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A compressor and method for welding a fluid tubing to a compressor housing and fluid-transporting tubing

A technology for fluid transportation and compressors, which is applied in the field of compressors and can solve practical problems and other problems

Inactive Publication Date: 2007-12-05
WHIRPOOL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While this solution achieves a tight connection, it also presents a practicality problem, since the pipe measurement tolerances should be adequately controlled to prevent gas leakage

Method used

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  • A compressor and method for welding a fluid tubing to a compressor housing and fluid-transporting tubing
  • A compressor and method for welding a fluid tubing to a compressor housing and fluid-transporting tubing

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Embodiment Construction

[0022] In Fig. 1 it can be seen that, according to the prior art, a tube union of a fluid-passer (or fluid-passing pipe) made of copper is applied to a closed on the steel casing of the compressor. In this configuration, the pipe 1 is connected to a cylindrical connection 2 made of carbon steel by means of induction welding or flame brazing in a furnace. The assembly formed by the pipe 1 and the cylindrical connection 2 after the brazing operation is then connected on the outside to the steel casing 4 of the compressor (not shown) by means of electric resistance welding.

[0023] It can be seen in FIG. 2 that according to the teaching of the present invention, in order to achieve the desired purpose, by only welding the fluid delivery pipe 9 to the compressor shell 5, so as to save the use of brazing and cylindrical connectors 2 .

[0024] Figure 3 shows the steps of the welding method, comprising phases I to V, with the following actions: In phase I, the metal surfaces are ...

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Abstract

The present invention relates to a compressor, a method for welding the fluid pipeline to the compressor outer casing and a fluid conveyer tube especially for the hermetic compressor, which substitutes the brass welding process, and directly sold the fluid circulation pipeline to the compressor outer casing. The hermetic compressor includes an outer shell (5) and a fluid conveyer tube (9), the fluid conveyer tube traverses the outer shell (5) through the channel hole (10), the fluid conveyer tube (9) includes a weldable connecting mechanism (11), the weldable connecting mechanism (11) is composed of a diameter broadening part of the fluid conveyer tube (9), the diameter broadening part is provided with a diameter which is bigger than the diameter of the channel hole (10), and is constructed along the length, and the weldable connecting device (11) is straightly soldered near the boundary (12') of the channel orifice (10). The present invention also describes a method for welding the fluid pipeline to the compressor outer casing and a fluid conveyer tube especially for the hermetic compressor.

Description

technical field [0001] The present invention relates to a compressor, a method of welding a fluid through pipe to a compressor casing, and a fluid delivery pipe especially suitable for a hermetic compressor, thereby replacing the brazing step and providing a method for welding the fluid through the pipe Direct welding (direct welding) to the compressor shell. Background technique [0002] The hermetic compressors for the cooling system are housed in steel casings and sealed by welding. The connecting pipes through the housing for the circulation of cooling gas and lubricating oil should also guarantee the hermeticity of the assembly while maintaining mechanical properties suitable for its application. Currently, the connection of copper fluid-passers can be achieved by mechanical fastening or by soldering. [0003] Brazing is one of the most common methods used to join copper fittings to the steel casing of hermetic compressors. The connections are also called fluid flow ...

Claims

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Application Information

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IPC IPC(8): F04B39/12F04C29/12F16L13/12F16L41/08B23K11/00B23K11/24
CPCF16L5/022F16L41/082Y10T137/85978B23K11/20F04B39/123F04C23/008B23K11/002B23K2203/22F04C2240/806B23K2103/22B23K11/00F16L5/02F16L41/08F04B39/12
Inventor A·J·西尔维拉
Owner WHIRPOOL SA
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