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齿轮副gear pair平行轴齿轮副gear pair with parallel axes 相交轴齿轮副gear pair with intersecting axles交错轴齿轮副gear pair with non-parallel齿轮系gear train复合行星齿轮系compound planetary gear train配对齿轮mating gears小齿轮pinion大齿轮wheel行星齿轮planet gear行星架planet carrier太阳轮sun gear内齿圈ring gear外齿轮external gear内齿轮internal gear减速齿轮副speed reducing gear pair 增速齿轮副speed increasing gear train 中心距centre distance轴交角shaft angle连心线line of centres齿数比gear ratio传动比transmission ratio 减速比speed reducing ratio 参考平面reference planes轴平面axial plane基准平面datum plane节平面pitch plane端平面transverse plane法平面normal plane遐想曲面imaginary srufaces 分度曲面reference surface节曲面pitch surface齿顶曲面tip surface齿根曲面root surface基本齿廓basic rack tooth profile 产形齿条counterpart rack基准线datum line轮齿特性teeth characteristics 轮齿gear齿槽tooth space右旋齿right-hand teeth左旋齿left-hand teeth齿面tooth flank右侧齿面right flank左侧齿面left flank同侧齿面corresponding flanks 异侧齿面opposite flanks工作齿面working flank非工作齿面non-working flank 相齿齿面mating flank可用齿面rsable flank有效齿面active flank上齿面addendum flank 下齿面dedendum flank 齿根过渡曲面fillet齿顶面crest top land齿槽底面〔槽底〕bottom land齿廓tooth profile端面齿廓transverse profile 法向齿廓normal profile轴向齿廓axial profile齿线tooth trace齿棱tip surface模数module端面模数transverse module法面模数normal module轴向模数axial module径节diametral pitch当量齿数virtual number of teeth 头数number of threads螺旋线helix and spirals圆锥螺旋线conical spiral螺旋角helix angle导程lead导程角lead angle摆线trochoids外摆线eqicycloid圆心渐开线involute to a circle 延伸渐开线prolate involute 螺旋面helicoid干涉interference修形correction of the flank shape 修像tip relief修根root relief齿面修形axial modification齿端修薄end relief鼓形修整crowning挖根undercut瞬时轴instantaneous axis啮合engagement mesh端面啮合线transverse path of contact啮合齿面surface of action啮合平面plane of action重合度contact ratio and overlap ratio 总作用弧total arc of transmission纵向作用弧overlap arc总作用角total angle of transmission径向变位系数overlap arc圆程齿轮和圆柱齿轮副ckyclindrical gears and gear pairs 齿条rack直齿轮spur gear斜齿轮helical gear直齿条spur rack大字齿轮double-helical gear渐开线齿轮involute cylindrical gear 圆弧圆柱齿轮circular -arc gear分度圆柱面reference cylinder节圆柱面pitch cylinder基圆柱面base cylinder齿顶圆柱面tip cylinder齿根圆柱面root cylinder节点pitch point分度圆pitch line节圆pitch circle基圆base circle齿顶圆〔顶圆〕tip circle齿根圆〔根圆〕root circle法向螺旋线normal helix齿距pitch齿距角angular pitch公法线总长base tangent length分度圆直径reference diameter 齿高tooth depth齿宽face width齿顶高dedendum齿根高dedendum弦齿高chordal height固定弦齿高constant cord height 齿厚tooth thickness惊险电影thriller movie电影院常客cinemogoer以惊险的谋杀疑案为主线thriller nuder mystery at its heart 顶隙bottom clearance圆周侧隙circumferential backlash法向侧隙normal backlash径向侧隙radial backlash锥齿轮bevel gear锥齿轮副bevel gear pair准双曲面齿轮副hypoid gear pair冠轮crown gear端面齿盘contrate gear直齿锥齿轮straight bevel gear斜齿锥齿轮helical bevel gear曲线齿锥齿轮spiral bevel gear弧齿锥齿轮gleason spiral bevel gear 摆线齿锥齿轮overlikon spiral bevel gear 零度锥齿轮zerol bevel gear分度圆锥面reference cone分度圆reference circle分锥顶点reference cone apex外锥距outer cone distance分度圆直径reference diameter齿高tooth depth齿顶高addendum齿根高dedendum工作高度working depth弦齿高chordal height齿距pitch齿距pitch齿厚tooth thickness弦齿厚chordal tooth thickness齿槽宽space width齿宽face width安装距locating distance轮冠距tip distance冠顶距apex to crown顶隙bottom clearance分度圆锥角reference cone angle 齿顶角addendum angle齿根角dedendum angle压力角pressure angle齿厚半角tooth thickness half angle槽宽半角apace width half angle轮椅升降机Wheel chair lift图例legend工位station吊运装置overhead hoist更衣室restroom1号厂房工艺布置方案图proposal of the Plant I layout 合笼mate底盘平移台chassis shuttle车辆转移台bus transfer前围角板front wall angle cover后围侧板rear wall side cover保险杠bumper三类底盘three type chassis左侧围应力蒙皮R/S stretching skin <road side>中涂floating coat拼装台collector切割轮口wheel -arch cutting内饰trim线束harness返工re-doing轮罩护板wheel house发车前准备pre-delivery举升hoist小批量产品be pilot2 套two kits配电站power transformer substation裙板skirt发动机托架engine holding frame诊断报警系统diagnosis and alarming system 互换性interchangeability缩微图纸microfiche files总装final assembly磷化phosphating仪表板dash board切齐trimming结构完整性structure integrity自动愈合的防腐材料self-healing corrosion preventative material 长途客车inter-city bus改装厂refitting factory遮阳板sun visor随车工具tool box钢化玻璃toughened grass异形钢管special steel pipe全天候空调系统full range A/C强制通风ram-air ventilation停机时间downtime无公害柴油clean diesel宽敞悬臂式座椅roomy cantilevered seat防滑地板no-skid floor织物纹里铝合金textured aluminum extrution爬坡能力grade ability排水阀drain valve除湿器moisture ejector怠速时at idle琴式驱动桥banjo type drive axle通风口duct恒温控制thermostatic control平衡水箱surge tank变光开关simmer switch消音器muffler防破坏vandal resistant聚碳化透镜poly-carbonate len镀锌板galvanized plate搭接lap亮丽的外表smart apperance隐藏式固定concealed fastening水洼ponding发动机中置式客车bus with under floor engine 组合式客车车身modular bus body薄壳式结构shell construction衬垫pad空气导流板air deflector搁梁shelf beam腰梁waist rail梭梁stabilizing beam腰带式安全带diagonal safety belt压条trim strip嵌条insertion strip翼板fender斜撑bracing piece转向盘回正性试验test of steering wheel returnability转向盘转角脉冲试验steering wheel impulse input test转向盘转角阶跃输入试验steering wheel step input or transient state yaw response test极限侧向加速度试验limiting lateral acceleration test汽车平顺性随机输入行驶试验automobile ride random input running test汽车平顺性单脉冲输入行驶试验automobile ride single pulse input running test 汽车悬挂系统固有频率与阻尼比的测定试验measurement of natural frequency and damping raito of suspension功率突然变化影响试验test of effect of sudden power change收油门后控制试验test of control at breakway横风稳定性试验test of crosswind stability反冲试验kick-back test轮胎爆破响应时间试验test of burst response of tyre绕过障碍物试验obstacle avoidance test移线试验lane change testJ型转弯试验test of J turn频率响应时间试验frequency response test瞬态响应时间试验transient response test阶路响应时间试验step response test脉冲响应试验pulse response test静态操舵力试验static steering effort test悬架举升试验jack-up test of suspension耐翻倾试验test of overturning immunity轮辋错动试验rim slip test风洞试验wind tunnel test制动稳定性试验test of braking stability最小转弯直径试验minimum turning diameter test 操舵力试验steering effort test汽车发动机类型type发动机engine内燃机intenal combusiton engine动力机装置power unit汽油机gasoline engine汽油喷射式汽油机gasoline-injection engine火花点火式发动机spark ignition engine压燃式发动机compression ignition engine往复式内燃机reciprocating internal combustion engine 化油器式发动机carburetor engine柴油机diesel engine转子发动机rotary engine旋轮线转子发动机rotary trochoidal engine二冲程发动机two-stroke engine四冲程发动机four-stroke engine直接喷射式柴油机direct injection engine间接喷射式柴油机indirect injection engine增压式发动机supercharged engine风冷式发动机air-cooled engine油冷式发动机oil-cooled engine水冷式发动机water-cooled engine自然进气式发动机naturally aspirated engine煤气机gas engine液化石油气发动机liquified petroleum gas engine柴油煤气机diesel gas engine多种燃料发动机multifuel engine石油发动机hydrocarbon engine双燃料发动机duel fuel engine热球式发动机hot bulb engine多气缸发动机multiple cylinder engine 对置活塞发动机opposed piston engine 对置气缸式发动机opposed-cylinder engine 十字头型发动机cross head engine直列式发动机in-line engine星型发动机radial engine筒状活塞发动机trunk-piston engine斯特林发动机stirling engine套阀式发动机knight engine气孔扫气式发动机port-scavenged engine 倾斜式发动机slant engine前置式发动机front-engine后置式发动机rear-engine中置式发动机central engine左侧发动机left-hand engine右侧发动机right-hand engine短冲程发动机oversquare engine长冲程发动机undersquare engine等径程发动机square engine顶置凸轮轴发动机overhead camshaft engine双顶置凸轮轴发动机dual overhead camshaft engine V形发动机V-engine顶置气门发动机valve in-head engine侧置气门发动机side valve engine无气门发动机valveless engine多气门发动机multi-valve engine 卧式发动机horizontal engine 斜置式发动机inclined engine立式发动机vertical engineW形发动机w-engineI形发动机I-engineL形发动机L-engineF形发动机F-engine性能performance二冲程循环two-stroke cycle四冲程循环four-stroke cycle狄塞尔循环diesel cycle奥托循环otto cycle混合循环mixed cycle定容循环constant volume cycle 工作循环working cycle等压循环constant pressure cycle 理想循环ideal cycle热力循环thermodynamic cycle 冲程stroke活塞行程piston stroke长行程long stroke上行程up stroke下行程down stroke进气行程intake stroke充气行程charging stroke压缩行程compression stroke 爆炸行程explosion stroke膨胀行程expansion stroke 动力行程power stroke排气行程exhaust stroke膨胀换气行程expansion-exchange stroke换气压缩行程exchange-compression stroke止点dead center上止点top dead center<upper dead center>下止点lower dead center<bottom dead center> 上止点前budc<before upper dead center>上止点后atdc<after top dead cetner>下止点前bbdc<before bottom dead center>下止点后abdc<after bottom dead center>缸径cylinder bore缸径与行程bore and stroke空气室energy chamber气缸余隙容积cylinder clearance volume燃烧室容积combustion chamber volume 气缸最大容积maximum cylinder volume 压缩室compression chamber排气量displacement发动机排量engine displacement活塞排量piston swept volume气缸容量cylinder capacity单室容量single-chamber capacity 容积法volumetry压缩比compression ratio临界压缩比critical compression ratio 膨胀比expansion ratio面容比surface to volume ratio 行程缸径比stroke-bore ratio混合比mixture ratio压缩压力compression pressure制动平均有效压力brake mean effective pressure<bmep> 空燃比air fuel ratio燃空比fuel air ratio燃料当量比fuel equivalence ratio扭矩torque单缸功率power per cylinder升功率power per liter升扭矩torque per liter升质量mass per liter减额功率derating power输出马力shaft horsepower马力小时,马力时horsepower-hour总马力gross horse power总功率gross power净功率net power燃油消耗量fuel consumption比燃料消耗率specific fuel consumption 空气消耗率air consumption机油消耗量oil consumption有效马力net horse power额定马力rated horse power马力重量系数horsepower-weight factor 制动功率brake horse power制动热效率brake thermal efficiency总效率overall efficiency排烟极限功率smoke limiting horsepower 功率曲线power curve机械损失mechanical loss机械效率mechanical efficiency有效热效率effective thermal efficiency充气系数volumetric efficiency过量空气系数coefficient of excess air适应性系数adaptive coefficient扭矩适应性系数coefficient of torque adaptibility 转速适应性系数speed adaptive coefficient强化系数coefficient of intensification校正系数correction factor换算系数conversion factor活塞平均速度mean piston speed发动机转速engine speed <rotational frequency> 怠速转速idling speed经济转速economic speed起动转速starting speed最低稳定工作转速lowest continuous speed with load 最大扭矩转速speed at maximum torque最高空转转速maximum no load governed speed 调速speed governing超速overspeed怠速idling转速波动率speed fluctuation rate工况working condition<operating mode> 额定工况declared working condition变工况variable working condition稳定工况steady working condition空载no-load全负荷full load超负荷overload部分负荷part load充量〔进气〕charge旋转方向direction of rotation 顺时针clockwise逆时针counter-clockwise 左转left-hand rotation 右转right-hand rotation 外径major diameter中径pitch diameter内径minor diameter径向间隙radial clearance发动机性能engine performance 加载性能loading performance起动性能starting performance加速性能acceleration performance动力性能power performance排放性能emission performance空转特性no load characteristics负荷特性part throttle characteristics调速特性governor control characteristics 万有特性mapping characteristics稳定调速率steady state speed governing rate 气缸体和气缸盖cylinder block and head气缸体cylinder block整体铸造cast inblock <cast enblock> 发动机罩engine bonnet气缸体加强筋engine block stiffening rib 气缸cylinder〔转子机〕缸体stator缸径cylinder bore气缸体机架cylinder block frame气缸盖cylinder head配气机构箱valve mechanism casing气缸体隔片cylinder spacer气缸盖密封环cylinder head ring gasket气缸盖垫片cylinder head gasket气缸套cylinder liner<cylinder sleeve> 干式缸套dry cylinder liner湿式缸套wet cylinder liner气缸水套water jacket膨胀塞expansion plug防冻塞freeze plug气缸壁cylinder wall环脊ring ridge排气口exhaust port中间隔板intermediate bottum导板guideway创成半径〔转子机〕generating radius缸体宽度〔转子机〕operating width机柱column燃烧室combustion chamber主燃烧室main combustion chamber 副燃烧室subsidiary combustion chamber预燃室prechamber涡流燃烧室`swirl combustion chamber分开式燃烧室divided combustion chamber涡流式燃烧室turbulence combustion chamber半球形燃烧室hemispherical combustion chamber 浴盆形燃烧室bathtub section combustion chamber L形燃烧室L-combustion chamber楔形燃烧室wedge-section combustion chamber 开式燃烧室open combustion chamber封闭喷射室closed spray chamber活塞顶内燃烧室piston chamber爆发室explosion chamber燃烧室容积比volume ratio of combustion cahmber燃烧室口径比surface-volume ratio of combustion chamber 通道面积比area ratio of combustion chamber passage 曲轴箱通气口crankcase breather凸轮轴轴承座camshaft bearing bush seat定时齿轮室罩camshaft drive<gear>cover曲轴箱检查孔盖crankcase door曲轴箱防爆门crankcase explosion proof door 主轴承盖main bearing cap气缸盖罩valve mechanism cover飞轮壳flywheel cover扫气储器scavenging air receiver活塞piston裙部开槽活塞split skirt pistonU形槽活塞U-slot piston滚花修复活塞knurled piston圆顶活塞dome head piston平顶活塞flat head piston凸顶活塞crown head piston<convex head piston> 凹顶活塞concave head piston阶梯顶活塞step-head piston筒形活塞trunk piston椭圆形活塞oval piston抗热变形活塞autothermic piston不变间隙活塞constant clearance piston镶因瓦钢片活塞invar strut piston直接冷却式活塞direct-cooled piston间接冷却式活塞indirect cooled piston 滑裙活塞slipper piston活塞速度piston speed活塞顶部piston head活塞裙部piston skirt整体活塞裙solid skirt活塞裙扩大衬簧piston skirt expander 滑履式活塞裙slipper skirt隔热槽heat dam活塞标记piston mark活塞销。
齿轮副gear pair平行轴齿轮副gear pair with parallel axes 相交轴齿轮副gear pair with intersecting axles交错轴齿轮副gear pair with non-parallel齿轮系gear train复合行星齿轮系compound planetary gear train配对齿轮mating gears小齿轮pinion大齿轮wheel行星齿轮planet gear行星架planet carrier太阳轮sun gear内齿圈ring gear外齿轮external gear内齿轮internal gear减速齿轮副speed reducing gear pair 增速齿轮副speed increasing gear train 中心距centre distance轴交角shaft angle连心线line of centres齿数比gear ratio传动比transmission ratio 减速比speed reducing ratio 参考平面reference planes轴平面axial plane基准平面datum plane节平面pitch plane端平面transverse plane法平面normal plane遐想曲面imaginary srufaces 分度曲面reference surface节曲面pitch surface齿顶曲面tip surface齿根曲面root surface基本齿廓basic rack tooth profile 产形齿条counterpart rack基准线datum line轮齿特性teeth characteristics 轮齿gear齿槽tooth space右旋齿right-hand teeth左旋齿left-hand teeth齿面tooth flank右侧齿面right flank左侧齿面left flank同侧齿面corresponding flanks 异侧齿面opposite flanks工作齿面working flank非工作齿面non-working flank 相齿齿面mating flank可用齿面rsable flank有效齿面active flank上齿面addendum flank 下齿面dedendum flank 齿根过渡曲面fillet齿顶面crest top land齿槽底面（槽底）bottom land齿廓tooth profile端面齿廓transverse profile 法向齿廓normal profile轴向齿廓axial profile齿线tooth trace齿棱tip surface模数module端面模数transverse module法面模数normal module轴向模数axial module径节diametral pitch当量齿数virtual number of teeth 头数number of threads螺旋线helix and spirals圆锥螺旋线conical spiral螺旋角helix angle导程lead导程角lead angle摆线trochoids外摆线eqicycloid圆心渐开线involute to a circle 延伸渐开线prolate involute 螺旋面helicoid干涉interference修形correction of the flank shape 修像tip relief修根root relief齿面修形axial modification齿端修薄end relief鼓形修整crowning挖根undercut瞬时轴instantaneous axis啮合engagement mesh端面啮合线transverse path of contact啮合齿面surface of action啮合平面plane of action重合度contact ratio and overlap ratio 总作用弧total arc of transmission纵向作用弧overlap arc总作用角total angle of transmission径向变位系数overlap arc圆程齿轮和圆柱齿轮副ckyclindrical gears and gear pairs 齿条rack直齿轮spur gear斜齿轮helical gear直齿条spur rack大字齿轮double-helical gear渐开线齿轮involute cylindrical gear 圆弧圆柱齿轮circular -arc gear分度圆柱面reference cylinder节圆柱面pitch cylinder基圆柱面base cylinder齿顶圆柱面tip cylinder齿根圆柱面root cylinder节点pitch point分度圆pitch line节圆pitch circle基圆base circle齿顶圆（顶圆）tip circle齿根圆（根圆）root circle法向螺旋线normal helix齿距pitch齿距角angular pitch公法线总长base tangent length分度圆直径reference diameter 齿高tooth depth齿宽face width齿顶高dedendum齿根高dedendum弦齿高chordal height固定弦齿高constant cord height 齿厚tooth thickness惊险电影thriller movie电影院常客cinemogoer以惊险的谋杀疑案为主线thriller nuder mystery at its heart 顶隙bottom clearance圆周侧隙circumferential backlash法向侧隙normal backlash径向侧隙radial backlash锥齿轮bevel gear锥齿轮副bevel gear pair准双曲面齿轮副hypoid gear pair冠轮crown gear端面齿盘contrate gear直齿锥齿轮straight bevel gear斜齿锥齿轮helical bevel gear曲线齿锥齿轮spiral bevel gear弧齿锥齿轮gleason spiral bevel gear 摆线齿锥齿轮overlikon spiral bevel gear 零度锥齿轮zerol bevel gear分度圆锥面reference cone分度圆reference circle分锥顶点reference cone apex外锥距outer cone distance分度圆直径reference diameter齿高tooth depth齿顶高addendum齿根高dedendum工作高度working depth弦齿高chordal height齿距pitch齿距pitch齿厚tooth thickness弦齿厚chordal tooth thickness齿槽宽space width齿宽face width安装距locating distance轮冠距tip distance冠顶距apex to crown顶隙bottom clearance分度圆锥角reference cone angle 齿顶角addendum angle齿根角dedendum angle压力角pressure angle齿厚半角tooth thickness half angle槽宽半角apace width half angle轮椅升降机Wheel chair lift图例legend工位station吊运装置overhead hoist更衣室restroom1号厂房工艺布置方案图proposal of the Plant I layout 合笼mate底盘平移台chassis shuttle车辆转移台bus transfer前围角板front wall angle cover后围侧板rear wall side cover保险杠bumper三类底盘three type chassis左侧围应力蒙皮R/S stretching skin (road side)中涂floating coat拼装台collector切割轮口wheel -arch cutting内饰trim线束harness返工re-doing轮罩护板wheel house发车前准备pre-delivery举升hoist小批量产品be pilot2 套two kits配电站power transformer substation裙板skirt发动机托架engine holding frame诊断报警系统diagnosis and alarming system 互换性interchangeability缩微图纸microfiche files总装final assembly磷化phosphating仪表板dash board切齐trimming结构完整性structure integrity自动愈合的防腐材料self-healing corrosion preventative material 长途客车inter-city bus改装厂refitting factory遮阳板sun visor随车工具tool box钢化玻璃toughened grass异形钢管special steel pipe全天候空调系统full range A/C强制通风ram-air ventilation停机时间downtime无公害柴油clean diesel宽敞悬臂式座椅roomy cantilevered seat防滑地板no-skid floor织物纹里铝合金textured aluminum extrution爬坡能力grade ability排水阀drain valve除湿器moisture ejector怠速时at idle琴式驱动桥banjo type drive axle通风口duct恒温控制thermostatic control平衡水箱surge tank变光开关simmer switch消音器muffler防破坏vandal resistant聚碳化透镜poly-carbonate len镀锌板galvanized plate搭接lap亮丽的外表smart apperance隐藏式固定concealed fastening水洼ponding发动机中置式客车bus with under floor engine 组合式客车车身modular bus body薄壳式结构shell construction衬垫pad空气导流板air deflector搁梁shelf beam腰梁waist rail梭梁stabilizing beam腰带式安全带diagonal safety belt压条trim strip嵌条insertion strip翼板fender斜撑bracing piece转向盘回正性试验test of steering wheel returnability转向盘转角脉冲试验steering wheel impulse input test转向盘转角阶跃输入试验steering wheel step input or transient state yaw response test极限侧向加速度试验limiting lateral acceleration test汽车平顺性随机输入行驶试验automobile ride random input running test汽车平顺性单脉冲输入行驶试验automobile ride single pulse input running test 汽车悬挂系统固有频率与阻尼比的测定试验measurement of natural frequency and damping raito of suspension功率突然变化影响试验test of effect of sudden power change收油门后控制试验test of control at breakway横风稳定性试验test of crosswind stability反冲试验kick-back test轮胎爆破响应时间试验test of burst response of tyre绕过障碍物试验obstacle avoidance test移线试验lane change testJ型转弯试验test of J turn频率响应时间试验frequency response test瞬态响应时间试验transient response test阶路响应时间试验step response test脉冲响应试验pulse response test静态操舵力试验static steering effort test悬架举升试验jack-up test of suspension耐翻倾试验test of overturning immunity轮辋错动试验rim slip test风洞试验wind tunnel test制动稳定性试验test of braking stability最小转弯直径试验minimum turning diameter test 操舵力试验steering effort test汽车发动机类型type发动机engine内燃机intenal combusiton engine动力机装置power unit汽油机gasoline engine汽油喷射式汽油机gasoline-injection engine火花点火式发动机spark ignition engine压燃式发动机compression ignition engine往复式内燃机reciprocating internal combustion engine化油器式发动机carburetor engine柴油机diesel engine转子发动机rotary engine旋轮线转子发动机rotary trochoidal engine二冲程发动机two-stroke engine四冲程发动机four-stroke engine直接喷射式柴油机direct injection engine间接喷射式柴油机indirect injection engine 增压式发动机supercharged engine风冷式发动机air-cooled engine油冷式发动机oil-cooled engine水冷式发动机water-cooled engine自然进气式发动机naturally aspirated engine 煤气机gas engine液化石油气发动机liquified petroleum gas engine 柴油煤气机diesel gas engine多种燃料发动机multifuel engine石油发动机hydrocarbon engine双燃料发动机duel fuel engine热球式发动机hot bulb engine多气缸发动机multiple cylinder engine对置活塞发动机opposed piston engine对置气缸式发动机opposed-cylinder engine十字头型发动机cross head engine直列式发动机in-line engine星型发动机radial engine筒状活塞发动机trunk-piston engine斯特林发动机stirling engine套阀式发动机knight engine气孔扫气式发动机port-scavenged engine 倾斜式发动机slant engine前置式发动机front-engine后置式发动机rear-engine中置式发动机central engine左侧发动机left-hand engine右侧发动机right-hand engine短冲程发动机oversquare engine长冲程发动机undersquare engine等径程发动机square engine顶置凸轮轴发动机overhead camshaft engine双顶置凸轮轴发动机dual overhead camshaft engine V形发动机V-engine顶置气门发动机valve in-head engine侧置气门发动机side valve engine无气门发动机valveless engine 多气门发动机multi-valve engine 卧式发动机horizontal engine 斜置式发动机inclined engine立式发动机vertical engineW形发动机w-engineI形发动机I-engineL形发动机L-engineF形发动机F-engine性能performance二冲程循环two-stroke cycle四冲程循环four-stroke cycle狄塞尔循环diesel cycle奥托循环otto cycle混合循环mixed cycle定容循环constant volume cycle 工作循环working cycle等压循环constant pressure cycle 理想循环ideal cycle热力循环thermodynamic cycle 冲程stroke活塞行程piston stroke长行程long stroke上行程up stroke下行程down stroke进气行程intake stroke充气行程charging stroke压缩行程compression stroke 爆炸行程explosion stroke膨胀行程expansion stroke 动力行程power stroke排气行程exhaust stroke膨胀换气行程expansion-exchange stroke换气压缩行程exchange-compression stroke止点dead center上止点top dead center(upper dead center)下止点lower dead center(bottom dead center) 上止点前budc(before upper dead center)上止点后atdc(after top dead cetner)下止点前bbdc(before bottom dead center)下止点后abdc(after bottom dead center) 缸径cylinder bore缸径与行程bore and stroke空气室energy chamber气缸余隙容积cylinder clearance volume燃烧室容积combustion chamber volume 气缸最大容积maximum cylinder volume压缩室compression chamber排气量displacement发动机排量engine displacement活塞排量piston swept volume气缸容量cylinder capacity单室容量single-chamber capacity 容积法volumetry压缩比compression ratio临界压缩比critical compression ratio 膨胀比expansion ratio面容比surface to volume ratio 行程缸径比stroke-bore ratio混合比mixture ratio压缩压力compression pressure制动平均有效压力brake mean effective pressure(bmep) 空燃比air fuel ratio燃空比fuel air ratio燃料当量比fuel equivalence ratio扭矩torque单缸功率power per cylinder升功率power per liter升扭矩torque per liter升质量mass per liter减额功率derating power输出马力shaft horsepower马力小时，马力时horsepower-hour总马力gross horse power总功率gross power净功率net power燃油消耗量fuel consumption比燃料消耗率specific fuel consumption 空气消耗率air consumption机油消耗量oil consumption有效马力net horse power额定马力rated horse power马力重量系数horsepower-weight factor 制动功率brake horse power制动热效率brake thermal efficiency总效率overall efficiency排烟极限功率smoke limiting horsepower 功率曲线power curve机械损失mechanical loss机械效率mechanical efficiency有效热效率effective thermal efficiency充气系数volumetric efficiency过量空气系数coefficient of excess air适应性系数adaptive coefficient扭矩适应性系数coefficient of torque adaptibility 转速适应性系数speed adaptive coefficient强化系数coefficient of intensification校正系数correction factor换算系数conversion factor活塞平均速度mean piston speed发动机转速engine speed (rotational frequency) 怠速转速idling speed经济转速economic speed起动转速starting speed最低稳定工作转速lowest continuous speed with load 最大扭矩转速speed at maximum torque最高空转转速maximum no load governed speed 调速speed governing超速overspeed怠速idling转速波动率speed fluctuation rate工况working condition(operating mode) 额定工况declared working condition变工况variable working condition稳定工况steady working condition空载no-load全负荷full load超负荷overload部分负荷part load充量（进气）charge旋转方向direction of rotation 顺时针clockwise逆时针counter-clockwise 左转left-hand rotation 右转right-hand rotation 外径major diameter中径pitch diameter内径minor diameter径向间隙radial clearance发动机性能engine performance加载性能loading performance起动性能starting performance加速性能acceleration performance动力性能power performance排放性能emission performance空转特性no load characteristics负荷特性part throttle characteristics调速特性governor control characteristics 万有特性mapping characteristics稳定调速率steady state speed governing rate气缸体和气缸盖cylinder block and head 气缸体cylinder block整体铸造cast inblock (cast enblock) 发动机罩engine bonnet气缸体加强筋engine block stiffening rib 气缸cylinder（转子机）缸体stator缸径cylinder bore气缸体机架cylinder block frame气缸盖cylinder head配气机构箱valve mechanism casing气缸体隔片cylinder spacer气缸盖密封环cylinder head ring gasket气缸盖垫片cylinder head gasket气缸套cylinder liner(cylinder sleeve) 干式缸套dry cylinder liner湿式缸套wet cylinder liner气缸水套water jacket膨胀塞expansion plug防冻塞freeze plug气缸壁cylinder wall环脊ring ridge排气口exhaust port中间隔板intermediate bottum 导板guideway创成半径（转子机）generating radius缸体宽度（转子机）operating width机柱column燃烧室combustion chamber 主燃烧室main combustion chamber副燃烧室subsidiary combustion chamber预燃室prechamber涡流燃烧室`swirl combustion chamber分开式燃烧室divided combustion chamber涡流式燃烧室turbulence combustion chamber半球形燃烧室hemispherical combustion chamber 浴盆形燃烧室bathtub section combustion chamber L形燃烧室L-combustion chamber楔形燃烧室wedge-section combustion chamber 开式燃烧室open combustion chamber封闭喷射室closed spray chamber活塞顶内燃烧室piston chamber爆发室explosion chamber燃烧室容积比volume ratio of combustion cahmber燃烧室口径比surface-volume ratio of combustion chamber 通道面积比area ratio of combustion chamber passage 曲轴箱通气口crankcase breather凸轮轴轴承座camshaft bearing bush seat定时齿轮室罩camshaft drive(gear)cover曲轴箱检查孔盖crankcase door曲轴箱防爆门crankcase explosion proof door 主轴承盖main bearing cap气缸盖罩valve mechanism cover飞轮壳flywheel cover扫气储器scavenging air receiver活塞piston裙部开槽活塞split skirt pistonU形槽活塞U-slot piston滚花修复活塞knurled piston圆顶活塞dome head piston平顶活塞flat head piston凸顶活塞crown head piston(convex head piston) 凹顶活塞concave head piston阶梯顶活塞step-head piston筒形活塞trunk piston椭圆形活塞oval piston抗热变形活塞autothermic piston不变间隙活塞constant clearance piston镶因瓦钢片活塞invar strut piston直接冷却式活塞direct-cooled piston 间接冷却式活塞indirect cooled piston 滑裙活塞slipper piston活塞速度piston speed活塞顶部piston head活塞裙部piston skirt整体活塞裙solid skirt活塞裙扩大衬簧piston skirt expander 滑履式活塞裙slipper skirt隔热槽heat dam活塞标记。
