HEATER FOR FLUIDS
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United States of America Patent
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Issued Date -
Dec 31, 2009
app pub date -
Dec 22, 2008
filing date -
Dec 20, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
To improve environmental protection from hydrocarbon emissions particularly from vehicles a heater for fluids comprising heating elements of an electrically conductive monolith, wherein the heater comprises a passageway for the fluid to be heated with a defined flow direction of the fluid during heating operation, the heater comprising at least two heating elements arranged side by side inside the passageway, so that they are arranged in parallel with respect to the fluid flow, is proposed improved in that one of the at least two heating elements is a controlled heating element, which has a slightly larger heating power, and a temperature sensor is provided at or close to the downstream end of the controlled heating element, and wherein the temperature sensor is connected to a control means for temperature control during heating operation of the heater; and a method of operating such
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