Heat exchanger with helically coiled conduct in casing
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United States of America Patent
Stats
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Jan 23, 1990
Grant Date -
N/A
app pub date -
Nov 20, 1986
filing date -
Mar 22, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A compact highly efficient heat exchanger is used to utilize waste heat from a motor vehicle engine cooling system to heat a source of water for use with a shower or the like in a recreational environment. The heat exchanger comprises a hollow cylinder having a cylindrical wall to define an annular space therebetween. Within the annular space is located a neatly fitting helical tubular coil with spaced helixes to define a helical pathway between adjacent coil helixes working fluid passes through the tubular coil and process fluid passes through the helical pathway to effect heat exchange between the working and process fluids.
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