Compression ratio control device and engine
US11053865B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Sep 15, 2020 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Sep 15, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/50
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.