Application of a Multi-Cylinder Natural Gas PCCI Engine with Spark Ignition to Generator Graduate School of The University of Shiga Prefecture, Yanmar Company, Limited

Format:

Conference/Event

Author/Creator:

Ohtsubo, Hiroyuki, author.

Conference Name:

SAE World Congress & Exhibition (2008-04-14 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2008

Summary:

In this study, it was attempted to operate the 4-cycle multi cylinder natural gas engine introduced PCCI combustion system without electric heater for intake air heating. In experiment, by optimization of the compression ratio and in addition to the control of spark ignition timing, the engine could be operated using only intake air heating with coolant water. The results showed that the suppression of the auto-ignition timing variations among cylinders owing to the independent spark timing control of each cylinder leads to the improvement of engine output, fuel economy and exhaust emissions. Furthermore, this paper describes the engine starting and corresponding change of engine load on electric demand on generator. The stable operation could be achieved by using spark ignition, controlling of excess air ratio and intake air temperature during change the engine load from idle to rated power. Those controls made an adaptation to the rapid change of the engine load with changing combustion modes by using intake air heating with coolant water instead of the electric heater

Notes:

Vendor supplied data

Publisher Number:

2008-01-0015

Access Restriction:

Restricted for use by site license