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:
May. 14, 2002
Filed:
Apr. 25, 2000
Applicant:
Inventors:
Egon Eisenbacher, Karlstadt, DE;
Manfred Unsöld, Rechtenbach, DE;
Assignee:
Hydraulik-Ring GmbH, Limbach-Oberfrohna, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 5/900 ; F16H 6/100 ; F16H 6/300 ;
U.S. Cl.
CPC ...
F16H 5/900 ; F16H 6/100 ; F16H 6/300 ;
Abstract
A pressure medium supply arrangement for a CVT transmission has a pump that supplies pressure medium to control cylinders of the CVT transmission in order to change a gear ratio of the CVT transmission. The pump has a high pressure side and a low pressure side. The pump further has a bypass channel connecting the high pressure side and the low pressure side. An electrically controlled control valve arrangement is connected to the pump for opening and closing the bypass channel in order to adjust a conveyed flow of the pump.