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Electric heating device comprising a plurality of heating elements

  • US 6,940,050 B2
  • Filed: 10/29/2003
  • Issued: 09/06/2005
  • Est. Priority Date: 10/30/2002
  • Status: Expired due to Fees
First Claim
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1. An electric heating device used as an auxiliary heating for motor vehicles comprising:

  • a plurality of heating elements, which are combined so as to form a heating block, wherein each of said heating elements is controlled separately to heat a particular portion of a total air flow to be heated, the remaining portion of the total air flow being heated only by the remaining heating element; and

    a control device which controls the heating power of each of the heating elements, the heating power for each of said heating elements being separately adjustable, wherein the control changes an allocation of the heating power to each of the heating elements at predetermined time intervals.

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