Line element

Abstract

Line element and method for forming a line element. The line element includes a fluid line, and a housing structured and arranged to surround the fluid line in a radially fluid-tight manner. An annular space is formed between the fluid line and the housing, which is filled at least in part with a compressible medium, and the fluid line has at least one opening inside the annular space.

Description

[0001] Cross References to Related Applications [0002] Pursuant to Title 35, United States Code, Section 119, this patent application claims priority to German Patent Application 102010045714.0, filed September 16, 2010, the disclosure of which is expressly incorporated herein by reference in its entirety. technical field [0003] The invention relates to a pipe with a fluid line and a housing. Background technique [0004] Pipes of this type are used, for example, in motor vehicles to convey engine coolant, or as so-called urea lines. For example, lines for supplying urea to help clean combustion engines are called urea lines. [0005] A problem in motor vehicles with fluid lines filled with liquid is that the fluid present in the lines can freeze, especially in winter, when the vehicle is parked for a longer period of time. For example, urea freezes at -11°C. [0006] Freezing of the liquid causes it to increase in volume, thus exerting a pressure load on the piping....

AI Technical Summary

Problems solved by technology

[0005] A problem with fluid lines filled with liquids in motor vehicles is that the fluid present in the lines can freeze, especially in winter, when the vehicle is parked for a longer period of time

However, the heating cannot be maintained for extended periods of time when the motor vehicle is parked

Therefore, solidification cannot be reliably prevented by heating

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