Apparatus and method for increasing the speed of a displacer-exp

Details Apparatus and method for increasing the speed of a displacer-exp Apparatus and method for increasing the speed of a displacer-exp

1982-06-07

1984-02-14

Capossela, Ronald C.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

60520, 13762413, 13762521, F25B 900

Patent

active

044308639

ABSTRACT:
A method and apparatus for increasing the refrigeration capacity of a displacer-expander type cryogenic refrigerator pneumatically actuated by a rotary valve by increasing the number of ports of the rotary valve to increase reciprocating speed of the displacer without increasing speed of rotation of the valve.

REFERENCES:
patent: 3119237 (1964-01-01), Gifford
patent: 3205668 (1965-09-01), Gifford
patent: 3312072 (1967-04-01), Gifford
patent: 3536451 (1970-10-01), Ludwin
patent: 3620029 (1971-11-01), Longsworth
patent: 3625015 (1971-12-01), Chellis
patent: 3937252 (1976-02-01), Ishida

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