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

1999-09-28

Woo, Jay H.

Gas separation

Combined or convertible

553853, 55DIG28, 55DIG30, B01D 2962

Patent

active

059580950

ABSTRACT:
Thin plate-like electric heaters are disposed among multi-layer cylindrical filters for capturing particulates in positions without contacting with the filters. As the means for more reducing the power supply to the heater as the position of the heater is closer to the central cylinder of the multi-layer filters, the thicknesses of the thin plate-like electric heaters or the geometrical patterns of the electric conduction paths are changed to thereby set the resistance values of the heaters in advance in order to reduce the temperature of the central-side cylinder which is apt to be high to thereby realize the balance with the temperature of the outer-circumferential cylinder, or the electric conduction quantity to the heaters is selectively more reduced as the position of the heater is closer to the central cylinder to realize the balance of temperature distribution with the filter on the outer-circumferential side filter.

REFERENCES:
patent: 5551971 (1996-09-01), Chadderton et al.
patent: 5620490 (1997-04-01), Kawamura
patent: 5651248 (1997-07-01), Kawamura
patent: 5651250 (1997-07-01), Kawamura
patent: 5709722 (1998-01-01), Nagai et al.
patent: 5780811 (1998-07-01), Kawamura
patent: 5782941 (1998-07-01), Matsunuma et al.

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