政策的推动和消费者对环保的关注，电动汽车市场正在 不断增长。许多汽车品牌都在推出电动汽车或计划在未来推出相关车型， 如特斯拉、宝马和奥迪等。
Fuel cell technology
要点一
燃料电池技术
燃料电池是一种将燃料（通常是氢气 ）和氧化剂（通常是氧气）通过化学 反应转化为电能的装置。这种技术可 以提供清洁、高效的能源，并可用于 汽车和其他应用。