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Fumigation system for a diesel engine

  • US 7,225,763 B2
  • Filed: 04/06/2005
  • Issued: 06/05/2007
  • Est. Priority Date: 03/10/2004
  • Status: Expired due to Fees
First Claim
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1. A gaseous-fuel fumigation system for interconnection to a diesel engine, comprising:

  • a valve disposed in a flow path between a gaseous-fuel supply and an air intake stream of a diesel engine, the valve being operative to regulate a flow volume of a gaseous-fuel through the flow path;

    an oxygen sensor operative to generate a signal indicative of an oxygen content of an exhaust stream of the diesel engine;

    a controller operative to receive the signal from the oxygen sensor and adjust the valve to regulate the flow volume of the gaseous-fuel through the flow path to maintain a predetermined minimum oxygen content in the exhaust stream.

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