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Patent Searching and Data


Title:
CHECK VALVE AND CENTRAL VALVE
Document Type and Number:
WIPO Patent Application WO/2022/016449
Kind Code:
A1
Abstract:
A central valve and a check valve (40) therein. The check valve (40) is arranged in a valve groove (21) of the central valve of a camshaft phase adjuster, so as to control a pressure medium to flow out from a first pressure chamber of the camshaft phase adjuster to a second pressure chamber through the valve groove (21), or to flow out from the second pressure chamber to the first pressure chamber through the valve groove (21), wherein the check valve comprises a main plate (42), a back plate (43) and two valve sheets (41); the valve sheets (41) are partially connected to the main plate (42), such that the valve sheets (41) can change the position relative to the main plate (42) under the pressure action of the pressure medium, thus having a closed state and a fully opened state; and the back plate (43) provides support for the valve sheets (41) when the valve sheets (41) are in the fully opened state.

Inventors:
LIU XIAONA (CN)
Application Number:
PCT/CN2020/103783
Publication Date:
January 27, 2022
Filing Date:
July 23, 2020
Export Citation:
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Assignee:
SCHAEFFLER TECHNOLOGIES AG (DE)
LIU XIAONA (CN)
International Classes:
F01L1/344; F16K11/07; F16K15/16
Foreign References:
CN110360347A2019-10-22
DE102012201561A12013-08-08
CN109854322A2019-06-07
DE102016104561A12017-09-14
DE102015200535A12016-07-21
DE102012201553A12013-08-08
CN210134981U2020-03-10
CN107503816A2017-12-22
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
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