Cpi Engineering Services, Inc.

Glenn D Short

Thomas Edward Rajewski

Lars I Sj Oholm

A lubricant composition of suitable viscosity miscible in non-chlorinated, fluorinated hydrocarbon refrigerants includes polyhydric alcohol esters, such as TMP, mono and/or di-pentaerythritol esters, made with branched carboxylic acids.

Lubricant composition for fluorinated refrigerants used in compression

A fluid composition of suitable miscibility and solubility in ammonia, chlorofluorocarbon, hydrochlorofluorocarbon, and hydrofluorocarbon refrigerants includes and a refrigerant selected from the group consisting essentially of ammonia, chlorofluorocarbons, hydrochlorofluorocarbons, and hydrofluorocarbon refrigerants and a lubricant composition made with an organic oxide and an alcohol and comprises a polyalkylene glycol of the formula:

Lubricant composition for ammonia refrigerants used in compression

A lubricant composition of suitable viscosity miscible non-chlorinated, fluorinated hydrocarbon refrigerants includes polyhydric alcohol esters, such as TMP, mono and/or di-pentaerythritol esters, made with branched carboxylic acids.

A rotary displacement compression heat transfer system and method for improving its efficiency includes a rotary displacement compressor for compressing a refrigerant, a condensor connected with the outlet of the compressor, an evaporator connected with the inlet of the compressor, an oil pump for injecting oil into the compressor, an oil separator for separating out the oil and recirculating it to the compressor, a non-chlorinated hydrocarbon refrigerant, and a synthetic oil ingredient in the oil providing an inverse solubility characteristic where a mixture of the refrigerant and oil has two immiscible phases in the compressor's operating temperature range and has only one dissolved liquid phase at a temperature in the evaporator's operating range at a weight concentration of oil less than about 5%.

Rotary displacement compression heat transfer systems incorporating

A rotary displacement compression heat transfer system and method for improving its efficiency includes a rotary displacement compressor for compressing a refrigerant, a condensor connected with the outlet of the compressor, an evaporator connected with the inlet of the compressor, an oil pump for injecting oil into the compressor, an oil separator for separating out the oil and recirculating it to the compressor, a non-chlorinated fluorinated refrigerant, and a synthetic oil providing an inverse solubility characteristic where a mixture of the refrigerant and oil has two immiscible phases in the compressor's operating temperature range at a weight concentration of oil in the range of about 10-60% and has only one dissolved liquid phase at a temperature in the evaporator's operating range at a weight concentration of oil less than about 5%.

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Midland, MI, United States of America

Glenn D Short