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Device for preventing vacuum in vortex type compressor

A scroll compressor and vacuum technology, applied in the field of compressors, can solve problems such as reduced valve action, and achieve the effect of improving performance

Inactive Publication Date: 2005-06-15
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above structure, when the pressure of the exhaust gas rises, the gas on the high pressure side presses the valve in the vertical direction of the valve movement, so that the action of the valve is significantly reduced.

Method used

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  • Device for preventing vacuum in vortex type compressor
  • Device for preventing vacuum in vortex type compressor
  • Device for preventing vacuum in vortex type compressor

Examples

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Effect test

Embodiment Construction

[0052] Embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0053] Figure 5 to Figure 8 A drawing showing a vacuum preventing device for a scroll compressor in the present invention. Figure 5 A longitudinal section showing the structure of the vacuum prevention device. Figure 7 and Figure 8 Each tip shows a side view of a valve of a different shape.

[0054] As shown in the figure, a vacuum preventing device (40) is provided inside the fixed scroll (7).

[0055] In the valve chamber (41) of the above-mentioned vacuum prevention device (40), the valve (42) is elastically arranged in it by a spring (43).

[0056] In the drawings, 44 is a low-pressure chamber, 45 is a medium-pressure chamber (intermediate pressure chamber), and 46 is a high-pressure branch flow path. (see figure 2 , 3 )

[0057] Inside the scroll compressor, a valve (42) is set in the valve chamber (41) formed in the fixed scroll (7), and a...

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Abstract

The invention belongs to the field of compressor technology, and relates to a vacuum prevention device of scroll compressor. It is characterized by that in the interior of scroll compressor of said invention the valve chamber formed in its scroll stator is equipped with a valve, said valve can be acted according to the sensed speed and pressure of sucked medium. Said invention can utilize said valve to open and close the high-pressure by-pass flow pathway communicated with high-pressure side and low-pressure side, and on the middle of upper surface of sid valve several recessed grooves are set, so that the leaked gas can be passed through said several recessed grooves, at the same time can be expanded, and its leakage flow quantity can be reduced so as to raise the performance of the compressor.

Description

technical field [0001] The invention belongs to the technical field of compressors and relates to a vacuum prevention device for scroll compressors, in particular, more than one groove is formed in the middle of the valves for opening and closing the high-pressure side and low-pressure side flow paths of scroll compressors, so that the The invention of the vacuum prevention device for the scroll compressor that reduces the leakage flow while dispersing the force applied to the valve by the high-pressure gas in the circumferential direction to smooth its operation. Background technique [0002] In general, a low-pressure type scroll compressor has a characteristic structure with almost no leakage, so that the low-pressure chamber formed with the motor part and the terminal part of the external power supply operates in a vacuum state in some special cases. In this case, vacuum discharges occur at the less robust end regions of the insulating film and lead to damage to the comp...

Claims

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Application Information

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IPC IPC(8): F04C18/02
Inventor 金秀哲
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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