Compression release brake with hydraulically adjustable timing
US5645031A · kind A · utility
Inventor
Key dates
| Filing date | Jan 18, 1996 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Jan 18, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L13/065
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pressure release brake for an internal combustion engine includes a master hydraulic actuator and a slave hydraulic actuator. The slave hydraulic actuator is operatively connected to the exhaust valve opening mechanism of one exhaust valve. The master hydraulic actuator is movable by an engine component to increase hydraulic pressure which moves the slave hydraulic actuator and opens the one exhaust valve near top dead center of compression strokes when the brake is operational. There is a lash adjusting mechanism for the slave hydraulic actuator. The lash adjusting mechanism includes a device for adjusting hydraulic pressure acting on the slave hydraulic actuator during exhaust strokes and thereby lash between the slave hydraulic actuator and the exhaust valve opening mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.