Title:
FLUID CONTROL VALVE, AND VALVE TIMING ADJUSTING DEVICE EMPLOYING SAME
Document Type and Number:
WIPO Patent Application WO/2020/032018
Kind Code:
A1
Abstract:
A check valve (81) comprising an annular resilient body and provided in an annular flow passage portion (Rri) opens by expanding diametrically and moving away from a valve seat surface (55), permitting the flow of operating oil from a valve seat flow passage portion (Ore) side to the annular flow passage portion (Rri) side, and closes by contracting diametrically and coming into contact with the valve seat surface (55), restricting the flow of operating oil from the annular flow passage portion (Rri) side to the valve seat flow passage portion (Ore) side. A displacement restricting portion (90) includes: a restricting portion main body (91) provided outside the check valve (81) in the annular flow passage portion (Rri) in such a way that displacement of the check valve (81) in the diametrically expanding direction can be restricted; and a restricting portion flow passage (92) providing communication between one side and the other side of the restricting portion main body (91), in the axial direction of an outer cylinder portion (40) and an inner cylinder portion (50), in such a way that the operating oil can circulate.
Inventors:
HAMADA TAKUYA (JP)
OTSUBO MAKOTO (JP)
MITSUTANI TETSURO (JP)
TAKAHASHI KINYA (JP)
OTSUBO MAKOTO (JP)
MITSUTANI TETSURO (JP)
TAKAHASHI KINYA (JP)
Application Number:
PCT/JP2019/030883
Publication Date:
February 13, 2020
Filing Date:
August 06, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F16K11/07; F01L1/356; F16K3/26; F16K15/14
Domestic Patent References:
| WO2018135586A1 | 2018-07-26 |
Attorney, Agent or Firm:
HATTORI Masaki (JP)
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