Abstract: A cylinder liner system comprising a cylinder liner having an elongated tube, an inside surface, an outside surface, and a notch on a top side; a block having a bore for concentrically accepting the cylinder liner and a locking pin that engages the cylinder liner and the block.

Abstract: A swashplate type compressor that includes one or more pistons having an extra support surface for receiving a side load is provided. In a first preferred embodiment of the piston, a rotational restrictor that overlaps the head region is utilized as the extra support surface. In a second preferred embodiment, a support projection, separate from the head region, is utilized as the extra support surface. The extra support surface of the piston of the present invention receives a portion of the side load exerted on the piston, thereby relieving some of stress applied to the head region.

Abstract: A cylinder liner system comprising a cylinder liner having an elongated tube, an inside surface an outside surface, and an notch on the top side; a block having a bore for concentrically accepting the cylinder liner and a locking pin that engages the cylinder liner and the block.

Abstract: The present invention relates to an oil separator for separating oil from a gaseous medium discharged by a compressor. The oil separator includes an inlet for communication with the discharge outlet of a compressor, and first and second outlets. The first outlet allows separated refrigerant to escape the oil separator, and the second outlet allows separated oil to escape the oil separator. A tortuous path lies between the inlet and a first outlet, and is comprised of one or more enlarged regions and one or more narrow regions that are angularly situated with each other. The walls of the tortuous path provide surfaces on which the oil contained within the gaseous medium can be impinged, and thereby separated from the gaseous medium. The oil separator may also include a collection chamber and drainage pathways that communicate with the tortuous path. The oil separator can be a separate body that is attached to a compressor, or may be integrally formed by a housing of a compressor.

Abstract: An oil separator comprising a cylindrical portion, an inlet for incoming gas/oil mixture, an outlet for separated gas, a lower portion, and an outlet for separated oil is provided. The lower portion decreases in diameter as it proceeds from top to bottom, thereby providing for an increase in centrifugal force within the oil separator and greater separation of oil.

Abstract: A variable displacement swash plate type compressor which incorporates a conduit formed in the cylinder block to provide fluid communication between a crank chamber and one or more cylinders to eliminate the need for an orifice tube in fluid communication between a discharge chamber and the crank chamber and to increase the flow of refrigerant gas and lubricating oil to the crank chamber under all operating conditions and to increase the internal fluid pressure in the crank chamber.

Abstract: The present invention relates to an oil separator for separating oil from a gaseous medium discharged by a compressor. The oil separator includes an inlet for communication with the discharge outlet of a compressor, and first and second outlets. The first outlet allows separated refrigerant to escape the oil separator, and the second outlet allows separated oil to escape the oil separator. A tortuous path lies between the inlet and a first outlet, and is comprised of one or more enlarged regions and one or more narrow regions that are angularly situated with each other. The walls of the tortuous path provide surfaces on which the oil contained within the gaseous medium can be impinged, and thereby separated from the gaseous medium. The oil separator may also include a collection chamber and drainage pathways that communicate with the tortuous path. The oil separator can be a separate body that is attached to a compressor, or may be integrally formed by a housing of a compressor.

Abstract: A swashplate type compressor that includes one or more pistons having an extra support surface for receiving a side load is provided. In a first preferred embodiment of the piston, a rotational restrictor that overlaps the head region is utilized as the extra support surface. In a second preferred embodiment, a support projection, separate from the head region, is utilized as the extra support surface. The extra support surface of the piston of the present invention receives a portion of the side load exerted on the piston, thereby relieving some of stress applied to the head region.

Abstract: An oil separator comprising a cylindrical portion, an inlet for incoming gas/oil mixture, an outlet for separated gas, a lower portion, and an outlet for separated oil is provided. The lower portion decreases in diameter as it proceeds from top to bottom, thereby providing for an increase in centrifugal force within the oil separator and greater separation of oil.

Abstract: A variable displacement swash plate type compressor which incorporates a lubrication passage formed in the drive shaft, wherein the lubrication passage provides fluid communication between a discharge chamber and a crank chamber. The lubrication passage maximizes the low of refrigerant gas and lubricating oil to the crank chamber under all operating conditions providing cooling and lubrication to the internal moving components in the crank chamber. The lubrication passage facilitates the efficient flow of lubricating oil from the discharge chamber to the crank chamber.

Abstract: A variable displacement swash plate type compressor which incorporates a conduit formed in the cylinder block to provide fluid communication between a crank chamber and one or more cylinders to eliminate the need for an orifice tube in fluid communication between a discharge chamber and the crank chamber and to increase the flow of refrigerant gas and lubricating oil to the crank chamber under all operating conditions and to increase the internal fluid pressure in the crank chamber.

Abstract: A variable displacement swash plate type compressor which incorporates an impeller attached to a drive shaft, and a plurality of blades for, efficiently directing lubricating oil to a shaft seal. The impeller provides a mist of lubricating oil to the crankcase, and the blades direct lubricating oil to a shaft seal. The impeller and blades maximize the distribution and flow of lubricating oil to the crank chamber under all operating conditions providing cooling and lubrication to the internal moving components within the crankcase.

Abstract: A variable capacity swash plate type compressor 10, which incorporates an inlet port 40 disposed in a crankcase 36 leading to a crank chamber 38. The inlet port 40 places the crank chamber 38 in the active flow path of a refrigerant gas for the compressor 10 and eliminates the need for an orifice tube in fluid communication with a discharge chamber 22 and the crank chamber 38 thereby increasing the maximum capacity of the compressor 10.

Abstract: A variable capacity swash plate type compressor 10 incorporates a pressure relief valve 43 in fluid communication with a suction chamber 20 and a crank chamber 40. The pressure relief valve 43 prevents over pressurization in the crank chamber 40 to minimize friction and forces acting on the components of the compressor 10.

Abstract: A piston having anti-rotation for a swashplate compressor includes a body portion extending axially and a connecting portion spaced radially from a longitudinal axis of the body portion and extending axially. The piston also includes a pair of opposed anti-rotation wings extending radially from one end of the body portion between the connecting portion and the longitudinal axis of the body portion.

Abstract: A variable swash plate compressor (10), including a housing (12), a top inlet (14A), a bottom inlet (14B) , a pumping chamber (16), a compression piston (18), a top outlet (20A), a bottom outlet (20B) , a drive shaft (22) , a control surface element (24), a pinnacle element (26), a swash plate (28), a bore (30) and a pocket (32) formed in the swash plate (28), a pivot element tip (38) and fulcrum piston assembly (40). Wherein the angle of the swash plate (28) relative to the drive shaft (22) is varied to bring about a larger or smaller travel path of the compression piston (18) and thereby increasing or decreasing the output capacity of the variable swash plate compressor (10).

Abstract: A multiple stage rotary compressor having a housing with a pump cavity and an orbiting ring piston in the cavity. A cylindrical post carried by the housing within the orbiting ring. A pair of vanes engaging the outer surface of the orbiting ring to define first-stage having a pair of primary pumping chambers in the cavity. A second pair of internal vanes contacting the inner surface of the orbiting ring to define a second-stage having a pair of secondary pumping chambers. A capacity control mechanism applied to the first-stage operative to limit the compressor capacity to the second-stage only. A second capacity control mechanism applied to the second-stage operative to variably bypass second-stage discharge to second-stage suction. The plurality of capacity controllers operating to establish varying compressor pump capacity depending upon the operating requirements of the compressor.

Abstract: A control strategy for a multiple stage rotary compressor having compressive capacity output based on the demand of an air conditioning system. The constant variance in capacity to meet demand is obtained by recirculation of the multiple stages. Capacity is reduced to less than full capacity by recirculating the output of each stage back to the input of that particular stage. Capacity is increased up to full capacity by decreasing recirculation of the output of each stage back to the input of that particular stage. Additional stages and or portions operate in the same manner and provide further recirculation variability to provide a recirculation schedule based on demand.