Switchable cam follower of a valve train of an internal combustion engine
US8393308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2010 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | Nov 1, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2305/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A switchable cam follower of a valve train of a combustion engine, which has an external lever that encompasses an internal lever. The levers are pivotably moveable relative to one another at a valve-side end. The cam follower has a stop for a gas exchange valve on an underside on the valve-side end and a complementary face on the other end for a support element. The cam follower has a start face on an upper side for at least one high-lift cam. In one receptacle of the internal lever a coupling element is seated, which is displaceable longitudinally and can be brought into engagement in sections in case of coupling with a driving surface of the external lever. Also, at least one torsion is clamped between the two levers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.