Heating unit
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United States of America Patent
Stats
-
Apr 8, 2008
Grant Date -
Feb 1, 2007
app pub date -
Jul 28, 2006
filing date -
Jul 28, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A heating unit for a vehicle features a radial fan (100) having a housing (110), which housing has an air inlet (116) and an air exit opening (118). The heating unit has an air-directing device (140) that guides an air flow in a pressure chamber (115) of the housing (110) to the exit opening (118). Arranged in the housing (110) is a radial fan wheel (130) that serves to generate a flow from the air inlet (116) via the pressure chamber (115) to the air exit opening (118). Also provided is an electrical heating element, e.g. a PTC (Positive Temperature Coefficient) heating element (125), that serves to transfer heat to the air flow generated by the fan. Air-directing elements (632, 634, 636, 638) are provided between the exit opening (118) and the heating element (125), in order to generate an air flow having a more uniform (680) velocity distribution.
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Family
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