Regenerative heater of diesel engine particulate trap and diesel

Details Regenerative heater of diesel engine particulate trap and diesel Regenerative heater of diesel engine particulate trap and diesel

1997-10-22

2000-02-22

Walberg, Teresa

Electric heating

Heating devices

With heating unit structure

219532, 219552, 338208, H05B 302, H01C 300

Patent

active

060282967

ABSTRACT:
A meshed plate-like heater is disposed between multi-layer cylindrical filters without contacting with the filters to constitute a DPF. The heater has a form in which strip-like electric conduction paths are arranged and developed side by side horizontally, and then made cylindrical such that the different electric resistances are set for the inlet portion, the outlet portion and the center portion so as to constitute a DPF for regenerating particulates. The regenerative heater realizes a uniform temperature distribution all over the regenerative heater within a range of from about 600.degree. C. which is the self-burning temperature of the particulates to 1,000.degree. C. which is the heat-resistance temperature of the filters, in 10 minutes after the start of regeneration.

REFERENCES:
patent: 2838639 (1958-06-01), Planer
patent: 4662911 (1987-05-01), Hirayama et al.
patent: 5014511 (1991-05-01), Wade et al.
patent: 5409669 (1995-04-01), Smith et al.

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