A CNG Two Stroke Cycle S.I. Engine Using Intermittent Low Pressure Fuel Injection from Scavenging Ports Dept of Mechanical Engineering, Gunma University Kiryu, Gunma, 376-8515 Japan

Format:

Conference/Event

Author/Creator:

ARAKI, Mikiya, author.

Conference Name:

Fifth International SAE India Mobility Conference on Emerging Automotive Technologies Global and Indian Perspective (2008-01-09 : New Delhi, India)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Pune, MH The Automotive Research Association of India 2008

Summary:

Performance of a CNG (Compressed natural gas) two stroke cycle Place of publication not identified engine using intermittent low pressure fuel injection from scavenging ports is investigated experimentally. The test engine is a two cylinder, 398 cm3, two stroke cycle spark ignition engine. Gaseous fuel injectors are attached at the engine block, and a CNG is injected into the scavenging passage through a fuel injection pipe. The fuel injection pressure is set at 0.255 MPa, and the fuel is injected intermittently during the scavenging process. The length and tip geometry of the fuel injection pipe are varied, and the effect on the engine performance is investigated. Using the scavenging port fuel injection, the BSFC is reduced by 25 %, and the lean burn limit extends from λ = 1.2 to 1.46, at the maximum. The peak of the NOx emission shifts to leaner side, and the THC emission is reduced by 47 % at the maximum. It is considered that the intermittent fuel injection from a scavenging port is effective to achieve stratified combustion and reduction in short-circuiting of fresh charge through the cylinder

Notes:

Vendor supplied data

Publisher Number:

2008-28-0004

Access Restriction:

Restricted for use by site license