Title:
エンジンのアイドル回転数制御装置
Document Type and Number:
Japanese Patent JP4232925
Kind Code:
B2
Abstract:
An engine idle control system includes an improved construction for changing an aimed idle engine speed, which is preset by the manufacturer therein, in response to various needs of a user. The engine has a main passage having a throttle valve therein and a bypass passage arranged to bypass the throttle valve. The bypass passage supplies an idle air charge to a combustion chamber of the engine when the throttle valve is generally closed and has an adjusting valve therein for adjusting the idle air charge. A control device controls the adjusting valve to reduce a difference between an actual idle speed sensed by an engine speed sensor and an aimed idle speed preset in the control device. The control device includes means for changing the aimed idle speed.
Inventors:
Isao Kanno
Yoshikazu Nakayasu
Yoshikazu Nakayasu
Application Number:
JP11331099A
Publication Date:
March 04, 2009
Filing Date:
April 21, 1999
Export Citation:
Assignee:
Yamaha Marine Co., Ltd.
International Classes:
F02D29/02; F02D41/08; F02D31/00; F02M69/32; F02D41/18; F02D41/24
Domestic Patent References:
| JP11218046A | ||||
| JP62191642A |
Attorney, Agent or Firm:
Ryukichi Abe
Hirukawa Masanobu
Norihiko Uchida
Hirukawa Masanobu
Norihiko Uchida