TH72129A - Reciprocating compressors and manufacturing methods - Google Patents

Abstract

DC60 (26/09/54) In a reciprocating compressor comprising a cylinder, a piston capable of moving back and forth in the cylinder, and a piston rod for driving the piston to move back and forth in the cylinder, the piston includes a piston bearing surface forming part of a spherical shape, the piston rod including a piston rod bearing surface forming part of a spherical shape, and the piston bearing surface and piston rod bearing surfaces are interlocked to drive the piston by the piston rod. The piston bearing surface includes an oxide, preferably Fe3O4, as the principal component. In a reciprocating compressor comprising a cylinder, a piston capable of moving back and forth in the cylinder, and a piston rod for driving the piston to move back and forth in the cylinder, the piston includes a piston bearing surface forming part of a spherical shape, the piston rod including a piston rod bearing surface forming part of a spherical shape, and the piston bearing surface and piston rod bearing surfaces are interlocked to drive the piston by the piston rod. The piston bearing surface includes an oxide, preferably Fe3O4, as the principal component.

Claims (8)

1.Piston compressor It consists of a cylinder, a piston rod, and a piston that moves back and forth within the cylinder. The piston rod has a circular connector that is connected to the piston. Which the piston is made of sintered metal And has a spherical support with a curved surface in contact with the connector The spherical shape of the piston rod and Where one surface of the spherical support is machined to form a spherical shape, an oxide film formation made of sintered metal, envisioned on that surface. And then make the film surface The oxide is smooth 2. Reciprocating compressor According to claim 1, the sealed alloy is a metal that includes iron, and the Oxide film is Fe3O4. 3. Reciprocating compressors according to claim 1, which is also included in addition Crankshaft For driving piston rod And frames for supporting the crankshaft Where the frame is formed in the same piece as A cylinder where the piston will move back and forth in it 4.Methods for manufacturing reciprocating compressors Where the piston has a spherical support which Contact with the spherical connector of a connecting rod moving back and forth within a cylinder that is assembled by machining the surface of the piston spherical support, which is made of sintered metal to form a spherical shape The form of oxides made of sintered metal on the surface of the spherical support and smoothing the surface of the oxide film. 5. Methods for Manufacturing Reciprocating Compressors According to claim 4, where the metal sintered A metal that includes iron And that oxide film is Fe3O4. 6.Methods for manufacturing reciprocating compressors According to claim 4, where their respective stages of doing To smooth the surface of the oxide film, it is performed by tape wrapping or brush polishing operations. 7.Methods for manufacturing reciprocating compressors According to claim 4, where the process of doing Gives the oxide film surface smooth, resulting in a removal of the oxide film surface by 0.01 mm. 8.Methods for manufacturing reciprocating compressors According to claim 4, where the process of Forming an oxide film Was executed by making the support spherical. Being exposed to the atmosphere, the steam being heated