US 12,228,130 B2 · Rotary compressor

Abstract

A rotary compressor provided that may include a casing, a cylinder, a roller, and at least one vane slidably inserted into the roller, and the roller may have at least one bypass passage through which spaces on both sides of a contact point based on a rotational direction of the roller communicate with each other. Through the at least one bypass passage, residual refrigerant remaining in a compression space even after a discharge stroke may be bypassed to a suction chamber, thereby minimizing the refrigerant remaining in the compression space after the discharge stroke. Also, loss due to overcompression in a residual space may be suppressed or prevented while reducing suction loss due to the introduction of overcompressed high-pressure refrigerant by the bypassing the refrigerant in the residual space toward a suction side in advance.

Claims19

Dependent claims

A rotary compressor, comprising:

a casing;
a cylinder that is disposed in an inner space of the casing to define a compression space;
a roller that is disposed on a rotational shaft to be rotatable in the inner space of the cylinder and eccentric with respect to a center of the compression space to have a contact point close to an inner circumferential surface of the cylinder;
and
at least one vane that is slidably inserted into at least one vane slot disposed in the roller, respectively, to be rotatable along with the roller,
wherein the roller includes at least one bypass passage through which spaces on both sides of the contact point based on a rotational direction of the roller periodically communicate with each other and;
wherein an angle between ends of the at least one bypass passage is smaller than or equal to an angle between a discharge completion point of the at least one vane and the contact point.

4 more elements

Dependencies are inferred from the claim text.

Rotary compressor

Life of this patent

Rotary compressor

Life of this patent

Abstract

Claims19