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:
Oct. 18, 1988
Filed:
Jun. 19, 1987
Applicant:
Inventor:
Hermann Kruger, Wolfsburg, DE;
Assignee:
Volkswagen AG, Wolfsburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L / ; F16J / ; F16K / ; F16K / ;
U.S. Cl.
CPC ...
251174 ; 1231 / ; 251283 ; 277 71 ; 277 99 ;
Abstract
A profiled seal which is subjected to the influence of gas pressure forces in a pressure chamber associated with a rotary slide valve is provided with an enlargement, facing the slide valve, of its inner cross section in order to prevent an inadmissibly large increase of the contact pressure forces between the profiled seal and the slide valve, with an enlargement.