Abstract: A housing assembly for a refrigerant compressor in an air conditioning system includes a forward housing portion, and a rearward housing portion. The two mate together to contain the internal components and seal the compressor. A clamp engages the forward and the rearward housing portions and is rotated to compress the two together. It maintains a desired clamping force under various operating and environmental conditions.

Abstract: A housing assembly for a refrigerant compressor in an air conditioning system includes a forward housing portion, and a rearward housing portion. The two mate together to contain the internal components and seal the compressor. A clamp engages the forward and the rearward housing portions and is rotated to compress the two together. It maintains a desired clamping force under various operating and environmental conditions.

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 variable displacement swash plate type compressor which incorporates a lubrication passage formed in a cylinder block and crankcase, and a spray nozzle disposed at the crankcase end of the lubrication passage. The lubrication passage provides fluid communication between an oil sump and the spray nozzle, and the spray nozzle causes lubricating oil to be efficiently distributed as a fine mist or spray to the crank chamber. The lubrication passage and spray nozzle maximize the flow of refrigerant gas and lubricating oil to the crank chamber under all operating conditions providing cooling and lubrication to the internal moving components within the crankcase.

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 variable displacement swash plate type compressor which incorporates a lubrication passage formed in a cylinder block and crankcase, and a spray nozzle disposed at the crankcase end of the lubrication passage. The lubrication passage provides fluid communication between an oil sump and the spray nozzle, and the spray nozzle causes lubricating oil to be efficiently distributed as a fine mist or spray to the crank chamber. The lubrication passage and spray nozzle maximize the flow of refrigerant gas and lubricating oil to the crank chamber under all operating conditions providing cooling and lubrication to the internal moving components within the crankcase.