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:
Dec. 31, 2002
Filed:
Sep. 11, 2001
Siegfried Zenker, Kirchseeon, DE;
Thorkild Christensen, Sønderborg, DK;
Carl Christian Dixen, Sydals, DK;
Carsten Christensen, Broager, DK;
Sauer-Danfoss (Nordborg) A/S, Nordborg, DK;
Abstract
A hydraulic valve arrangement includes a control valve ( ), which, in a first operating position ( ), connects a motor connection ( ) with a pump connection, in a second operating position ( ), connects a motor connection with a tank connection, and, in a locking position ( ), disconnects the motor connection ( ) from the pump and tank connection. A locking valve ( ) is coupled between the control valve ( ) and the motor connection ( ), dividing the motor line ( ) into a first section ( ) allocated to the control valve ( ) and a second section ( ) allocated to the motor connection ( ). For the locking valve ( ), a pressure release valve ( ) in the shape of a seated valve is provided that is fixed to the housing thereby improving control accuracy.