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1. (WO2017151965) HEATER ELEMENT HAVING TARGETED DECREASING TEMPERATURE RESISTANCE CHARACTERISTICS

Pub. No.:    WO/2017/151965    International Application No.:    PCT/US2017/020511
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Fri Mar 03 00:59:59 CET 2017
IPC: F01N 3/027
F01N 3/20
H05B 3/12
H01C 7/02
Applicants: WATLOW ELECTRIC MANUFACTURING COMPANY
Inventors: EVERLY, Mark, D.
OHSE, Jeremy
MARGAVIO, Patrick
ZHANG, Sanhong
Title: HEATER ELEMENT HAVING TARGETED DECREASING TEMPERATURE RESISTANCE CHARACTERISTICS
Abstract:
A heater is provided that includes at least one resistive heating element having a material with a non-monotonic resistivity vs. temperature profile and exhibiting a negative dR/dT characteristic over a predetermined operating temperature range along the profile. The heater can include a plurality of circuits disposed in a fluid path to heat fluid flow.