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1. (WO1984002744) METHOD OF OPERATING AN ENGINE WITH A HIGH HEAT OF VAPORIZATION FUEL
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1984/002744 International Application No.: PCT/US1983/000029
Publication Date: 19.07.1984 International Filing Date: 10.01.1983
IPC:
F02B 1/02 (2006.01) ,F02B 17/00 (2006.01) ,F02B 23/10 (2006.01) ,F02F 3/26 (2006.01) ,F02B 75/12 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
1
Engines characterised by fuel-air mixture compression
02
with positive ignition
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
17
Engines characterised by means for effecting stratification of charge in cylinders
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
23
Other engines characterised by special shape or construction of combustion chambers to improve operation
08
with positive ignition
10
with separate admission of air and fuel into cylinder
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F
CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
3
Pistons
26
having combustion chamber in piston head
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75
Other engines, e.g. single-cylinder engines
12
Other methods of operation
Applicants:
Inventors:
Priority Data:
null30.12.1899null
Title (EN) METHOD OF OPERATING AN ENGINE WITH A HIGH HEAT OF VAPORIZATION FUEL
(FR) PROCEDE DE FONCTIONNEMENT D"UN MOTEUR AVEC UN CARBURANT AYANT UNE CHALEUR DE VAPORISATION ELEVEE
Abstract:
(EN) A method of operating an internal combustion engine (10) of the spark ignition type with a fuel having a high latent heat of vaporization such as methanol by injecting the fuel in two stages, the first major portion of the fuel being injected at the start of the intake stroke into a bowl-in-piston cavity combustion chamber (22) to be vaporized and atomized, the second smaller portion being injected late in the compression stroke just prior to ignition to remain close to the injector tip (34) to richen the mixture adjacent the spark plug (36), and igniting the mixture.
(FR) Un procédé de fonctionnement d"un moteur à combustion interne (10) du type à allumage par bougie consiste à utiliser un carburant ayant une chaleur latente de vaporisation élevée tel que du méthanol en injectant le carburant dans deux étages, la première grande partie de carburant étant injectée au début du temps d"admission dans la chambre de combustion à cavité du type à cuvette dans piston (22), laquelle chambre est vaporisée et atomisée, la seconde partie plus petite de carburant étant injectée plus tard au cours du temps de compression juste avant l"allumage pour rester fermée au bec de l"injecteur (34) et enrichir le mélange adjacent à la bougie d"allumage (36), et allumer le mélange.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)