Fast defrost heat exchanger

Details Fast defrost heat exchanger Fast defrost heat exchanger

1981-03-16

1983-10-04

Makay, Albert J.

Refrigeration

Processes

Defrosting or frost inhibiting

62151, 62525, 62198, F25D 2100

Patent

active

044071370

ABSTRACT:
A method and apparatus for promoting effective heat transfer between refrigerant flowing through a heat exchanger and air flowing thereover and for providing a method of defrost of a portion of the heat exchanger wherein frost has accumulated. A headering arrangement is provided such that during defrost a portion of the heat exchanger is isolated and the fluid being supplied to the frosted portions of the coil is directed to the frosted portions to make the most effective use of the heat energy therein. Valve means are provided for regulating the flow of refrigerant to an intermediate header during defrost.

REFERENCES:
patent: 3142970 (1964-08-01), Hale
patent: 3150501 (1964-09-01), Moore
patent: 3289428 (1966-12-01), Haines
patent: 3529659 (1970-09-01), Trask
patent: 3631873 (1969-06-01), Swithenbank
patent: 3731497 (1973-05-01), Ewing
patent: 4057975 (1977-11-01), Del Toro et al.
patent: 4057977 (1977-11-01), Chambless
patent: 4089368 (1978-05-01), Bell, Jr.

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