Internal-combustion engines – Solid fuel
Patent
1987-08-25
1988-11-08
Nelli, Raymond A.
Internal-combustion engines
Solid fuel
239 88, F02D 1904
Patent
active
047827947
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.
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S. F. Nydick et al, "Continued Development of a Coal Water Slurry Fired Slow-Speed Diesel Engine . . . " ASME Paper No. 87-ICE-10 (Feb. 1987, Dallas, TX).
Hsu Bertrand D.
Leonard Gary L.
General Electric Company
Nelli Raymond A.
Richardson, Jr. Albert S.
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