Adjustment apparatus for changing the compression ratio in a combustion engine
US-2016195176-A1 · Jul 7, 2016 · US
Control device and control method for variable compression ratio internal combustion engines
US9476366B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9476366-B2 |
| Application number | US-201314421241-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 3, 2013 |
| Priority date | Aug 13, 2012 |
| Publication date | Oct 25, 2016 |
| Grant date | Oct 25, 2016 |
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Abstract
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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.
First claim
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The invention claimed is: 1. A control device for a variable-compression-ratio internal combustion engine, the control device comprising: a variable compression-ratio mechanism including a control shaft and link connected to a crankshaft of the internal combustion engine, the variable compression-ratio mechanism being configured to vary a compression ratio of the internal combustion engine in accordance with a rotational position of the control shaft; an actuator configured to d…
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- What does patent US9476366B2 cover?
- 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 ) accommo…
- Who is the assignee on this patent?
- Nissan Motor
- What technology area does this patent fall under?
- Primary CPC classification F02D15/00. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Oct 25 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).