metering jet

metering jet

metering jet
A precisely calibrated orifice in any fluid-flow system used to control the amount of fluid flow for a given pressure drop across a jet. These are widely used in engine fuel systems.
References in periodicals archive ?
The main metering jet for the plane's carburettor had come loose, increasing the fuel flow and choking off power," said the report by America's National Transportation Safety Board.
Contaminated oil enters the unit through a small metering jet under pressure supplied by the unit's oil pump.