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1. WO1998013596 - FUEL CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE USING AN AQUEOUS FUEL EMULSION

Publication Number WO/1998/013596
Publication Date 02.04.1998
International Application No. PCT/US1997/015348
International Filing Date 29.08.1997
Chapter 2 Demand Filed 30.03.1998
IPC
F02B 3/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
3Engines characterised by air compression and subsequent fuel addition
06with compression ignition
F02B 47/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
47Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
02the substances being water or steam
F02D 19/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
12peculiar to engines working with non-fuel substances or with anti-knock agents, e.g. with anti-knock fuel
F02D 41/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
CPC
F02B 3/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
3Engines characterised by air compression and subsequent fuel addition
06with compression ignition
F02B 47/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
47Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
02the substances being water or steam
F02D 19/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
19Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
12peculiar to engines working with non-fuel substances or with anti-knock agents, e.g. with anti-knock fuel
F02D 41/0025
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
DCONTROLLING COMBUSTION ENGINES
41Electrical control of supply of combustible mixture or its constituents
0025Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
F02M 25/0227
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
25Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
022Adding fuel and water emulsion, water or steam
0227Control aspects; Arrangement of sensors; Diagnostics; Actuators
F02M 25/0228
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
25Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
022Adding fuel and water emulsion, water or steam
0228Adding fuel and water emulsion
Applicants
  • CATERPILLAR INC. [US]/[US]
Inventors
  • COLEMAN, Gerald, N.
  • SIBLEY, James, E.
Agents
  • HAMPSCH, Robert, J.
Priority Data
08/760,44806.12.1996US
60/026,61724.09.1996US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FUEL CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE USING AN AQUEOUS FUEL EMULSION
(FR) SYSTEME DE REGULATION DE CARBURANT POUR MOTEUR A COMBUSTION INTERNE UTILISANT UNE EMULSION DE CARBURANT AQUEUX
Abstract
(EN)
A method and system (10) for the control of the overall water content of an aqueous fuel in an internal combustion engine (12) is provided. The disclosed fuel control system (10) includes a post add water system (40) and a control valve (48) that is responsive to selected engine operating characteristics such as engine operating temperature (56), engine load (52), and carbon monoxide levels in the engine exhaust (58). The post add water system (40) is adapted for selectively providing an additional supply of purified water via the control valve (48) to the aqueous fuel in the fuel line (14). The fuel system controller (20) is operatively associated with the control valve (48) to regulate the quantity of water added and thereby control the overall content of water in the aqueous fuel emulsion delivered to the fuel injectors (34).
(FR)
La présente invention concerne un procédé et un système (10) permettant de réguler le contenu total en eau d'un carburant aqueux de moteur à combustion interne (12). Le système de régulation de carburant (10) de la présente invention comprend un circuit d'alimentation en eau à adjonction postérieure (40) et une vanne de régulation (48) sensible à des caractéristiques choisies de fonctionnement du moteur, telles que la température de marche du moteur (56), la charge au moteur (52) et les niveaux d'oxyde de carbone des gaz d'échappement du moteur (58). Le circuit d'alimentation en eau à adjonction postérieure (40) est prévu pour délivrer de façon sélective, via la vanne de régulation (48), un apport supplémentaire en eau purifiée au carburant aqueux dans la tuyauterie à carburant (14). Le dispositif de commande (20) du circuit d'alimentation en carburant est associé de façon fonctionnelle à la vanne de régulation (48) de manière qu'il régule la quantité d'eau ajoutée et, ce faisant, le contenu total en eau de l'émulsion de carburant aqueux délivrée aux injecteurs de carburant (34).
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