EP2649297A1 - Distributeur de carburant pour de l'essence et du gaz naturel - Google Patents

Distributeur de carburant pour de l'essence et du gaz naturel

Info

Publication number
EP2649297A1
EP2649297A1 EP11778599.8A EP11778599A EP2649297A1 EP 2649297 A1 EP2649297 A1 EP 2649297A1 EP 11778599 A EP11778599 A EP 11778599A EP 2649297 A1 EP2649297 A1 EP 2649297A1
Authority
EP
European Patent Office
Prior art keywords
distributor
fuel
fuel distributor
space
housing
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.)
Granted
Application number
EP11778599.8A
Other languages
German (de)
English (en)
Other versions
EP2649297B1 (fr
Inventor
Ferdinand Reiter
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 EP2649297A1 publication Critical patent/EP2649297A1/fr
Application granted granted Critical
Publication of EP2649297B1 publication Critical patent/EP2649297B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
    • F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
    • 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
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F02M63/0275—Arrangement of common rails
    • F02M63/0285—Arrangement of common rails having more than one common rail
    • F02M63/029—Arrangement of common rails having more than one common rail per cylinder bank, e.g. storing different fuels or fuels at different pressure levels per cylinder bank

Definitions

  • the invention relates to a fuel feeder, in particular a combined
  • Fuel distributor rail for fuel injection systems of mixture-compression, spark-ignited internal combustion engines are provided.
  • a mixture-compression, spark-ignition internal combustion engine may be suitable for operation with gasoline and natural gas.
  • different fuel injection systems with separate injection valves are required for the supply of gas and the supply of natural gas.
  • the injection valves for the fuel injection can via a
  • the fuel meter according to the invention with the features of claim 1 has the advantage that the design of a fuel injection system is improved. Specifically, the number of required components can be reduced and thus the required assembly time can be shortened. In addition, it is possible to reduce the required installation space, in particular on the internal combustion engine.
  • the measures listed in the dependent claims are advantageous
  • the fuel feeder can distribute natural gas via the first fuel distributor to a plurality of injection valves, which can be connected to the connection points of the first fuel distributor.
  • at least two connection points are provided for the injection valves.
  • Another connection point is used for an inlet, which is connected in the assembled state with a gas storage.
  • the natural gas is preferably as
  • compressed natural gas stored in a gas storage for example, at pressures of about 20 M Pa (200 bar).
  • a compressed natural gas is also called CNG.
  • the concept of natural gas is not limited to natural gas but is generally understood.
  • the natural gas can also be artificially
  • gasoline is to be understood generally and not limited to pure mineral oil products. Specifically, the gasoline may also have a certain proportion of alcohols, especially ethanol.
  • natural gas also means natural gas-like fuels and the term gasoline also gasoline-like fuels.
  • a partition wall arranged in the interior of the housing is provided, which divides the interior of the housing into a first distributor space for the first
  • the first distributor space can also have the function of a memory.
  • the second distributor space can also have the function of a memory. By such memory may arise
  • a separating element is arranged in the interior of the housing, which comprises the partition wall, that the separating element rests against an inner wall of the housing at least in sections on the first distributor space and that the separating element at least partially faces the inner wall of the second distribution space Housing rests.
  • the separating element has a Z-shaped profile.
  • the separating element can in this case be designed as an internal sword which separates the first distributor space from the second distributor space and ensures a seal between the two distributor spaces.
  • the separating element has a high rigidity. This can do that
  • first distributor space is configured at least approximately as a cuboid first distributor space. It is also advantageous that the second distributor space is configured at least approximately as a cuboid second distributor space. Moreover, it is advantageous that the first distributor space and the second distributor space are formed next to one another in the interior of the housing. It is also advantageous that the first distributor space and the second distributor space at least
  • first distributor space and the second distributor space extend side by side and parallel to one another through the interior of the housing.
  • Distribution spaces allow a compact design of the common housing and a favorable arrangement of the respective connection points to the
  • Fuel manifolds As a result, the entire fuel feeder can be designed to save space.
  • the interior of the housing is configured at least approximately cuboid. By a partition, this can be done a division into the two cuboid distribution spaces. It is also possible that the first fuel distributor and the second fuel distributor are arranged side by side and parallel to each other.
  • the first Brennstoffverteiler schizophrenia is at least partially formed of a metallic material and that the second Brennstoffverteiler Swiss is at least partially formed of a plastic-based material, wherein the common housing partially formed of the metallic material and partially of the plastic-based material is.
  • a combination of a steel rail for natural gas application and a plastic rails for gasoline application is possible. This allows a reliable distribution and
  • connection points of the first Brennstoffverteiler Wegs and the connection points of the second fuel distributor are advantageously at the common
  • FIG. 1 shows a schematic, partial, spatial representation of a fuel dispenser according to an exemplary embodiment of the invention.
  • FIG. 1 shows a fuel distributor 1 in an excerptional, schematic, spatial illustration according to an embodiment of the invention.
  • the fuel feeder 1 can serve, in particular, as a combined fuel distributor strip for fuel injection systems of mixture-compression, spark-ignited internal combustion engines.
  • Fuel feeder 1 has a first fuel distributor 2 and a second
  • the first fuel distributor 2 is used for
  • connection point 5 is designed as a feed for natural gas.
  • natural gas here preferably compressed natural gas (CNG) is used.
  • CNG compressed natural gas
  • the two fuel distributor pieces 2, 3 are in a common
  • the housing 10 has a first side 11 and a second side 12.
  • the first side 1 1 can be configured from a first part 11, while the second side 12 is configured from a second part 12.
  • the parts 1 1, 12 can then also off
  • the first part 11 may be formed from a metallic material, in particular a steel.
  • the second part 12 may be formed of a plastic based material.
  • a one-piece design is possible in which the housing 10 and thus both sides 1 1, 12 are formed of a single material, in particular a steel.
  • a partition wall 16 is arranged, the interior 15 of the housing 10 in a first distribution space 17 for the first
  • the Fuel distributor piece 3 divides.
  • the first distributor space 17 can also be the Function of a memory, in particular pressure and volume memory, have.
  • the second distributor chamber 18 can also have the function of a store, in particular a pressure and volume store.
  • In the first distribution chamber 17 is in operation by high pressure compressed natural gas, which is stored, for example, in a suitable memory with a pressure of about 20 MPa (200 bar) and is fed via the inlet 5 in the first distribution chamber 17.
  • the second distribution chamber 18 of the second fuel distributor 3 is under a certain pressure standing gasoline fuel, which is conveyed via a pump from a fuel tank into the second distribution chamber 8.
  • the dividing wall 16 separates the compressed natural gas in the first fuel distributor 2 from the otherwise provided gasoline in the second fuel distributor 3.
  • a partition member 19 is provided with a Z-shaped profile.
  • the housing 10 is shown together with the separating element 19 in an open sectional view, so that the Z-shaped profile is shown in section.
  • the separating element 19 has three sections 16, 20, 21 as a result of this embodiment.
  • the section 20 is located on the side 1 1 of the first fuel distributor 2.
  • the section 21 is located on the side 12 of the second fuel distributor 3.
  • the two sections 20, 21 are interconnected by the partition 16.
  • a right angle between the sections 16, 20 and between the sections 16, 21 is predetermined in this embodiment in the profile.
  • the sections 20, 21 are oriented parallel to one another.
  • the section 20 of the separating element 19 bears against a section 22 of an inner wall 23 of the housing 10.
  • the section 21 bears against a section 24 of the inner wall 23.
  • the separating element 19 is designed here with a high rigidity.
  • the separating element 19 serves as an internal sword, which, by virtue of its rigidity, permits not only a separation of the two distribution spaces 17, 18 but also an advantageous dynamic behavior.
  • the interior 15 of the housing 10 is designed cuboid in this embodiment. By the division of the interior 15 of the housing 10 by means of
  • Separating element 19 with Z-shaped profile also results in a cuboid configuration of the first distributor space 17 and a cuboid configuration of the second
  • Distribution space 18 the two distribution spaces 17, 18 of equal size. Further, the two distribution spaces 17, 18 are adjacent to each other and these also extend parallel to each other through the housing 10 of the fuel meter 1. As a result, the first fuel distributor 2 and the second fuel distributor 3 are arranged side by side and parallel to each other.
  • an injection valve 25 for injecting natural gas and an injection valve 26 for injecting gasoline are connected to the fuel feeder 1.
  • securing clips 27, 28 are provided, by means of which the injection valves 25, 26 are mounted on the respective connection point 4, 6.
  • the connection points 4, 6 can in this case be designed as valve cups 4, 6.
  • a suitable injection valve can also be attached to the connection points 7, 8 or to the further connection points, not shown, adjacent to the connection points 7, 8, of the first fuel distributor 2. It should be noted, however, that the fuel distributor 1 can be manufactured independently of such injection valves and can also be distributed without injectors.
  • the fuel feeder 1 also has holders 29, 30.
  • the holders 29, 30 can be used as fastening holders 29, 30 for fastening the entire fuel feeder 1 to a suction pipe
  • the injection valves 25, 26 may in this case be assigned to a combustion chamber of a cylinder of the internal combustion engine.
  • the fuel feeder 1 has a sensor 31, which determines the pressure and the temperature in the first distributor chamber 17 of the first fuel distributor 2 and the pressure and the temperature in the second distributor chamber 18 of the second
  • Fuel distributor piece 3 measures. Here, via a single electrical connection point 32, an electrical connection with a control device or the like is possible in order to transmit the measurement signals or measurement data. Thus, the number of required signal or data transmission cables is optimized compared to a design with two separate fuel distributor pieces.
  • the fuel feeder 1 of the embodiment of the invention can be configured in a compact manner. This reduces the required space in the vehicle. In addition, eliminates a separate fuel distributor main pipe with associated holders and end caps. Furthermore, the number of assembly items is reduced, which also has a favorable effect on the assembly time. The number of mounting parts on the intake manifold or cylinder can also be reduced. In addition, the fuel feeder 1 with little design effort to different cylinder spacings or

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un distributeur de carburant (1) qui se présente en particulier sous la forme d'un rail de distribution de carburant combiné pour des installations d'injection de carburant pour moteurs à combustion interne à allumage commandé et compression du mélange, comprenant une première pièce de distribution de carburant (2) servant à distribuer du gaz naturel à plusieurs points de raccordement (4) de cette première pièce de distribution de carburant (2), et une deuxième pièce de distribution de carburant (3) servant à distribuer de l'essence à plusieurs points de raccordement (6, 7, 8) de cette deuxième pièce de distribution de carburant (3). La première pièce de distribution de carburant (2) et la deuxième pièce de distribution de carburant (3) sont intégrées dans un même carter (10), de qui permet d'obtenir une configuration compacte pour le distributeur de carburant (1), l'encombrement nécessaire ainsi que le nombre de pièces individuelles de montage étant réduits, et les durées de montage pouvant être diminuées.
EP11778599.8A 2010-12-09 2011-11-03 Distributeur de carburant pour de l'essence et du gaz naturel Active EP2649297B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010062699 DE102010062699A1 (de) 2010-12-09 2010-12-09 Brennstoffzuteiler für Benzin und Erdgas
PCT/EP2011/069317 WO2012076265A1 (fr) 2010-12-09 2011-11-03 Distributeur de carburant pour de l'essence et du gaz naturel

Publications (2)

Publication Number Publication Date
EP2649297A1 true EP2649297A1 (fr) 2013-10-16
EP2649297B1 EP2649297B1 (fr) 2015-02-25

Family

ID=44906121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11778599.8A Active EP2649297B1 (fr) 2010-12-09 2011-11-03 Distributeur de carburant pour de l'essence et du gaz naturel

Country Status (5)

Country Link
EP (1) EP2649297B1 (fr)
CN (1) CN103249942B (fr)
BR (1) BR112013013922A2 (fr)
DE (1) DE102010062699A1 (fr)
WO (1) WO2012076265A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013217515A1 (de) 2013-09-03 2015-03-05 Robert Bosch Gmbh Anordnung mit einem Kraftstoffzuteiler und mehreren Haltern
DE102015210756A1 (de) * 2015-06-12 2016-12-15 Robert Bosch Gmbh Gasinjektoranordnung, Betriebsverfahren für eine Gasinjektoranordnung und Brennkraftmaschine
WO2019115857A1 (fr) * 2017-12-14 2019-06-20 Wärtsilä Finland Oy Élément de distribution de fluide pour moteur à piston et moteur à piston équipé dudit élément de distribution de fluide
CN113217242B (zh) * 2021-05-26 2022-04-19 河南柴油机重工有限责任公司 适应于v型双燃料发动机的共轨系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131537A1 (de) * 1991-09-21 1993-04-01 Bosch Gmbh Robert Brennstoffverteiler
US6588406B2 (en) * 2000-06-07 2003-07-08 Radu Oprea Dual fuel metering and supply system for internal combustion engines
ITBO20040114A1 (it) * 2004-02-27 2004-05-27 Magneti Marelli Powertrain Spa Collettore carburante bi-materiale per un motore a combustione interna con iniezione diretta del carburante e metodo per la sua realizzazione
DE602004013423T2 (de) * 2004-05-17 2009-06-04 Ford Global Technologies, LLC, Dearborn Kraftstoffverteilerkomponent
EP2009277B1 (fr) * 2007-06-28 2011-08-10 Ford Global Technologies, LLC Système de moteur à combustion interne et procédé dans un tel système de moteur
CN201513255U (zh) * 2009-06-01 2010-06-23 奉化市皓盛铁路电务器材有限公司 双燃料混合动力汽车的燃气共轨装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012076265A1 *

Also Published As

Publication number Publication date
EP2649297B1 (fr) 2015-02-25
DE102010062699A1 (de) 2012-06-21
BR112013013922A2 (pt) 2016-09-13
CN103249942A (zh) 2013-08-14
WO2012076265A1 (fr) 2012-06-14
CN103249942B (zh) 2017-03-01

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