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Scroll refrigeration compressor

A refrigeration compressor and scroll technology, used in rotary piston machinery, rotary piston pumps, rotary piston/oscillating piston pump components, etc., can solve the discharge valve loss, chatter, compressor reliability leakage and other problems, to achieve the effect of reducing manufacturing costs, improving performance, and being easy to disassemble

Active Publication Date: 2013-06-05
DANFOSS COMML COMPRESSORS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when the high-pressure refrigerant returns to the discharge check valve, the latter hits the valve seat violently, which can damage the seat and the discharge check valve, causing leakage that will affect the reliability of the compressor
[0010] Additionally, as a factor of compressor operating conditions, turbulent flow can occur aft of the discharge check valve, which can cause reciprocation of the discharge check valve, inherently causing premature wear and chatter of the discharge valve
[0011] In addition, when the compressor with such a discharge valve is a variable speed compressor, the low speed operation of the compressor can seriously affect the stability of the discharge check valve

Method used

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  • Scroll refrigeration compressor
  • Scroll refrigeration compressor

Examples

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Embodiment Construction

[0073] figure 1 A scroll refrigeration compressor in an upright position is described. However, the compressor according to the invention can also be in an inclined position or in a horizontal position without having to make major changes to its structure.

[0074] figure 1 The compressor shown comprises a hermetic casing 2 delimited by a shroud 3 with an end cap 4 at the upper end and a base 5 at the lower end, respectively. The assembly of the hermetic enclosure 2 can in particular be accomplished using welded joints.

[0075] The sealed casing 2 defines a low-pressure suction chamber 6 and a high-pressure discharge chamber 7 , which are separated by a compression stage 8 .

[0076] The hermetic casing 2 includes an introduction hole 9 appearing in the suction chamber 6 for bringing refrigerant into the compressor, and a discharge hole 11 appearing in the discharge chamber 7 for discharging the refrigerant out of the compressor. .

[0077] The compression stage 8 compri...

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PUM

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Abstract

The scroll refrigeration compressor according to the invention includes a sealed enclosure at least partially defining a discharge chamber designed to be connected to a discharge line, and a discharge valve attached on the sealed enclosure and fluidly connected to the discharge chamber. The discharge valve includes a valve body, a valve seat, and a discharge check valve movable between a covering position and a released position. The discharge valve includes deflection means positioned in the valve body and arranged to orient the flow of refrigerant coming from the discharge line at least partially toward the periphery of the discharge check valve.

Description

technical field [0001] This invention relates to scroll refrigeration compressors. Background technique [0002] Patent document US 7,721,757 discloses a scroll refrigeration compressor, which includes a sealed casing that defines a suction chamber and a discharge chamber separated by a compression stage, the compression stage includes a fixed volute and an orbiting scroll shell. The compressor also has a discharge valve affixed to the sealed housing and in fluid communication with the discharge chamber, the discharge valve comprising: [0003] - valve body, [0004] - valve seat, [0005] - a discharge check valve movable between a covered position, in which the discharge check valve rests against the valve seat, and a released position, in which the discharge check valve leaves the valve seat, [0006] - a return member for returning the discharge check valve to its covering position, and [0007] - A support provided in the valve body for supporting the return means ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/02F04C29/00
CPCF04C29/124F04C18/0207F04C23/008F04C29/126
Inventor 皮埃尔·吉尼斯多米尼克·格罗斯克里斯托佛·安塞尔伊夫·罗森菲利普·杜加斯特
Owner DANFOSS COMML COMPRESSORS