Double Pipe Heat Exchanger and Method of Manufacturing the Same
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United States of America Patent
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Issued Date -
Jun 19, 2008
app pub date -
Jan 21, 2005
filing date -
Jan 21, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A double pipe heat exchanger that can be produced easily and can be used as a part of piping by bending the whole body, wherein an inner pipe is configured so that: a plurality of balloon-shaped bulges communicating with one another and extending from the center toward the radial directions in a cross section orthogonal to the axis line thereof may be formed; the outer circumference of the bulges may be bent into the shape of waves in an axial cross section; and the top portions of the waves may touch the inner surface of an outer pipe. Then in the state, the whole body including the inner pipe and the outer pipe is bent by applying external force.
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