Refrigeration system oil measurement and sampling device

Patent · Tue Sep 19 00:00:00 EDT 1989

OSTI ID:5312674

Baker, J A

This patent describes a sampling device for use with a refrigeration system having a refrigerant and oil entrained therein. It comprises: an elongated reservoir having a stepped bore therein for receiving refrigerant and oil carried thereby. The reservoir comprising a large bore diameter upper section having an index marking the fill level of the reservoir and a small bore diameter lower section having graduation marks for oil level measurement. The upper and lower sections comprising transparent material to allow observation of the contents, first valve means for coupling the reservoir to the refrigeration system to admit liquid refrigerant to the reservoir, second valve means for selectively coupling the reservoir to the low pressure side of the refrigeration system or to a vacuum line to evacuate vaporized refrigerant from the reservoir, and means for supplying heat to the refrigerant in the bore to facilitate vaporization of the refrigerant.

• Assignee: General Motors Corp., Detroit, MI
• Patent Number(s): US 4866994
• Application Number: PPN: US 7220285A
• OSTI ID: 5312674
• Country of Publication: United States
• Language: English

Related Subjects

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47 OTHER INSTRUMENTATION
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FLUIDS
LEVEL INDICATORS
MEASURING INSTRUMENTS
METERING
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
REFRIGERANTS
REFRIGERATORS
SAMPLERS
VALVES
WORKING FLUIDS