Invention Grant
- Patent Title: Pressure holding transmission clutch with ball check valve
- Patent Title (中): 带止回阀的压力传感器离合器
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Application No.: US13625302Application Date: 2012-09-24
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Publication No.: US09249843B2Publication Date: 2016-02-02
- Inventor: Vural Ari
- Applicant: Schaeffler Technologies AG & 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: Simpson & Simpson, PLLC
- Main IPC: F16K1/14
- IPC: F16K1/14 ; F16K15/04 ; F16D25/12 ; F16D48/02 ; F16D48/06 ; F16D25/0638

Abstract:
A check valve assembly for a clutch, including: an annular-shaped ring element including a first portion with: a first channel wholly enclosed by the first portion; a first through-bore between a radially inner surface of the first portion and the first channel; and a second through-bore between a radially outer surface of the first portion and the first channel. The assembly includes a first pressure regulating assembly at least partially disposed within the first channel and including: a spool axially displaceable within the first channel and including a space enclosed by the spool; a first ball disposed within the space and the first channel; and a first spring engaged with the spool. The spool is arranged to axially displace in response to hydraulic pressure at the first through-bore and axial force applied by the first spring to displace the first ball to block or unblock flow between the first and second through-bores.
Public/Granted literature
- US20130075222A1 PRESSURE HOLDING TRANSMISSION CLUTCH WITH BALL CHECK VALVE Public/Granted day:2013-03-28
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