Patent ID: 9316418
Filing Date: 2016-04-19
CPC Classification: F25B,F25D

Claim Text:
1. An apparatus for achieving a cryogenic temperature in a movable system, the apparatus being a cryogenic temperature cooling apparatus running a mechanical refrigerator without a liquid refrigerant in a continuous rotation system and capable of achieving the cryogenic temperature and maintaining the cryogenic temperature, comprising: a rotating table which has a hole pierced in a rotation center portion in a vertical direction; a frame which holds the rotating table such that the rotating table is rotatable; a vacuum chamber which is fixed on the rotating table; a mechanical refrigerator without a liquid refrigerant which has a cooling section inside the vacuum chamber; a rotary joint for gas which is fixed at a bottom of the rotating table, includes a through-hole extending through the rotary joint in the vertical direction, and airtightly and rotatably feeds gas to the mechanical refrigerator without the liquid refrigerant; a compressor which is installed on a non-rotating surface and circulates gas to the mechanical refrigerator without the liquid refrigerant through the rotary joint for gas; and a rotary joint for wiring which is fixed to the rotary joint for gas and rotatably conducts electricity onto the rotating table, wherein a piece of internal wiring which is connected to the rotary joint for wiring is led through the through-hole and the hole, and electricity is supplied to a piece of equipment on the rotating table through the piece of internal wiring.