Bidirectional flow filter-drier

Details Bidirectional flow filter-drier Bidirectional flow filter-drier

1976-10-05

1977-06-14

Spear, Jr., Frank A.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Check valve

210264, 210DIG6, 210DIG7, B01D 3512

Patent

active

040295800

ABSTRACT:
A filter-drier unit adapted for bidirectional flow in heat pump systems. This filter-drier unit includes an individual filter-drier in each compartment formed on opposite sides of a partition in a shell. A conduit connects the inlet of each filter-drier with the compartment other than the one in which the filter-drier is located. A check valve is connected to the outlet of each filter-drier to enable flow into the compartment in which the filter-drier is located and to preclude backflow, whereby flow into either one of the compartments through an associated shell port passes by the filter-drier in the said one compartment and through the inlet of the filter-drier in the other compartment, and thence into the said other compartment and out through its associated shell port. In one embodiment, the individual filter-driers and the fittings attaching the filter-driers to the partition are relatively laterally offset in the shell. In another embodiment, the individual filter-driers on opposite sides of the partition are disposed in substantial endwise alignment in the shell.

REFERENCES:
patent: 3025233 (1962-03-01), Figert
patent: 3178022 (1965-04-01), Balogh
patent: 3799347 (1974-03-01), McDuffie
patent: 3815752 (1974-06-01), Hoffman et al.
patent: 3827218 (1974-08-01), Settlemeyer

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