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Title: 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:
 [1]
  1. Rockville, MD
Publication Date:
Research Org.:
ADIABATICS INC
OSTI Identifier:
867093
Patent Number(s):
US 4862837
Assignee:
Defense Research Technologies, Inc. (Rockville, MD)
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 = {},
url = {https://www.osti.gov/biblio/867093}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

Patent:

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