Method for lubricating compression-type refrigerating cycle

Details Method for lubricating compression-type refrigerating cycle Method for lubricating compression-type refrigerating cycle

1994-01-11

1996-05-28

Skane, Christine

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

With lubricants, or warning, stabilizing or anti-corrosion...

252 67, 62 84, 62468, C09K 504

Patent

active

055208339

ABSTRACT:
A method for lubricating a compression-type refrigerating cycle using a substitute flon refrigerant, i.e., a method for lubricating a compression-type refrigerating cycle which has either or both of an oil separator and a hot gas line, by the use of a substitute flon refrigerant such as 1,1,1,2-tetrafluoroethane and a lubricant having a kinematic viscosity of 2 to 50 cst at 100.degree. C. and an interfacial tension of 25 dyne/cm or above and being a liquid at ordinary temperatures.

REFERENCES:
patent: 4199461 (1980-04-01), Olund
patent: 4758366 (1988-07-01), Parekh
patent: 4829786 (1989-05-01), Sand et al.
patent: 4916914 (1990-04-01), Short
patent: 5001908 (1991-03-01), Mayer
patent: 5154846 (1992-10-01), Thomas et al.
patent: 5295357 (1994-03-01), Kaneko
patent: 5368765 (1994-11-01), Kaneko
patent: 5417872 (1995-05-01), Fukuda et al.
Chemical Abstracts, 110:215912, Tsvetkov et al, "Synthetic Oil for use with R22 and R502 Cooling Agents", 1989.

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