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Title: Fuel injector system

Abstract

A fuel injection system particularly adapted for injecting coal slurry fuels at high pressures includes an accumulator-type fuel injector which utilizes high-pressure pilot fuel as a purging fluid to prevent hard particles in the fuel from impeding the opening and closing movement of a needle valve, and as a hydraulic medium to hold the needle valve in its closed position. A fluid passage in the injector delivers an appropriately small amount of the ignition-aiding pilot fuel to an appropriate region of a chamber in the injector's nozzle so that at the beginning of each injection interval the first stratum of fuel to be discharged consists essentially of pilot fuel and thereafter mostly slurry fuel is injected.

Inventors:
 [1];  [2]
  1. (Erie, PA)
  2. (Schenctady, NY)
Issue Date:
Research Org.:
GENERAL ELECTRIC CO
OSTI Identifier:
866765
Patent Number(s):
4782794
Assignee:
General Electric Company (Erie, PA) OSTI
DOE Contract Number:  
AC21-85MC22181
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fuel; injector; injection; particularly; adapted; injecting; coal; slurry; fuels; pressures; accumulator-type; utilizes; high-pressure; pilot; purging; fluid; prevent; hard; particles; impeding; closing; movement; needle; valve; hydraulic; medium; hold; closed; position; passage; delivers; appropriately; amount; ignition-aiding; appropriate; region; chamber; nozzle; beginning; interval; stratum; discharged; consists; essentially; thereafter; injected; fluid passage; fuel injector; particularly adapted; fuel injection; coal slurry; slurry fuel; consists essentially; closed position; pilot fuel; slurry fuels; purging fluid; closing movement; needle valve; injecting coal; type fuel; /123/239/

Citation Formats

Hsu, Bertrand D., and Leonard, Gary L. Fuel injector system. United States: N. p., 1988. Web.
Hsu, Bertrand D., & Leonard, Gary L. Fuel injector system. United States.
Hsu, Bertrand D., and Leonard, Gary L. Fri . "Fuel injector system". United States. https://www.osti.gov/servlets/purl/866765.
@article{osti_866765,
title = {Fuel injector system},
author = {Hsu, Bertrand D. and Leonard, Gary L.},
abstractNote = {A fuel injection system particularly adapted for injecting coal slurry fuels at high pressures includes an accumulator-type fuel injector which utilizes high-pressure pilot fuel as a purging fluid to prevent hard particles in the fuel from impeding the opening and closing movement of a needle valve, and as a hydraulic medium to hold the needle valve in its closed position. A fluid passage in the injector delivers an appropriately small amount of the ignition-aiding pilot fuel to an appropriate region of a chamber in the injector's nozzle so that at the beginning of each injection interval the first stratum of fuel to be discharged consists essentially of pilot fuel and thereafter mostly slurry fuel is injected.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Patent:

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