Title:
船外機用エンジンの回転変動制御システム
Document Type and Number:
Japanese Patent JP4087686
Kind Code:
B2
Abstract:
An internal combustion engine comprising an engine body. A combustion chamber is formed in the engine body and has at least one valve seat. A valve is configured to move between an open position and a closed position of the valve seat. A valve actuator is configured to actuate the valve. A variable valve timing mechanism is configured to change an actuating timing of the valve actuator at which the valve actuator actuates the valve. At least one sensor configured to sense and operational condition of the engine. A control device is configured to determine if the engine is operating in a cruising mode. The control device is also configured to reduce engine speed fluctuations during the cruising mode by adjusting the actuating timing of the valve actuator.
Inventors:
Goichi Katayama
Application Number:
JP2002337999A
Publication Date:
May 21, 2008
Filing Date:
November 21, 2002
Export Citation:
Assignee:
Yamaha Marine Co., Ltd.
International Classes:
F02D13/02; F02D31/00; F02D41/02; F02D41/04; F02D41/14; F02B61/04
Domestic Patent References:
| JP2002242805A | ||||
| JP8074616A | ||||
| JP2001152929A | ||||
| JP10030482A |
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Shigeki Yamakawa