Title:
火花点火式内燃機関
Document Type and Number:
Japanese Patent JP5196033
Kind Code:
B2
Abstract:
An internal combustion engine which is provided with a variable compression ratio mechanism able to change a mechanical compression ratio and a variable valve timing mechanism able to control a closing timing of an intake valve. The expansion ratio is made higher at the time of engine low load operation compared with at the time of engine high load operation. A fuel containing alcohol is used as the fuel, and the expansion ratio at the time of engine low load operation is made to fall when an alcohol concentration in the fuel is high compared with when the alcohol concentration in the fuel is low.
Inventors:
Daisuke Akiku
Application Number:
JP2011545043A
Publication Date:
May 15, 2013
Filing Date:
December 09, 2009
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D19/06; F02D13/02; F02D15/04
Domestic Patent References:
| JP2008232008A | 2008-10-02 | |||
| JP2009115063A | 2009-05-28 | |||
| JP2008208794A | 2008-09-11 | |||
| JP2008128227A | 2008-06-05 | |||
| JP2008175127A | 2008-07-31 | |||
| JP2009047071A | 2009-03-05 | |||
| JP2009275573A | 2009-11-26 | |||
| JP2008121592A | 2008-05-29 | |||
| JPS61164037A | 1986-07-24 | |||
| JP2008111375A | 2008-05-15 |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Koichi Ito
Tatsuki Sone
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Koichi Ito
Tatsuki Sone