Title:
火花点火式内燃機関
Document Type and Number:
Japanese Patent JP4849188
Kind Code:
B2
Abstract:
In an internal combustion engine, a variable compression ratio mechanism (A) able to change a mechanical compression ratio and a variable valve timing mechanism (B) able to change a closing timing of an intake valve (7) are provided. When an amount of intake air supplied to a combustion chamber (5) is small, the closing timing of the intake valve (7) is held at a limit closing timing, and usually, when the amount of intake air supplied to the combustion chamber (5) increases by a certain extent, the action of advancing the closing timing of the intake valve (7) is started. As opposed to this, when the amount of intake air supplied to the combustion chamber (5) is small, if the rapid acceleration operation is performed, the action of advancing the closing timing of the intake valve (7) is started immediately.
Inventors:
Daisuke Akiku
Application Number:
JP2010503292A
Publication Date:
January 11, 2012
Filing Date:
June 15, 2009
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D41/10; F02D13/02; F02D15/02
Domestic Patent References:
| JP2008303773A | 2008-12-18 | |||
| JP2007303423A | 2007-11-22 |
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Yoryo Mihashi
Koichi Ito
Jun Tsuruta
Tetsuro Shimada
Shinji Mitsuhashi
Yoryo Mihashi
Koichi Ito