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1. WO2020064495 - WATER INJECTION SYSTEM, AND METHOD FOR OPERATING A WATER INJECTION SYSTEM

Publication Number WO/2020/064495
Publication Date 02.04.2020
International Application No. PCT/EP2019/075133
International Filing Date 19.09.2019
IPC
F02M 25/022 2006.01
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
F02M 25/028 2006.01
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
025Adding water
028into the charge intakes
F02B 75/22 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
75Other engines, e.g. single-cylinder engines
16Engines characterised by number of cylinders, e.g. single-cylinder engines
18Multi-cylinder engines
22with cylinders in V-, fan-, or star-arrangement
CPC
F02B 75/22
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75Other engines
16Engines characterised by number of cylinders, e.g. single-cylinder engines
18Multi-cylinder engines
22with cylinders in V, fan, or star arrangement
F02M 25/0221
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
0221Details of the water supply system, e.g. pumps or arrangement of valves
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 25/028
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
025Adding water
028into the charge intakes
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE]
Inventors
  • GLADEL, Pascal
  • BURAK, Ingmar
  • HOEGL, Johannes
Priority Data
10 2018 216 411.826.09.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) WASSEREINSPRITZSYSTEM SOWIE VERFAHREN ZUM BETREIBEN EINES WASSEREINSPRITZSYSTEMS
(EN) WATER INJECTION SYSTEM, AND METHOD FOR OPERATING A WATER INJECTION SYSTEM
(FR) SYSTÈME D'INJECTION D'EAU ET PROCÉDÉ POUR FAIRE FONCTIONNER UN SYSTÈME D'INJECTION D'EAU
Abstract
(DE)
Die Erfindung betrifft ein Wassereinspritzsystem für einen mehrere Zylinder (2) aufweisenden Verbrennungsmotor (1), umfassend einen Wassertank (3), eine Pumpe (4) und ein Rail (5),an das mindestens ein Einspritzventil (6) zum Einspritzen von Wasser in ein Saugrohr (7) des Verbrennungsmotors (1) angeschlossen ist. Erfindungsgemäß sind die Zylinder (2) bankweise angeordnet, wobei der Verbrennungsmotor (1) mindestens eine erste Bank(8) und eine zweite Bank (9) aufweist und wobei jeder Bank (8, 9) ein Rail (5, 10) mit jeweils mindestens einem Einspritzventil (6, 11) zugeordnet ist. Die Erfindung betrifft ferner ein Verfahren zum Betreiben eines Wassereinspritzsystems.
(EN)
The invention relates to a water injection system for an internal combustion engine (1) having a plurality of cylinders (2), said water injection system comprising a water tank (3), a pump (4), and a rail (5) to which at least one injection valve (6) for injecting water into a suction tube (7) of the internal combustion engine (1) is connected. According to the invention, the cylinders (2) are arranged in banks, the internal combustion engine (1) having at least one first bank (8) and one second bank (9) and each bank (8, 9) being assigned a rail (5, 10) having in each case at least one injection valve (6, 11). The invention also relates to a method for operating a water injection system.
(FR)
L'invention concerne un système d'injection d'eau pour un moteur à combustion interne (1) présentant plusieurs cylindres (2). Le système comprend un réservoir d'eau (3), une pompe (4) et une rampe (5), à laquelle sont raccordées la ou les soupapes d'injection (6) destinées à injecter de l'eau dans un tube d'aspiration (7) du moteur à combustion interne (1). Selon l'invention, les cylindres (2) sont disposés par bancs, le moteur à combustion interne (1) présentant au moins un premier banc (8) et un deuxième banc (9) et à chaque banc (8, 9) étant associée une rampe (5, 10) pourvue de respectivement au moins une soupape d'injection (6, 11). La présente invention concerne en outre un procédé permettant de faire fonctionner un système d'injection d'eau.
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