Switching valve and respective manufacturing method
US7637278B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2007 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Dec 27, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0525
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a switching valve (1) for controlling a gas flow in a gas line of an internal combustion engine, in particular in a motor vehicle, comprising a line section (2) for installation in the gas line, an actuator drive (3) for rotational adjustment of a butterfly valve (11) about an axis of rotation (13) running across the direction of flow inside the line section (2). In the closed position of the butterfly valve (11) a throttle sealing gap (17) is formed radially between a butterfly valve edge (16) and a sealing surface (14) facing the butterfly valve (11) and belonging to a sealing section encompassing the butterfly valve (11) along the butterfly valve edge (16) in the circumferential direction.To simplify the manufacture of a high quality throttle sealing gap (17), the sealing section may be formed by a sealing body (15) which is manufactured separately from the other line section (2) and can be added directly onto the line section (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.