Patent ID: 9671376
Date: 2017-06-06
CPC Classifications: F16K,G01N,Y10T

Claim:
1. A flow path switching valve comprising: a base forming a lower portion of a housing, the base having a thread provided at an upper portion of an outer circumferential surface and in a circumferential direction; a stator forming an upper portion of the housing, the stator including a plurality of ports for connecting flow paths at an upper surface, the ports being open to a surface that is an upper flat surface inside the housing; a rotor, accommodated inside the housing, having a flat surface that is in contact with the upper flat surface inside the housing, the rotor being provided with a switching groove, at the flat surface, that is a flow path for communicating the plurality of ports of the stator; a rotor rotating mechanism for holding the rotor and rotating the rotor; an elastic member, inserted between the base and the rotor in a compressed manner, for biasing the rotor toward the upper flat surface inside the housing by an elastic force; and a stator position adjustment member that is a ring-shaped member provided with a thread, at a lower portion of an inner circumferential surface, that is to be screwed with the thread provided at the outer circumferential surface of the base, the stator position adjustment member being for joining the base and the stator by being attached to the outer circumferential surface of the base, for adjusting pressure force of the rotor against the stator, and for relatively raising or lowering the stator with respect to the base by rotation.