公开(公告)号：US20230049997A1

公开(公告)日：2023-02-16

申请号：US17812298

申请日：2022-07-13

申请人： Shanghai Institute of Technical Physics of the Chinese Academy of Sciences

发明人： Zhenhua JIANG ,  Yinong WU ,  Zheng HUANG ,  Wencui WU ,  Danfeng SHANG ,  Chuan CHEN ,  Xiaoping QU

IPC分类号： F16F15/023 ,  F25B9/14

摘要： A large-cooling-capacity integrated Stirling pneumatic refrigerator supported by large-stroke column springs, consisting of an active vibration absorber, a motor, a coaxial type compression-expansion piston, a compression piston column spring, an expansion piston column spring, a hot-end radiator, a cylinder wall, a housing, and a cold finger, wherein the coaxial compression-expansion piston is composed of a compression piston and an expansion piston, the expansion piston is nested in the compression piston, and the compression piston and the expansion piston share one hot-end radiator; the compression piston is driven by a motor, and the expansion piston is driven by gas force and no motor drive is required. The compression piston and the expansion piston are both supported by column springs, the column spring provides an axial restoring force for the coaxial type compression-expansion piston. The active vibration absorber is installed at the tail part of the housing.