Combined fuel engine

Patent · Tue Oct 31 04:00:00 EST 1989

OSTI ID:7226423

Paul, M A; Paul, A

This patent describes a combined fuel engine for reduced emission pollution. It comprises: a cylinder with at least one piston reciprocal therein with a cycle having at least a compression stroke and a power stroke. The cylinder and piston forming in part a combustion chamber; an air intake port and a combustion gas exhaust port communicating with the combustion chamber; first fuel injection means with a first fuel supply for injecting a first conventional fuel from the high carbon group including gasoline and diesel oil stored in the first fuel supply into the combustion chamber proximate the cycle time of peak compression at the end of the piston compression stroke, and second fuel injection means with a second fuel supply for injecting a second auxiliary fuel from the high hydrogen group including methanol, ethanol and liquefied natural gas stored in the second fuel supply into the intake port of the combustion chamber proximate the cycle time of low compression at the beginning of the piston compression stroke after the exhaust port is closed. The second fuel supply including a fuel supply line to the intake port that includes means for cooling hot areas of the engine while preheating the fuel before injection into the combustion chamber.

• Assignee: NOV; EDB-90-067450; NOV-90-004833
• Patent Number(s): A; US 4876988
• Application Number: PPN: US 7-206229A
• OSTI ID: 7226423
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
083000 -- Hydrogen-- Combustion-- (1990-)
09 BIOMASS FUELS
092000 -- Biomass Fuels-- Combustion-- (1990-)
33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
330800 -- Emission Control-- Alternative Fuels
AIR POLLUTION ABATEMENT
ALCOHOLS
AUTOMOTIVE FUELS
CHEMICAL REACTIONS
COMBUSTION
DESIGN
EMISSION
ENERGY SOURCES
ENGINES
ETHANOL
FLUIDS
FOSSIL FUELS
FUEL GAS
FUEL INJECTION SYSTEMS
FUEL SUBSTITUTION
FUEL SYSTEMS
FUELS
GAS FUELS
GASES
HEAT ENGINES
HYDROXY COMPOUNDS
INTERNAL COMBUSTION ENGINES
LIQUEFIED GASES
LIQUEFIED NATURAL GAS
METHANOL
NATURAL GAS
ORGANIC COMPOUNDS
OXIDATION
POLLUTION ABATEMENT
THERMOCHEMICAL PROCESSES