Switching valve

A switching valve comprising:

• a housing provided with a seating surface and a plurality of ports;
• a valve body provided to be rotatable with respect to the housing;
• and configured for coming into contact with the seating surface of the housing and selectively communicating at least two ports of the plurality of ports of the housing;
• and
• a rotary driving device configured to rotate the valve body,
• wherein the rotary driving device includes a rotating shaft, a rotor fixed to the rotating shaft, a rotor casing having the rotor housed therein, and a stator having a coil and disposed on an outer periphery of the rotor casing,
• both end portions of the rotating shaft are journaled,
• the valve body is disposed to be axially movable together with the rotating shaft,
• a fluid pressure is applied to a back surface of the valve body, and
• the switching valve further comprises a biasing member disposed between the housing and the valve body and configured for biasing the valve body in a direction in which the valve body is moved away from the seating surface of the housing, and
• the switching valve further comprises an annular thin plate disposed between the valve body and the biasing member and a coiled wave spring provided around the rotating shaft as the biasing member and configured to bias the valve member through the annular thin plate in the axial direction.