The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2022
Filed:
May. 05, 2020
Denso Thermal Systems S.p.a., Poirino, IT;
Daniele Baseggio, Poirino, IT;
Ilario Grosso, Poirino, IT;
Luca Bergamo, Poirino, IT;
Annunziata Bruna Lorusso, Poirino, IT;
DENSO THERMAL SYSTEMS S.P.A., Poirino, IT;
Abstract
A positive temperature coefficient electric heater for a vehicle includes a support part, a control circuitry, and a first and a second radiating layers overlapping one another, each radiating layer having a plurality of heating rods extending from the support part and connected in parallel to the control circuitry. Each radiating layer has a first layer sector and a second layer sector controlled independently of one another. The radiating layers may be controlled independently of one another. In the first radiating layer, the second section of the heating rods is capable of generating greater thermal power than the first section of the heating rods and, in the second radiating layer, the first section of the heating rods is capable of generating greater thermal power than the second section of the heating rods.