Rotary valve and method for forming reinforced resin member of rotary valve

A rotary valve, comprising:

• a stator;
• a rotor shaft that rotates on its axis;
• and
• a rotor that is held at a tip of the rotor shaft and rotates together with the rotor shaft while in surface contact with the stator,
• wherein the stator is composed of a resin, and at least a sliding surface of the rotor that contacts the stator is formed of a material harder than the stator.

A rotary valve, comprising:

• a stator;
• a rotor shaft that rotates on its axis;
• and
• a rotor that is held at a tip of the rotor shaft and rotates together with the rotor shaft while in surface contact with the stator,
• wherein a substantially spherical portion, which is a part of either the rotor or the rotor shaft, is provided between the rotor and the rotor shaft, and the rotor and the rotor shaft are in direct contact at the substantially spherical portion, whereby the sliding surface of the rotor is capable of tilting from a state perpendicular to a rotation axis of the rotor shaft.