Engine valve train module
US4721074A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1986 |
| Grant date | Jan 26, 1988 |
| Priority date | — |
| Expiry date | Dec 12, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S123/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve train module used to effect operation of both the intake valve and the exhaust valve for a cylinder of an internal combustion engine includes a housing adapted to be secured to the cylinder head of the engine, the housing supporting a single engine driven camshaft having both intake and exhaust cam lobes thereon. In a preferred embodiment a direct acting hydraulic lash adjuster journaled in the housing is used to effect operation of the intake valve by the intake cam lobe while operation of the exhaust valve is by a rocker arm pivotally supported on a rocker shaft fixed to the housing and by a roller follower reciprocably journaled in the housing so as to operatively interconnect the exhaust cam lobe to one end of the rocker arm, the opposite end of the rocker arm having a hydraulic lash adjuster operatively positioned therein and operatively connected to the exhaust valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.