Fuel injection of coal slurry using vortex nozzles and valves
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.
- Inventors:
-
- Rockville, MD
- Issue Date:
- Research Org.:
- ADIABATICS INC
- OSTI Identifier:
- 867093
- Patent Number(s):
- 4862837
- Assignee:
- Defense Research Technologies, Inc. (Rockville, MD)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
- DOE Contract Number:
- AC21-86MC23006
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- fuel; injection; coal; slurry; vortex; nozzles; valves; atomized; engine; combustion; chamber; achieved; relatively; pressures; means; swirl; nozzle; outlet; considerably; larger; conventional; outlets; eliminating; major; sources; failure; due; clogging; contaminants; control; fluid; air; impart; vorticity; purge; times; measured; charges; produced; diaphragm; pump; controlled; separate; fluidic; circuitry; employing; alternatively; block; pass; cool; flow; disclosed; control fluid; nozzle outlet; combustion chamber; fuel injection; coal slurry; slurry fuel; fuel flow; vortex nozzle; slurry charge; rate control; failure due; engine combustion; valves control; pass cool; /123/239/
Citation Formats
Holmes, Allen B. Fuel injection of coal slurry using vortex nozzles and valves. United States: N. p., 1989.
Web.
Holmes, Allen B. Fuel injection of coal slurry using vortex nozzles and valves. United States.
Holmes, Allen B. Sun .
"Fuel injection of coal slurry using vortex nozzles and valves". United States. https://www.osti.gov/servlets/purl/867093.
@article{osti_867093,
title = {Fuel injection of coal slurry using vortex nozzles and valves},
author = {Holmes, Allen B},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}
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