Study of Combustion Characteristics with Variations of Combustion Parameter in Ultra-Lean LPG Direct Injection Engine

Autor: Cheolwoong Park, Yong Gyu Lee, Taeyoung Kim, Young Deuk Choi, Seung Mook Oh, Yun Seo Park
Rok vydání: 2013
Předmět:
Zdroj: Transactions of the Korean Society of Mechanical Engineers B. 37:607-614
ISSN: 1226-4881
DOI: 10.3795/ksme-b.2013.37.6.607
Popis: Nowadays, automotive manufacturers have developed various technologies to improve fuel economy and reduce harmful emissions. The ultra-lean direct injection engine is a promising technology because it has the advantage of improving thermal efficiency through the deliberate control of fuel and ignition. This study aims to investigate the development of a spray-guided-type lean-burn LPG direct injection engine through the redesign of the combustion system. This engine uses a central-injection-type cylinder head in which the injector is installed adjacent to the spark plug. Fuel consumption and combustion stability were estimated depending on the ignition timing and injection timing at various air-fuel ratios. The optimal injection timing and ignition timing were based on the best fuel consumption and combustion stability.
Databáze: OpenAIRE