Compression release engine brake unit
US8146566B2 · kind B2 · utility
8Cited by
9References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 16, 2009 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Jun 23, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2820/01
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compression release engine brake unit includes an oil outlet passage formed in a socket brake, which stores engine brake oil, and a reset member opening or closing the outlet passage. The reset member discharges the engine brake oil by opening the oil outlet passage in response to the rotation of a rocker arm during engine braking and, thereby, the engine brake restores the initial state. Since the compression release engine brake can restore the initial state, the return valve lift is the same as when the compression release engine brake is not actuated. Accordingly, the valve does not butt against an engine piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.