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Vortex compressor with variable volume

A scroll compressor, compressor technology, applied in the direction of rotary piston machinery, rotary piston pump, mechanical equipment, etc., can solve technical difficulties and other problems

Inactive Publication Date: 2003-04-09
DANFOSS MANEUROP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] This construction is technically difficult to realize in the case of scroll compressors, where the fixed scroll partly delimits the high-pressure region of the compressor, since the pipes carrying the control fluid pass through the casing of this high-pressure enclosed region

Method used

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  • Vortex compressor with variable volume
  • Vortex compressor with variable volume
  • Vortex compressor with variable volume

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 The compressor shown in includes a sealed casing 2 in which is mounted a body 3 supporting a compression section having a fixed scroll 4 and a movable scroll 5 . The movable scroll is driven to rotate by the shaft 6 of the motor 7, thereby defining a compression chamber 8 with the fixed scroll, and the volume of the compression chamber decreases toward the center of the scrolls 4, 5 during the rotational movement. Small. The compression chambers are filled approximately symmetrically and in pairs from the suction chambers located in the low-pressure region 9 of the compressor. The compressed gas leaves through the outlet pipe 10 and flows to the high-pressure chamber 12 through a gate valve not shown in the figure.

[0028] Because the purpose of the present invention is to adjust the capacity of the compressor to suit the required delivery power, by changing the working volume of the compression chambers, each of the two symmetrical compression chambers 8 is...

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PUM

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Abstract

In a compresor at least one bypass valve is arranged in a low-pressure zone inside a casing of the compressor. The bypass valve defines a chamber connected by a first duct to at least one compression pocket situated in the peripheral zone of the compression stage and by a second duct to low-pressure zone, the two ducts opening near one another so that they can be shut off by a shutter which can move in the chamber, being guided by the walls that delimit this chamber, a third duct intended for conveying a shutter-control fluid opening into the lower wall of the chamber of the valve. The shutter is opened by gravity when no control fluid is applied.

Description

technical field [0001] The present invention relates to a variable capacity scroll compressor. Background technique [0002] Refrigerant compressors are capable of supplying compressed refrigerant gas to the high pressure side of a device. In air conditioning units, refrigeration units, or heat pump units, the compressor can be cycled in bursts, with each injection lasting several minutes, several times an hour. The determination of the cycle time depends on the cooling requirement on the evaporator side and the external ambient temperature on the condenser side. The required mass flow rate of gaseous refrigerant varies according to these conditions. In particular, the displacement of the compressor needs to be adjusted according to the conditions that conventionally define the device. For this reason, it is possible to use several compressors in combination making it possible to meet this requirement by selecting a number of compressors to be operated. [0003] Another ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/02F04C23/00F04C28/26
CPCF04C28/26Y10S417/902F04C23/008F04C18/0215
Inventor C·安塞尔Y·罗森J·德贝尔纳迪
Owner DANFOSS MANEUROP