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. 27, 2025
Filed:
May. 13, 2024
Danfoss Power Solutions Aps, Nordborg, DK;
DANFOSS POWER SOLUTIONS APS, Nordborg, DK;
Abstract
A hydraulic arrangement () including a supply port (P), a return port (T), a working port arrangement (L, R), and a valve () controlling a supply of hydraulic fluid from the supply port (P) to the working port arrangement (L, R), wherein the valve () includes a housing () and a spool () movable in lengthwise direction in the housing () and forming together with the housing () at least one flow path the resistance of which depends on the position of the spool () in the housing (), and the spool () is actuated by a hydraulic pilot pressure () in a pressure chamber (). In such a hydraulic arrangement a safety functionality should be achieved in a simple way. To this end the housing () includes a pilot pressure relief port () connected to the return port (T) via a shut-off valve () and the spool () after a predetermined stroke () opens a connection between the pressure chamber () and the pilot pressure relief port ().