Tecumseh Products Company

Daniel J Hadesh

Edwin L Gannaway

Kenneth D Robertson

Edward A Cooksey

Robert A Lindstrom

Gabriella Cerrato Jay

Joseph A Ventimiglia

A compressor including a housing defining an interior plenum; a refrigerant received within the interior plenum and having a resonant wavelength; a motor disposed within the housing; a compression mechanism disposed within the housing and operably connected to the motor; and a tuner. The tuner has an open end and a closed end, and defines a resonating cavity, which is in direct communication with the interior plenum via the open end. The resonating cavity defines a length extending from open end to closed end that measures one-fourth of the resonant wavelength of the compressor assembly or of a noise frequency for which attenuation is desired. The tuner may be curved or straight and may extend vertically or horizontally. A suction inlet tube extends through the housing and communicates refrigerant to the interior plenum. The open end of the tuner indirectly communicates with the suction inlet tube through the interior plenum.

Hermetic compressor with one-quarter wavelength tuner

A compressor assembly including a compression mechanism, a rotating crankshaft operably coupled to the compression mechanism, the crankshaft provided with a longitudinally-extending oil conveyance passageway, the oil conveyance passageway in fluid communication with relatively moving interfacing bearing surfaces of the compression mechanism, and an oil pump assembly. The oil pump assembly includes an oil pump body having an interior surface and being rotatable relative to the crankshaft, a vane disposed within the pump body and rotating with the crankshaft, the vane having at least one end in sliding engagement with the interior surface of the oil pump body, and a port plate disposed within the pump body and having rotatably opposite first and second positions. The vane is in sliding engagement with an adjacent surface of the port plate, and the port plate is provided with an inlet and an outlet. The pump body receives oil from a source of oil, the oil received in the pump body directed by the vane into the port plate inlet, the port plate outlet in fluid communication with the oil conveyance passageway, the oil directed into the port plate inlet urged toward the port plate outlet in response to relative movement between the vane and the port plate, whereby oil is pumped from the source of oil through the oil conveyance passageway.

Positive displacement pump rotatable in opposite directions

A compressor assembly including a crankshaft with an axial oil passageway therein. An oil pump booster is mounted on the crankshaft to increase the oil flow rate through the axial oil passage. The oil pump booster includes a counterweight and an enclosed channel extending in the radial direction communicating with the axial passageway of the crankshaft. During rotation of the compressor crankshaft, the radial oil channel is likewise rotated creating a centrifugal force or reduced pressure area to increase the oil flow through the axial passage.

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Tecumseh, MI, United States of America

Daniel J Hadesh