Coal-water slurry fuel internal combustion engine and method for operating same

Patent · Wed Jan 01 00:00:00 EST 1992

OSTI ID:868537

McMillian, Michael H ^[1]

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1. Fairmont, WV

An internal combustion engine fueled with a coal-water slurry is described. About 90 percent of the coal-water slurry charge utilized in the power cycle of the engine is directly injected into the main combustion chamber where it is ignited by a hot stream of combustion gases discharged from a pilot combustion chamber of a size less than about 10 percent of the total clearance volume of main combustion chamber with the piston at top dead center. The stream of hot combustion gases is provided by injecting less than about 10 percent of the total coal-water slurry charge into the pilot combustion chamber and using a portion of the air from the main combustion chamber that has been heated by the walls defining the pilot combustion chamber as the ignition source for the coal-water slurry injected into the pilot combustion chamber.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5163385
• OSTI ID: 868537
• Country of Publication: United States
• Language: English

Related Subjects

coal-water
slurry
fuel
internal
combustion
engine
method
operating
fueled
described
90
percent
charge
utilized
power
cycle
directly
injected
main
chamber
ignited
hot
stream
gases
discharged
pilot
size
10
total
clearance
volume
piston
top
dead
center
provided
injecting
portion
air
heated
walls
defining
ignition
source
walls defining
top dead
water slurry
coal-water slurry
hot combustion
internal combustion
combustion chamber
combustion gases
combustion engine
slurry fuel
combustion gas
main combustion
dead center
power cycle
slurry charge
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