WO2019115167A1 - Dispositif d'alimentation en carburant pour moteur à combustion interne - Google Patents

Dispositif d'alimentation en carburant pour moteur à combustion interne Download PDF

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Publication number
WO2019115167A1
WO2019115167A1 PCT/EP2018/081726 EP2018081726W WO2019115167A1 WO 2019115167 A1 WO2019115167 A1 WO 2019115167A1 EP 2018081726 W EP2018081726 W EP 2018081726W WO 2019115167 A1 WO2019115167 A1 WO 2019115167A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
delivery device
heat exchanger
fuel delivery
pressure
Prior art date
Application number
PCT/EP2018/081726
Other languages
German (de)
English (en)
Inventor
Florian Herzenjak
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 WO2019115167A1 publication Critical patent/WO2019115167A1/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
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F02M21/0239—Pressure or flow regulators therefor
    • 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
    • F02M21/0245—High pressure fuel supply systems; Rails; Pumps; Arrangement of valves
    • 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
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/005—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture using a heat-pipe
    • 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
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/16—Other apparatus for heating fuel
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/18—Feeding by means of driven pumps characterised by provision of main and auxiliary pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
    • F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
    • F02B2043/103—Natural gas, e.g. methane or LNG used as a fuel
    • 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
    • F02M21/06—Apparatus for de-liquefying, e.g. by heating
    • 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
    • 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 a fuel delivery device for a fuel injection device of an internal combustion engine according to the preamble of the independent claim. 1
  • Such a fuel delivery device is known from DE 10 2012 200 706 Al be known.
  • This fuel delivery device has a delivery pump through which fuel is conveyed to the suction side of a high-pressure pump.
  • fuel is delivered to a high-pressure region, from which at least indirectly at least one injector of the fuel injection device is supplied with power material.
  • Between the feed pump and the suction side of the high pressure pump performs a bypass connection to a low pressure area.
  • the fuel delivery device with the features of claim 1 has the advantage that the temperature of the fuel flowing back into the storage container before is reduced because the thermal energy of the fuel fes in the return line is transferred to the fuel in the heat pipe. Furthermore, less energy has to be introduced into the fuel delivery device from outside in order to cause a change in the state of aggregation, for example in the liquid phase fuel (LNG).
  • LNG liquid phase fuel
  • the gaseous fuel is stored at a temperature of -140 ° C. Due to the low temperatures, the fuel is in the liquid phase. For motor operation, however, significantly higher temperatures are required (about -20 ° C). Thus, the fuel is heated by the engine cooling water via the second heat exchanger.
  • excess, heated fuel is deactivated via the pressure regulator and a return line.
  • the fuel passes through the return line either between the conveyor pump and the high-pressure pump or in the reservoir.
  • the thermal energy of the fuel in the return line can be transmitted by means of the first heat exchanger to the fuel in the heat pipe who the.
  • the cooling system of the engine is easier to control.
  • the temperature of the fuel in the return line is significantly reduced ver.
  • larger amounts of fuel can be fed back to the high pressure pump or on the other hand, the temperature increase in Vorratsbe be reduced container.
  • the second heat exchanger thermal energy from another vehicle system for example, from the cooling circuit of the engine by engine cooling water to the fuel of the heat transfer is transferable, since in this way needed for the engine operation significantly higher ren temperatures can be achieved can.
  • a return tank which is arranged in the return line, as in this way, the thermal energy that is present in the lessness arises.
  • a valve which is arranged between the return tank and the first heat exchanger, since the amount of fuel flowing to the first heat exchanger can be controlled by the valve.
  • a branch line which connects the return line and a first plinsab section, wherein the first line section between the feed pump and the high-pressure pump is arranged, is advantageous because the amount of fuel flowing back into the reservoir can be reduced if the fuel, the thermal conditions met to be able to be fed between pump and high pressure pump.
  • a branch valve which is arranged between the return line and branch line, is advantageous because in this way the fuel in the return line depending on the temperature of the fuel in the return line either in the reservoir or in the first line section before the high pressure pump can be passed.
  • the first heat exchanger between the high-pressure pump and the second heat exchanger is arranged, since in this way the thermal energy, which must be transferred from a further vehicle system to the fuel in the heat conduction, can be reduced.
  • Show it: 1 shows a fuel delivery device of an internal combustion engine in a schemati shear representation according to a first embodiment
  • FIG. 2 shows a fuel delivery device of an internal combustion engine in schemati shear representation according to a second embodiment.
  • a fuel injection device of an internal combustion engine which has a fuel delivery device 1.
  • the Kraftstoffstofördördereinrich device 1 has a feed pump 10, which sucks fuel from a reservoir 12.
  • the drive of the feed pump 10 can mechanically via clutch, gear or timing belt via the high-pressure pump 16 or via its own drive, e.g. take an electric motor.
  • the feed pump 10 can be arranged either in the reservoir 12 or outside of the reservoir 12 and compress the fuel to a first Druckni level, while the high-pressure pump 16 of the feed pump 10 is arranged nachge and the fuel from the first pressure level to a second Druckni level, in particular a pressure level between 500 and 600 bar, compacted.
  • the high-pressure region comprises a buffertank 18 and a high-pressure accumulator 20, wherein the high-pressure accumulator 20 is connected to at least one injector 21 for injecting fuel into the combustion chamber.
  • a pressure regulator 19 is arranged between the buffer tank 18 and the high-pressure accumulator 20, a pressure regulator 19 is arranged.
  • the pressure regulator 19 allows adjustment of the desired Pressure conditions in the high-pressure accumulator 20, by regulating the amount of fuel flowing from the buffertank 18 in the high-pressure accumulator 20.
  • Excess fuel can be removed from the high pressure area by a return line 23 which is connected to the reservoir 12 who the.
  • the return line 23 may, as shown in Figure 1, be connected to the pressure regulator 19.
  • the return line 23 also verbun with the high-pressure accumulator 20 via a shut-off valve to be.
  • the return line 23 is connected to both the pressure control valve 19, and with the high-pressure accumulator 20.
  • the first heat exchanger 31 transmits thermal energy of the fuel, which is located in the return line 23, to the fuel of the heat line 17th
  • the fuel delivery device is designed to deliver liquid gas as fuel.
  • the gas is added in the liquid state, in particular as gas in the liquid phase.
  • the gas In order to keep the gas in the liquid state, the gas must be stored at very low temperatures in the reservoir 12.
  • the reservoir 12 has, in a preferred embodiment, an insulation in order to avoid a heat input from the outside into the fuel.
  • the feed pump 10 can be arranged ent either in the reservoir 12 or outside of the reservoir 12.
  • the second heat exchanger 32 is adapted to carry thermal energy from egg nem further vehicle system to the fuel of the heat pipe 17 to over.
  • the first heat exchanger 31 is disposed between the high-pressure pump 16 and the second heat exchanger 32.
  • a branch line 25, the sudlauflei device 23 and a first line section 13 connect.
  • the first jesab section 13 is between the feed pump 10 and the high-pressure pump 16 is arranged.
  • the branch valve 26 may also be designed so that only a certain part of the back-flowing fuel flows into the first line section 13, while the remaining portion of the back-flowing fuel in the Vorratsbe container 12 flows back.
  • a fuel delivery device of an internal combustion engine is shown in a schematic representation.
  • the wesentli Chen components of the fuel delivery device do not differ from the embodiment shown in Figure 1.
  • a return tank 24 is arranged in the return line 23.
  • the valve 27 may control the amount of fuel flowing to the first heat exchanger 31. This is possible either by an electrically controllable valve 27, which has the states “open” or “closed” and is controlled accordingly.
  • the valve 27 can also be realized as a throttle with variable cross-section, so that the respective flow rate of fuel can be changed.
  • the return tank 24 can also be realized by a larger pipe diameter of the return line 23, which represents a storage volume between the high-pressure region and the valve 27.
  • the injectors 21 may be formed as dual-fluid injectors and in addition to the fuel, which is present as a gaseous medium or gas in the liquid or gas phase also inject another fuel into the combustion chamber zen.
  • the additional fuel can be present, for example, as diesel fuel and promotes ge by at least one hydraulic pump from a tank in a Hochdruckrail before the other fuel is supplied to the dual-fluid injectors.

Landscapes

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

Abstract

Dispositif d'alimentation en carburant (1) destiné à un dispositif d'injection de carburant d'un moteur à combustion interne, comprenant une pompe d'alimentation (10) et au moins une pompe haute pression (16), le carburant étant refoulé par la pompe d'alimentation (10) à partir d'un réservoir de stockage (12) vers le côté aspiration de la pompe haute pression (16), et le carburant étant refoulé par la pompe haute pression (16) dans un réservoir tampon (18) par l'intermédiaire d'une conduite thermique (17), un régulateur de pression (19) étant disposé entre le réservoir tampon (18) et un accumulateur haute pression (20). Un premier échangeur de chaleur (31) et un deuxième échangeur de chaleur (32) sont disposés entre la pompe haute pression (16) et le réservoir tampon (18), le premier échangeur de chaleur (31) permettant de transférer l'énergie thermique du carburant d'une conduite de retour (23), qui est reliée au réservoir de stockage (12), au carburant de la conduite thermique (17).
PCT/EP2018/081726 2017-12-15 2018-11-19 Dispositif d'alimentation en carburant pour moteur à combustion interne WO2019115167A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017222926.8A DE102017222926A1 (de) 2017-12-15 2017-12-15 Kraftstofffördereinrichtung für eine Brennkraftmaschine
DE102017222926.8 2017-12-15

Publications (1)

Publication Number Publication Date
WO2019115167A1 true WO2019115167A1 (fr) 2019-06-20

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Application Number Title Priority Date Filing Date
PCT/EP2018/081726 WO2019115167A1 (fr) 2017-12-15 2018-11-19 Dispositif d'alimentation en carburant pour moteur à combustion interne

Country Status (2)

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DE (1) DE102017222926A1 (fr)
WO (1) WO2019115167A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114837859A (zh) * 2022-05-20 2022-08-02 重庆润通科技有限公司 一种燃气发电机组的发动机燃气输送管路加热控制方法

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Publication number Priority date Publication date Assignee Title
CH717460A1 (de) 2020-05-28 2021-11-30 Liebherr Machines Bulle Sa System zum Bereitstellen eines gasförmigen Kraftstoffs.
CN118066042A (zh) * 2022-11-24 2024-05-24 丰田自动车株式会社 液氢系统
DE102023200257B3 (de) 2023-01-13 2024-05-29 Magna Energy Storage Systems Gesmbh Kryotank umfassend eine Entnahmevorrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2422832A1 (fr) * 1978-04-10 1979-11-09 Elf Antargaz Procede et installation pour alimenter en gaz de petrole liquefie, notamment en butane, un moteur a explosion, tel qu'un moteur de vehicule automobile
DE3442980A1 (de) * 1984-11-24 1986-05-28 Knecht Filterwerke Gmbh, 7000 Stuttgart Einrichtung zum filtrieren und vorwaermen von dieselkraftstoff
US7832380B1 (en) * 2009-01-28 2010-11-16 Brunswick Corporation Marine fuel system with an ullage control device
DE102012200706A1 (de) 2012-01-19 2013-07-25 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine
EP2693034A1 (fr) * 2011-03-22 2014-02-05 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Fluide frigorigène mixte non explosif destiné à un dispositif de re-liquéfaction dans un système permettant de fournir un combustible à un moteur à injection de gaz naturel haute pression
EP2913510A1 (fr) * 2012-10-24 2015-09-02 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Système pour traiter un gaz liquéfié sur un navire
WO2016172803A1 (fr) * 2015-04-30 2016-11-03 Westport Power Inc. Système de gestion de pression intelligent pour systèmes de fluide cryogénique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2422832A1 (fr) * 1978-04-10 1979-11-09 Elf Antargaz Procede et installation pour alimenter en gaz de petrole liquefie, notamment en butane, un moteur a explosion, tel qu'un moteur de vehicule automobile
DE3442980A1 (de) * 1984-11-24 1986-05-28 Knecht Filterwerke Gmbh, 7000 Stuttgart Einrichtung zum filtrieren und vorwaermen von dieselkraftstoff
US7832380B1 (en) * 2009-01-28 2010-11-16 Brunswick Corporation Marine fuel system with an ullage control device
EP2693034A1 (fr) * 2011-03-22 2014-02-05 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Fluide frigorigène mixte non explosif destiné à un dispositif de re-liquéfaction dans un système permettant de fournir un combustible à un moteur à injection de gaz naturel haute pression
DE102012200706A1 (de) 2012-01-19 2013-07-25 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung für eine Brennkraftmaschine
EP2913510A1 (fr) * 2012-10-24 2015-09-02 Daewoo Shipbuilding & Marine Engineering Co., Ltd. Système pour traiter un gaz liquéfié sur un navire
WO2016172803A1 (fr) * 2015-04-30 2016-11-03 Westport Power Inc. Système de gestion de pression intelligent pour systèmes de fluide cryogénique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114837859A (zh) * 2022-05-20 2022-08-02 重庆润通科技有限公司 一种燃气发电机组的发动机燃气输送管路加热控制方法

Also Published As

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