Patent ID: 9410725
Filing Date: 2016-08-09
CPC Classification: F25B,F25D,Y10T

Claim Text:
1. A refrigerator installing structure that enables a refrigerator including a cylinder and a displacer to be installed in a vacuum vessel in which an object to be cooled is accommodated, the displacer being removed from the cylinder during maintenance, the cylinder being movable inside a sleeve between a position at which the cylinder thermally contacts the sleeve and another position at which the cylinder does not thermally contact the sleeve, the refrigerator installing structure comprising: a discharge mechanism configured to discharge a gas inside a space formed between the sleeve and the cylinder if a pressure inside the space becomes greater than or equal to a predetermined pressure, and the discharge mechanism provided in a measurement port which is provided in the refrigerator so as to cause the space to communicate with an outside space outside the refrigerator installing structure, the discharge mechanism including