Device for controlling the flow rate of a fuel gas/air mixture and/or the ratio between fuel gas and air in a fuel gas/air mixture
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United States of America Patent
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Jan 31, 1989
Grant Date -
N/A
app pub date -
Mar 31, 1987
filing date -
Apr 9, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for controlling the flow rate of a fuel gas/air mixture, and/or the ratio between the fuel gas and air in such a mixture. The device includes a body having an air inlet, a fuel gas inlet, a fuel gas/air mixture outlet, a gas-control passage in the body, with the cross-sectional area of the gas-control passage being variable via a control device for controlling the flow of fuel gas through the device, and an adjustable air-control passage for adjusting the flow of air through the device. The air-control and gas-control passages are configured and disposed in the body in such a way that they cooperate to also form an area within the body where said controlled fuel gas and air flows are combined and mixed.
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