Cooler for refrigerator has chamber and piston assembly has chamber with piston assembly sealed against chamber wall

摘要

The cooler for a refrigerator has a chamber (1) and a piston assembly (6) which is sealed against the chamber wall (5). The chamber walls can have heat insulation and air can be used as the coolant medium. The chamber can have a pressure resistant partition wall. The piston can be fixed in position be a pin.