Abstract: The invention relates to a refrigerator type motor-compressor assembly. The housing includes inner and outer tubular shaped casings with the inner casing in which the motor and compressor units are mounted being resiliently mounted relative to the outer casing. The cylinder block is rotatable with the motor shaft with the cylinder thereof extending transversely relative to the shaft. A piston in the cylinder is actuated by a pin carried by an annularly shaped member which is rotatable about a stationary, cylindrically shaped track member. The track member is eccentrically disposed relative to the axis of the motor shaft. An antechamber is provided on an end wall of the inner casing to form an isolated chamber between the inner and outer casings. The antechamber is utilized to provide for the exhausting of pressurized gas from the rotatable cylinder block.

Abstract: The invention relates to controls for a refrigeration assembly of the type having freezer and utility compartments with the freezer compartment having the greater cold requirement. The compartment evaporators are in parallel fluid flow lines with an electrically operated blocking device such as a PTC resistor being in the utility compartment line. Thermostats in the two compartments control the flow of refrigerant to the two compartments in a manner such that at the beginning and end of a cycle both compartments are supplied with refrigerant fluid while during the middle part of the cycle only the freezer compartment is supplied with refrigerant fluid.

Abstract: The present invention relates to a compressor refrigeration plant comprising a throttling device between the condenser and evaporator and, associated with the throttling device, an intermittently operable electric heating resistor, a chamber being disposed upstream of at least a part of the throttling device and the electric heating resistor being a PTC resistor which is arranged in the chamber and which, when a temperature range between the evaporating temperature of the refrigerant associated with the pressure in the chamber and the coking temperature of the refrigerant oil is exceeded, goes over from a low to a high resistance.

Abstract: The invention relates to a temperature control system for refrigeration unit. In this system a capillary tube extends between the condenser and the evaporator and a chamber upstream from at least a section of the capillary tube contains a PTC resistor. The PTC resistor is supplied with current in response to a thermostatic sensing of a predetermined low temperature in the room or compartment which contains the evaporator. In response thereto the PTC resistor generates enough heat to produce a vapor plug which throttles of stops the flow of refrigerant in the capillary section but not enough heat to cause coking of the refrigerant oil which would permanently plug the capillary tube. The downstream capillary section is so dimensioned that it is permeable to liquid refrigerant but is substantially impermeable to the refrigerant vapor generated in the chamber.

Abstract: The invention relates to refrigeration apparatus of the type having a casing which contains an electric motor and reciprocating compressor means. This type of apparatus is subject to creating undesirable vibrations and noises, the reduction of which is the object of the invention. This is done by adding additional mass to the casing which is equal to fifty per cent or more of the mass of the casing. The correspondingly greater mass inertia has the effect of causing the casing to absorb vibrations emanating from the interior of the casing to a lesser extent than before.