Ball-lift device with screw for a variable compression ratio engine
US8439004B2 · kind B2 · utility
3Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2009 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Nov 9, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K11/105
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ball-lift device with screw for a variable compression ratio engine having a hydraulic double-acting control actuator (8) including an upper chamber (121) and a lower chamber (122) and at least one actuator piston (13) connected to a control rack (7) includes:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.