SCROLL COMPRESSOR

摘要

A scroll compressor is provided that may include a casing, an orbiting scroll and a non-orbiting scroll that suctions in a refrigerant from a suction space of the casing, compress the sectioned refrigerant in a plurally of compression chambers, and discharge the compressed refrigerant into a discharge space of the casing, and a capacity varying device having a first valve and at least one second valve coupled with each other inside of the casing to selectively bypass a portion of the refrigerant in the plurality of compression chambers. With this structure, it is possible to prevent, in advance, refrigerant from being leaked outside of the scroll compressor, reduce pressure loss as a bypass flow path is shortened, reduce a size, weight, and manufacturing costs of the scroll compressor, and vary a capacity of the scroll compressor with a small operating force, and small power consumption.

主权项

1. A scroll compressor, comprising;
a casing having a suction space; a non-orbiting scroll provided in the suction space of the casing; an orbiting scroll coupled to the non-orbiting scroll, the orbiting scroll forming, together with the non-orbiting scroll, a plurality of compression chambers; a first valve having a first input port that communicates with the plurality of compression chambers, a second input port that communicates with the suction space of the casing, and an output port that communicates with the first input port or the second input port, wherein the first valve is installed in the suction space of the casing; and at least one second valve having a cylinder, a piston that divides are internal space of the cylinder into a first space and a second space, the piston being movable in the internal space of the cylinder by the first valve, a first flow path by which the first space and the output port communicate with each other, a second flow path by which the second space and the plurality of compression chambers communicate with each other, and a third flow path by which the second space and the suction space of the casing communicate with each other when the piston moves toward the first space, wherein the at least one second valve is installed in the suction space of the casing.