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:
Sep. 18, 2001
Filed:
Jul. 27, 1999
Applicant:
Inventors:
Assignee:
Mannesmann Rexroth AG, Lohr/Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 1/300 ;
U.S. Cl.
CPC ...
F15B 1/300 ;
Abstract
The invention concerns a hydraulic control circuit in which the pressure medium conveyed by a hydraulic pump of variable delivery (,) is fed, in each case via a metering aperture (,), as a priority to a first hydraulic consumer (,) and only secondly to a second hydraulic consumer (,). A priority control system is now produced without additional delivery losses and with sufficient amounts of pressure medium being conveyed in that the valve member (,) of the priority valve (,) can be acted upon in the closure direction of the connection between the first connection (,) and the second connection (,) by a pressure prevailing in a line section (,) upstream of the first metering aperture (,).