Fuel injection nozzle with auto-rotating tip

Fluid sprinkling – spraying – and diffusing – Distributor continuously moves relative to support during... – Reaction-type nozzle motive means

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Details

239426, B05B 306

Patent

active

045026351

ABSTRACT:
A nozzle for injecting fuel into a combustion zone including a stationary nozzle body having a main fuel passage therethrough connected to a source of fuel under pressure, an auto-rotating tip disposed on the nozzle body for rotation about a main axis of the latter, a fuel distribution cavity between the tip and the nozzle body connected to the main fuel passage and filled with pressurized fuel, and a plurality of fuel passages in the tip exposed to pressurized fuel in the distribution cavity. Each of the fuel passages is disposed in a plane perpendicular to the main axis and is slanted relative to one of a corresponding plurality of radii emanating from the main axis so that jets of fuel issuing from the fuel passages develop reaction forces on the tip having components tangent to a circle about the main axis which reaction forces spin the tip to disperse fuel in the combustion zone in a volume of revolution about the main axis.

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