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Scroll type fluid machine

A fluid machinery and vortex technology, applied in the direction of rotary piston machinery, mechanical equipment, rotary piston pumps, etc., can solve the problem of large losses

Inactive Publication Date: 2009-06-17
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if there is lubricating oil accumulated around the Odan ring, there is a possibility that the loss caused by the Odan ring stirring the lubricating oil will be relatively large.

Method used

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  • Scroll type fluid machine
  • Scroll type fluid machine
  • Scroll type fluid machine

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

A first embodiment of the present invention will be described. The scroll compressor 10 of the present embodiment is composed of a scroll fluid machine according to the present invention. The scroll compressor 10 is installed in the refrigerant circuit of the refrigeration device and used to compress the gas refrigerant.

[0171] (The overall structure of the scroll compressor)

like figure 1 As shown, the scroll compressor 10 is configured as a so-called hermetic type. The scroll compressor 10 includes a casing 11 formed in the shape of a cylindrical closed container having a long vertical length. Inside the casing 11, the lower bearing member 30, the motor 35, and the compression mechanism 40 are provided in this order from the bottom to the top. Furthermore, inside the casing 11, a drive shaft 20 extending in the vertical direction is provided.

[0172] On top of the casing 11, a suction pipe 12 is installed. The end of the suction pipe 12 is connected to the compressi...

no. 3 example

A third embodiment of the present invention will be described. In this embodiment, the structures of the pin shaft portion 70 and the sliding groove 80 are changed in the first embodiment. Here, the difference between the scroll compressor 10 of the present embodiment and the first embodiment will be described.

[0252] like Figure 18As shown, a pair of sliding surfaces 72 are formed in the cylindrical pin 71 constituting the pin shaft portion 70 of this embodiment. The sliding surface 72 is a flat surface formed by cutting away a part of the side surface of the cylindrical pin 71 , and is formed in a range from the lower end of the cylindrical pin 71 to a position about half of the height. The sliding surface 72 is a flat surface parallel to the axis of the columnar pin 71, and is formed at positions facing each other across the axis of the columnar pin 71, and one sliding surface 72 is formed at each position.

[0253] In this embodiment, the base end portion of the cylin...

no. 4 example

A fourth embodiment of the present invention will be described. In this embodiment, the structure of the pin portion 70 is changed from the first embodiment. Here, differences between the scroll compressor 10 of this embodiment and the first embodiment described above will be described.

[0271] like Figure 21 As shown, the pin portion 70 of this embodiment is composed of a main body part 73 and a bushing part 74 .

[0272] The main body member 73 is formed in a cylindrical shape. The base end portion of the main body part 73 ( Figure 21 The upper end portion of the center) is buried in the peripheral portion 62 of the fixed scroll portion 60 . Specifically, a hole for inserting the main body part 73 is formed in advance in the peripheral portion 62, and the main body part 73 is press-fitted into the hole. That is, the main body member 73 of the pin shaft portion 70 is fixed to the fixed scroll portion 60 and is in a state of being prohibited from moving relative to the ...

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PUM

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Abstract

A fixed scroll (60) is provided with a pin shaft portion (70) which is formed in a cylindrical shape. Formed in a movable scroll (50) is a slide groove (80) which extends in the radial direction of the movable scroll (50). The pin shaft portion (70) of the fixed scroll (60) is engaged into the slide groove (80) of the movable scroll (50). During orbital movement of the movable scroll (50), the pin shaft portion (70) slidingly contacts a side surface of the slide groove (80), whereby rotation of the movable scroll (50) is restricted.

Description

technical field [0001] The present invention relates to a scroll type fluid machine, in particular to a mechanism for restricting the rotation of a movable scroll part. Background technique [0002] Heretofore, a scroll-type fluid machine has been widely used as a compressor or the like provided in an air-conditioning apparatus. In the scroll type fluid machine, the swirling lap portions are respectively provided in the fixed scroll portion and the movable scroll portion, and the fixed side lap portion and the movable side lap portion mesh with each other to form a fluid chamber. In this scroll-type fluid machine, the movable scroll portion revolves, and the volume of the fluid chamber changes accordingly. For example, a scroll-type fluid machine constituting a compressor compresses the fluid in the fluid chamber by gradually reducing the volume of the fluid chamber in the closed state. [0003] In the scroll type fluid machine, it is necessary to restrict the rotation of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C18/02
CPCF04C29/0042F01C17/00F04C18/0269F04C18/0215Y10T74/18544F04C18/02
Inventor 上川隆司
Owner DAIKIN IND LTD