Device for controlling a by-pass valve

Details Device for controlling a by-pass valve Device for controlling a by-pass valve

1992-04-23

1993-06-15

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

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

60294, 60303, 123323, F01N 302

Patent

active

052188183

ABSTRACT:
A device for regenerating a soot burn-off filter in an exhaust gas conduit of a diesel engine by means of a fuel/air mixture, part of which at least is ignited in the combustion space of at least one cylinder. The fuel/air mixture is guided out of the combustion space through a gas duct in the cylinder head, controlled by a by-pass valve, into the exhaust gas conduit upstream of the soot burn-off filter. The simple and low-cost device is suitable for reliable ignition of a soot burnoff filter located relatively far from the engine. The by-pass valve can be actuated by the driver in order to increase the engine braking power and can be driven into an open position by a control unit as a function of the parameters describing the regeneration phase.

REFERENCES:
patent: 4121552 (1978-10-01), Mithuo
patent: 4205639 (1980-06-01), Kawase
patent: 4380149 (1983-04-01), Ludelke
patent: 5113652 (1992-05-01), Baines

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