Patent ID: 9657968
Date: 2017-05-23
CPC Classifications: F25B,F28D

Claim:
1. A compressor apparatus for supplying a compressed refrigerant to a cryogenic refrigerator, comprising: a heat exchanger group that includes a first heat exchanger and a second heat exchanger whose heat exchanging amount is greater than the first heat exchanger; and an axial-flow fan that cools the heat exchanger group, wherein the first heat exchanger and the second heat exchanger are disposed side by side in a radial direction perpendicular to a rotational axis of the axial-flow fan, and the first heat exchanger is disposed closer to the rotational axis of the axial-flow fan in the radial direction with respect to the second heat exchanger, and the heat exchanger group extends straight from an inlet side to an outlet side, and the heat exchanger group is overlapped with the axial-flow fan when viewed in the rotational axis of the axial-flow fan, wherein compression of the refrigerant is performed in two stages, the heat exchanger group includes a higher stage side heat exchanger disposed on a higher stage side of the two stages, and a lower stage side heat exchanger disposed on a lower stage side, the lower stage side heat exchanger being closer to the rotational axis with respect to the higher stage side heat exchanger.