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.

Abstract: The invention relates to a refrigeration type motor compressor assembly in which an integrated motor compressor unit is resiliently mounted in a sealed casing. A skeleton-like frame facilitates integrating the motor and compressor with a minimum amount of structural material. This frame includes a shaft bearing member and a cylinder member for the compressor function, these two members being joined by a beam member which is attached to the bearing member and extends to the cylinder member. The beam member has support posts depending therefrom which rest on the upper surface of the stator laminations.

Abstract: The invention relates to a refrigeration type motor compressor assembly in which an integrated motor compressor unit is resiliently mounted. The motor stator includes a stack of rectangularly shaped laminations with bevelled corners. Stator bolts extend upwardly through the laminations with the bolt heads projecting downwardly from the lower surface of the laminations. The resilient suspension system includes four generally cone shaped spring retaining abutment members attachable from below to the four corners of the stack of laminations. These abutment members have recesses for receiving the bolt heads and collars which extend outwardly beyond the bevelled corners of the stack of laminations. The collars are abuttingly engageable with the inner surface of the casing during lateral movement of the spring mounted motor compressor unit to provide bumper protection for this unit.