Regenerator for diesel particulate filter

Details Regenerator for diesel particulate filter Regenerator for diesel particulate filter

1984-07-12

1986-05-20

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

55283, 60289, 60290, 60311, F01N 302

Patent

active

045892547

ABSTRACT:
An apparatus for controlling the supply of air to a burner used to recombust diesel particulates trapped in a ceramic filter. The inventive control apparatus includes an exhaust bypass line that bypasses the filter, an air supply line leading to a burner associated with the filter, a flow control valve that adjusts the cross-sectional area for the air flow in the air supply line, a relief valve that maintains a constant difference between pressures at points upstream and downstream of the flow control valve, and a control unit that controls the degree of opening of the flow control valve. With the invention, precise control over the flow rate of secondary air is ensured.

REFERENCES:
patent: 4098078 (1978-07-01), Laurent
patent: 4404795 (1983-09-01), Oishi
patent: 4450682 (1984-05-01), Sato

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