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:
Apr. 23, 2002
Filed:
May. 24, 1999
Applicant:
Inventor:
Martin Nitsche, Gerstetten, DE;
Assignee:
Voith Turbo GmbH & Co., KG, Heidenheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 1/3044 ;
U.S. Cl.
CPC ...
F15B 1/3044 ;
Abstract
A valve device includes a valve housing with at least one inlet channel and an outlet channel. A valve piston can be moved axially in the valve housing and has control edges for releasing and blocking the connection between the cross sections of the inlet and outlet channels. A regulating device applies the actuating force to the valve piston. Elements produce a force opposing the actuating force through at least a part (a proportional area) of the overall working range of the valve device, depending on the pressure in the outlet channel.