Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1985-06-19
1985-12-24
Moon, Charlie T.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
291564R, 74579E, 74595, 92128, 123193P, 123197A, 123197AB, 123197AC, 417415, 417902, B23P 1510
Patent
active
045596867
ABSTRACT:
The invention relates to a small, efficient hermetic compressor for refrigeration wherein reduction in size and minimization of parts is emphasized. The motor compressor unit is mounted within a sealed outer housing and comprises a cast crankcase, which is connected to the stator of the electrical motor by means of only three connecting screws that extend through the stator and are threadedly received in sockets in the downwardly depending legs of the crankcase. The crankshaft is pressed into the motor rotor and is journaled within the crankcase for rotation about a vertical axis. The crankcase includes a slot extending into the cylinder so that the connecting rod can be inserted laterally into the cylinder at the same time that it is slipped over the end of the crankshaft, and the wrist pin is then inserted through the same slot, through the piston and connecting rod, and is held in place by a spring clip. The compressor unit is resiliently mounted in the housing by means of four mounting spuds, which are press fit over the heads of the aforementioned connecting screws, and a fourth screw extending through the stator, and are resiliently captured within four coil springs connected to the base of the outer housing. In order to broaden the base of support for the compressor unit, the sockets receiving the heads of the screws are eccentric relative to the respective axes of the fingers of the spuds that are received in the coil springs.
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Riffe, D. R., "High Efficiency Reciprocating Compressors", from ASHRAE Journal, Sep., 1975.
Jeffers Albert L.
Moon Charlie T.
Niewyk Anthony
Tecumseh Products Company
Wallace Ronald S.
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