Diesel particulate oxidizer regeneration system

Details Diesel particulate oxidizer regeneration system Diesel particulate oxidizer regeneration system

1985-03-29

1988-01-19

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

60278, F01N 302

Patent

active

047197510

ABSTRACT:
A particulate oxidizer system for a diesel engine comprises a diesel particulate oxidizer (DPO) in the exhaust line to collect and burn particulates in the exhaust. The DPO comprises ceramic foam with a catalyst. When the quantity of particulates in the DPO reaches a predetermined value, high temperature gas containing oxygen is fed to the DPO to burn off (regenerate) the collected particulates. This is achieved by retard control of the injection timing under control of an engine control unit (ECU). A regeneration timing detection means detects the regeneration timing in the DPO. When the quantity of particulates in the DPO falls below a predetermined value, the ECU provides a signal to increase the idling revolution of the engine.

REFERENCES:
patent: 3918257 (1975-11-01), Hirose
patent: 4355621 (1982-10-01), Yasuhara
patent: 4452040 (1984-06-01), Kobashi
patent: 4492079 (1985-01-01), Takagi
patent: 4509327 (1985-04-01), Enga
patent: 4567725 (1986-02-01), Shinzawa

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