| 摘要 |
A variable capacity rotary compressor is provided to control compression or idling operation of a second compression chamber when a first compression chamber is in compression operation by back and forth motion of a third vane, thereby expanding a variable range of the compression capacity and varying the compression capacity continuously. A variable capacity rotary compressor includes a housing having first and second compression chambers(31,32), respectively mounted with first and second rollers(42,52). A first vane(43) defines the first compression chamber by moving in the radial direction of the first roller. Second and third vanes(53,54) define the second compression chamber by moving in the radial direction of the second roller, wherein the second and third vanes are slidable with respect to each other. A vane controller(70) restrains the third vane or releases the restraining for controlling compression capacity. The vane controller has a cylinder(71) mounted in the housing around the third vane, a piston(72) reciprocating in the cylinder and connected to the third vane, first to third paths(73-75), and a path varying valve(76) positioned in connection with the first to third paths.
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