492Q汽油机运行经济性研究

Study of the Economic Benefit of Gasoline Engine Operation

本文针对４９２Ｑ汽油机运行经济性问题进行了较为深入的研究。提高平均有效压力Ｐｅ是改善汽油机燃油经济性的有效措施，合理组织燃烧过程和改善换气过程是提高汽油机经济性能指标的基本途径。对４９２Ｑ汽油机燃烧室、进气系统进行改进设计后，该机经济性能指标得以显著提高。

This paper carries on a comparatively detailedstudy of the problems of the economi benefit of the opera-tion of the 492Q Gasoline Engine, on which basis the paperputs forward an efficient measure to raise the average ef-fective pressure PE to improve the economic benefit of thegasoline burning in the gasoline engines, and it also statesthat an essential way to raise the economic benefit of thegasoline engine is to properly arrange the proccess of theburning and to improve the proccess of the air changing. Aninnovation in the air-supply system in burning cabinet canbring about a remarkable increase of the economic benefitof the operation of such engines.