Patent ID: 6279324
Filing Date: 2001-08-28
Classification: F25B

Abstract:
A heat-regenerating type cryogenic cooling apparatus comprising:a cryogenic temperature generating part including a heat regenerator, a cold head and a pulse tube connected in series; anda pressure vibrating part connected to the cryogenic temperature generating part and establishing pressure vibration of a working gas therein, the pressure vibrating part includinga compressor having a sucking port and a discharging port,a high-pressure line whose one end is connected to the discharge port of the compressor,a low pressure line whose one end is connected to the sucking port of the compressor,a high-pressure open/close valve connected to the other end of the high-pressure line,a low-pressure open/close valve connected to the other end of the low-pressure line,a high-pressure side passage connecting the high-pressure open/close valve and the cryogenic temperature generating part,a low-pressure side passage connecting the low-pressure open/close valve and the cryogenic temperature generating part, anda high-pressure source in fluid communication with the high-pressure line.