Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
VARIABLE COMPRESSION DEVICE AND ENGINE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/103085
Kind Code:
A1
Abstract:
This variable compression device includes: a piston rod (6); and a fluid chamber (R3) in which, as a result of a boosted working-fluid being supplied to the inside thereof, the piston rod (6) is caused to move in the direction of increasing the compression ratio. A grooved flowpath (R6) is formed in the bottom surface of the fluid chamber (R3) or a contact surface of the piston rod (6) that contacts the bottom surface of the fluid chamber (R3).

Inventors:
MASUDA Yutaka (1-1 Toyosu 3-chome, Koto-k, Tokyo 10, 〒1358710, JP)
HIROSE Takayuki (1-1 Toyosu 3-chome, Koto-k, Tokyo 10, 〒1358710, JP)
YAMADA Takayuki (1-1 Toyosu 3-chome, Koto-k, Tokyo 10, 〒1358710, JP)
NAKAJIMA Hayato (1-1 Toyosu 3-chome, Koto-k, Tokyo 10, 〒1358710, JP)
Application Number:
JP2018/043126
Publication Date:
May 31, 2019
Filing Date:
November 22, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
IHI CORPORATION (1-1 Toyosu 3-chome, Koto-ku Tokyo, 10, 〒1358710, JP)
International Classes:
F02B75/32; F01B31/14; F02B75/04; F02D15/02; F16C7/06; F16J7/00
Domestic Patent References:
WO2015108178A12015-07-23
Foreign References:
JPH07197910A1995-08-01
DE102015203387A12016-08-25
JP2004044512A2004-02-12
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
Download PDF: