Engine braking methods and apparatus
US7162996B2 · kind B2 · utility
18Cited by
12References
47Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Jan 16, 2007 |
| Priority date | — |
| Expiry date | Jun 2, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M26/13
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and apparatus for providing bleeder-type and compression-release engine braking in an internal combustion engine are disclosed. For bleeder-type engine braking, the exhaust valve is maintained at a small and relatively constant lift throughout all or much of the engine cycle. The engine braking may be combined with exhaust gas recirculation, variable exhaust brake, and/or operation of a variable geometry turbocharger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.