Fuel injection of coal slurry using vortex nozzles and valves

Details Fuel injection of coal slurry using vortex nozzles and valves Fuel injection of coal slurry using vortex nozzles and valves

1988-04-21

1989-09-05

Kamen, Noah P.

Internal-combustion engines

Solid fuel

239406, 239414, F02D 1904

Patent

active

048628379

ABSTRACT:
Injection of atomized coal slurry fuel into an engine combustion chamber is achieved at relatively low pressures by means of a vortex swirl nozzle. The outlet opening of the vortex nozzle is considerably larger than conventional nozzle outlets, thereby eliminating major sources of failure due to clogging by contaminants in the fuel. Control fluid, such as air, may be used to impart vorticity to the slurry and/or purge the nozzle of contaminants during the times between measured slurry charges. The measured slurry charges may be produced by a diaphragm pump or by vortex valves controlled by a separate control fluid. Fluidic circuitry, employing vortex valves to alternatively block and pass cool slurry fuel flow, is disclosed.

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