Patent ID: 11940057
Assignee: DENSO CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC F

Claim 0:
1. A valve device comprising:
a housing including a flow path in which a fluid flows;
a flow path formation member provided with at least one flow path hole through which the fluid in the flow path passes;
a drive part configured to output a rotational force;
a shaft configured to be rotatable about a predetermined axis by the rotational force output from the drive part;
a rotor having a sliding surface that slides while facing an opening surface of the flow path formation member where the flow path hole is opened, the rotor being configured to increase or decrease an opening degree of the flow path hole with rotation of the shaft;
a spring configured to energize the rotor toward the flow path formation member; and
a coupling member configured to tiltably couple the shaft to the rotor, and to hold a contact state between the sliding surface and the opening surface regardless of a position of the shaft,
the rotor, the flow path formation member, the shaft and the spring are located in the flow path of the houseing,
the shaft has a first end portion to which the rotational force is transmitted from the drive part, and a second end portion opposite to the first end portion in an axial direction, and
the spring extends in the axial direction from the coupling member to the first end portion of the shaft.