Title:
内燃機関の可変サイクル装置
Document Type and Number:
Japanese Patent JP4365304
Kind Code:
B2
Abstract:
To improve fuel economy by reducing a pump loss by increasing an opening quantity of a throttle valve in a combustion cycle of many side.
This variable cycle type internal combustion engine has the throttle valve 41 for throttling an intake quantity in an intake pipe 8, and cycle changing mechanisms 28 and 29 capable of changing a combustion cycle. When the combustion cycle is changed to 8 cycles from 4 cycles by the cycle changing mechanisms, opening of the throttle valve is controlled so as to open larger than a case of 4-cycle operation, to thereby reduce the pump loss in an engine.
COPYRIGHT: (C)2006,JPO&NCIPI
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Inventors:
Seinosuke Hara
Application Number:
JP2004298298A
Publication Date:
November 18, 2009
Filing Date:
October 13, 2004
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F02D9/02; F02B69/06; F02D13/02; F02D41/02; F02D43/00
Domestic Patent References:
| JP3194136A | ||||
| JP2002322928A | ||||
| JP2004204745A | ||||
| JP2004076616A | ||||
| JP2000310120A | ||||
| JP3189354A | ||||
| JP64051737U |
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Hiromichi Kobayashi
Tomioka Kiyoshi
Hiromichi Kobayashi
Tomioka Kiyoshi