Oil sampling and charging method and apparatus for refrigeration

Details Oil sampling and charging method and apparatus for refrigeration Oil sampling and charging method and apparatus for refrigeration

1975-04-16

1976-08-17

King, Lloyd L.

Refrigeration

Processes

Lubricant handling

62 85, 62471, F25B 4302, F25B 4700

Patent

active

039746593

ABSTRACT:
The specification and drawings disclose a method and apparatus for taking a sample of oil from the refrigerant fluid circulating in a refrigeration unit of the type including a compressor, a condenser, and an evaporator. A pressure chamber is provided which may be conveniently connected to cause the hot vapor gas coming from either the compressor or condenser and pass through the chamber. As the hot vapor gas enters the chamber it is impinged against a baffle causing the oil within the vapor gas to collect as droplets and flow to the bottom of the chamber. The oil free refrigerant vapor gas is thereafter extracted from the chamber and returned to the refrigeration unit at a point on the low pressure side of either the compressor or condenser. The extraction from the chamber takes place at a point below the level at which the vapor gas is supplied to the chamber and at the opposite side of the baffle. The collected oil level within the chamber is regulated by the level of extraction. When sufficient oil is recovered for test purposes the chamber is disconnected from the refrigeration unit and oil removed from the chamber. The same general method and apparatus can be used for charging predetermined quantities of oil into a refrigeration system.

REFERENCES:
patent: 2364783 (1944-12-01), Goddard et al.
patent: 2749723 (1956-06-01), Webber
patent: 2749723 (1956-06-01), Webber
patent: 2786340 (1957-03-01), Chausson
patent: 3021689 (1962-02-01), Miller
patent: 3283532 (1966-11-01), Kocher
patent: 3461682 (1969-08-01), Darby

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