半机电性气门在一台单缸火花点火发动机排放影响-------外文翻译.doc
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半机电性气门在一台单缸火花点火发动机排放影响-------外文翻译,abstract: in this study, an electro-mechanical valve (emv) system for the intake valve of a four stroke, single cylinder, overhead valve and spark ignition (si)...
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Abstract: In this study, an electro-mechanical valve (EMV) system for the intake valve of a four stroke, single cylinder, overhead valve and spark ignition (SI) engine was designed and constructed. An engine with the EMV system and a standard engine were tested to observe the effects of the EMV on engine performance and emissions at different speeds under full load. The EMV engine showed improved engine power, engine torque and break specific fuel consumption (BSFC). A 66% decrease in CO emissions was also obtained with the EMV system, but hydrocarbons (HC) and NOx emissions increased by 12% and 13% respectively.
Key words: Semi electro-mechanic, Camless engine, Electro-mechanic engine valve, Engine performance, Emissions
doi:10.1631/jzus.A0900119 Document code: A CLC number: TH13
1.Introduction
All internal combustion engines (ICE) have mechanically actuated systems for opening intake and exhaust valves. Traditional valve systems have con-stant valve timing which restricts engine performance especially at low and at high engine speeds. Control-ling valve operation in ICE’s effective method for improving engine performance and emissions over a range of engine speeds. Parameters such as cam shape, valve timing, valve opening duration and valve lifting have a major impact on engine performance and emissions (Barkan and Dresner, 1989; Krauter et al., 1992; Hatano et al., 1993; Cinar, 1998; Akba, 2000; Pischinger et al., 2000; Stein et al., 1995).
摘要: 在这项研究中, 对于一个四冲程，单缸，架空进气阀机电阀门系统 阀门和火花点火（SI）的发动机设计和建造。根据对同一个标准的EMV系统和发动机引擎进行测试，以观察在不同的速度下，满载对发动机性能和排放影响的EMV标准。EMV的引擎表明改善发动机的功率、发动机扭矩那么燃油消耗将有很大改善。在EMV的工作条件下，CO排放量减少66％，，但碳氢化合物（HC）和氮氧化物排放量分别上升12％和13％。
关键词：半电技术、无凸轮发动机、机电式发动机气门、发动机性能、排放
主页：10.1631/jzus.A0900119 文献标识码：A 图书分类号：TH13
1.引言
几乎所有内燃机都有机械驱动的进排气阀门。在较低和较高转速下，传统的阀门系统正时限制了发动机性能。在ICE的领域里控制气门的运行是提高发动机性能和在宽广的速度范围里满足排放的有效方法。如凸轮形状，气门开启时间对发动机性能和排放量有重大影响。（巴坎和德雷斯纳，1989;克劳特等，1992;波多野等人，1993;彻纳尔，1998年;阿克巴什，2000年;皮兴格等，2000年;斯坦因等人，1995年）
Key words: Semi electro-mechanic, Camless engine, Electro-mechanic engine valve, Engine performance, Emissions
doi:10.1631/jzus.A0900119 Document code: A CLC number: TH13
1.Introduction
All internal combustion engines (ICE) have mechanically actuated systems for opening intake and exhaust valves. Traditional valve systems have con-stant valve timing which restricts engine performance especially at low and at high engine speeds. Control-ling valve operation in ICE’s effective method for improving engine performance and emissions over a range of engine speeds. Parameters such as cam shape, valve timing, valve opening duration and valve lifting have a major impact on engine performance and emissions (Barkan and Dresner, 1989; Krauter et al., 1992; Hatano et al., 1993; Cinar, 1998; Akba, 2000; Pischinger et al., 2000; Stein et al., 1995).
摘要: 在这项研究中, 对于一个四冲程，单缸，架空进气阀机电阀门系统 阀门和火花点火（SI）的发动机设计和建造。根据对同一个标准的EMV系统和发动机引擎进行测试，以观察在不同的速度下，满载对发动机性能和排放影响的EMV标准。EMV的引擎表明改善发动机的功率、发动机扭矩那么燃油消耗将有很大改善。在EMV的工作条件下，CO排放量减少66％，，但碳氢化合物（HC）和氮氧化物排放量分别上升12％和13％。
关键词：半电技术、无凸轮发动机、机电式发动机气门、发动机性能、排放
主页：10.1631/jzus.A0900119 文献标识码：A 图书分类号：TH13
1.引言
几乎所有内燃机都有机械驱动的进排气阀门。在较低和较高转速下，传统的阀门系统正时限制了发动机性能。在ICE的领域里控制气门的运行是提高发动机性能和在宽广的速度范围里满足排放的有效方法。如凸轮形状，气门开启时间对发动机性能和排放量有重大影响。（巴坎和德雷斯纳，1989;克劳特等，1992;波多野等人，1993;彻纳尔，1998年;阿克巴什，2000年;皮兴格等，2000年;斯坦因等人，1995年）
