Resistance adjusting type heater

Details Resistance adjusting type heater Resistance adjusting type heater

1992-02-28

1993-04-13

Reynolds, Bruce A.

Electric heating

Heating devices

With heating unit structure

219205, 392488, 428116, 60300, 422174, 55DIG30, H05B 310, F01N 310, B01D 5336

Patent

active

052025470

ABSTRACT:
A resistance adjusting type heater has a honeycomb structure having a large number of passages, at least two electrodes to enable electrical heating of the honeycomb structure provided on the honeycomb structure, and a resistance adjusting means, a slit, provided between the electrodes. The thicknesses of passage walls at the portions of the honeycomb structure at which electricity flows at a very high density are increased with a conductive material to prevent the abnormal heat generation at the portions of the honeycomb structure.

REFERENCES:
patent: 4717813 (1988-01-01), Berg et al.
patent: 5063029 (1991-11-01), Mizuno et al.

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