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Rotary compressor and manufacturing method for rotary compressor

A manufacturing method and technology for compressors, which can be applied to machines/engines, rotary piston machines, mechanical equipment, etc., can solve problems such as impeding reciprocating motion of blades and sliding loss, reducing pressure loss, suppressing sliding resistance, and improving flatness Effect

Pending Publication Date: 2019-10-08
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is conceivable that the convex portion remaining on the side of the blade catches with the convex shape of the blade mounting groove, hindering the smooth reciprocating motion of the blade, resulting in sliding loss during compressor operation

Method used

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  • Rotary compressor and manufacturing method for rotary compressor
  • Rotary compressor and manufacturing method for rotary compressor
  • Rotary compressor and manufacturing method for rotary compressor

Examples

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Effect test

Embodiment approach 1

[0023] The rotary compressor related to this embodiment is, for example, a multi-stage cylinder type or a single cylinder type rotary compressor. In the refrigeration cycle, in order to compress the refrigerant and send the compressed refrigerant to the refrigeration circuit And used. In the following description, a multi-stage cylinder type rotary compressor will be described as an example.

[0024]

[0025] figure 1 It is a schematic diagram of the rotary compressor 1 concerning this embodiment. Such as figure 1 As shown, the rotary compressor 1 has a cylindrical airtight container 2 made of steel plate, an electric unit 12 arranged above the airtight container 2 , and a rotary compression mechanism 4 arranged below the electric unit 12 .

[0026] The electric unit 12 has a crankshaft 3 and is connected to a rotary compression mechanism unit 4 disposed below the electric unit 12 via the crankshaft 3 . The electric unit 12 is a driving source for rotating the rotary com...

Embodiment approach 2

[0055] The rotary compressor 1 according to Embodiment 2 will be described. The rotary compressor 1 of the present embodiment differs from the first embodiment in that a concave shape R is formed on the inner surface of the vane attachment groove 11 . In addition, in this embodiment, the difference from Embodiment 1 will be described, and the same reference numerals will be attached to the same parts as Embodiment 1, and description will be omitted.

[0056] Figure 7 is a cross-sectional curve of the side surface of the vane mounting groove 11 of the rotary compressor 1 according to the present embodiment. in addition, Figure 8 is the cross-sectional curve of the side surface of the conventional blade mounting groove. Figure 7 with Figure 8 and Figure 4 with Figure 5 Similarly, the horizontal axis shows the dimension in the longitudinal direction of the blade mounting groove 11 , and the vertical axis represents the surface texture of the cross section perpendicula...

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Abstract

Provided are a rotary compressor provided with a vane that reciprocates smoothly and a manufacturing method for the rotary compressor. The rotary compressor is provided with a vane mounting groove formed on a cylinder and a vane that reciprocates with the side surface thereof in contact with the inner side surface of the vane mounting groove. The side surface section of the vane is provided with an extremely smooth surface property indicated by a surface roughness value of less than 0.1 [mu]m in terms of ten-point average roughness.

Description

technical field [0001] The invention relates to a rotary compressor and a manufacturing method of the rotary compressor, in particular to the surface properties of blades and blade installation grooves. Background technique [0002] In a rotary compressor, a rotary piston fitted to the eccentric shaft portion of the crankshaft is movably disposed in the central space of the cylinder body, the outer peripheral surface is in contact with the inner wall surface of the cylinder body, and the outer peripheral surface is in contact with the inner wall surface of the cylinder body. The vanes extending from the inner surface of the cylinder are in an abutting state. Also, the space formed in the gap between the cylinder and the rotary piston is divided into a compression chamber and a suction chamber by vanes. [0003] The rotary piston successively repeats the following steps: the suction process of sucking refrigerant gas into the space between the cylinder and the rotary piston ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/356
CPCF04C18/356
Inventor 桧田政明朴木继雄
Owner MITSUBISHI ELECTRIC CORP
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