High compression ratio and efficiency governed self-ignition internal combustion engine

Patent · Tue Feb 25 04:00:00 EST 1986

OSTI ID:5974152

Bago, J

This patent describes an internal combustion engine operable on a fuel capable of being atomized at pressures above atmospheric pressure, which comprises: (a) at least one piston and cylinder defining an internal combustion chamber of compression ratio sufficient to provide self-ignition with the fuel when when mixed therein with air; (b) intake means selectively communicating a first source of the fuel with the internal combustion chamber and operable in timed relation to piston stroke and position; (c) exhaust means operable in time relation to piston position to selectively permit combusted gases to exit the cylinder; (d) means for selectively mixing fuel from the first fuel supply with air at relatively low pressure and for permitting the mixture to be introduced into the cylinder through the intake means during the intake stroke of the piston, the fuel/air ratio being less than the ratio required for self-ignition when the piston is at or near the top of the compression stroke; (e) auxiliary fuel supply means maintained at a predetermined elevated pressure, the pressure being greater than the pressure within the combustion chamber when the piston is at or near top dead center; and (f) valve means selectively opened and closed by means operatively linked to the crankshaft for selectively communicating the auxiliary fuel supply means with the combustion chamber and for selectively permitting a predetermined heated amount of the fuel under pressure to be introduced from the auxiliary fuel supply means into the combustion chamber in timed sequence such that when the piston is at a predetermined position at or near the top of the compression stroke of the piston.

• Assignee: NOV; EDB-86-095183
• Patent Number(s): US 4572133
• OSTI ID: 5974152
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
ATOMIZATION
COMBUSTION CHAMBERS
COMPRESSION RATIO
CYLINDERS
DISPERSIONS
EFFICIENCY
ENERGY EFFICIENCY
ENGINES
EXHAUST SYSTEMS
FUEL-AIR RATIO
HEAT ENGINES
IGNITION
INTERNAL COMBUSTION ENGINES
MIXTURES
PISTONS
PRESSURE DEPENDENCE
PRESSURIZING
TIME DEPENDENCE