Multi-gaseous fuel control device for a combustion engine with a carburetor
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United States of America Patent
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Jul 8, 2008
Grant Date -
Oct 26, 2006
app pub date -
Apr 11, 2006
filing date -
Apr 21, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fuel control device for a combustion engine capable of running on any one of a plurality of fuels has a fuel selection module with a plurality of fuel type settings for selecting a specific fuel type whereupon the fuel control device controls the outlet pressure of the chosen fuel to a desired fuel pressure corresponding to the calorific properties of the chosen fuel. The fuel selection module preferably operates a plurality of fuel flow circuits each designated for a specific fuel type, and each having a biased closed inlet valve and a biased closed outlet valve. Located preferably between each inlet and outlet valve is a pressure regulator designated for the specific fuel type and controlling the outlet fuel pressure. The device preferably includes a fuel metering apparatus and a shutoff valve that communicate with, and control in part, fuel flow through the fuel flow circuits.
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