David P Lemaster

US Patent:

20130270257, Oct 17, 2013

Filed:

Jun 6, 2011

Appl. No.:

13/701728

Inventors:

Debabrata Sarkar - Rochester MI, US
Walter Thomas Symons - Grand Blanc MI, US
Eric P. Clyde - Metamora MI, US
David E. Lemaster - White Lake MI, US
Gerardo I. Hernandez - Torreon, MX

Assignee:

DELPHI TECHNOLOGIES, INC. - TROY MI

International Classification:

H05B 1/00

US Classification:

219553

Abstract:

A planar device includes a heating circuit that is disposed between ceramic layers in a planar device and co-fired with the ceramic. The heating circuit material and geometry are controlled so as to provide a targeted resistance characteristic as a function of temperature that allows interchangeability in an engine management system that was designed for a heater circuit based on a material system that cannot be co-fired with the planar device.