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Automotive Engineering Commons

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Michigan Tech Patents

1990

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Full-Text Articles in Automotive Engineering

Method And Apparatus For Sensing The Regeneration Of A Diesel Engine Particulate Trap, John H. Johnson, Peter V. Woon Jul 1990

Method And Apparatus For Sensing The Regeneration Of A Diesel Engine Particulate Trap, John H. Johnson, Peter V. Woon

Michigan Tech Patents

A diesel engine exhaust system is provided with a particulate trap for collecting the products of incomplete combustion during the engine power cycle. A sensing mechanism including an electrode downstream of the trap and a signal generating circuit provides a positive indication of occurrence of regeneration of the trap. Charged particles generated during regeneration induce a charge of the electrode, that charge activates the signal generating circuit and it, in turn, produces an indication external of the exhaust system that trap regeneration is occurring. That indication can be in the operator’s compartment.