Flow proportioning mixer for gaseous fuel and air and internal combustion engine gas fuel mixer system
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United States of America Patent
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Sep 21, 1993
Issued Date -
N/A
app pub date -
Jul 3, 1991
filing date -
Jul 3, 1991
priority date (Note) -
Expired
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Abstract
A flow proportioning mixer is provided for mixing gaseous fuel and air, the mixer having therein a gas chamber adapted to discharge the gaseous fuel to a mixing channel, an air chamber adapted to direct the air into the mixing channel to mix with the fuel, a plunger reciprocally mounted in the mixing channel to define an annular passage in the channel, a pressure regulator for maintaining the pressure of the gas in the gas chamber and the air in the air chamber at a selected ratio, and a motor responsive to an engine exhaust content sensor to move the plunger in the mixing channel.
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