Tecumseh Products Company

John S Kosco

Nelik I Dreiman

Otto K Riegger

Robert B Weatherwax, Iii

Robert J Reynolds

An improved muffler system for a compressor assembly where the muffler is disposed within the compressor housing and a peripheral edge of the muffler abuts, and expansively engages, the interior surface of the housing in an interference fit relationship. The compressor pump is attached to the muffler where the pump is substantially thermally and vibrationally isolated from the housing. The muffler, the compressor pump and the compressor housing define a series of chambers in which noise generated by the compressor pump is dissipated. The dimensions of the chambers are chosen to cause acoustical waves having specific, undesirable frequencies to cancel each other out.

Discharge muffler system for a rotary compressor

A rotating type machine including a first moving member having a first surface and a second member having a second surface slidably interfacing with the first surface. The first and second surfaces have relative movement therebetween, and one of the first and second members is supported by the other member through the interface of their respective first and second surfaces. At least one of the first and second surfaces is provided with at least one recess therein. A liquid lubricant is provided between the first and second surfaces, and the lubricant is received in the recess. Relative to the surface in which the recess is provided, the recess has a maximum depth which ranges between about 0.00125 and 0.0060 inches, and a surface area which ranges between about 1.767&times;10 and 1.963&times;10 square inches, whereby, during operation of the machine, a pressure spike is created in the lubricant above the recess, and first and second surfaces are hydrodynamically separated from each other by the pressure spike.

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Tecumseh, MI, United States of America

John S Kosco