Vane compressor

A vane compressor comprising:

• a cylinder which is approximately cylindrical;
• a frame which closes one axial end of the cylinder;
• a cylinder head which closes an opposing axial end of the cylinder;
• a rotor shaft which includes a rotary shaft part supported by the frame and the cylinder head and being eccentric to a center of an inner peripheral surface of the cylinder, and a rotor part which rotates about the rotary shaft part in the cylinder;
• a vane which is installed in the rotor part, an outer periphery of a tip portion of the vane being curved in an arc shape;
• and
• a vane aligner attached to an end surface of at least one of the frame and the cylinder head on a side of the cylinder to rotate about an axis concentric with the inner periphery of the cylinder, the vane aligner supporting the vane such that the tip portion of the vane slides along the inner periphery of the cylinder along with rotation of the rotor part,
• wherein the tip portion of the vane moves in the cylinder along with rotation of the rotor part in a state where a normal to the outer periphery of the tip portion of the vane and a normal to an inner periphery of the cylinder are approximately coincident with each other.

A vane compressor comprising:

• a cylinder which is approximately cylindrical;
• a frame which closes one axial end of the cylinder;
• a cylinder head which closes an opposing axial end of the cylinder;
• a rotor shaft which includes a rotary shaft part supported by the frame and the cylinder head and being eccentric to a center of an inner peripheral surface of the cylinder, and a rotor part which rotates about the rotary shaft part in the cylinder;
• a vane which is installed in the rotor part, an outer periphery of a tip portion of the vane being curved in an arc shape;
• and
• a vane aligner attached to an end surface of at least one of the frame and the cylinder head on a side of the cylinder to rotate about an axis concentric with the inner periphery of the cylinder, the vane aligner supporting the vane such that the tip portion of the vane moves along the inner periphery of the cylinder along with rotation of the rotor part while maintaining a space between the tip portion of the vane and the inner periphery of the cylinder,
• wherein the tip portion of the vane moves in the cylinder along with rotation of the rotor part in a state where a normal to the outer periphery of the tip portion of the vane and a normal to an inner periphery of the cylinder are approximately coincident with each other.

A vane compressor comprising:

• a cylinder which is approximately cylindrical;
• a frame which closes one axial end of the cylinder;
• a cylinder head which closes an opposing axial end of the cylinder;
• a rotor shaft which includes a rotary shaft part supported by the frame and the cylinder head and being eccentric to a center of an inner peripheral surface of the cylinder, and a rotor part which rotates about the rotary shaft part in the cylinder;
• a vane which is installed in the rotor part, an outer periphery of a tip portion of the vane being curved in an arc shape;
• a bush supporting part penetrating axially that is formed in the rotor part;
• a pair of approximately semi-columnar bushes inserted in the bush supporting part to support the vane by sandwiching the vane;
• and
• a vane aligner attached to an end surface of at least one of the frame and the cylinder head on a side of the cylinder to rotate about an axis concentric with the inner periphery of the cylinder, the vane aligner supporting the vane such that the vane is rotatable about a central axis of the bush supporting part,
• wherein the tip portion of the vane moves in the cylinder along with rotation of the rotor part in a state where a normal to the outer periphery of the tip portion of the vane and a normal to an inner periphery of the cylinder are approximately coincident with each other.