Title:
VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/224742
Kind Code:
A1
Abstract:
The rotor of a valve device (10) includes: a drive disk (22); and a lever (24) that is fixed to the drive disk and that rotatably joins the drive disk and a shaft in an integral manner and in a state such that the drive disk can be shifted in the axial direction of the shaft. In the valve device, a first torsion spring (28) is disposed between a housing and the shaft, and a second torsion spring (30) is disposed between the shaft and the lever. A driving unit of the valve device includes a motor (161) that, in a rotational driving range between an initial rotation position and a maximum rotation position, rotationally drives the shaft in a first rotation direction toward the initial rotation position and in a second rotation direction which is the opposite of the first rotation direction. The first torsion spring biases the shaft in the second rotation direction with respect to the housing in a state in which the shaft has been driven in the first rotation direction by the motor and is at the initial rotation position.
Inventors:
MIZUNUMA TAKEHITO (JP)
SANO RYO (JP)
SANO RYO (JP)
Application Number:
PCT/JP2022/015517
Publication Date:
October 27, 2022
Filing Date:
March 29, 2022
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F16K31/04
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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