Title:
可変圧縮比内燃機関の制御装置及び制御方法
Document Type and Number:
Japanese Patent JP5720857
Kind Code:
B2
Abstract:
There are provided a variable compression-ratio mechanism (20) capable of varying an engine compression ratio in accordance with a rotational position of a control shaft (24); a speed reducer (44) configured to reduce in speed a rotational power of an actuator and transmit the speed-reduced rotational power to the control shaft (24); and a speed-reducer accommodating case (43) accommodating the speed reducer (44). An input shaft of the speed reducer (44) which is connected to the actuator has a shaft center line extending along a horizontal direction, and at least a part of the input shaft is kept under a lubricating oil retained in the speed-reducer accommodating case (43). The input shaft of the speed reducer (44) is swung by a predetermined swing angle to avoid inadequate lubrication of the input shaft of the speed reducer (44), during an operating state where the engine compression ratio is maintained constant.
Inventors:
Noriaki Tanaka
Ryosuke Hiyoshi
Yusuke Takagi
Nakamura Katsutoshi
Ryosuke Hiyoshi
Yusuke Takagi
Nakamura Katsutoshi
Application Number:
JP2014530487A
Publication Date:
May 20, 2015
Filing Date:
June 03, 2013
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02D15/02; F01M1/06; F01M9/10; F01M11/12; F02B75/04; F02B75/32; F02D41/04; F02D45/00; F02P5/15
Domestic Patent References:
| JP2011169152A | 2011-09-01 | |||
| JP2003129817A | 2003-05-08 | |||
| JP2010151088A | 2010-07-08 | |||
| JP2010112279A | 2010-05-20 |
Attorney, Agent or Firm:
Hiromichi Kobayashi
Tomioka Kiyoshi
Tomioka Kiyoshi