This invention relates to techniques used for controlling fugitive gases used as {TAIL ~ a supplemental fuel source} for an engine and, more particularly, to techniques used to control {HEAD ~ engine speed} when the supply of fugitive gases varies in composition and flow and where the engine may be other than an ordinary aspirated engine 
This invention relates to techniques used for controlling fugitive gases used as { TAIL ~ a supplemental fuel source } for an engine and , more particularly , to techniques used to control { HEAD ~ engine speed } when the supply of fugitive gases varies in composition and flow and where the engine may be other than an ordinary aspirated engine
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH