Engine braking apparatus with mechanical linkage and lash adjustment
US7789065B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jul 9, 2008 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Dec 31, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M26/01
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An apparatus for modifying engine valve lift to produce an engine valve event in an internal combustion engine comprises actuation device for operating at least one exhaust valve, and control device for moving the actuation device between its inoperative position and operative position. In the inoperative position, the actuation device is disengaged from the at least one exhaust valve, and in the operative position, the actuation device holds open the at least one exhaust valve to produce the modified engine valve lift for the engine valve event, which includes an engine braking event. The actuation device includes a motion limiting apparatus for controlling movement of the actuation device. The actuation device can be integrated into a valve bridge and other valve train components, such as a rocker arm, wherein a plunger is slidably disposed between the inoperative position and the operative position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.