Supplementary automobile duct heater
AssigneeGeneral Motors Corporation
InventorsJohn B. Fresch, Thomas P. Warszawski
Life of this patent
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Abstract
A supplementary passenger compartment heating assembly for use in conjunction with an automobile HVAC system having a forced air duct opening to the compartment includes a generally rectangular cross section air distribution duct molded integrally with the forced air duct from a heat conductive PTC polymer material. The air distribution duct has a pair of sides separated by a plurality of ribs extending therebetween so as to provide increased heat transfer area to the air forced therethrough.
Claims1
A supplementary passenger compartment heating assembly for an automobile having an electrical power source and a forced air duct opening to said compartment, comprising,
- a generally rectangular air distribution duct molded integrally with said forced air duct from a heat conductive PTC polymer material, said air distribution duct having a pair of sides separated by a plurality of ribs extending between said sides so as to provide increased heat transfer area to air forced therethrough, and,
- means selectively connecting said electrical power source to said air distribution duct,
- whereby air is both communicated to said compartment by said distribution duct and heated in supplementary fashion.
Dependencies are inferred from the claim text.