Valve train arrangement for multi-valve engine
US4791893A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1987 |
| Grant date | Dec 20, 1988 |
| Priority date | — |
| Expiry date | Jul 9, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L1/185
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A two-fingered cam follower adapted to operate two valves in unison has sliding faces which are arranged in parallel with the plane in which the cam follower swings being driven by a cam. The cam follower is pivotally mounted on a hydraulic lash adjuster which is in turn mounted on a cylinder head. The cylinder head is provided with a pair of guide arms which are arranged so as to interpose therebetween the cam follower. The guide arms have on the inboard sides thereof guiding faces respectively matched with the sliding faces of the cam follower in such a manner that a clearance is provided between the matched sliding and guiding faces. By setting the clearance in such a manner as to satisfy a certain relation, the sliding and guiding faces can be held out of contact with each other during normal operating condition of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.