Valve drive having a rocker arm
US6550438B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2001 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Aug 31, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L1/462
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve drive mechanism is provided that has a rocker arm that by means of a swivel joint is movable about a pivot axis that extends transverse to the rocker arm. A control unit serves to actuate one end of the rocker arm, the other end of which actuates a poppet valve. A guide element, which is disposed between the end of the valve stem of the poppet valve and the other end of the rocker arm, serves to secure the position of the other end of the rocker arm relative to the valve stem end. The guide element is separate from the rocker arm and valve stem, and the other end of the rocker arm comes to rest between abutment surfaces of the guide element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.