The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 29, 2009
Filed:
Feb. 21, 2007
Alfred Elsässer, Keltern, DE;
Alfred Elsässer, Keltern, DE;
Mahle International GmbH, Stuttgart, DE;
Abstract
The present invention relates to a switching valve () for controlling a gas flow in a gas line of an internal combustion engine, in particular in a motor vehicle, comprising a line section () for installation in the gas line, an actuator drive () for rotational adjustment of a butterfly valve () about an axis of rotation () running across the direction of flow inside the line section (). In the closed position of the butterfly valve () a throttle sealing gap () is formed radially between a butterfly valve edge () and a sealing surface () facing the butterfly valve () and belonging to a sealing section encompassing the butterfly valve () along the butterfly valve edge () in the circumferential direction. To simplify the manufacture of a high quality throttle sealing gap (), the sealing section may be formed by a sealing body () which is manufactured separately from the other line section () and can be added directly onto the line section ().