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Scroll compressor

A technology of scroll compressors and compression mechanisms, which is applied in the direction of rotary piston machines, rotary piston pumps, mechanical equipment, etc., can solve the problems of damaging the reliability of compressors, achieve low cost, prevent lubricating oil from deteriorating, The effect of a simple structure

Inactive Publication Date: 2008-08-20
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the conventional compressor disclosed in the above-mentioned gazette has the problem that it takes a long time until the end of the pumping due to its structure that the drive motor is stopped when the exhaust gas temperature rises excessively.
Also, since the compressor starts and stops repeatedly, compressor reliability can be compromised

Method used

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Embodiment -

[0068] In the above embodiment, the structures of the valve member 55 and the spring member 57 may also be reversed. That is, a structure in which the valve member 55 is pressed against the sleeve 56 by the spring member 57 may also be used.

[0069] Furthermore, unlike the structure of the above-described embodiment, a valve member 55 may also be arranged on the recessed portion 52 of the end plate 22a to block the lubricating oil passage 51 . In this case, for example, one end portion of the valve member 55 may be coupled and fixed to the end plate 22a of the orbiting scroll 22. As shown in FIG. Furthermore, the bimetallic valve member 55 covers the lubricating oil passage 51 in a flat state, and on the other hand, can open the outflow end of the lubricating oil passage 51 in a curved state.

[0070] In addition, in the above-mentioned embodiments, the valve member 55 is not limited to being made of a bimetal, for example, it may be made of a shape memory alloy.

[0071] I...

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PUM

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Abstract

The invention relates to a scroll compressor, in particular to a scroll compressor capable of preventing the poor lubrication caused by the excessively high air temperature. The scroll compressor can still work in a normal way, even if the air temperature rises up slightly, the bad lubrication is avoided. The lubrication oil stored inside a housing 11 can be supplied to a compressing structure 15 by an oil supplying channel 49. A lubrication oil channel 51 communicated with the oil supplying channel 49 and opened near the central end of a vortex ring 22b is arranged on the end-plate 22a on the rotary vortex plate 22. A valve component 55 made of bimetallic and a spring component for pressing the valve component 55 on the lubrication oil channel 51 are arranged in the lubrication oil channel 51. Under the condition of evacuation operation and others, when the air temperature is excessively high, the valve component 55 is deformed, allowing the lubrication oil to flow into a compressing chamber 37. The vortex compressor of the invention is used in the compressor of compressing refrigerant.

Description

technical field [0001] The present invention relates to a scroll compressor, in particular to a scroll compressor in which measures are taken to prevent poor lubrication caused by excessive discharge temperature. Background technique [0002] Conventionally, a scroll compressor has been used as a compressor for compressing refrigerant gas in a refrigeration cycle. This type of scroll compressor has a fixed scroll and an orbiting scroll within a casing. The two scrolls respectively have an end plate, and a spiral scroll ring protruding from the end plate. The fixed scroll is fixed on the casing, and the orbiting scroll is connected to the eccentric part of the drive shaft and can revolve. The orbiting scroll does not rotate but only revolves while the scroll of the orbiting scroll meshes with the scroll of the fixed scroll. In this way, the compression chamber formed between the two scrolls can be continuously reduced to compress the gas in the compression chamber. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C29/02F04C18/02F04C18/04
CPCF04C2270/19F04C18/0215F04C29/02
Inventor 上川隆司
Owner DAIKIN IND LTD