TY1100柴油机缩口ω形燃烧室与直口ω形燃烧室对比试验分析

通过TY1100柴油机直口ω形燃烧室和缩口ω形燃烧室的对比试验、分析，表明：由于燃烧室的缩口，改变了直口ω形燃烧室的温度场与气流运动场；缩短了滞燃期，改善了预混燃烧，能降低发动机最高燃烧压力，减少压力升高率，抑制燃烧嗓声；并有优良的经济性和排烟洁净性。

Comparing Test and Analysis of Conventional and Re-entrant Combustion Chamber for TY1100 Diesel Engine

The comparing test results and analysis of conventional and re-entrant combustionchamber on TY1100 diesel engine have proved that comparing with conventional combustion chamber, the re-entrant combustion chamber is possessed of better economic efficiency and cleanersmoke emmission because of the improved temperature field and air-flow field, shortened ignitiondelay period, improved pre-mixing combustion, reduced max. combustion pressure, reduced pressure rise rate and lower combustion noise.