US 11,873,753 B2
Valve device and fluid circulation circuit
Akira Higuchi, Kariya (JP); Takehito Mizunuma, Kariya (JP); and Ryou Sano, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Mar. 4, 2022, as Appl. No. 17/686,786.
Application 17/686,786 is a continuation of application No. PCT/JP2020/030380, filed on Aug. 7, 2020.
Claims priority of application No. 2019-164850 (JP), filed on Sep. 10, 2019.
Prior Publication US 2022/0186657 A1, Jun. 16, 2022
Int. Cl. F16K 11/074 (2006.01); F01P 7/16 (2006.01); F25B 41/42 (2021.01); F16K 3/08 (2006.01); F16K 27/04 (2006.01)
CPC F01P 7/16 (2013.01) [F16K 3/08 (2013.01); F16K 11/074 (2013.01); F25B 41/42 (2021.01); F16K 11/0743 (2013.01); F16K 27/045 (2013.01); F16K 27/047 (2013.01); Y10T 137/86533 (2015.04)] 15 Claims
OG exemplary drawing
 
1. A valve device comprising:
a housing integrally or separately having a flow path formation part where at least one flow path hole through which a fluid passes is formed;
a drive part that outputs a rotational force; and
a rotation part that rotates about a predetermined axis by the rotational force output from the drive part, wherein
the rotation part includes
a shaft, and
a rotor having a sliding surface that slides while facing an opening surface of the flow path formation part where the flow path hole is opened, the rotor increasing or decreasing an opening degree of the flow path hole with rotation of the shaft,
at least a part of the rotation part is rotatably held by the housing,
the shaft has a one-end-side portion to which the rotational force is transmitted from the drive part and an other-end-side portion opposite to the one-end-side portion in an axial direction of the shaft,
at least a part of the other-end-side portion is rotatably held by the housing,
the rotation part includes an intermediate element that couples the rotor to the shaft such that a gap is formed between the other-end-side portion and the rotor,
the gap is formed between the other-end-side portion and the rotor in a radial direction of the shaft, and
the housing has an end reception part that receives at least a part of the other-end-side portion.