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Tubular element

Inactive Publication Date: 2010-12-16
HAIER US APPLIANCE SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because such elements and steps are well known in the art, and because they do not facilitate a better understanding of the present invention, a discussion of such elements and steps is not provided herein.

Method used

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  • Tubular element
  • Tubular element
  • Tubular element

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Experimental program
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exemplary embodiment 200

[0021]FIG. 4 is a cross-sectional view of a second exemplary embodiment 200 of the tube element in accordance with the invention, wherein a protective sleeve such as a sheath 140 is used. In FIG. 4, the sheath 140 is shown as surrounding and in direct contact with the wall 120. The sheath 140 can be spaced apart from the wall 120 so that there is an annular gap between the sheath 140 and the wall 120. In this later configuration, however, a thermally conductive fluid is used to fill up such a gap. This sheath 140 is used to contain the refrigerant in the event of a leak. The sheath 140 allows the cooling system to receive a higher classification with respect to U.L. codes. The sheath 140 is preferably made of a metal, such as aluminum.

exemplary embodiment 300

[0022]FIG. 5 is a cross-sectional view of a third exemplary embodiment 300 of the tube element in accordance with the invention, wherein the wall 120′ of the tube element 300 has a non-circular shaped cross section such as a generally D-shaped cross section. The D-shaped wall 120′ may facilitate the installation of the tube element 300 as the flat surface thereof may be used for attachment to a flat support surface.

[0023]It would be recognized by those skilled in the art that the wall of tube element 100, 200, 300 may also be formed in other shapes, such as oval, rectangular, square, to increase the heat exchange surface.

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Abstract

A tubular element including a wall defining therein an inner cavity, and a plurality of microchannels supported by the wall and extending along a length of the wall.

Description

BACKGROUND OF THE INVENTION[0001]The embodiments of the invention relate generally to a tubular element. More specifically, the embodiments relate to a tubular element for a sealed refrigeration system of a refrigerator.[0002]Recent and continuing environmental objectives and directives require the use of more environmentally friendly materials as refrigerants. For example, refrigerants have been changed from Freon to R-134a, and more recently from R-134a to R-600a (i.e., Isobutane). The compositions of refrigerants R-134a and R-600a are well known in the art and therefore are not discussed here.[0003]Different refrigerants have different operating characteristics and the formulation of the newer refrigerants requires significant cost in their development, deployment and subsequent disposal. Thus, reduction of the amount of refrigerant, whether R-134a or R-600a, is a desired feature. For instance, R-600a refrigerators produced for sale in countries that follow the ISO codes can use ...

Claims

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Application Information

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IPC IPC(8): F25D23/00
CPCF16K99/0001F16K99/0036F25B39/00F25D23/00F28D1/0477F28D7/0041F28F1/022
Inventor JUNGE, BRENT ALDENDEVOS, RICHARDBROWN, JR., WILLIAM ARNOLD
Owner HAIER US APPLIANCE SOLUTIONS INC