METERING DEVICE FOR A FUEL FEED CIRCUIT OF AN ENGINE
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United States of America Patent
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app pub date -
Mar 7, 2014
filing date -
Mar 12, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A metering device for an engine fuel feed circuit, the device including a metering valve, and a pressure regulator device maintaining a constant pressure difference from downstream to upstream across the metering valve, wherein the metering valve includes a seat provided with an inlet orifice and an outlet orifice, a shutter arranged within the seat, and an actuator controlling the position of the shutter, and wherein, between the inlet orifice and the outlet orifice the shutter defines a passage of minimum section that is variable as a function of the position of the shutter along a stroke extending between a bottom abutment and a top abutment and passing via a threshold position.
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