Patent ID: 9022757
Filing Date: 2015-05-05
Classification: F04C

Abstract:
1. A compressor, comprising: a shell having a sealed internal space; a stator installed in an internal space of the shell; a rotor rotatably provided with respect to the stator; a cylinder coupled with the rotor to be rotated with the rotor, the cylinder having a rotational center, a top, and a bottom; a plurality of bearings that cover the top and the bottom of the cylinder to form a compression space together with the cylinder and coupled with the cylinder to be rotated together with the cylinder; a stationary shaft fixed in the internal space of the shell, a shaft center of the stationary shaft being coaxial to the rotational center of the cylinder, and an eccentric portion of the stationary shaft varying a volume of the compression space during rotation of the cylinder while supporting the plurality of bearings in an axial direction of the plurality of bearings; a refrigerant suction passage that guides refrigerant into the compression space; a rolling vane coupled with the cylinder and configured to slide with respect to the eccentric portion while being rotated together with the cylinder to compress a refrigerant, wherein the rolling vane divides the compression space into a suction chamber and a discharge chamber; an accumulator having an accumulator chamber formed by an accumulator frame coupled with the shell, the accumulator frame being sealed with respect to the shell to air-tightly separate the accumulator chamber from the internal space of the shell; and a suction pipe that communicates with the accumulator chamber, wherein an end of the refrigerant suction passage of the stationary shaft is inserted into and coupled with the accumulator, such that the refrigerant suction passage of the stationary shaft communicates with the accumulator chamber, wherein an inlet end of the stationary shaft is positioned higher than a bottom surface of the accumulator chamber, and wherein a shaft center of the suction pipe is disposed so as not to be aligned with an axial center of the stationary shaft.