Pulse tube refrigerator
US5412952A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1994 |
| Grant date | May 9, 1995 |
| Priority date | — |
| Expiry date | Jun 1, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D19/006
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The present invention provides a pulse tube refrigerator, comprising a regenerator having an inlet port and an outlet port, a pulse tube having one end portion connected in series to the outlet port of the regenerator, a gas compressor connected to the inlet port of the regenerator, a first valve disposed between the discharge port of the gas compressor and the inlet port of the regenerator, a second valve disposed between the suction port of the gas compressor and the inlet port of the regenerator, a first valve controller for selectively opening/closing alternately the first and second valves to permit a high pressure coolant gas discharged from the discharge port of the gas compressor to be guided into the pulse tube through the regenerator and, then, to permit said coolant gas to be sucked into the gas compressor through the suction port thereof via the reverse passageway so as to generate coldness, a third valve disposed between the other end portion of the pulse tube and the discharge port of the gas compressor, a fourth valve disposed between the other end portion of the pulse tube and the suction port of the gas compressor, and a second valve controller serving to open/clos…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.