Motor vehicle heating device comprising an additional heater
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United States of America Patent
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Issued Date -
Apr 12, 2007
app pub date -
Sep 15, 2004
filing date -
Oct 27, 2003
priority date (Note) -
Abandoned
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Abstract
The invention relates to a heating device of a motor vehicle comprising an internal combustion engine (2) and a vehicle interior. Said heating device encompasses a cooling circuit (1) for cooling the internal combustion engine (2), a heating circuit (6) that is provided with at least one heating element (7) and is used for heating the vehicle interior, and an additional electric heater, especially an auxiliary PTC heating unit (8). According to the invention, a heat source can be connected to the cooling circuit and/or the heating circuit (6) as a second supplementary heater (9).
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