JP2012167578A5 - - Google Patents

Claims (4)

A cylinder having both ends in the axial direction and having a suction port that communicates with the low pressure side of the refrigeration cycle, a cylinder head and a frame that closes both ends of the cylinder in the axial direction, and rotational movement in the cylinder A rotor shaft having a cylindrical rotor portion that rotates and a shaft portion that transmits a rotational force to the rotor portion, and one or more vanes that are installed in the rotor portion and have a tip portion formed in an arc shape on the outside. And
The vane is held by the rotor portion so that the tip portion of the vane rotates along the inner peripheral surface of the cylinder while maintaining a predetermined gap with the inner peripheral surface of the cylinder,
The inner peripheral surface of the cylinder is formed with a notch portion that communicates with at least one of the one opening portion of the cylinder or the other opening portion of the cylinder and that opens the suction port. Vane type compressor. A cylinder having a substantially cylindrical shape and having an intake port that is open at both ends in the axial direction and communicates with the low pressure side of the refrigeration cycle;
A cylinder head that closes one opening of the cylinder and has a ring vane-shaped first vane aligner holding portion concentric with the cylinder inner peripheral surface on the cylinder side end surface;
A frame having a ring groove-shaped second vane aligner holding portion concentric with the cylinder inner peripheral surface on the cylinder side end surface, closing the other opening of the cylinder;
A cylindrical rotor portion that is closest and rotationally moved at one place on the inner peripheral surface of the cylinder; and a rotor shaft having a shaft portion that transmits a rotational force to the rotor portion;
A first vane aligner having a ring shape and rotatably fitted in the first vane aligner holding portion, and having a first vane holding portion;
A second vane aligner having a ring shape and rotatably fitted in the second vane aligner holding part, and having a second vane holding part;
One or more vanes provided on the rotor portion, fixed to the first vane holding portion or the second vane holding portion, and having a tip on the inner peripheral surface side of the cylinder having an arc shape;
A vane type comprising: a notch portion formed on an inner peripheral surface of the cylinder, communicating with at least one of the one opening portion and the other opening portion, and opening the suction port. Compressor. Wherein the intersection of the inner peripheral surface of the cylinder inner peripheral surface and the cutout portion, the rotor portion is formed on the closest point side on the inner circumferential surface closest to the cylinder, a portion of the axial direction of the cylinder da is the cylinder A first groove notched in a groove shape in the outer circumferential direction from the inner circumferential surface;
The intersection of the cut-out inner peripheral surface and the cylinder inner peripheral surface, the recently formed on the opposite side of the contact, cut a groove shape in the outer peripheral direction than a part of the cylinder inner peripheral surface of the axial direction of the cylinder da The vane type compressor according to claim 1 or 2, further comprising at least one of the missing second groove.   The vane type compressor according to any one of claims 1 to 3, wherein a refrigerant having a normal boiling point of -45 ° C or higher is used as the refrigerant.