Periodically operating refrigeration machine
AssigneeForschungszentrum Karlsruhe GmbH
InventorAlbert Hofmann
Life of this patent
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Abstract
In a periodically operating refrigeration machine which includes a thermal performance amplifier based on the known pulse tube process, the thermal performance amplifier includes a compression arrangement with a first heat exchanger for transferring heat to the environment a regenerator, a second heat exchanger supplying heat to the performance amplifier, a pulse tube, and a third heat exchanger for removing heat which is disposed adjacent a pulse tube cooler. The pulse tube cooler also includes a regenerator, a heat exchanger and a pulse tube, another heat exchanger and an expander all sized for an optimal operation.
Claims7
A periodically operating refrigeration machine, comprising:
- a thermal performance amplifier based on a pulse tube process and a pulse tube cooler arranged in series with a heat exchanger operating as a cooler, said thermal performance amplifier including a compressor arrangement for compressing gas, a first heat exchanger for removing heat from the gas compressed by said compressor arrangement, a regenerator arranged in series with said first heat exchanger, a second heat exchanger arranged in series with said regenerator for supplying heat to the gas in said performance amplifier, a pulse tube arranged in series with said second heat exchanger, said pulse tube comprising a third heat exchanger arranged in said pulse tube for removing heat therefrom, (pulse tube cooler) a fourth heat exchanger, a fifth heat exchanger and an expander all arranged in series in said pulse tube, said refrigeration machine being a Stirling-type machine including in said compressor arrangement a compressor piston and as expander a double inlet phase shifter in the form of pipe connection with a variable cross-section from the third heat exchanger to the fifth heat exchanger and a pipe connection with a variable cross-section between the fifth heat exchanger and an expansion container.
A periodically operating refrigeration machine comprising:
- a thermal performance amplifier based on a pulse tube process and a pulse tube cooler arranged in series with a heat exchanger operating as a cooler, said thermal performance amplifier including a compressor arrangement for compressing gas, a first heat exchanger for removing heat from the gas compressed by said compressor arrangement, a regenerator arranged in series with said first heat exchanger, a second heat exchanger arranged in series with said regenerator for supplying heat to the gas in said performance amplifier, a pulse tube arranged in series with said second heat exchanger, said pulse tube comprising a third heat exchanger arranged in said pulse tube for removing heat therefrom, a fourth heat exchanger, a fifth heat exchanger and an expander all arranged in series in said pulse tube, said refrigeration machine being a Gifford-McMahon (GM) type machine with a valve-controlled line extending from a high pressure reservoir to the GM machine and a valve controlled line extending between a low pressure reservoir and said machine and said expander being a double inlet phase shifter formed by a variable cross-section line connection from the third heat exchanger to the fifth heat exchanger and a variable cross-section line connection between the fifth heat exchanger and an expansion container.
Dependencies are inferred from the claim text.