F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
62/30, 230/50
F04B 39/00 (2006.01) F25B 31/02 (2006.01)
Patent
CA 1151615
ANTI-SLUG SUCTION MUFFLER FOR HERMETIC REFRIGERATION COMPRESSOR ABSTRACT OF THE DISCLOSURE A hermetic refrigeration motor-compressor assembly includes a motor driving a compressor having suction and discharge ports. A hermetically sealed casing encloses the motor and compressor and has a gas inlet opening coupled by a conduit to the evapor- ator of the refrigeration system. A discharge conduit is coupled to the compressor discharge port and extends out of the casing to the condenser. The casing also encloses a suction muffler having a wall defining a chamber, the wall having inlet and outlet openings communicating with the chamber, the casing and muffler inlet openings being in closely spaced alignment to provide a semi-direct suction coupling. The muffler outlet opening is directly coupled to the compressor suction port. The wall of the muffler has another opening therein spaced from the inlet and outlet openings and communicating with the chamber. A passage in the muffler chamber extends between the inlet and other opening and has opposite ends respectively coupled thereto. The passage has a vent opening therein communi- cating with the chamber so that gas entering the passage through the muffler inlet opening flows outwardly through the vent opening into the chamber and thence through the outlet opening to the compressor suction port whereas, a slug of liquid refrig- erant flows through the passage and out of the other opening to the sump in the casing.
364995
Macrae & Co.
Tecumseh Products Company
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