Patent ID: 9683763
Date: 2017-06-20
CPC Classifications: F25B

Claim:
1. A compressor configured to compress gas returned from a refrigerator and supply the gas to the refrigerator, comprising: a heat exchanger configured to discharge heat generated during compression outside the compressor; a cooling liquid inlet port through which cooling liquid flowing from outside the compressor into the compressor passes; a cooling liquid outlet port through which the cooling liquid flowing out of the compressor from inside the compressor passes; a first pipe configured to couple the cooling liquid inlet port to a cooling liquid receiving port of the heat exchanger; a second pipe configured to couple the cooling liquid outlet port to a cooling liquid discharge port of the heat exchanger; a first valve mounted in the first pipe and configured to regulate a flow of the cooling liquid through the first pipe; a second valve mounted in the second pipe and configured to regulate a flow of the cooling liquid through the second pipe; a third pipe configured to couple a port of the first valve toward the cooling liquid inlet port to a port of the second valve toward the cooling liquid discharge port; a fourth pipe configured to couple a port of the first valve toward the cooling liquid receiving port to a port of the second valve toward the cooling liquid outlet port; a third valve mounted in the third pipe and configured to regulate a flow of the cooling liquid through the third pipe; and a fourth valve mounted in the fourth pipe and configured to regulate a flow of the cooling liquid through the fourth pipe, wherein the compressor is configured such that an operation mode is switchable between a first mode in which the cooling liquid passing through the cooling liquid inlet port flows in the heat exchanger in a predetermined first direction and passes through the cooling liquid outlet port, and a second mode in which the cooling liquid passing through the cooling liquid inlet port flows in the heat exchanger in a second direction opposite to the first direction and passes through the cooling liquid outlet port, in the first mode, the first valve and the second valve allow passage of the cooling liquid and the third valve and the fourth valve restrict a flow of the cooling liquid, and, in the second mode, the third valve and the fourth valve allow passage of the cooling liquid and the first valve and the second valve restrict a flow of the cooling liquid.