Compressor

A compressor comprising:

• a rotary shaft;
• a rotating body that is configured to rotate together with the rotary shaft and includes a rotating body surface, which intersects with an axial direction of the rotary shaft, and a vane groove and;
• a fixed body that is configured not to rotate together with the rotary shaft and includes a fixed body surface, which faces the rotating body surface in the axial direction;
• a vane that is inserted in the vane groove and configured to rotate together with the rotating body while moving in the axial direction;
• and
• a compression chamber that is defined by the rotating body surface and the fixed body surface and in which suction and compression of fluid is performed when the vane rotates while moving in the axial direction, wherein
• the vane has a vane end at an end in the axial direction, the vane end contacting the fixed body surface,
• the vane end is curved to be convex toward the fixed body surface and extends in a direction orthogonal to the axial direction,
• the fixed body surface includes
• a fixed body contact surface that contacts the rotating body surface, and
• two curved surfaces respectively provided on opposite sides of the fixed body contact surface in a circumferential direction of the rotary shaft, each curved surface being curved such that a distance to the rotating body surface increases as a distance to the fixed body contact surface increases, and
• each curved surface includes
• a convex surface continuous with the fixed body contact surface, the convex surface being curved to be convex toward the rotating body surface, and
• a concave surface continuous with the convex surface, the concave surface being curved to be concave with respect to the rotating body surface, wherein
• the convex surface includes a convex surface inner end and a convex surface outer end at opposite ends in a radial direction of the rotary shaft,
• a curvature in the axial direction of the convex surface inner end is greater than a curvature in the axial direction of the convex surface outer end,
• the concave surface includes a concave surface inner end and a concave surface outer end at opposite ends in the radial direction, and
• a curvature in the axial direction of the concave surface inner end is greater than a curvature in the axial direction of the concave surface outer end.