Pumps – Motor driven – Resiliently mounted pump or motor
Patent
1977-04-11
1978-10-03
Croyle, Carlton R.
Pumps
Motor driven
Resiliently mounted pump or motor
F16F 1506, F04B 3900
Patent
active
041181530
ABSTRACT:
The invention relates to an encapsulated motor compressor assembly for refrigerators. An integrated motor compressor unit is resiliently supported inside the casing of the assembly on helical springs which engage the lower side of the stator laminations. The points of spring engagement are in a lower plane in which it is desired to prevent or minimize radial deflection of the motor compressor unit. This is accomplished by placing certain constraints on the design of the vertical motor shaft which has the usual eccentric crank for driving the compressor piston and a compensating weight for balancing the centrifugal effects of the crank. It was discovered that certain relationships between (1) the mass of the compensating weight and the spacing of its center of gravity from the shaft axis, and (2) the mass of the eccentric crank and the spacing of its center of gravity from the shaft axis, are in fact effective to minimize radial deflection of the motor compressor unit in the above referred to lower plane.
REFERENCES:
patent: 2059894 (1936-11-01), Newman
patent: 2583583 (1952-01-01), Mangan
patent: 2618172 (1952-11-01), Shoup
patent: 3306524 (1967-02-01), Matuki et al.
Kjeldsen Kjeld
Madsen Per Johan
Stannow Jorgen Christian
Tankred Hans Jurgen
Croyle Carlton R.
Danfoss A/S
Easton Wayne B.
Gluck R. E.
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