Patent ID: 6560969
Filing Date: 2003-05-13
Classification: F25B

Abstract:
A system for providing a ridethrough reserve for a pulse tube refrigerator, the system comprising:a pressurized tank containing a fluid for cooling a load; a pressure regulation valve coupling said pressurized tank to a rotary valve of the pulse tube refrigerator, said pressure regulation valve releasing said fluid from said pressurized tank and increasing a fluid pressure within the pulse tube refrigerator to a predetermined pressure range during said electrical power supply failure; a pneumatic motor operatively coupled to said rotary valve, said pneumatic motor driving said rotary valve during said electrical power supply failure; a power regulation valve coupling said pressurized tank to said pneumatic motor, said power regulation valve providing a driving gas volume for driving said pneumatic motor during said electrical power supply failure; and a release valve coupled to the pulse tube refrigerator for decreasing said fluid pressure to said predetermined pressure range during said electrical power supply failure.