Refrigerant flow reversing valve

Details Refrigerant flow reversing valve Refrigerant flow reversing valve

1979-10-26

1982-03-09

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

13762566, 251368, 623246, F16K 1107

Patent

active

043184251

ABSTRACT:
A refrigeration system including a refrigerant flow reversing valve. The flow reversing valve includes a valve housing providing a chamber communicating with a refrigerant compressor discharge via a first port and a bearing surface with second, third and fourth ports opening into it, the second port communicating with the compressor inlet. A valving member is disposed on the surface for sliding movement to communicate, respectively, the first and fourth and second and third ports when in one position and to communicate, respectively, the first and third and second and fourth ports in a second position. The valving member is formed by a rigid plastic body defining a cavity by which the second port is communicated with the respective third and fourth ports and a face surrounding the cavity extending generally parallel to the bearing surface. A thin sheet of polytetrafluoroethylene is interposed between the valving body face and the bearing surface to enable low friction movement of the valving member between its positions. The sheet and valving body face are mechanically attached to each other.

REFERENCES:
patent: 2927606 (1960-03-01), Matchett, Jr. et al.
patent: 2969655 (1961-01-01), Salter
patent: 2976701 (1961-03-01), Greenawalt
patent: 2983286 (1962-05-01), Greenawalt et al.
patent: 3039491 (1962-06-01), Raney
patent: 3056574 (1962-10-01), Greenawalt
patent: 3680788 (1972-08-01), Cox
patent: 3897043 (1975-07-01), McBain et al.
patent: 4025050 (1977-05-01), Manki et al.
patent: 4213483 (1980-07-01), Bauer
Handbook of Adhesive Bonding, Charles V. Cagle, McGraw-Hill Book Co., 1973, pp. 19-17 thru 19-20.

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