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Scroll compressor

A scroll compressor, scroll technology, applied in the field of scroll compressors

Pending Publication Date: 2022-03-22
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is preferable to suppress this oil loss phenomenon as much as possible

Method used

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  • Scroll compressor
  • Scroll compressor
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Embodiment Construction

[0047] figure 1 A longitudinal sectional view of the scroll compressor 10 is shown. Hereinafter, in order to describe the direction and arrangement of the scroll compressor 10, expressions such as "upper" and "lower" are sometimes used, but unless otherwise specified, figure 1 Expressions such as "upper" and "lower" are used for reference.

[0048] (1) Overall structure

[0049] The scroll compressor 10 is a device that compresses a refrigerant in a refrigeration apparatus including a refrigeration cycle that circulates the refrigerant. The scroll compressor 10 is mounted, for example, on an outdoor unit of an air conditioner, and constitutes a part of a refrigerant circuit of the air conditioner. The scroll compressor 10 sucks refrigerant, compresses the sucked refrigerant, and discharges it. The refrigerant is, for example, R32 of the HFC refrigerant. In addition, R32 is merely an example of the type of refrigerant, and the refrigerant to be compressed by the scroll com...

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Abstract

In a scroll compressor of a symmetric wrap configuration, a fixed scroll has a fixed side flat plate and a fixed side wrap (22). The movable scroll has a movable-side flat plate and a movable-side wrap (32). The first compression chamber (A) is formed by the surface of the fixed-side flat plate, the surface of the movable-side flat plate, the inner peripheral surface (22b) of the fixed-side wrap, and the outer peripheral surface (32a) of the movable-side wrap. The second compression chamber (B) is formed by the surface of the fixed-side flat plate, the surface of the movable-side flat plate, the outer peripheral surface (22a) of the fixed-side wrap, and the inner peripheral surface (32b) of the movable-side wrap. A first passage (41) is formed in the fixed scroll, and a second passage (42) is formed in the movable scroll. A gas refrigerant that has passed through the first passage (41) and a gas refrigerant that has passed through the second passage (42) flow through the first compression chamber (A). A gaseous refrigerant that has passed through the first passage (41) flows in the second compression chamber (B).

Description

technical field [0001] The present invention relates to scroll compressors. Background technique [0002] Patent Document 1 (JP-A-2018-9537) discloses a scroll compressor having a low-pressure shell type symmetrical scroll structure. In this compressor, the scroll bodies (wraps) of the two scrolls have a symmetrical scroll shape. Furthermore, the gas refrigerant sucked into the compressor is sucked into the first refrigerant inlet formed by the two scrolls through the first refrigerant inlet on the side of the suction pipe and the second refrigerant inlet on the opposite side across the rotation axis. The suction chamber and the second suction chamber are compressed. The two refrigerant inlets are formed in the frame that fixes the fixed scroll to the airtight container (casing). Contents of the invention [0003] The problem to be solved by the invention [0004] In the scroll compressor described above, the sucked gas refrigerant flows upward through the two refriger...

Claims

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Application Information

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IPC IPC(8): F04C18/02
CPCF04C18/0215F04C18/0292F04C18/0246F04C18/0261F04C29/12F04C18/0223F04C29/02F04C2240/30F04C2240/60
Inventor 山田壮宏
Owner DAIKIN IND LTD