Invention Grant
- Patent Title: Compression ratio control device and engine
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Application No.: US17021101Application Date: 2020-09-15
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Publication No.: US11053865B2Publication Date: 2021-07-06
- Inventor: Yutaka Masuda , Yoshiyuki Umemoto , Takahiro Takimoto , Jun Teramoto , Kazuki Yotsui , Keitoku Iguchi
- Applicant: IHI Corporation
- Applicant Address: JP Tokyo
- Assignee: IHI Corporation
- Current Assignee: IHI Corporation
- Current Assignee Address: JP Tokyo
- Agency: Rothwell, Figg, Ernst & Manbeck, P.C.
- Priority: JPJP2018-063299 20180328
- Main IPC: F02B75/04
- IPC: F02B75/04 ; F02D15/02 ; B63H3/00 ; F02B61/04

Abstract:
A compression ratio control device includes a compression ratio controller configured to control a compression ratio of a combustion chamber so that the maximum combustion pressure approaches a combustion pressure upper limit value (cylinder-internal-pressure upper limit value) based on a detection signal of a detector at least when an engine load is equal to or less than a predetermined load (engine full load).
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