Universiti Teknologi Malaysia Institutional Repository

Valve train investigation for CNG engine application

Tawi, Kamarul Baharin and Yunus, Rohaizad and Talib@Charlie, Mohamad Husni (2003) Valve train investigation for CNG engine application. Jurnal Mekanikal, 15 . pp. 32-41. ISSN 0127-3396

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Abstract

Compressed natural gas (CNG) beyond doubt has better emission byproduct as compared to petrol for compression ignition engines [1]. For greener environment retrofitted or converted vehicle was introduced into the automotive market. This work investigates whether the valve overlap period affects the vehicle engine performance. From the study, it was found that for a single overhead camshaft engine, the valve overlap period does affect the engine performance. The results show that retrofitting the present vehicle without modifying the valve overlap period is not suitable for CNG. It reduces the engine performance by about 9% for part open throttle conditions as compared to petrol. The present overlap duration should be increased for better performance.Kamarul Baharin bin Tawi

Item Type:Article
Uncontrolled Keywords:Compressed natural gas (CNG), emission, valve
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:12483
Deposited By: Ms Zalinda Shuratman
Deposited On:07 Jun 2011 09:59
Last Modified:07 Jun 2011 09:59

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