Multi-story air conditioning system with oil return means

Details Multi-story air conditioning system with oil return means Multi-story air conditioning system with oil return means

1997-10-10

1999-03-02

Wayner, William

Refrigeration

Automatic control

Refrigeration producer

62471, 417148, F25B 3100, F04F 300

Patent

active

058756400

ABSTRACT:
In a multi story air conditioning system having elevated compressors and varying loads, a suction line oil return arrangement comprising dual parallel suction risers having a pressure relief valve positioned in one to ensure a minimum pressure drop for oil return in the other.

REFERENCES:
patent: 3257824 (1966-06-01), Shikasho
patent: 4625523 (1986-12-01), Toub et al.
patent: 5165248 (1992-11-01), Sishtla

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