EP3292296A1 - Device and method for injecting water of an internal combustion engine - Google Patents

Device and method for injecting water of an internal combustion engine

Info

Publication number
EP3292296A1
EP3292296A1 EP16717359.0A EP16717359A EP3292296A1 EP 3292296 A1 EP3292296 A1 EP 3292296A1 EP 16717359 A EP16717359 A EP 16717359A EP 3292296 A1 EP3292296 A1 EP 3292296A1
Authority
EP
European Patent Office
Prior art keywords
water
lamp
water tank
internal combustion
combustion engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16717359.0A
Other languages
German (de)
French (fr)
Inventor
Ingmar Burak
Peter Schenk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3292296A1 publication Critical patent/EP3292296A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C02F1/325—Irradiation devices or lamp constructions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
    • F02M25/0222—Water recovery or storage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
    • F02M25/0224—Water treatment or cleaning
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/023—Water in cooling circuits
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/022—Adding fuel and water emulsion, water or steam
    • F02M25/025—Adding water
    • F02M25/028—Adding water into the charge intakes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a device for injecting water of an internal combustion engine and such an internal combustion engine. Another aspect of the invention relates to a method for injecting water by means of a water injection device according to the invention.
  • Pollution of the used water can be caused. These contaminants promote the formation of algae and fungi as well as the growth of cyanobacteria, acetobacter or other microorganisms.
  • Contamination or biocontamination arises in particular in the water tank with a longer standing medium.
  • Internal combustion engine with the features of claim 1 has the advantage over that contamination or biocontamination can be reduced or eliminated by irradiating the water by means of ultraviolet radiation. This is inventively by a device for
  • Injection of water which comprises a water tank for storing water, at least one water injector for injecting water, which is connected to the water tank, a control unit and at least one UV lamp, which is adapted to emit ultraviolet radiation.
  • the control unit is set up, the UV lamp for
  • Injection of water is the simple retrofitting of an existing water injection system with a UV lamp according to the invention possible.
  • the UV lamp is arranged in the water tank. This allows a compact construction of the device for injection of water.
  • the UV lamp is arranged above a maximum water level of the water tank.
  • a quick irradiation of the water is achieved.
  • can on a complicated Sealing of the UV lamp can be dispensed with.
  • the maximum water level is the maximum level of water in the water tank, which is available for injection.
  • the UV lamp can be arranged below the maximum water level of the water tank. As a result, the size of the water tank can be further reduced.
  • the UV lamp may be partially above and partially below the maximum water level of the water tank
  • Such an arrangement has a combination of the already described advantageous effects of the arrangement of the UV lamp above and below the maximum water level.
  • the UV lamp can be arranged adjustable in the water tank.
  • the UV lamp can be placed depending on the application or water tank design in the correct position in the water tank, resulting in optimal decontamination of the water. An adjustment of the UV lamp in the
  • Water tank can be done at the beginning or during the decontamination process.
  • a fill level sensor for detecting a fill level of the water tank is provided.
  • the UV lamp can be turned on based on a detected level of the water tank for a predetermined time.
  • a detected level of the water tank can be used for an adjustment of the UV lamp in the water tank.
  • the device further comprises a conveying element for conveying the water, wherein the conveying element is connected by means of a first line to the water tank and by means of a second line to the water injector, wherein the UV lamp arranged in the first line or in the second line is.
  • control unit is adapted to supply water condensate of an air conditioner and / or refill water via a filling line in the water tank, wherein the UV lamp is arranged on the filling line in front of the water tank.
  • the order the UV lamp outside the water tank on the filling line offers flexibility in positioning the UV lamp, especially in the case of limited available space, in the water injection system.
  • the device for injecting water preferably has a first filter element, which is provided in the filling line, in particular downstream of the UV lamp.
  • the device according to the invention comprises a second
  • Filter element which in the first line, in particular in an im
  • Ultraviolet radiation may further disinfect the second filter element.
  • the combination of a UV lamp and the first and / or the second filter element ensures that the water to be injected is free of contaminants and microorganisms.
  • Another aspect of the present invention relates to an internal combustion engine comprising an apparatus for injecting water according to the invention.
  • the internal combustion engine according to the present invention according to the Otto principle and operated with gasoline.
  • the internal combustion engine is to be understood, in which a combustion of gasoline or gasoline-air mixture takes place by spark ignition in the form of a spark plug. Since in such an internal combustion engine, the ignition timing is exactly predetermined by the spark ignition, and the combustion is improved by the water injection, is characterized by the
  • the device according to the invention is used in an internal combustion engine with gasoline direct injection and turbocharging.
  • the present invention relates to a method for injecting water into an internal combustion engine, wherein the water is decontaminated by means of a UV lamp, which emits ultraviolet radiation, and by means of a Water injector is injected. This is associated with the advantages described in relation to the device according to the invention for the injection of water.
  • the UV lamp is switched on cyclically or permanently.
  • Water injector is arranged is by a cyclic or
  • the UV lamp is turned on when water condensate from an air conditioner and / or refill water is supplied to the water tank.
  • the water can be selectively decontaminated.
  • the energy costs for operating the UV lamp can be reduced.
  • Figure 1 is a greatly simplified schematic view of a
  • FIG. 2 shows a simplified schematic view of the device according to the first exemplary embodiment
  • Figure 3 is a greatly simplified, schematic view of the device according to a second embodiment.
  • Figure 4 is a greatly simplified, schematic view of the device according to a third embodiment. Embodiments of the invention
  • FIGS. 1 and 2 an apparatus 1 for injecting water of an internal combustion engine 2 according to a first embodiment will be described
  • Internal combustion engine 2 according to the Otto principle and operated with gasoline direct injection.
  • the internal combustion engine 2 is shown schematically, which is a
  • the internal combustion engine 2 comprises per cylinder a combustion chamber 20 in which a piston 21 is movable back and forth. Furthermore, preferably the internal combustion engine 2 per cylinder has an inlet channel 22, via which air is supplied to the combustion chamber 20. Exhaust gas is removed via an exhaust duct 23. For this purpose, an inlet valve 25 and the exhaust duct 23, an outlet valve 26 are arranged on the inlet channel 22.
  • the reference numeral 24 also designates a fuel injection valve.
  • a water injector 6 is further arranged, which injects water into the inlet channel 22 of the internal combustion engine 2 via a control unit 10.
  • a water injector 6 per cylinder is provided.
  • FIG. 2 shows the device 1 according to the invention for injecting water.
  • the water injection device 1 comprises a pumping element designed as a pump 3 and an electric drive 4 for driving the pump 3. Furthermore, a water tank 5 is provided, which is connected by a first line 7 to the pump 3. A second line 8 connects the pump 3 with a distributor 9 or a rail, on which a plurality of
  • Water injectors 6 is connected.
  • the water is supplied from the water tank 5 through the pump 3 into the water injectors 6. This is preferred
  • a filling line 1 1 has.
  • deionized water can be conveyed from a refill tank (not shown) into the water tank 5.
  • a first filter element 16 and in the first line 7, a second filter element 17 are arranged.
  • a pressure regulator 15 is arranged in the form of a diaphragm in a return line 13, which connects the second line 8 with the water tank 5.
  • Pressure regulator 15 may be formed as a check valve.
  • a pressure sensor 14 is further provided in the second line 8.
  • the water tank 5 is shown in Figure 2 with water at a maximum water level S.
  • a UV lamp 12 is arranged according to the invention.
  • the UV lamp 12 is configured to emit ultraviolet radiation and is turned on via the control unit 10 to decontaminate the water in the water tank 5.
  • the UV lamp 12 is in this
  • the UV lamp 12 can be operated permanently to
  • the UV lamp 12 is arranged adjustable in the water tank 5.
  • the UV lamp 12 can be positioned depending on the application so that an optimal decontamination of the water takes place.
  • a level sensor 18 is provided in the device 1.
  • Level sensor 18 is used to detect a water level of the
  • the detected water level can be used to control the UV lamp 12.
  • the detected water level can be used to control the UV lamp 12.
  • Engagement of the UV lamp 12 are determined depending on the detected water level.
  • the UV lamp 12 may be adjusted based on the detected water level such that the UV lamp 12 is e.g. is always below the current water level in the water tank 5.
  • the UV lamp 12 allows the water of the
  • Water injection device 1 is disinfected in an environmentally safe and simple way. Thus, also a blockage of the filter elements 16, 17 be avoided, which leads to the required to be injected
  • FIG. 3 shows a greatly simplified view of the water injection device
  • the second embodiment differs from the first embodiment of Figures 1 and 2 basically in that the UV lamp 12 is disposed in the water tank 5 above the maximum water level S.
  • This arrangement offers the advantage of rapid and uniform irradiation of the water in the water tank 5. Since the UV lamp 12 is not sunk in the water, additional costs due to a complicated sealing of the UV lamp 12 can be avoided.
  • FIG. 4 shows a device 1 for injecting water according to a third exemplary embodiment of the present invention.
  • the UV lamp 12 is arranged on the filling line 1 1.
  • the filling line 1 1 connects the air conditioner 19, in particular an evaporator of the air conditioner 19, with the water tank 5.
  • the UV lamp 12 is preferably arranged in the direction of the supply of water in the water tank 5 in front of the first filter element 16.
  • the UV lamp 12 is turned on when water condensate from the
  • Air conditioner 19 is supplied to the water tank 5. Thus, a targeted decontamination of the water takes place, whereby a cost savings of
  • Embodiments has only one UV lamp 12, it is possible in the invention to use a plurality of UV lamps, which in the
  • Lines 7, 8, 1 1 and 13 can be arranged in the water tank 5.

Abstract

The present invention relates to a device for injecting water of an internal combustion engine (2), comprising a water tank (5) for storing water, at least one water injector (6) for injecting water, which water injector is connected to the water tank (5), at least one UV lamp (12) which is configured to emit ultra violet radiation, and a control unit (10) which is configured to switch on the UV lamp (12) for decontaminating water and injecting the decontaminated water. The invention further relates to an internal combustion engine which comprises a device according to the invention. A further aspect of the invention relates to a method for injecting water.

Description

Beschreibung Titel  Description title
Vorrichtung und Verfahren zur Einspritzung von Wasser einer  Apparatus and method for injecting water
Brennkraftmaschine Internal combustion engine
Stand der Technik State of the art
Die vorliegende Erfindung betrifft eine Vorrichtung zur Einspritzung von Wasser einer Brennkraftmaschine sowie eine derartige Brennkraftmaschine. Ein weiterer Aspekt der Erfindung betrifft ein Verfahren zum Einspritzen von Wasser mittels einer erfindungsgemäßen Wassereinspritzvorrichtung. The present invention relates to a device for injecting water of an internal combustion engine and such an internal combustion engine. Another aspect of the invention relates to a method for injecting water by means of a water injection device according to the invention.
Aufgrund steigender Anforderungen an reduzierte Kohlenstoffdioxidemissionen werden Brennkraftmaschinen zunehmend hinsichtlich Kraftstoffverbrauchs optimiert. Allerdings können bekannte Brennkraftmaschinen in Betriebspunkten mit hoher Last nicht optimal bezüglich des Verbrauchs betrieben werden, da der Betrieb durch Klopfneigung und hohe Abgastemperaturen begrenzt ist. Eine mögliche Maßnahme zur Reduzierung der Klopfneigung und zur Senkung der Abgastemperaturen ist die Einspritzung von Wasser. Hierbei sind üblicherweise separate Wassereinspritzsysteme vorhanden, um die Wassereinspritzung zu ermöglichen. So ist z.B. aus der WO 2014/080266 A1 ein Wassereinspritzsystem für eine Brennkraftmaschine mit Abgasrückführung bekannt, bei dem das Wasser in den Massenstrom der Abgasrückführung eingespritzt wird. Due to increasing demands on reduced carbon dioxide emissions, internal combustion engines are increasingly being optimized with regard to fuel consumption. However, known internal combustion engines can not be optimally operated in terms of consumption at operating points with high load, since the operation is limited by knock tendency and high exhaust gas temperatures. A possible measure to reduce the tendency to knock and to lower the exhaust gas temperatures is the injection of water. There are usually separate water injection systems available to allow the water injection. For example, e.g. from WO 2014/080266 A1 discloses a water injection system for an internal combustion engine with exhaust gas recirculation, in which the water is injected into the mass flow of the exhaust gas recirculation.
Ein Problem bei bekannten Wassereinspritzsystemen ist eine mögliche A problem with known water injection systems is one possible
Beeinträchtigung deren Funktion durch Kontamination, welche durch Impairment of their function by contamination caused by
Verunreinigungen des benutzten Wassers verursacht werden kann. Diese Verunreinigungen fördern die Bildung von Algen und Pilzen sowie das Wachstum von Cyanobakterien, Acetobacter oder anderen Mikroorganismen. Die Pollution of the used water can be caused. These contaminants promote the formation of algae and fungi as well as the growth of cyanobacteria, acetobacter or other microorganisms. The
Kontamination bzw. Biokontamination entsteht insbesondere im Wassertank bei länger stehendem Medium. Zur Vermeidung der Kontamination oder zur Contamination or biocontamination arises in particular in the water tank with a longer standing medium. To avoid contamination or to
Aufhebung einer schon bestehenden Kontamination werden bei bekannten Wassereinspritzsystemen chemische Produkte oder Beschichtungen benutzt. Dies kann allerdings zu einer Fehlfunktion der Komponenten bis hin zum Ausfall sowie zu einer Verstopfung von Filtern führen, welche im Wassereinspritzsystem angeordnet sind. Abolition of existing contamination are known Water injection systems used chemical products or coatings. However, this can lead to malfunction of the components to failure and to a blockage of filters, which are arranged in the water injection system.
Offenbarung der Erfindung Disclosure of the invention
Die erfindungsgemäße Vorrichtung zum Einspritzen von Wasser einer The inventive device for injecting water of a
Brennkraftmaschine mit den Merkmalen des Anspruchs 1 weist demgegenüber den Vorteil auf, dass eine Kontamination bzw. Biokontamination durch das Bestrahlen des Wassers mittels ultravioletter Strahlung verringert oder eliminiert werden kann. Dies wird erfindungsgemäß durch eine Vorrichtung zur Internal combustion engine with the features of claim 1 has the advantage over that contamination or biocontamination can be reduced or eliminated by irradiating the water by means of ultraviolet radiation. This is inventively by a device for
Einspritzung von Wasser erreicht, welche einen Wassertank zur Speicherung von Wasser, mindestens einen Wasserinjektor zum Einspritzen von Wasser, welcher mit dem Wassertank verbunden ist, eine Steuereinheit und mindestens eine UV-Lampe umfasst, welche eingerichtet ist, Ultraviolettstrahlung abzugeben. Erfindungsgemäß ist die Steuereinheit eingerichtet, die UV-Lampe zum Injection of water, which comprises a water tank for storing water, at least one water injector for injecting water, which is connected to the water tank, a control unit and at least one UV lamp, which is adapted to emit ultraviolet radiation. According to the invention, the control unit is set up, the UV lamp for
Dekontaminieren des Wassers einzuschalten, und das dekontaminierte Wasser einzuspritzen. Eine Dekontamination mittels Ultraviolettstrahlung bietet eine hohe Entkeimungskapazität. Ferner ist diese Dekontaminationsmethode ökologisch sicher, effizient, zuverlässig und bedienungsfreundlich, was zu einer hohen Wirtschaftlichkeit der Methode führt. Außerdem lässt sich die Wirksamkeit der Dekontaminationsmethode vorzugsweise über die Strahlungsdosis steuern, wodurch die Methode an die jeweiligen Anforderungen angepasst werden kann. Neben einer Neuherstellung einer erfindungsgemäßen Vorrichtung zur Turn on decontamination of the water, and inject the decontaminated water. Decontamination by means of ultraviolet radiation offers a high disinfection capacity. Furthermore, this decontamination method is ecologically safe, efficient, reliable and easy to use, resulting in a high efficiency of the method. In addition, the effectiveness of the decontamination method can preferably be controlled by the radiation dose, which allows the method to be adapted to the respective requirements. In addition to a new production of a device according to the invention for
Einspritzung von Wasser ist die einfache Nachrüstung eines bereits vorhandenen Wassereinspritzsystems mit einer UV-Lampe gemäß der Erfindung möglich. Injection of water is the simple retrofitting of an existing water injection system with a UV lamp according to the invention possible.
Die Unteransprüche zeigen bevorzugte Weiterbildungen der Erfindung. The dependent claims show preferred developments of the invention.
Besonders bevorzugt ist die UV-Lampe im Wassertank angeordnet. Dadurch wird ein kompakter Aufbau der Vorrichtung zur Einspritzung von Wasser ermöglicht. Particularly preferably, the UV lamp is arranged in the water tank. This allows a compact construction of the device for injection of water.
Nach einer vorteilhaften Ausgestaltung der Erfindung ist die UV-Lampe oberhalb eines Maximalwasserspiegels des Wassertanks angeordnet. Somit wird eine schnelle Bestrahlung des Wassers erzielt. Außerdem kann auf eine komplizierte Abdichtung der UV-Lampe verzichtet werden. Als Maximalwasserspiegel ist der maximale Stand des Wassers im Wassertank zu verstehen, welches für die Einspritzung zur Verfügung steht. According to an advantageous embodiment of the invention, the UV lamp is arranged above a maximum water level of the water tank. Thus, a quick irradiation of the water is achieved. Besides, can on a complicated Sealing of the UV lamp can be dispensed with. The maximum water level is the maximum level of water in the water tank, which is available for injection.
Nach einer weiteren bevorzugten Ausgestaltung der Erfindung kann die UV- Lampe unterhalb des Maximalwasserspiegels des Wassertanks angeordnet sein. Dadurch kann die Größe des Wassertanks weiter reduziert werden. According to a further preferred embodiment of the invention, the UV lamp can be arranged below the maximum water level of the water tank. As a result, the size of the water tank can be further reduced.
Im Rahmen der Erfindung kann vorzugsweise die UV-Lampe teilweise oberhalb und teilweise unterhalb des Maximalwasserspiegels des Wassertanks In the context of the invention, the UV lamp may be partially above and partially below the maximum water level of the water tank
angeordnet sein. Eine solche Anordnung weist eine Kombination der schon beschriebenen vorteilhaften Effekte der Anordnung der UV-Lampe oberhalb und unterhalb des Maximalwasserspiegels auf. be arranged. Such an arrangement has a combination of the already described advantageous effects of the arrangement of the UV lamp above and below the maximum water level.
Vorzugsweise kann die UV-Lampe im Wassertank verstellbar angeordnet sein. Somit kann die UV-Lampe je nach Anwendung oder Wassertankdesign in die richtige Position im Wassertank gebracht werden, was zu einer optimalen Dekontamination des Wassers führt. Eine Verstellung der UV-Lampe im Preferably, the UV lamp can be arranged adjustable in the water tank. Thus, the UV lamp can be placed depending on the application or water tank design in the correct position in the water tank, resulting in optimal decontamination of the water. An adjustment of the UV lamp in the
Wassertank kann am Anfang oder während des Dekontaminationsvorgangs erfolgen. Water tank can be done at the beginning or during the decontamination process.
Es kann ferner von Vorteil sein, wenn ein Füllstandsensor zum Erkennen eines Füllstands des Wassertanks vorgesehen ist. So kann die UV-Lampe basierend auf einem erkannten Füllstand des Wassertanks für eine vorbestimmte Zeit eingeschaltet werden. Ferner kann ein erkannter Füllstand des Wassertanks für eine Verstellung der UV-Lampe im Wassertank benutzt werden. It may also be advantageous if a fill level sensor for detecting a fill level of the water tank is provided. Thus, the UV lamp can be turned on based on a detected level of the water tank for a predetermined time. Furthermore, a detected level of the water tank can be used for an adjustment of the UV lamp in the water tank.
In vorteilhafter Weise umfasst die Vorrichtung ferner ein Förderelement zur Förderung des Wassers, wobei das Förderelement mittels einer ersten Leitung mit dem Wassertank und mittels einer zweiten Leitung mit dem Wasserinjektor verbunden ist, wobei die UV-Lampe in der ersten Leitung oder in der zweiten Leitung angeordnet ist. Advantageously, the device further comprises a conveying element for conveying the water, wherein the conveying element is connected by means of a first line to the water tank and by means of a second line to the water injector, wherein the UV lamp arranged in the first line or in the second line is.
Nach einer noch weiteren bevorzugten Ausgestaltung der Erfindung ist die Steuereinheit eingerichtet, um Wasserkondensat einer Klimaanlage und/oder Nachfüllwasser über eine Füllleitung in den Wassertank zuzuführen, wobei die UV-Lampe an der Füllleitung vor dem Wassertank angeordnet ist. Die Anordnung der UV-Lampe außerhalb des Wassertanks an der Füllleitung bietet eine Flexibilität beim Anordnen der UV-Lampe, insbesondere bei beschränktem verfügbarem Platz, im Wassereinspritzsystem. According to yet another preferred embodiment of the invention, the control unit is adapted to supply water condensate of an air conditioner and / or refill water via a filling line in the water tank, wherein the UV lamp is arranged on the filling line in front of the water tank. The order the UV lamp outside the water tank on the filling line offers flexibility in positioning the UV lamp, especially in the case of limited available space, in the water injection system.
Ferner bevorzugt weist die Vorrichtung zur Einspritzung von Wasser ein erstes Filterelement auf, welches in der Füllleitung, insbesondere stromabwärts nach der UV-Lampe, vorgesehen ist. Furthermore, the device for injecting water preferably has a first filter element, which is provided in the filling line, in particular downstream of the UV lamp.
Vorzugsweise umfasst die erfindungsgemäße Vorrichtung ein zweites Preferably, the device according to the invention comprises a second
Filterelement, welches in der ersten Leitung, insbesondere in einem im Filter element which in the first line, in particular in an im
Wassertank liegenden Leitungsabschnitt, vorgesehen ist. Mittels der Water tank lying line section, is provided. By means of
Ultraviolettstrahlung kann ferner das zweite Filterelement desinfiziert werden. Ultraviolet radiation may further disinfect the second filter element.
Durch die Kombination einer UV-Lampe und des ersten und/oder des zweiten Filterelements wird sichergestellt, dass das einzuspritzende Wasser frei von Verunreinigungen und Mikroorganismen ist. The combination of a UV lamp and the first and / or the second filter element ensures that the water to be injected is free of contaminants and microorganisms.
Ein weiterer Aspekt der vorliegenden Erfindung betrifft eine Brennkraftmaschine, welche eine Vorrichtung zur Einspritzung von Wasser gemäß der Erfindung umfasst. Another aspect of the present invention relates to an internal combustion engine comprising an apparatus for injecting water according to the invention.
Besonders bevorzugt wird die Brennkraftmaschine gemäß der vorliegenden Erfindung nach dem Otto-Prinzip und mit Benzin betrieben. Als eine solche Brennkraftmaschine ist die Brennkraftmaschine zu verstehen, bei welcher eine Verbrennung von Benzin bzw. Benzin-Luft-Gemisch durch Fremdzündung in Form einer Zündkerze erfolgt. Da bei einer solchen Brennkraftmaschine der Zündzeitpunkt durch die Fremdzündung genau vorbestimmt ist, und durch die Wassereinspritzung die Verbrennung verbessert wird, wird durch die Particularly preferably, the internal combustion engine according to the present invention according to the Otto principle and operated with gasoline. As such an internal combustion engine, the internal combustion engine is to be understood, in which a combustion of gasoline or gasoline-air mixture takes place by spark ignition in the form of a spark plug. Since in such an internal combustion engine, the ignition timing is exactly predetermined by the spark ignition, and the combustion is improved by the water injection, is characterized by the
Verwendung von Ultraviolettstrahlung zum Dekontaminieren des Wassers eine ausfallsichere Funktionsweise der Brennkraftmaschine erzielt. Use of ultraviolet radiation to decontaminate the water achieves a fail-safe operation of the internal combustion engine.
Insbesondere ist die erfindungsgemäße Vorrichtung in einer Brennkraftmaschine mit Benzindirekteinspritzung und Turboaufladung eingesetzt. In particular, the device according to the invention is used in an internal combustion engine with gasoline direct injection and turbocharging.
Ferner betrifft die vorliegende Erfindung ein Verfahren zum Einspritzen von Wasser in eine Brennkraftmaschine, wobei das Wasser mittels einer UV-Lampe, welche Ultraviolettstrahlung abgibt, dekontaminiert wird und mittels einer Wassereinspritzvorrichtung eingespritzt wird. Damit sind die in Bezug auf die erfindungsgemäße Vorrichtung zum Einspritzen von Wasser beschriebenen Vorteile verbunden. Furthermore, the present invention relates to a method for injecting water into an internal combustion engine, wherein the water is decontaminated by means of a UV lamp, which emits ultraviolet radiation, and by means of a Water injector is injected. This is associated with the advantages described in relation to the device according to the invention for the injection of water.
Vorzugsweise wird die UV-Lampe zyklisch oder dauerhaft eingeschaltet. Preferably, the UV lamp is switched on cyclically or permanently.
Insbesondere wenn die UV-Lampe in einem Wassertank der Especially when the UV lamp in a water tank of the
Wassereinspritzvorrichtung angeordnet ist, wird durch eine zyklische bzw. Water injector is arranged is by a cyclic or
periodische oder dauerhafte Bestrahlung des Wassers sichergestellt, dass das Wasser in den Wasserinjektor ohne Mikroorganismen und/oder periodic or permanent irradiation of the water ensures that the water in the water injector without microorganisms and / or
Verunreinigungen gelangt. Impurities.
Vorteilhafterweise wird die UV-Lampe eingeschaltet, wenn Wasserkondensat aus einer Klimaanlage und/oder Nachfüllwasser in den Wassertank zugeführt wird. Somit kann das Wasser gezielt dekontaminiert werden. Dadurch können die Energiekosten zum Betreiben der UV-Lampe reduziert werden. Advantageously, the UV lamp is turned on when water condensate from an air conditioner and / or refill water is supplied to the water tank. Thus, the water can be selectively decontaminated. As a result, the energy costs for operating the UV lamp can be reduced.
Kurze Beschreibung der Zeichnungen Brief description of the drawings
Nachfolgend werden Ausführungsbeispiele der Erfindung unter Bezugnahme auf die begleitende Zeichnung im Detail beschrieben, wobei gleiche bzw. funktional gleiche Teile jeweils mit dem gleichen Bezugszeichen bezeichnet sind. In der Zeichnung ist: Hereinafter, embodiments of the invention will be described in detail with reference to the accompanying drawings, wherein like or functionally identical parts are designated by the same reference numerals. In the drawing is:
Figur 1 eine stark vereinfachte schematische Ansicht einer Figure 1 is a greatly simplified schematic view of a
Brennkraftmaschine mit einer Vorrichtung zum Einspritzen von Wasser gemäß einem ersten Ausführungsbeispiel der vorliegenden Erfindung,  Internal combustion engine with a device for injecting water according to a first exemplary embodiment of the present invention,
Figur 2 eine vereinfachte schematische Ansicht der Vorrichtung gemäß dem ersten Ausführungsbeispiel, FIG. 2 shows a simplified schematic view of the device according to the first exemplary embodiment,
Figur 3 eine stark vereinfachte, schematische Ansicht der Vorrichtung gemäß einem zweiten Ausführungsbeispiel, und Figure 3 is a greatly simplified, schematic view of the device according to a second embodiment, and
Figur 4 eine stark vereinfachte, schematische Ansicht der Vorrichtung gemäß einem dritten Ausführungsbeispiel. Ausführungsformen der Erfindung Figure 4 is a greatly simplified, schematic view of the device according to a third embodiment. Embodiments of the invention
Nachfolgend wird unter Bezugnahme auf die Figuren 1 und 2 eine Vorrichtung 1 zum Einspritzen von Wasser einer Brennkraftmaschine 2 gemäß einem erstenHereinafter, referring to FIGS. 1 and 2, an apparatus 1 for injecting water of an internal combustion engine 2 according to a first embodiment will be described
Ausführungsbeispiel im Detail beschrieben. Insbesondere wird die Embodiment described in detail. In particular, the
Brennkraftmaschine 2 nach dem Otto-Prinzip und mit Benzindirekteinspritzung betrieben. In Figur 1 ist die Brennkraftmaschine 2 schematisch dargestellt, welche eineInternal combustion engine 2 according to the Otto principle and operated with gasoline direct injection. In Figure 1, the internal combustion engine 2 is shown schematically, which is a
Vielzahl von Zylindern aufweist. Die Brennkraftmaschine 2 umfasst pro Zylinder einen Brennraum 20, in welchem ein Kolben 21 hin und her bewegbar ist. Ferner weist vorzugsweise die Brennkraftmaschine 2 pro Zylinder einen Einlasskanal 22 auf, über welchen Luft zum Brennraum 20 zugeführt wird. Abgas wird über einen Abgaskanal 23 abgeführt. Hierzu sind am Einlasskanal 22 ein Einlassventil 25 und am Abgaskanal 23 ein Auslassventil 26 angeordnet. Das Bezugszeichen 24 bezeichnet ferner ein Kraftstoffeinspritzventil. Having a plurality of cylinders. The internal combustion engine 2 comprises per cylinder a combustion chamber 20 in which a piston 21 is movable back and forth. Furthermore, preferably the internal combustion engine 2 per cylinder has an inlet channel 22, via which air is supplied to the combustion chamber 20. Exhaust gas is removed via an exhaust duct 23. For this purpose, an inlet valve 25 and the exhaust duct 23, an outlet valve 26 are arranged on the inlet channel 22. The reference numeral 24 also designates a fuel injection valve.
Am Einlasskanal 22 ist ferner ein Wasserinjektor 6 angeordnet, welcher über eine Steuereinheit 10 Wasser in den Einlasskanal 22 der Brennkraftmaschine 2 einspritzt. In diesem Ausführungsbeispiel ist ein Wasserinjektor 6 pro Zylinder vorgesehen. Alternativ kann zur besseren Aufbereitung oder zur Erhöhung der pro Verbrennungszyklus maximal einspritzbaren Wassermenge ein At the inlet channel 22, a water injector 6 is further arranged, which injects water into the inlet channel 22 of the internal combustion engine 2 via a control unit 10. In this embodiment, a water injector 6 per cylinder is provided. Alternatively, for a better treatment or to increase the per combustion cycle maximum injectable amount of water
Wasserinjektor pro Einlassventil angeordnet sein. Be arranged water injector per inlet valve.
In Figur 2 ist die erfindungsgemäße Vorrichtung 1 zur Einspritzung von Wasser gezeigt. Die Wassereinspritzvorrichtung 1 umfasst ein als Pumpe ausgebildetes Förderelement 3 und einen elektrischen Antrieb 4 zum Antreiben der Pumpe 3. Des Weiteren ist ein Wassertank 5 vorgesehen, welcher durch eine erste Leitung 7 mit der Pumpe 3 verbunden ist. Eine zweite Leitung 8 verbindet die Pumpe 3 mit einem Verteiler 9 bzw. einem Rail, an welchem eine Vielzahl von FIG. 2 shows the device 1 according to the invention for injecting water. The water injection device 1 comprises a pumping element designed as a pump 3 and an electric drive 4 for driving the pump 3. Furthermore, a water tank 5 is provided, which is connected by a first line 7 to the pump 3. A second line 8 connects the pump 3 with a distributor 9 or a rail, on which a plurality of
Wasserinjektoren 6 angeschlossen ist. Water injectors 6 is connected.
Zum Einspritzen von Wasser wird das Wasser aus dem Wassertank 5 durch die Pumpe 3 in die Wasserinjektoren 6 zugeführt. Dafür wird bevorzugt ein For injecting water, the water is supplied from the water tank 5 through the pump 3 into the water injectors 6. This is preferred
Kondensat einer Klimaanlage 19 verwendet, wozu die erfindungsgemäße Vorrichtung 1 zur Einspritzung von Wasser eine Füllleitung 1 1 aufweist. Alternativ oder zusätzlich zum Kondensat kann deionisiertes Wasser aus einem nicht gezeigten Nachfülltank in den Wassertank 5 gefördert werden. In der Füllleitung 1 1 sind ein erstes Filterelement 16 und in der ersten Leitung 7 ein zweites Filterelement 17 angeordnet. Condensate an air conditioner 19 used, including the inventive device 1 for injection of water, a filling line 1 1 has. Alternatively or in addition to the condensate, deionized water can be conveyed from a refill tank (not shown) into the water tank 5. In the filling line 1 1, a first filter element 16 and in the first line 7, a second filter element 17 are arranged.
Zum Einstellen des gewünschten Systemdrucks im Verteiler 9 ist ein Druckregler 15 in der Form einer Blende in einer Rücklaufleitung 13 angeordnet, welche die zweite Leitung 8 mit dem Wassertank 5 verbindet. Alternativ kann der To set the desired system pressure in the manifold 9, a pressure regulator 15 is arranged in the form of a diaphragm in a return line 13, which connects the second line 8 with the water tank 5. Alternatively, the
Druckregler 15 als Rückschlagventil ausgebildet sein. Zur Druckregelung ist ferner ein Drucksensor 14 in der zweiten Leitung 8 vorgesehen. Pressure regulator 15 may be formed as a check valve. For pressure control, a pressure sensor 14 is further provided in the second line 8.
Der Wassertank 5 ist in Figur 2 mit Wasser bei einem Maximalwasserspiegel S dargestellt. Innerhalb des Wassertanks 5 ist erfindungsgemäß eine UV-Lampe 12 angeordnet. Die UV-Lampe 12 ist eingerichtet, Ultraviolettstrahlung abzugeben und wird über die Steuereinheit 10 eingeschaltet, um das Wasser im Wassertank 5 zu dekontaminieren. Die UV-Lampe 12 wird in diesem The water tank 5 is shown in Figure 2 with water at a maximum water level S. Within the water tank 5, a UV lamp 12 is arranged according to the invention. The UV lamp 12 is configured to emit ultraviolet radiation and is turned on via the control unit 10 to decontaminate the water in the water tank 5. The UV lamp 12 is in this
Ausführungsbeispiel periodisch in vorbestimmten Intervallen eingeschaltet. Alternativ kann die UV-Lampe 12 dauerhaft betrieben werden, um Embodiment switched on periodically at predetermined intervals. Alternatively, the UV lamp 12 can be operated permanently to
sicherzustellen, dass keine Kontamination im Wassertank 5 geschieht. ensure that no contamination occurs in the water tank 5.
Des Weiteren ist die UV-Lampe 12 im Wassertank 5 verstellbar angeordnet. Somit kann die UV-Lampe 12 je nach Anwendung derart positioniert werden, dass eine optimale Dekontamination des Wassers erfolgt. Furthermore, the UV lamp 12 is arranged adjustable in the water tank 5. Thus, the UV lamp 12 can be positioned depending on the application so that an optimal decontamination of the water takes place.
Ferner ist ein Füllstandsensor 18 in der Vorrichtung 1 vorgesehen. Der Further, a level sensor 18 is provided in the device 1. Of the
Füllstandsensor 18 dient zum Erkennen eines Wasserfüllstands des Level sensor 18 is used to detect a water level of the
Wassertanks 5. Der erkannte Wasserfüllstand kann zur Steuerung der UV- Lampe 12 dienen. So kann z.B. ein Zeitpunkt und/oder die Dauer der Water tanks 5. The detected water level can be used to control the UV lamp 12. Thus, e.g. a time and / or the duration of the
Einschaltung der UV-Lampe 12 abhängig vom erkannten Wasserfüllstand festgelegt werden. Außerdem kann die UV-Lampe 12 basierend auf dem erkannten Wasserfüllstand so verstellt werden, dass die UV-Lampe 12 z.B. immer unterhalb des aktuellen Wasserspiegels im Wassertank 5 ist. Engagement of the UV lamp 12 are determined depending on the detected water level. In addition, the UV lamp 12 may be adjusted based on the detected water level such that the UV lamp 12 is e.g. is always below the current water level in the water tank 5.
Durch die UV-Lampe 12 wird ermöglicht, dass das Wasser der The UV lamp 12 allows the water of the
Wassereinspritzvorrichtung 1 in ökologisch sicherer und einfacher Weise desinfiziert wird. Somit kann ferner eine Verstopfung der Filterelemente 16, 17 vermieden werden, was dazu führt, dass die benötigte zu einspritzende Water injection device 1 is disinfected in an environmentally safe and simple way. Thus, also a blockage of the filter elements 16, 17 be avoided, which leads to the required to be injected
Wassermenge zur Verfügung steht. Somit wird eine ausfallsichere Funktion der Brennkraftmaschine 2 sichergestellt. Die Figur 3 zeigt eine stark vereinfachte Ansicht der WassereinspritzvorrichtungAmount of water is available. Thus, a fail-safe function of the internal combustion engine 2 is ensured. FIG. 3 shows a greatly simplified view of the water injection device
1 gemäß einem zweiten Ausführungsbeispiel der vorliegenden Erfindung, bei welcher einige Komponenten der Vorrichtung 1 weggelassen sind. Das zweite Ausführungsbeispiel unterscheidet sich vom ersten Ausführungsbeispiel von Figuren 1 und 2 grundsätzlich dadurch, dass die UV-Lampe 12 im Wassertank 5 oberhalb des Maximalwasserspiegels S angeordnet ist. Diese Anordnung bietet den Vorteil einer schnellen und gleichmäßigen Bestrahlung des im Wassertank 5 befindlichen Wassers. Da die UV-Lampe 12 nicht im Wasser eingesenkt ist, können zusätzliche Kosten wegen einer komplizierten Abdichtung der UV-Lampe 12 vermieden werden. 1 according to a second embodiment of the present invention, in which some components of the device 1 are omitted. The second embodiment differs from the first embodiment of Figures 1 and 2 basically in that the UV lamp 12 is disposed in the water tank 5 above the maximum water level S. This arrangement offers the advantage of rapid and uniform irradiation of the water in the water tank 5. Since the UV lamp 12 is not sunk in the water, additional costs due to a complicated sealing of the UV lamp 12 can be avoided.
Weiterhin ist das zweite Filterelement 17 unterhalb des Maximalwasserspiegels S positioniert. Somit kann das zweite Filterelement 17 durch die UV-Lampe 12 dekontaminiert werden. In Figur 4 ist eine Vorrichtung 1 zur Einspritzung von Wasser gemäß einem dritten Ausführungsbeispiel der vorliegenden Erfindung gezeigt. Hierbei ist die UV-Lampe 12 an der Füllleitung 1 1 angeordnet. Die Füllleitung 1 1 verbindet die Klimaanlage 19, insbesondere einen Verdampfer der Klimaanlage 19, mit dem Wassertank 5. Ferner ist vorzugsweise die UV-Lampe 12 in Richtung der Zuführung des Wassers in den Wassertank 5 vor dem ersten Filterelement 16 angeordnet. Furthermore, the second filter element 17 is positioned below the maximum water level S. Thus, the second filter element 17 can be decontaminated by the UV lamp 12. FIG. 4 shows a device 1 for injecting water according to a third exemplary embodiment of the present invention. In this case, the UV lamp 12 is arranged on the filling line 1 1. The filling line 1 1 connects the air conditioner 19, in particular an evaporator of the air conditioner 19, with the water tank 5. Furthermore, the UV lamp 12 is preferably arranged in the direction of the supply of water in the water tank 5 in front of the first filter element 16.
Die UV-Lampe 12 wird eingeschaltet, wenn Wasserkondensat aus der The UV lamp 12 is turned on when water condensate from the
Klimaanlage 19 in den Wassertank 5 zugeführt wird. Somit findet eine gezielte Dekontamination des Wassers statt, wodurch eine Kostenersparnis der Air conditioner 19 is supplied to the water tank 5. Thus, a targeted decontamination of the water takes place, whereby a cost savings of
Betriebskosten möglich ist.  Operating costs is possible.
Obwohl die Wassereinspritzvorrichtung 1 gemäß der beschriebenen Although the water injection device 1 according to the described
Ausführungsbeispiele nur eine UV-Lampe 12 aufweist, ist im Rahmen der Erfindung möglich, eine Vielzahl von UV-Lampen zu benutzen, welche in denEmbodiments has only one UV lamp 12, it is possible in the invention to use a plurality of UV lamps, which in the
Leitungen 7, 8, 1 1 und 13 und im Wassertank 5 angeordnet sein können. Lines 7, 8, 1 1 and 13 and can be arranged in the water tank 5.
Dadurch kann sichergestellt werden, dass das einzuspritzende Wasser jederzeit dekontaminiert ist. Dies bewirkt eine ausfallsichere Funktion der Brennkraftmaschine 2. This can ensure that the water to be injected at all times is decontaminated. This causes a fail-safe function of the internal combustion engine. 2

Claims

Vorrichtung zum Einspritzen von Wasser einer Brennkraftmaschine (2), umfassend: Device for injecting water from an internal combustion engine (2), comprising:
einen Wassertank (5) zur Speicherung von Wasser;  a water tank (5) for storing water;
mindestens einen Wasserinjektor (6) zum Einspritzen von Wasser, welcher mit dem Wassertank (5) verbunden ist, mindestens eine UV-Lampe (12), welche eingerichtet ist, Ultraviolettstrahlung abzugeben, und  at least one water injector (6) for injecting water connected to the water tank (5), at least one UV lamp (12) arranged to emit ultraviolet radiation, and
eine Steuereinheit (10), welche eingerichtet ist, die UV-Lampe (12) zum Dekontaminieren des Wassers einzuschalten, und das dekontaminierte Wasser einzuspritzen.  a control unit (10) arranged to turn on the UV lamp (12) to decontaminate the water and to inject the decontaminated water.
Vorrichtung nach Anspruch 1 , wobei die UV-Lampe (12) im Wassertank (5) angeordnet ist. Apparatus according to claim 1, wherein the UV lamp (12) is arranged in the water tank (5).
Vorrichtung nach Anspruch 2, wobei die UV-Lampe (12) oberhalb und/oder unterhalb eines Maximalwasserspiegels (S) des Wassertanks (5) angeordnet ist. Apparatus according to claim 2, wherein the UV lamp (12) above and / or below a maximum water level (S) of the water tank (5) is arranged.
Vorrichtung nach Anspruch 2 oder 3, wobei die UV-Lampe (12) im Wassertank (5) verstellbar angeordnet ist. Apparatus according to claim 2 or 3, wherein the UV lamp (12) in the water tank (5) is adjustably arranged.
Vorrichtung nach einem der vorherigen Ansprüche, ferner umfassend einen Füllstandsensor (18) zum Erkennen eines Füllstands des Wassertanks (5). Device according to one of the preceding claims, further comprising a level sensor (18) for detecting a level of the water tank (5).
Vorrichtung nach Anspruch 1 , ferner umfassend ein Förderelement (3) zur Förderung des Wassers, wobei das Förderelement (3) mittels einer ersten Leitung (7) mit dem Wassertank (5) und mittels einer zweiten Leitung (8) mit dem Wasserinjektor (6) verbunden ist, wobei die UV- Lampe (12) in der ersten Leitung (7) oder in der zweiten Leitung (8) angeordnet ist. Vorrichtung nach Anspruch 1 , wobei die Steuereinheit (10) eingerichtet ist, Wasserkondensat einer Klimaanlage (19) und/oder Nachfüllwasser über eine Füllleitung (1 1 ) in den Wassertank (5) zuzuführen, wobei die UV-Lampe (12) an der Füllleitung (1 1 ) vor dem Wassertank (5) angeordnet ist. Device according to claim 1, further comprising a conveying element (3) for conveying the water, the conveying element (3) being connected to the water tank (5) by means of a first line (7) and to the water injector (6) by means of a second line (8). is connected, wherein the UV lamp (12) in the first conduit (7) or in the second conduit (8) is arranged. Apparatus according to claim 1, wherein the control unit (10) is adapted to supply water condensate of an air conditioner (19) and / or refill water via a filling line (1 1) in the water tank (5), wherein the UV lamp (12) on the filling line (1 1) in front of the water tank (5) is arranged.
Vorrichtung nach Anspruch 7, ferner umfassend ein erstes Filterelement (16), welches in der Füllleitung (1 1 ), insbesondere stromabwärts nach der UV-Lampe (12), vorgesehen ist. Apparatus according to claim 7, further comprising a first filter element (16) which in the filling line (1 1), in particular downstream of the UV lamp (12), is provided.
Vorrichtung nach einem der vorherigen Ansprüche, ferner umfassend ein zweites Filterelement (16), welches in der ersten Leitung (7), insbesondere in einem im Wassertank (5) liegenden Leitungsabschnitt, vorgesehen ist. Device according to one of the preceding claims, further comprising a second filter element (16) which in the first conduit (7), in particular in a water tank (5) lying in the line section is provided.
Brennkraftmaschine, welche eine Vorrichtung (1 ) zum Einspritzen von Wasser nach einem der vorherigen Ansprüche umfasst. Internal combustion engine comprising a device (1) for injecting water according to one of the preceding claims.
Brennkraftmaschine nach Anspruch 10, welche eingerichtet ist, nach dem Otto-Prinzip und mit Benzin betrieben zu werden. Internal combustion engine according to claim 10, which is adapted to be operated on the Otto principle and with gasoline.
Verfahren zum Einspritzen von Wasser in eine Brennkraftmaschine (2), wobei das Wasser mittels einer UV-Lampe (12), welche Method for injecting water into an internal combustion engine (2), wherein the water by means of a UV lamp (12), which
Ultraviolettstrahlung abgibt, dekontaminiert wird und mittels einer Vorrichtung (1 ) zum Einspritzen von Wasser eingespritzt wird. Ultraviolet radiation gives off, is decontaminated and is injected by means of a device (1) for injecting water.
Verfahren nach Anspruch 12, wobei die UV-Lampe (12) zyklisch oder dauerhaft eingeschaltet wird. The method of claim 12, wherein the UV lamp (12) is cyclically or permanently turned on.
Verfahren nach Anspruch 12 oder 13, wobei die UV-Lampe (12) eingeschaltet wird, wenn Wasserkondensat aus einer Klimaanlage (19) und/oder Nachfüllwasser in den Wassertank (5) zugeführt wird. The method of claim 12 or 13, wherein the UV lamp (12) is turned on when water condensate from an air conditioner (19) and / or refill water is supplied to the water tank (5).
EP16717359.0A 2015-05-07 2016-04-18 Device and method for injecting water of an internal combustion engine Withdrawn EP3292296A1 (en)

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DE102015208477A1 (en) 2016-11-10
KR20180003555A (en) 2018-01-09
WO2016177556A1 (en) 2016-11-10
US20180128212A1 (en) 2018-05-10

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