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Negative pressure regulating structure of vortex compressor

A technology for adjusting the structure of scroll compressors, applied in the field of scroll compressors, can solve problems such as oil leakage and component deformation, and achieve the effects of preventing excessive leakage and improving efficiency

Inactive Publication Date: 2008-11-12
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Problems causing leakage of oil accumulated in the negative pressure space
Moreover, due to excessive pressure differences, it is also easy to cause deformation of parts

Method used

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  • Negative pressure regulating structure of vortex compressor
  • Negative pressure regulating structure of vortex compressor
  • Negative pressure regulating structure of vortex compressor

Examples

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0029] Such as image 3 and Figure 4 As shown, the scroll compressor of the negative pressure adjustment structure of the present invention is formed by a lubricating oil passage 111 penetrating the inside of the drive shaft 110 in the axial direction; 112 ; the sliding sleeve 113 formed on the outside of the eccentric portion 112 ; formed on the upper side of the drive shaft 110 , the upper frame 120 supporting the drive shaft 110 and other components are formed.

[0030] A main bearing 108 is formed at a portion where the inner peripheral surface of the upper frame 120 contacts the outer peripheral surface of the drive shaft 110 . The central portion of the upper frame 120 is formed along the inner peripheral surface of the upper frame 120 to accommodate the lubricating oil rising through the lubricating oil passage 111 and a small amount o...

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Abstract

A negative pressure control device of vortex compressor comprises a negative pressure cavity formed on the side of the upper frame holding the fluid on the discharge side of the vortex compressor and the lubricating oil from the lubricating oil storage tank, a by-pass pipeline connecting the negative pressure cavity with the suction side of the vortex compressor and a negative pressure control part opening and closing selectively the by-pass pipeline. The invention can reduce pressure difference between inner part and outer part of the small negative cavity to prevent the lubricating oil overleaking from the negative cavity.

Description

technical field [0001] The invention relates to a scroll compressor, in particular, it can maintain the negative pressure supporting the lower side of the moving turbine inside the scroll compressor at a certain intermediate pressure, so as to prevent excessive friction between the moving turbine and the fixed turbine and the loss of lubricating oil. Negative pressure regulation structure of a leaking scroll compressor. Background technique [0002] Generally speaking, a compressor is a device that converts mechanical energy into compression energy. Compressors can be roughly divided into: reciprocating type, scroll type, center type, vane type and other types. Scroll compressors are widely used in air conditioners and refrigerators. [0003] Scroll compressors are divided into low-pressure scroll compressors and high-pressure scroll compressors, that is, scroll compressors are divided into low-pressure scroll compressors or high-pressure scroll compressors according to wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C29/02F04C18/02
Inventor 申东求金哲焕朴真成具仁会
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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