WO2019076524A1 - Injecteur de dosage de carburant liquide et de carburant gazeux - Google Patents

Injecteur de dosage de carburant liquide et de carburant gazeux Download PDF

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Publication number
WO2019076524A1
WO2019076524A1 PCT/EP2018/073760 EP2018073760W WO2019076524A1 WO 2019076524 A1 WO2019076524 A1 WO 2019076524A1 EP 2018073760 W EP2018073760 W EP 2018073760W WO 2019076524 A1 WO2019076524 A1 WO 2019076524A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle needle
shoulder
outer nozzle
injector
bore
Prior art date
Application number
PCT/EP2018/073760
Other languages
German (de)
English (en)
Inventor
Jochen Wessner
Martin Katz
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
Priority to CN201880067756.4A priority Critical patent/CN111226033A/zh
Publication of WO2019076524A1 publication Critical patent/WO2019076524A1/fr

Links

Classifications

    • 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
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
    • F02M21/026—Lift valves, i.e. stem operated valves
    • F02M21/0263—Inwardly opening single or multi nozzle valves, e.g. needle valves
    • F02M21/0266—Hollow stem valves; Piston valves; Stems having a spherical tip
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0686—Injectors
    • F02D19/0694—Injectors operating with a plurality of fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
    • F02D19/10—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous
    • F02D19/105—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels peculiar to compression-ignition engines in which the main fuel is gaseous operating in a special mode, e.g. in a liquid fuel only mode for starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
    • 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
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • F02M43/04—Injectors peculiar thereto
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/008—Arrangement of fuel passages inside of injectors
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
    • F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
    • 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
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Definitions

  • the invention relates to an injector, as used for dosing liquid and gaseous fuel, for example, to introduce these fuels in a combustion chamber of an internal combustion engine.
  • Injectors are known from the prior art with which both gaseous and liquid fuel can be metered into a combustion chamber of an internal combustion engine.
  • Such, for example from DE 10 2014 225 167 AI known injector has an outer nozzle needle, which is arranged longitudinally displaceable in an injector body.
  • the nozzle needle has at its combustion chamber-side end a sealing surface, with which it cooperates with a seat surface for opening and closing a Eindüsqueritess, can flow through the gaseous fuel from a pressure chamber within the injector.
  • the nozzle needle is guided in a cylindrical guide section in the injector body, wherein a leakage gap remains between the guide bore in the injector body and the nozzle needle.
  • a longitudinal bore is formed, in which an inner nozzle needle is arranged, the injection openings, which are formed within the outer nozzle needle, opens and closes.
  • the inner nozzle needle With the inner nozzle needle, a liquid fuel is metered, with which the longitudinal bore of the outer nozzle needle is filled.
  • a bore is provided, through the guide bore and the outer nozzle needle through into the longitudinal bore of the outer nozzle needle enough.
  • this inlet bore pierces the throttle gap, which exists between the outer nozzle needle and the guide bore in the injector, so that liquid fuel can diffuse into this throttle gap. Since the throttle gap opens into the filled with gaseous fuel pressure chamber, in this way always liquid fuel enters the pressure chamber, is entrained with the gas flow and so also introduced into the combustion chamber, where it burns. In normal operation of the fuel injection valve, this is not a problem, since only a very small amount of liquid fuel passes into the gas-filled pressure chamber and can be easily injected with the gas stream with. A small amount may even be desirable to both lubricate the outer nozzle needle and to bring some liquid fuel to the outer nozzle seat where it also lubricates and reduces wear.
  • the known fuel injector can also be used to inject only liquid fuel into the combustion chamber.
  • the outer nozzle needle is held in its closed position, so that the gas-filled pressure chamber remains closed, while the inner nozzle needle is moved and thereby dosed the liquid fuel.
  • This operating state can be approached specifically or be required, for example, when the gaseous fuel is not or not available with the required pressure.
  • a large amount of liquid fuel can pass through the throttle gap into the pressure space filled with gaseous fuel for a longer period of pure operation with liquid fuel until it is completely filled with liquid fuel. If the gas injection is resumed at a later time, then this liquid fuel must be pushed out of the pressure chamber, which can lead to uncontrolled combustion and affects the proper operation of the injector.
  • the injector according to the invention has the advantage that operation with liquid fuel is also problematic over a relatively long period of time. is possible without impairing the ability to inject gaseous fuel.
  • the injector has an injector body in which a pressure chamber which can be filled with gaseous fuel is formed, in which a piston-shaped, outer nozzle needle is arranged so as to be longitudinally displaceable, which opens and closes an injection cross section through its longitudinal movement, through which gaseous fuel can flow.
  • a guide portion is formed, with which the outer nozzle needle is guided in a guide bore of the injector, wherein between the guide portion and the guide bore, a throttle gap is formed.
  • the guide section of the outer nozzle needle is stepped, so that a shoulder is formed in the guide section, which shoulder lies opposite a shoulder formed in the injector body. Between the shoulder and the shoulder, an elastic sealing element is arranged, which is clamped between the shoulder and the shoulder for sealing the throttle gap when the outer nozzle needle is in its closed position.
  • the outer nozzle needle In an operation in which only liquid fuel is ejected, the outer nozzle needle remains in its closed position. However, the liquid fuel continues to penetrate into the throttle gap between the guide bore in the injector and the outer nozzle needle so that it would flow into the pressure chamber with the consequences already described above.
  • the sealing element which is clamped between the shoulder and the shoulder, the throttle gap is effectively sealed, so that even with a longer operation of the injector with liquid fuel sealing of the gaseous fuel filled pressure chamber is ensured against the liquid fuel. Even after prolonged operation with liquid fuel can thus easily be switched to a gas operation or to a gas and liquid operation.
  • a longitudinal bore is formed in the outer nozzle needle into which liquid fuel can be introduced.
  • This can be injected from there and serves, for example, to produce an ignitable mixture in the combustion chamber, which serves to ignite the gaseous fuel.
  • To supply the longitudinal bore with liquid fuel is provided in an advantageous manner that the throttle gap is connected to a supply bore for the liquid fuel.
  • the guide bore has two sections with different diameters, through which the shoulder is formed.
  • a stepped bore can be produced with little effort, so that a production is possible at low cost.
  • the shoulder is preferably formed annular disc-shaped and also the shoulder on the outer nozzle needle, so that the elastic sealing element can be clamped well between these two surfaces.
  • the sealing element is designed as a sealing ring, which is received in a further advantageous embodiment in an annular groove formed in the shoulder.
  • sealing rings are known as standard components in the prior art and can be produced at cost.
  • the desired surface pressure in the area between the shoulder and the heel can be achieved.
  • Figure 1 shows a longitudinal section through an injector according to the invention with its essential components
  • FIG. 2b shows two states of the injector, wherein the section of FIG. 1 denoted by II is shown enlarged. Description of the embodiment
  • FIG. 1 shows a longitudinal section of an injector according to the invention.
  • the injector 1 has an injector body 2 in which a pressure chamber 3 which can be filled with gaseous fuel is formed.
  • a pressure chamber 3 which can be filled with gaseous fuel is formed.
  • an outer nozzle needle 5 is arranged longitudinally displaceable, which is piston-shaped and at its lower in the drawing, the combustion chamber end facing a conical sealing surface 6, with the outer nozzle needle 5 with a nozzle seat 7 for opening and closing a Eindüsqueritess interacts.
  • the injection cross-section is here designed in the form of several injection openings 9, which point in the injector 2 obliquely outward.
  • the pressure chamber 3 can be filled with gaseous fuel at an injection pressure via a gas inlet bore 10 formed in the injector body 2, the gaseous fuel flowing through the annular space remaining between the outer nozzle needle 5 and the wall of the pressure chamber 3 to the nozzle seat 7 and between the sealing surface 6 and the nozzle seat 7 through into the Eindüsö Maschinenen. 9
  • the outer nozzle needle 5 In its end region facing away from the nozzle seat 7, the outer nozzle needle 5 forms a guide section 13, with which the outer nozzle needle 5 is guided in a guide bore 14. Between the guide portion 13 and the
  • the outer nozzle needle 5 With its end facing away from the nozzle seat 7, the outer nozzle needle 5 defines an outer control chamber 32, in which an outer closing spring 33 is arranged under Druckvor- voltage, so exerted by the outer closing spring 33, a force on the outer nozzle needle 5 in the direction of the nozzle seat 7 becomes.
  • a longitudinal bore 19 is formed, in which a piston-shaped, inner nozzle needle 20 is received longitudinally displaceable.
  • the inner nozzle needle 20 forms at its end an inner sealing surface 21, with which it cooperates with an inner nozzle seat 22, which is formed at the end of the longitudinal bore 19 in the outer nozzle needle 5, for opening and closing a plurality of injection openings 24.
  • the longitudinal bore 19 and thus the annular space remaining between the inner nozzle needle 20 and the wall of the bore 19 can be filled with a liquid fuel under high pressure, which when released injection openings 24 can be ejected through this.
  • the inner nozzle needle 20 defines together with the outer nozzle needle 5 an inner control chamber 29, in which an inner closing spring 30 is received under compressive bias, which exerts a closing force on the inner nozzle needle 20 in the direction of the inner nozzle seat 22.
  • an inlet bore 26 is formed in the injector body 2, which runs parallel to the outer nozzle needle 5 in the upper area of the injector body 2, finally kinks and opens into the longitudinal bore 19 of the outer nozzle needle 5.
  • the inlet bore 26 passes through the throttle gap 15, which is formed between the outer nozzle needle 5 and the guide bore 14, so that the throttle gap 15 is connected to the inlet bore 26.
  • a first inlet throttle 28 which branches off from the inlet bore 26 and is formed in the injector body 2 and in the outer nozzle needle 5.
  • the inner control chamber 29 is also connected via a flow restrictor, not shown in the drawing with a low pressure chamber, so that the fuel pressure within the inner control chamber 29 can be changed by opening and closing the drain throttle and the hydraulic closing force on the inner nozzle needle 20 is variable ,
  • a second inlet throttle 35 is furthermore formed in the injector body 2, so that the high fuel pressure in the inlet bore 26 also prevails in the outer control chamber 32.
  • the outer control chamber 32 is also connected via an outlet throttle 36 with the low-pressure chamber, so that the fuel pressure in the outer control chamber 32 can be adjusted and thus the hydraulic closing force on the outer nozzle needle 5.
  • the guide bore 14 is designed as a stepped bore and has a first
  • Section 114 with a larger diameter and a second section 214 with a smaller diameter are formed in the guide bore 14 on the injector body 2, which is annular disk-shaped and thus forms a right angle in cross-section with the longitudinal axis 27 of the outer nozzle needle 5.
  • the guide section 13 of the outer nozzle needle 5 also has two sections with different diameters, so that a throttle gap 15 is formed both between the outer nozzle needle 5 and the first section of the guide bore 114 and between the second guide section 214 and the outer nozzle needle 5.
  • FIG. 1 shows an enlarged view of the designated II section of Figure 1.
  • the elastic sealing element 18 is partially received in a formed in the shoulder 17 annular groove 23. If the outer nozzle needle 5 in its closed position, ie in contact with the nozzle seat 7, the elastic sealing element 18 is clamped between the shoulder 16 and the shoulder 17 and thereby seals the throttle gap 15. Via the inlet bore 26, which is connected to the throttle gap 15, liquid fuel is continuously introduced into the throttle gap 15 and would continue to flow without the elastic sealing element 18 into the pressure chamber 3. By the elastic sealing element 18 of this flow is prevented, as long as the outer nozzle needle 5 is in its closed position.
  • liquid fuel preferably diesel fuel
  • the sealing element 18 is again clamped between the shoulder 16 and the shoulder 17 and closes the throttle gap 15.
  • liquid fuel would flow continuously into the pressure chamber 3 without further measures, but would no longer be entrained by the gaseous fuel from there. Accordingly, the liquid fuel would accumulate in the pressure chamber 3 as long as the injector is operated only with liquid fuel.
  • the outer nozzle needle 15 remains closed and moves only the inner nozzle needle 20, so the injector according to the invention, however, the throttle gap 15 is sealed by the sealing element 18, so that even with prolonged operation of the pressure chamber 3 remains free of liquid fuel.
  • the injection of gaseous fuel can be resumed without problems without the pressure chamber 3 having to be emptied beforehand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un injecteur (1) destiné à doser un carburant liquide et un carburant gazeux. L'injecteur comprend un corps d'injecteur (2) dans lequel est formée une chambre de pression qui est remplie de carburant gazeux (3) et dans laquelle une aiguille de buse extérieure (5) en forme de piston est disposée de manière à pouvoir coulisser longitudinalement, laquelle aiguille de buse ouvre et ferme par son mouvement longitudinal une section transversale d'injection (9) par laquelle un carburant gazeux peut s'écouler hors de la chambre de pression (3). Au niveau de l'aiguille de buse extérieure (5) est formée une partie de guidage (13) qui guide l'aiguille de buse extérieure (5) dans un alésage de guidage (14) du corps d'injecteur (2) de manière à former un intervalle d'étranglement (15) entre la partie de guidage (13) et l'alésage de guidage (14 ). La partie de guidage (13) de l'aiguille de buse extérieure (5) est conçue de manière étagée de sorte que dans la partie de guidage (13) est formé un gradin (16) qui fait face à un épaulement (17) formé dans le corps d'injecteur (2). Un élément d'étanchéité élastique (18) est disposé entre le gradin (16) et l'épaulement (17), lequel élément d'étanchéité est serré entre le gradin (16) et l'épaulement (17) pour assurer l'étanchéité de l'intervalle d'étranglement (15) lorsque l'aiguille de buse extérieure (5) est dans sa position fermée.
PCT/EP2018/073760 2017-10-17 2018-09-04 Injecteur de dosage de carburant liquide et de carburant gazeux WO2019076524A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880067756.4A CN111226033A (zh) 2017-10-17 2018-09-04 用于配量液态和气态燃料的喷射器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017218527.9A DE102017218527A1 (de) 2017-10-17 2017-10-17 Injektor zum Dosieren von flüssigem und gasförmigem Kraftstoff
DE102017218527.9 2017-10-17

Publications (1)

Publication Number Publication Date
WO2019076524A1 true WO2019076524A1 (fr) 2019-04-25

Family

ID=63557437

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/073760 WO2019076524A1 (fr) 2017-10-17 2018-09-04 Injecteur de dosage de carburant liquide et de carburant gazeux

Country Status (3)

Country Link
CN (1) CN111226033A (fr)
DE (1) DE102017218527A1 (fr)
WO (1) WO2019076524A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110823578A (zh) * 2019-10-25 2020-02-21 中国航发北京航科发动机控制系统科技有限公司 一种航空发动机喷嘴的模拟试验装置
DE102020006653A1 (de) * 2020-10-30 2022-05-05 Daimler Truck AG Injektorhülse für einen Injektor, sowie Einblaseinrichtung und Verbrennungskraftmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002073023A1 (fr) * 2001-03-12 2002-09-19 Robert Bosch Gmbh Injecteur
DE102012012450A1 (de) * 2011-06-24 2012-12-27 Caterpillar Inc. Zweikraftstoffinjektor für ein Common-Rail-System
DE102014225167A1 (de) 2014-12-08 2016-06-09 Robert Bosch Gmbh Kraftstoffzumessventil für eine Brennkraftmaschine und Verfahren zum Betreiben desselben
EP3153696A1 (fr) * 2015-10-07 2017-04-12 Robert Bosch Gmbh Soupape d'injection d'un combustible gazeux et/ou liquide
WO2017153170A1 (fr) * 2016-03-10 2017-09-14 Robert Bosch Gmbh Ensemble buse pour injecteur de carburant servant à l'injection d'un carburant gazeux et/ou liquide, et injecteur de carburant

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013022260B3 (de) * 2013-12-30 2015-05-21 L'orange Gmbh Dual-Fuel-Kraftstoffinjektor
DE102014205454A1 (de) * 2014-03-24 2015-09-24 Robert Bosch Gmbh Gasinjektor mit Doppelventilnadel
US20140346254A1 (en) * 2014-08-07 2014-11-27 Caterpillar Inc. Fuel injector for gaseous injection
CN104675592B (zh) * 2015-02-13 2018-01-16 江苏大学 一种带有自润滑功能的天然气/柴油双燃料喷射器
DE102015209134A1 (de) * 2015-05-19 2016-11-24 Robert Bosch Gmbh Zweistoffinjektor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002073023A1 (fr) * 2001-03-12 2002-09-19 Robert Bosch Gmbh Injecteur
DE102012012450A1 (de) * 2011-06-24 2012-12-27 Caterpillar Inc. Zweikraftstoffinjektor für ein Common-Rail-System
DE102014225167A1 (de) 2014-12-08 2016-06-09 Robert Bosch Gmbh Kraftstoffzumessventil für eine Brennkraftmaschine und Verfahren zum Betreiben desselben
EP3153696A1 (fr) * 2015-10-07 2017-04-12 Robert Bosch Gmbh Soupape d'injection d'un combustible gazeux et/ou liquide
WO2017153170A1 (fr) * 2016-03-10 2017-09-14 Robert Bosch Gmbh Ensemble buse pour injecteur de carburant servant à l'injection d'un carburant gazeux et/ou liquide, et injecteur de carburant

Also Published As

Publication number Publication date
DE102017218527A1 (de) 2019-04-18
CN111226033A (zh) 2020-06-02

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