Invention Grant
- Patent Title: Valve unit with axial pressure medium unit
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Application No.: US14407533Application Date: 2013-04-04
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Publication No.: US09719605B2Publication Date: 2017-08-01
- Inventor: Christoph Ross , Alexander Backer , Josef Groschel
- Applicant: GSchaeffler Technologies GmbH & Co. KG
- Applicant Address: DE Herzogenaurach
- Assignee: Schaeffler Technologies AG & Co. KG
- Current Assignee: Schaeffler Technologies AG & Co. KG
- Current Assignee Address: DE Herzogenaurach
- Agency: Volpe and Koenig, P.C.
- Priority: DE102012209859 20120613
- International Application: PCT/EP2013/057056 WO 20130404
- International Announcement: WO2013/185943 WO 20131219
- Main IPC: F16K15/02
- IPC: F16K15/02 ; F16K15/06 ; F01L1/344

Abstract:
A valve element for a hydraulic control device, in particular valve sleeve (1) or valve housing for a control valve on internal combustion engines or transmissions of motor vehicles, wherein the valve element has a displaceable control piston (2) which is subjected to load on one side by a spring (3) which is supported on a spring support (4) which is fixed to the valve element. The spring support (4) has at least one opening (7) which is connected to a pressure medium line, and the pressure medium line is in the form of a pressure medium inlet line. An axial filter (8) is arranged at the opening (7) of the spring support (4) and/or the opening (7) of the spring support (4) is provided with a check valve (9).
Public/Granted literature
- US20150184765A1 VALVE UNIT WITH AXIAL PRESSURE MEDIUM UNIT Public/Granted day:2015-07-02
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