发明名称 |
CONTROL DEVICE AND CONTROL METHOD FOR VARIABLE COMPRESSION RATIO INTERNAL COMBUSTION ENGINES |
摘要 |
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. |
申请公布号 |
EP2884077(A1) |
申请公布日期 |
2015.06.17 |
申请号 |
EP20130879443 |
申请日期 |
2013.06.03 |
申请人 |
NISSAN MOTOR CO., LTD |
发明人 |
TANAKA, YOSHIAKI;HIYOSHI, RYOSUKE;TAKAGI, YUSUKE;NAKAMURA, KATSUTOSHI |
分类号 |
F02D15/02;F01M9/06;F01M11/12;F02B75/04;F02B75/32;F02D45/00 |
主分类号 |
F02D15/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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