419 二輪車用可変吸排気コントロールシステム(応用システム)
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概要
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A variable intake and exhaust control valve system for the in-line four-cylinder motorcycle engine was developed for realization of high engine power in all the engine speed ranges. Both the variable intake and exhaust control valves are operated by one servomotor. An exhaust collector pipe design for merging of each exhaust gas flow is changed at each engine speed. Two modes are provided to the intake control, and three modes are provided to the exhaust control. High engine performance with optimum driveability was realized.
- 2001-09-07