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1. WO2011002351 - METHOD FOR SELECTING BETWEEN TWO OPERATION MODES IN A DUAL FUEL INTERNAL COMBUSTION ENGINE OF THE DIESEL-TYPE AND A DUAL FUEL INTERNAL COMBUSTION ENGINE OF THE DIESEL-TYPE OPERABLE ACCORDING

Publication Number WO/2011/002351
Publication Date 06.01.2011
International Application No. PCT/SE2009/000350
International Filing Date 03.07.2009
Chapter 2 Demand Filed 29.04.2011
IPC
F02B 7/08 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
7Engines characterised by the fuel-air charge being ignited by compression ignition of an additional fuel
06the fuel in the charge being gaseous
08Methods of operating
F02D 19/10 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
06peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
08simultaneously using pluralities of fuels
10peculiar to compression-ignition engines in which the main fuel is gaseous
F02D 41/30 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
30Controlling fuel injection
CPC
F02D 19/061
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
06peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
0602Control of components of the fuel supply system
0607to adjust the fuel mass or volume flow
061by controlling fuel injectors
F02D 19/0652
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
06peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
0639characterised by the type of fuels
0649Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers
0652Biofuels, e.g. plant oils
F02D 19/10
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
06peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
08simultaneously using pluralities of fuels
10peculiar to compression-ignition engines in which the main fuel is gaseous
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
F02D 41/3029
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
30Controlling fuel injection
3011according to or using specific or several modes of combustion
3017characterised by the mode(s) being used
3023a mode being the stratified charge spark-ignited mode
3029further comprising a homogeneous charge spark-ignited mode
F02D 41/3035
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
30Controlling fuel injection
3011according to or using specific or several modes of combustion
3017characterised by the mode(s) being used
3035a mode being the premixed charge compression-ignition mode
Applicants
  • VOLVO TECHNOLOGY CORPORATION [SE]/[SE] (AllExceptUS)
  • MAGNUSSON, Ingemar [SE]/[SE] (UsOnly)
Inventors
  • MAGNUSSON, Ingemar
Agents
  • FRÖHLING, Werner, Otto
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR SELECTING BETWEEN TWO OPERATION MODES IN A DUAL FUEL INTERNAL COMBUSTION ENGINE OF THE DIESEL-TYPE AND A DUAL FUEL INTERNAL COMBUSTION ENGINE OF THE DIESEL-TYPE OPERABLE ACCORDING
(FR) PROCÉDÉ PERMETTANT DE SÉLECTIONNER ENTRE DEUX MODES DE FONCTIONNEMENT DANS UN MOTEUR À COMBUSTION INTERNE À DEUX COMBUSTIBLES DU TYPE DIESEL ET MOTEUR À COMBUSTION INTERNE À DEUX COMBUSTIBLES DU TYPE DIESEL FONCTIONNANT SELON CELUI-CI
Abstract
(EN)
The present invention relates to a method of selecting between two operation modes in a dual fuel internal combustion engine of the diesel-type, comprising a combustion chamber being at least partly delimited by a piston, a first fuel supply for a first fuel, said first fuel supply being located in or at the combustion chamber and/or in or at an inlet port thereof, and a second fuel supply for a second fuel, - the engine having two different operation modes, both operation modes comprising the steps of: - pre-mixing said first fuel in said combustion chamber and/or in said inlet port, - compressing the charge containing the first fuel to conditions that allow auto-ignition of the second fuel, - performing a first injection of the second fuel into said combustion chamber to initiate auto-ignition of said second fuel, thereby initiating conditions for combustion of the fuel remaining in the combustion chamber after auto-ignition of the second fuel, wherein - said first operation mode is distinguished by homogeneous ignition and combustion of the remaining fuel, - said second operation mode is distinguished by pre-mixed flame propagation combustion of the remaining fuel, said method further comprising the step of: - adjusting the amount of the second fuel injected in said first injection of the second fuel, and/or the timing of said first injection of the second fuel, so as to control the combustion chamber temperature and pressure after auto-ignition of the second fuel such that selection between said first and second operation modes is achieved. The invention also relates to a dual fuel internal combustion engine of the diesel-type.
(FR)
La présente invention concerne un procédé permettant de sélectionner entre deux modes de fonctionnement dans un moteur à combustion interne à deux combustibles du type diesel, comportant une chambre de combustion étant au moins partiellement délimitée par un piston, une première alimentation de combustible pour un premier combustible, ladite première alimentation de combustible étant située dans ou au niveau de la chambre de combustion et/ou dans ou au niveau d'un orifice d'admission de celle-ci, et une seconde alimentation de combustible pour un second combustible, - le moteur ayant deux modes de fonctionnement différents, les deux modes de fonctionnement comportant les étapes consistant à : - prémélanger ledit premier combustible dans ladite chambre de combustion et/ou dans ledit orifice d'admission, - comprimer la charge contenant le premier combustible en des conditions qui permettent l'autoallumage du second combustible, - effectuer une première injection du second combustible dans ladite chambre de combustion pour initialiser un autoallumage dudit second combustible, pour initialiser ainsi des conditions à des fins de combustion du combustible restant dans la chambre de combustion après l'autoallumage du second combustible, - ledit premier mode de fonctionnement se distinguant par l'allumage et la combustion homogènes du combustible restant, - ledit second mode de fonctionnement se distinguant par la combustion à propagation de flamme prémélangée du combustible restant, ledit procédé comportant par ailleurs l'étape consistant à : - ajuster la quantité du second combustible injecté dans ladite première injection du second combustible, et/ou le réglage de ladite première injection du second combustible, de sorte à réguler la température et la pression de la chambre de combustion après l'autoallumage du second combustible de sorte à réaliser la sélection entre lesdits premier et second modes de fonctionnement. L'invention concerne aussi un moteur à combustion interne à deux combustibles du type diesel.
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