Variable compression ratio engine with mechanical locking pin
US10677157B2 · kind B2 · utility
2Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2018 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Dec 6, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/101
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for a VCR engine. In one example, the VCR engine includes a VCR mechanism that relies on electric power to adjust a compression ratio of the VCR engine. The compression ratio is maintained by hydraulically-assisted engagement of a mechanical locking pin with an S-link of the VCR mechanism, holding a position of the VCR mechanism while an electric motor, used to adjust a position of the S-link, may be deactivated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.