平均有效压力

结果表明，柴油机采用EGR后，由于废气的引入，使柴油机的平均有效压力、输出功率和有效热效率随着EGR率的增加而降低。

The results showed that when EGR ratio was increased , an associated consequence of it was the reduction in the mean effective pressure , power output and thermal efficiency of the engine .

中小型柴油机简谐力矩幅值与平均有效压力也呈3次方关系。

Small Diesel Engine torque harmonic amplitude and mean effective pressure was between 3 powers .

实时性能对于成功的自动标定执行来说是非常关键的。通常这会用燃烧参数例如爆震，CA50或者平均有效压力以用于闭环控制。

Real-time performance is critical to the successful implementation of automated mapping processes , which typically use combustion parameters such as knock , CA50 or IMEP for closed loop control .

狄塞尔平均有效压力

Dissel mean effective pressure

结果表明：发动机转速和平均有效压力对污染物排放有较大影响；

The results show that the engine speed and brake mean effective pressure ( BMEP ) have great influences on emissions .

增压中冷柴油机的平均有效压力（或增压度）越高，则其工作过程对环境温度越敏感；就这类柴油机而言，环境温度主要是通过增压压力的变化来影响气缸内工作过程。

As far as turbocharged diesel engine with intercooling is concerned , the ambient temperature influences the engine working process mainly through the supercharging pressure variation ;

由此得到柴油机稳态工作过程的工作特性参数，如压缩压力、最高爆发压力和平均有效压力等参数。

Then , the normal working parameters of this engine can be simulated , such as the compression pressure , maximum combustion gas pressure , and effective pressure and so on .

研究结果表明：在相同平均有效压力下混合燃料的燃油消耗率有所增加，但折算成当量汽油的燃油消耗率下降，热效率提高。

The experimental results show that the effective brake fuel consumption is increased while the gasoline equivalent fuel consumption is decreased and the engine thermal efficiency is improved compared with those of gasoline fuel .

随着增压技术向高增压比方向的发展，为了进一步完善柴油机与增压器的匹配性能和提高柴油机的平均有效压力，需要进行一系列增压系统试验研究。

With the development of charging technology to high pressure ratio , in order to improve the matching characteristic of charger and diesel engine and raise diesel engine 's mean effective pressure , much experimental investigation will be done .

根据国外大功率高速船用柴油机20多年发展状况，以柴油机强化指标、平均有效压力等主要技术参数为主要对象，分析并提出大功率高速船用柴油机主要技术参数的发展趋势。

According to development status of high power high-speed marine diesel engines abroad in recent over 20 years . Strengthening index , mean effective pressure and other major technology parameters are discussed seriously and their development tendency is analyzed and proposed .