Abstract: A noise reduced compressor has a body, an energy dissipation element, and a structural element configured to retain the energy dissipation element relative to the body. A noise reducer for an HVAC system compressor has an energy dissipation element and a structural element connected to the energy dissipation element. A method of reducing compressor noise includes disposing an energy dissipation element between a body of the compressor and a structural element and compressing the energy dissipation element against between the body of the compressor using the structural element.

Abstract: A noise reduced compressor has a body, an energy dissipation element, and a structural element configured to retain the energy dissipation element relative to the body. A noise reducer for an HVAC system compressor has an energy dissipation element and a structural element connected to the energy dissipation element. A method of reducing compressor noise includes disposing an energy dissipation element between a body of the compressor and a structural element and compressing the energy dissipation element against between the body of the compressor using the structural element.

Abstract: A compressor for an air conditioning system comprises a piston and a pin. The piston comprises an aperture forming a piston bearing surface and a lubrication port in communication with the aperture. The pin comprises a pin bearing surface and the pin is received within the aperture to form an interface between the pin bearing surface and the piston bearing surface. In another embodiment, a method of lubricating within a compressor comprises rotating a crankshaft within a crankcase, introducing lubricant into the crankcase; and contacting the lubricant with a portion of a pin disposed within a piston via a lubrication port in the piston. In yet another embodiment, a piston for a compressor comprises an aperture forming a piston bearing surface and a lubrication port in communication with the aperture.

Abstract: A scroll-type refrigeration compressor has a gas-liquid mixture discharge passage extending through the driver scroll drive shaft for discharging refrigerant gas and entrained lubricant into a high pressure chamber in the compressor housing. An anti-reverse rotation valve is connected to the distal end of the drive shaft and includes a valve housing with radially extending discharge ports and a closure member movable to prevent reverse flow of high pressure gas to the scroll compression chambers to prevent reverse rotation on compressor shutdown. A pressure equalization port may be formed in the valve closure member, valve housing or the distal end of the drive shaft to allow slow bleed down of pressure from the high pressure side to the low pressure side to minimize starting torque of the drive motor. The valve may be formed from a tubular metal housing and having a plug-type closure member slidably disposed therein with the housing being press fitted in a counterbore in the end of the shaft.