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Refrigerant compressor

a compressor and refrigerant technology, applied in the direction of pump components, positive displacement liquid engines, liquid fuel engine components, etc., can solve the problems of increasing the manufacturing cost of the muffler insignificantly or not at all, achieving partly substantial noise muffling, and improving thermal isolation. , the effect of excellent isolation

Inactive Publication Date: 2005-01-06
SECOP GMBH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention is about reducing the thermal influence of suction gas in a refrigerant compressor by using a foamed plastic material for the housing of the muffler. This helps to keep the gas in the muffler cool and prevents heat transfer to the environment. The use of foamed plastic also improves the efficiency of the compressor and provides noise muffling. Additionally, the connection between the muffler and the compressor can also be made of foamed plastic to further isolate the gas. The foamed plastic used should have small cells, preferably 5 to 50 μm, to achieve high mechanical strength while maintaining the dimensions of the muffler walls."

Problems solved by technology

Of course, also a foamed plastic does not give perfect thermal isolation, that is, heat will still be able to flow through the outer wall.
Making at least one outer wall of a foamed plastic will only increase the manufacturing costs of the muffler insignificantly or not at all.
Additionally, a partly substantial noise muffling is achieved.
It is assumed that the gas bubbles contained in the foamed plastic obstruct a noise penetration.

Method used

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  • Refrigerant compressor
  • Refrigerant compressor

Examples

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Embodiment Construction

[0019]FIG. 1 shows a refrigerant compressor 1 with a motor 2, which drives a compressor 3. The motor 2 has a stator 4 and a rotor 5. The rotor 5 is connected with a shaft 6, which drives a piston 8 in a cylinder 9 via a crankshaft drive 7. The cylinder 9 is closed by a cylinder head 10, in which, in a manner known per se, valves are located, which control the filling of a compression chamber in the cylinder 9 with refrigerant gas, or the discharge of the refrigerant gas from the compression chamber, respectively.

[0020] The parts mentioned are enclosed in a case 11, which encloses the motor 2 and the compressor 3 hermetically. The outside of the case is provided with an electronic connection device 12, if required with a control, which controls the operation of the motor 2 in dependence of predetermined values, for example the refrigeration requirement of a refrigerator, not shown in detail. The device 12 is connected with the motor 2 via lines 13 guided through the case.

[0021] Ref...

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Abstract

The invention concerns a refrigerant compressor with a motor, a compressor driven by the motor, and a muffling device having at least one muffler with a housing. It is endeavoured to reduce the thermal influence of suction gas in the refrigerant compressor. For this purpose, it is ensured that the housing has at least one outer wall, which is made of a foamed plastic.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is entitled to the benefit of and incorporates by reference essential subject matter disclosed in German Patent Application No. 103 23 527.2 filed on May 24, 2003. FIELD OF THE INVENTION [0002] The invention concerns a refrigerant compressor with a motor, a compressor driven by the motor, and a muffling device having at least one muffler with a housing. BACKGROUND OF THE INVENTION [0003] Such a refrigerant compressor is, for example, known from DE 195 16 811 C2. Here, the motor and the compressor are located in a case together with a suction muffler. That is, a hermetically enclosed refrigerant compressor is concerned, which has proved its value for several years. [0004] With such compressors, the refrigerant gas coming from the evaporator is sucked in, compressed in the compressor, which increases the temperature of the refrigerant gas, and then discharged by a discharge nozzle, which in many cases communicates with a ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F04B39/00
CPCF04B39/0072
Inventor BJERRE, PREBENIVERSEN, FRANK HOLM
Owner SECOP GMBH
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