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:
Feb. 25, 1986
Filed:
Nov. 28, 1983
Hans-Ulrich Vogler, Frankfurt am Main, DE;
Gerhard Ruschek, Hattersheim, DE;
Horst Schlick, Schwalbach, DE;
VDO Adolf Schindling AG, Frankfurt am Main, DE;
Abstract
A throttle valve 4 is pivotally mounted about a shaft 3 within a connection-piece housing of a throttle-valve connection piece. In order to reduce the air leakage rate, means are provided for eddying the leakage air which, when the throttle valve is closed, passes between it and the wall of the bore of the connection-piece housing. The connection-piece housing preferably has two bores which open into each other forming a crescent-shaped step, against which the throttle valve rests in the closed position and a reduction in cross section on one side in the bore of the connection-piece housing is provided by an arcuate transition to the bore of smaller diameter and the crescent-shaped step is located on the opposite side.