Title:
VARIABLE COMPRESSION RATIO INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2016/009468
Kind Code:
A1
Abstract:
A variable compression ratio internal combustion engine includes a control shaft (13) rotatably supported by an engine main body, a variable compression ratio mechanism (10) capable of changing an engine compression ratio in accordance with a rotation position of the control shaft (13), an actuator (21) that rotationally drives the control shaft (13), and a deceleration mechanism (22) that decelerates rotation power of the actuator (21) and transmits the power to the control shaft (13). The deceleration mechanism (22) has a rotation shaft (24) rotatably supported in a housing (26) fixed to the engine main body and a lever (25) connecting the rotation shaft (24) and the control shaft (13) with each other. The engine main body is fitted with a first regulation unit (42) which mechanically regulates the control shaft (13) to a position of maximum rotation to one of a low compression ratio side and a high compression ratio side. The housing (26) is fitted with a second regulation unit (41) which mechanically regulates the rotation shaft (24) to a position of maximum rotation to the other of the low compression ratio side and the high compression ratio side.
Inventors:
HIYOSHI RYOSUKE (JP)
TANAKA YOSHIAKI (JP)
TANAKA YOSHIAKI (JP)
Application Number:
PCT/JP2014/068659
Publication Date:
January 21, 2016
Filing Date:
July 14, 2014
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
F02B75/32; F02B75/04; F02D15/02
Domestic Patent References:
| WO2013080673A1 | 2013-06-06 |
Foreign References:
| JP2011169152A | 2011-09-01 | |||
| JP2006226133A | 2006-08-31 | |||
| JP2009185629A | 2009-08-20 | |||
| JP2004150286A | 2004-05-27 |
Other References:
See also references of EP 3171001A4
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
Hiromichi Kobayashi (JP)
Hiromichi Kobayashi (JP)
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