Title:
VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/070837
Kind Code:
A1
Abstract:
A valve device (10) comprises: a housing (12); and a plate-shaped fixed disk (14) in which one or more flow path holes (141, 142) are formed. The valve device further comprises: a drive unit (16) that outputs a rotation force; a shaft (18) that rotates about a prescribed axial center (CL) using the rotation force; and a rotor (20) that increases and reduces the degree of opening of the flow path holes according to the rotation of the shaft. The rotor includes a plate-shaped drive disk (22) that swings in relation to the fixed disk, and a lever (24) that is fixed to the drive disk and connects the drive disk and the shaft so as to be able to rotate in an integrated manner in a state in which the drive disk can be displaced in the axial center direction of the shaft. A first torsion spring (28) is positioned between the housing and the shaft and biases the shaft in the circumferential direction about the axial center of the shaft in relation to the housing, and a second torsion spring (30) is positioned between the shaft and the lever and biases the lever in the circumferential direction in relation to the shaft.
Inventors:
SANO RYO (JP)
Application Number:
PCT/JP2021/033317
Publication Date:
April 07, 2022
Filing Date:
September 10, 2021
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F16K3/08
Foreign References:
| CN205101604U | 2016-03-23 | |||
| CN208886017U | 2019-05-21 | |||
| JP2002257248A | 2002-09-11 |
Attorney, Agent or Firm:
YOU-I PATENT FIRM (JP)
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