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:
Aug. 17, 2004
Filed:
Feb. 03, 2003
Applicant:
Inventors:
Waldemar Hebisch, Gross Gerau, DE;
Van Doan Nguyen, Neu Anspach, DE;
Assignee:
LuK Fahrzeug-Hydraulik GmbH & Co. KG, Bad Homburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 3/202 ;
U.S. Cl.
CPC ...
F16D 3/202 ;
Abstract
A power-steering pump for a motor vehicle is used to pump fluid to an additional fluid-driven device such as a hydraulic motor of a ventilation fan. The pump has a flow-regulating valve and an injector device, where a jet of excess fluid streaming off the flow-regulating valve generates a suction effect that pulls return fluid from a suction pipe or a reservoir tank into the intake area of the pump. A fluid stream returning from the additional fluid-driven device enters the intake area through one or more fluid return channels that are separate from the injector channel.