US 11,873,909 B2
Valve device
Rie Suzuki, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on May 3, 2022, as Appl. No. 17/735,441.
Application 17/735,441 is a continuation of application No. PCT/JP2020/038309, filed on Oct. 9, 2020.
Claims priority of application No. 2019-202524 (JP), filed on Nov. 7, 2019.
Prior Publication US 2022/0260163 A1, Aug. 18, 2022
Int. Cl. F16K 11/085 (2006.01); F16K 27/06 (2006.01); F16K 5/06 (2006.01); F16K 3/26 (2006.01); F16K 27/04 (2006.01); F16K 11/087 (2006.01); F16K 5/20 (2006.01)
CPC F16K 11/0856 (2013.01) [F16K 27/065 (2013.01); F16K 27/067 (2013.01); F16K 3/26 (2013.01); F16K 5/06 (2013.01); F16K 5/20 (2013.01); F16K 11/087 (2013.01); F16K 27/04 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A valve device configured to perform at least one of adjustment of a flow rate of fluid or switching of a flow path, the valve device comprising:
a case member having
a fluid inlet part configured to cause fluid to flow therethrough,
a fluid inflow part configured to cause the fluid, which flows into the fluid inlet part, to flow therethrough, and
a fluid outflow port configured to cause the fluid, which passes through the fluid inflow part, to flow therefrom;
a valve body having a valve outflow port configured to cause the fluid, which flows from the fluid inlet part, to flow therethrough and is rotational inside the case member;
a cylindrical sleeve slidably supported by an inner wall of the fluid inflow part and forming a flow path configured to guide the fluid, which flows from the valve outflow port, to the fluid outflow port of the case member;
a spring surrounding an outer periphery of the sleeve and biasing the sleeve toward the valve body; and
a spring end support part formed on an end part in the case member, which is on an opposite side of the spring from the valve body, wherein
the spring end support part is configured to support an end part of the spring on a side opposite to the valve body in an axial direction and from an outside in a radial direction of the spring, wherein
the spring end support part includes a plurality of projections projecting from the end part in the case member, which is on the opposite side of the spring from the valve body in the axial direction, toward the valve body, and
the plurality of projections is located on an outside of the spring in a radial direction and surrounds an outer circumferential periphery of the spring, and the plurality of projections overlaps in position with the spring in an axial direction of the spring.