US 12,135,095 B2
Valve device
Ryo Sano, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Mar. 27, 2023, as Appl. No. 18/190,514.
Application 18/190,514 is a continuation of application No. PCT/JP2021/033317, filed on Sep. 10, 2021.
Claims priority of application No. 2020-163935 (JP), filed on Sep. 29, 2020.
Prior Publication US 2023/0228335 A1, Jul. 20, 2023
Int. Cl. F16K 3/34 (2006.01); F16K 3/08 (2006.01); F16K 31/44 (2006.01)
CPC F16K 3/34 (2013.01) [F16K 3/08 (2013.01); F16K 31/44 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A valve device comprising:
a housing that forms a fluid passage at an inside of the housing, wherein the fluid passage is configured to conduct fluid through the housing;
a stationary disk that is shaped in a plate form and is fixed at the inside of the housing, wherein the stationary disk has at least one flow passage hole which is configured to conduct the fluid through the stationary disk;
a drive device that is configured to output a rotational force;
a shaft that is configured to be rotated about a central axis, which is predetermined, by the rotational force; and
a rotor that is configured to increase or decrease an opening degree of the at least one flow passage hole in response to rotation of the shaft, wherein:
the rotor includes:
a drive disk that is shaped in a plate form and is configured to slide relative to the stationary disk; and
a lever that is fixed to the drive disk and couples between the drive disk and the shaft to enable integral rotation of the drive disk and the shaft in a state where the drive disk is displaceable in an axial direction of the shaft;
a first torsion spring is placed between the housing and the shaft and is configured to urge the shaft relative to the housing in a circumferential direction around the central axis of the shaft; and
a second torsion spring is placed between the shaft and the lever and is configured to urge the lever relative to the shaft in the circumferential direction.