内燃机专业英语词汇

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1、Internalcombustionengine内燃机Powerunit动力装置Sparkignitionengine火花塞点火式发动机Compressionignitionengine压燃式发动机Two-stroke/Four-strokeengine二冲程/四冲程发动机Direct/Indirectinjectionengine直喷式发动机/非直喷式发动机Reciprocatinginternalcombustionengine往复式内燃机Carburetorengine化油器式发动机Rotaryengine转子发动机Superchargedengine增压发动机Air(o

2、il)-cooledengine风冷（油冷）发动机Naturallyaspiratedengine自然吸气发动机Liquefiedpetroleumgasengine液化石油气发动机Dieselgasengine柴油煤气发动机Multi-fuelengine多燃料发动机Opposed-cylinder/Opposed-pistonengine对置气缸/对置活塞发动机Crossheadengine十字头型发动机In-lineengine直列式发动机Radialengine星型发动机Stirlingengine斯特林发动机Front-engine前置式发动机Rear-engine后

3、置式发动机Centralengine中置式发动机汽油机gasolineengine汽油喷射式汽油机gasoline-injectionengine柴油机dieselengine旋轮线转子发动机rotarytrochoidalengineLeft(right)-handengine左（右）侧发动机(Dual)overheadcamshaftengine（双）顶置凸轮轴发动机(D)OHCvalvein-headengine顶置气门发动机sidevalveengine侧置气门发动机multi-valveengine多气门发动机horizontalengine卧式发动机vertical

4、engine立式发动机oversquare/undersquareengine短冲程/长冲程发动机engineperformance发动机性能two(four)-strokecycle二（四）冲程循环dieselcycle狄塞尔循环ottocycle奥托循环mixedcycle混合循环constantvolume(pressure)cycle等容（等压）循环wokingcycle工作循环idealcycle理想循环thermodynamiccycle热力循环up(down)stroke上（下）行程intakestroke进气行程chargingstroke充气行程compres

5、sionstroke压缩行程expansionstroke膨胀行程powerstroke作功行程exhauststroke排气行程top(bottom)deadcenter上（下）止点BTDC(beforetopdeadcenter)上止点前ATDC(aftertopdeadcenter)上止点后Bore缸径Cylinderclearancevolume气缸余隙容积Combustionchambervolume燃烧室容积Displacement排量Compressionratio压缩比Criticalcompressionratio临界压缩比Expansionratio膨胀比S

6、urfacetovolumeratio面容比Stroke-boreratio行程缸径比Compressionpressure压缩压力BMEP(brakemeaneffectivepressure)制动平均有效压力Airfuelratio(fuelairratio)空燃比（燃空比）Fuelequivalenceratio燃料当量比Powerperlitter(cylinder)升功率（单缸功率）Grosspower(horsepower)总功率（马力）Netpower净功率Fuelconsumption燃油消耗量Specificfuelconsumption比燃油消耗率Power

7、curve功率曲线Mechanicalloss机械损失Mechanicalefficiency机械效率Effectivethermalefficiency有效热效率Volumetricefficiency充气系数Coefficientofexcessair过量空气系数Coefficientoftorqueadaptability扭矩适应性系数Coefficientofintensification强化系数Correctionfactor校正系数Economicspeed经济转速Startin