F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 15/08 (2006.01) C10M 169/04 (2006.01) C10M 171/00 (2006.01) F04B 39/00 (2006.01) F04B 39/02 (2006.01) F25B 31/00 (2006.01)
Patent
CA 2107053
An energy efficient hermetic compressor for compressing hydrofluorocarbon refrigerants. The compressor includes a motor compressor unit with a rotating oil pickup tube to which an oil paddle is attached. The oil paddle rotates in a base lubricant of polyol ester mixed with a siloxane ester foaming agent. The combination of the foaming additive with the oil paddle creates a foam layer that floats in the oil sump to reduce the sound level of the compressor.
Mccarthy Tetrault Llp
Tecumseh Products Company
LandOfFree
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