HEATER PARTICULARLY FOR A MOTOR VEHICLE HVAC SYSTEM
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United States of America Patent
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Issued Date -
Apr 21, 2011
app pub date -
Oct 20, 2010
filing date -
Oct 21, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A motor vehicle HVAC unit includes a housing, preferably a fan, preferably a coolant evaporator for cooling air to be supplied to the vehicle interior, at least two electric resistance heaters for heating the air to be supplied to the vehicle interior and at least one delay circuit, preferably two delay circuits. The at least two electric resistance heaters are suppliable with electric current, and a device is provided for supplying current to at least one of the at least two electric resistance heaters with a time delay relative to another electric resistance heater, and during the turning on or supplying current to the electric resistance heaters a small maximum current peak requirement is to occur at low technical expenditures.
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