This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Exhaust Control System for Motorcycle 4-Stroke Engines
Annotation ability available
Sector:
Language:
English
Abstract
Recent improvements of performance in 4-stroke motorcycle engines are remarkable. However, these improvements have come at the expense of idling stability and erratic performance in the low to medium range of engine speeds.
In order to solve these problems, a variable exhaust valve system has been developed. A valve, located at the end the exhaust passage area (sometimes refered to as the “collector”), varies its opening in order to control the pressure pulsation waves in the exhaust pipe, and is regulated as a function of engine speed. This system has already been adopted on some production motorcycles since April 1987.
Recommended Content
Authors
Citation
Yamabe, K. and Ueda, H., "Exhaust Control System for Motorcycle 4-Stroke Engines," SAE Technical Paper 880269, 1988, https://doi.org/10.4271/880269.Also In
References
- Internal Cumbustion Engine Handbook “Intake and exhaust in 4-stroke engine”
- HIRAKO, KOBAYASHI: Internal Combustion Engine Vol. 8 No. 90 November 1969
- HIRAKO, KOBAYASHI: Transactions of the JSME Vol. 35 No. 272 April 1969
- SHIMAMOTO, et al: Transactions of the JSME Vol. 43 No. 371 July 1977
- SHIMAMOTO, et al: Internal Combustion Engine Vol. 23 No. 295 August 1984
- SHIMAMOTO: Internal Combustion Engine Vol. 10 No. 111 June 1971