Abstract: There is provided a connecting rod for connecting a crank pin of an electric motor to a reciprocated piston. The connecting rod includes a sheet metal shaped member that at each end has a deep drawn cylinder mounting which in turn mounts a bushing that is of a greater axial length than the cylinder mounting. The shaped member has a longitudinal bead providing a depression extending adjacent to one of the mountings and terminate in spaced relationship to the other mounting whereby there is a planar surface extending transversely across the member longitudinally between the bead and the other mounting and adjacent to the widest part of the member to provide a bending line.

Abstract: The invention relates to an encapsulated motor-compressor unit for a refrigerator. The unit includes a capsule in which is resiliently mounted a combined or integrated motor and compressor having a common housing casting. The housing casting defines a cylinder for receiving a piston and a sound damping chamber. The housing casting has pressure and suction chambers at one end thereof and a suction passage which extends from the sound damping chamber to the suction chamber. The efficiency of the unit is improved by providing a tubular insert of thermally insulating material in the suction passage to reduce the transfer of heat from the compressor cylinder to the inlet gas in the suction passage.

Abstract: A pressure valve for a compressor of the hermetically encapsulated type. The valve includes a valve plate with a valve seat and upstanding pins on which at least one catch plate is placed to limit the stroke of a closing member formed by a valve leaf spring. The valve seat is disposed in an elongated depression of the valve plate and the pins are formed on an insert spring into the recess.

Abstract: A refrigeration compressor is provided with a combined sound dampening and centrifugal liquid separator chamber.

Abstract: The invention relates to a motor driven reciprocating piston compressor of the type utilized for encapsulated small refrigerators. Valving for the valve plate between the piston and cylinder chamber provides automatic unloading when the gas in the cylinder chamber falls below a predetermined temperature in the 80 to 100 degree centigrade range to prevent pressure build ups in the cylinder chamber during idle periods which cause undesired high starting torques.

Abstract: A pressure valve for a compressor of the hermetically encapsulated type. The valve includes a valve plate with a valve seat and upstanding pins on which at least one catch plate is placed to limit the stroke of a closing member formed by a valve leaf spring. The valve seat is disposed in an elongated depression of the valve plate and the pins are formed on an insert spring into the recess.