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Title:
ENGINE
Document Type and Number:
WIPO Patent Application WO/2019/177107
Kind Code:
A1
Abstract:
An engine 100 is provided with: a cylinder in which a cylinder liner is formed; a piston that is provided in the cylinder liner; a piston ring that is provided to the piston; a step that is formed in the inner peripheral surface of the cylinder liner; a contact detection unit 184 that detects contact with the piston ring; and a compression ratio control unit 182 that controls the top dead center position of the piston so as to position the piston ring at the top dead center position closer to a combustion chamber side than to the step.

Inventors:
MASUDA, Yutaka (1-1 Toyosu 3-chome, Koto-k, Tokyo 10, 〒1358710, JP)
UMEMOTO, Yoshiyuki (5292 Aioi, Aioi-sh, Hyogo 41, 〒6780041, JP)
KANEHIRA, Ryoichi (5292 Aioi, Aioi-sh, Hyogo 41, 〒6780041, JP)
Application Number:
JP2019/010587
Publication Date:
September 19, 2019
Filing Date:
March 14, 2019
Export Citation:
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Assignee:
IHI CORPORATION (1-1 Toyosu 3-chome, Koto-ku Tokyo, 10, 〒1358710, JP)
International Classes:
F02B75/04; F02B75/32; F02D15/02; F16J10/00
Foreign References:
JP2009115033A2009-05-28
JP2015190392A2015-11-02
JP2013068157A2013-04-18
JP2008190963A2008-08-21
JP2007247545A2007-09-27
Attorney, Agent or Firm:
AOMI PATENT (1-8-8, Kanda-ogawamachi Chiyoda-k, Tokyo 52, 〒1010052, JP)
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