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WO2009130068A1 - Dispositif compact d'injection avec actionneur pneumatique à induit plat - Google Patents

Dispositif compact d'injection avec actionneur pneumatique à induit plat Download PDF

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Publication number
WO2009130068A1
WO2009130068A1 PCT/EP2009/051278 EP2009051278W WO2009130068A1 WO 2009130068 A1 WO2009130068 A1 WO 2009130068A1 EP 2009051278 W EP2009051278 W EP 2009051278W WO 2009130068 A1 WO2009130068 A1 WO 2009130068A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
injection device
fuel
armature
piston
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.)
Ceased
Application number
PCT/EP2009/051278
Other languages
German (de)
English (en)
Inventor
Walter Maeurer
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
Priority to CN200980114452.XA priority Critical patent/CN102016286B/zh
Publication of WO2009130068A1 publication Critical patent/WO2009130068A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/04—Pumps 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
    • F02M55/007—Venting means
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/027—Injectors structurally combined with fuel-injection pumps characterised by the pump drive electric
    • 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
    • F02M61/08—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 the valves opening in direction of fuel flow
    • 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
    • F02M69/04—Injectors peculiar thereto
    • F02M69/047—Injectors peculiar thereto injectors with air chambers, e.g. communicating with atmosphere for aerating the nozzles
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
    • F02M2200/505—Adjusting spring tension by sliding spring seats

Definitions

  • the present invention relates to an injection device with a fuel pump, a pressure regulator, an injector and an air actuator in a compact design.
  • Injectors are known in the prior art in various configurations. Especially for cost and space reasons require small internal combustion engines, which have only one or only two cylinders and a small displacement, independent solutions. Areas of use of such small internal combustion engines are, for example, two-wheelers or tricycles or lawnmowers, etc.
  • Known injectors usually comprise in a tank a fuel pump with a pressure regulator, the fuel pump injecting fuel at a predetermined pressure into a duct, e.g. a rail or similar, promotes.
  • an injector is arranged, which, controlled by a control device, injects fuel into a suction pipe or directly into a combustion chamber.
  • such injection devices are very expensive and particularly expensive, so that they also make small internal combustion engines very expensive.
  • a fuel injection device with electronic control in which an injector is arranged close to a pump piston. Further, in this case, a pre-pressure valve is provided for exerting an admission pressure on the fuel in an initial phase of a pressure stroke of the piston in the return line of the fuel to the tank.
  • the admission valve evacuates a part of the fuel located in a pressure chamber in the return line. In this way, in particular the formation of vapor bubbles in the injector can be reduced.
  • the structure is relatively complicated and the device takes up a large amount of space.
  • the injection device according to the invention with the features of claim 1 has the advantage that it has a very compact structure. Furthermore, the injection device according to the invention can be produced in a particularly simple and cost-effective manner.
  • the injection device comprises a fuel pump, a pressure regulator for Control of an injection pressure, an injector and an air actuator, which are integral parts of an injection module.
  • the injection module is a compact, small-sized component.
  • the pressure regulator is an integral part of the injector.
  • the injection device according to the invention further comprises a fuel supply line, a fuel return line and an air bypass line.
  • the fuel pump comprises a piston, a pump anchor and a pump chamber in which fuel can be pressurized.
  • the air actuator comprises a valve seat and a flat anchor.
  • the pump anchor and the flat armature can be actuated by means of a common coil, so that a common actuator with only one electrical connection can be provided for the air actuator and the fuel pump.
  • the injection module can be completely pre-assembled so that it only needs to be connected to the necessary connections and can be installed directly into a vehicle.
  • the components of the injection module are preferably arranged in a common housing of the injection module. In addition to the compactness of the injection module is another great advantage that other components for the injection module can be minimized.
  • the pump armature of the fuel pump is annular and a return path for fuel from the injection module back to the tank passes through the annular pump armature.
  • a particularly compact construction of the injection module is achieved and, furthermore, heat can be removed from the injection module into the tank by the return of the fuel through the pump anchor.
  • a flow through the pump armature with only a slight pressure loss is possible.
  • the annular pump anchor is arranged substantially vertically, so that any existing gas bubbles in the fuel can rise through the pump anchor and can be vented into the tank. Since the fuel is heated when flowing through the pump armature due to the absorbed waste heat of the solenoid, outgassing from the heated fuel is enhanced. This circulation of fuel also ensures that cooler fuel is always supplied to the injection module.
  • the flat armature of the Lucasstellers is annular. This can ensure that the magnetic field lines enter and exit axially into the flat armature. Furthermore, the annular flat armature also makes it possible to guide the fuel inside the flat armature centrally through the injection module.
  • the air actuator on three passage openings, which are formed partially ring-shaped or kidney-shaped. At the edge of the passage openings, sealing surfaces are formed in the form of either two concentric annular sealing surfaces or by providing a bead region provided along the circumference of each of the passage openings. Through these sealing surfaces is at a small stroke a relatively large Released area, so that a large amount of air can be provided with a relatively small ⁇ ffhungshub.
  • the flat armature is fixed by means of a return spring to a housing of the injection module.
  • the return spring is preferably an annular plate spring which fixes the flat armature on the housing.
  • a connection passage between the pump space and a suction space in the axial direction of the pump piston is arranged below a top dead center of the pump piston. This ensures that at the beginning of a pressure build-up phase of the fuel pump in the pump chamber can not be built immediately pressure and any existing gases through the
  • Connecting passage can be pushed out of the pump chamber into the suction. Furthermore, the pump piston can be accelerated quickly to its target speed, since at the beginning of the pressure build-up phase, only a small hydraulic counterforce is present through the fuel. When the connecting passage is then closed by the piston, the actual pressure build-up phase begins in the pump chamber.
  • connection passage between the pump space and the suction space is preferably arranged in a lower annular channel area of the suction space. More preferably, a filter element is arranged between the lower annular channel region and a main region of the suction chamber. In this way it can be ensured that only the amount of fuel sucked into the pumping chamber is filtered and that it is not necessary to filter the entire quantity of fuel supplied into the intake chamber. Thus, the circulating part of the fuel is not filtered and a longer shelf life of the filter is achieved.
  • the pump piston has a recess which extends on the outer circumference of the pump piston up to a pressure surface of the pump piston directed to the pump chamber.
  • the recess establishes a connection between the pump chamber and the suction chamber at the beginning of a pressure build-up phase of the fuel pump and after a predetermined stroke away from the pump piston, the connection is interrupted via the recess.
  • the recess is preferably a longitudinal groove in the piston and thus provides a slot control during pressure buildup in the pumping space.
  • a cylinder for the pump piston is integrally formed on the housing of the injection module. This achieves a further simplification and cost reduction of the injection device.
  • the cylinder may e.g. to be a liner.
  • the present invention relates to an internal combustion engine which comprises exactly one cylinder or exactly two cylinders and a fuel injection device according to the invention.
  • the internal combustion engine comprises a fuel tank, which is arranged above the injection module.
  • the fuel pump can be designed very small.
  • FIG. 1 shows a schematic view of a small motor with an injection device according to a first embodiment of the invention
  • Figure 2 is a schematic view of an injection module of the injection device according to the first
  • FIG. 3 shows a schematic plan view of a sealing seat of the air regulator
  • FIG. 4 shows a schematic sectional view along the line IV-IV of FIG. 3,
  • FIG. 5 shows a schematic plan view of an alternative sealing seat
  • Figure 6 is a schematic sectional view taken along the line VI-VI of Figure 5, and
  • Figure 7 is a schematic view of an injection module of the injection device according to a second embodiment of the invention.
  • FIG. 1 shows schematically the structure of the small motor 1, which is designed as a single-cylinder engine.
  • the small engine 1 comprises a cylinder 3, a reciprocating piston 4, a control unit 5 and a tank 6.
  • the tank 6 is connected to an injection module 2 via a fuel supply line 6a.
  • a fuel return line 6b goes from the injection module 2 back to the tank 6.
  • the tank 6 is arranged above the injection module 2.
  • the injection module 2 is shown very schematically and includes a fuel pump, an injector with integrated pressure regulator, and an air actuator, so that the injection module 2 is very compact.
  • the small engine 1 further comprises a throttle valve 7, which is arranged in a suction pipe 8.
  • a spark plug 9 On the cylinder 3, a spark plug 9, an intake valve 10 and an exhaust valve 11 are further arranged.
  • the reference numeral 12 designates a bypass line for air, which branches off air from the intake manifold 8 from a region in the flow direction of the air in front of the throttle valve 7 and leads directly to the integrated into the injection module 2 air actuator.
  • An outlet 12z of the bypass line 12 opens in the intake manifold 8 behind the throttle valve. 7
  • the small engine 1 further comprises an exhaust pipe 13, which is released or closed by the exhaust valve 11. Further, an oxygen sensor 14 is provided on the exhaust pipe 13, which is connected to the control unit 5, and the control unit 5 is further comprising a cooling water sensor 15, an oil temperature sensor 16 and a sensor unit 17 for detecting a throttle position, a temperature in the intake manifold 8 and a Pressure in the suction pipe 8 connected.
  • the control unit 5 controls the injection module 2 on the basis of the received signals.
  • the injector thus comprises the injection module 2 with a fuel pump, a pressure regulator, an injector and an air actuator and a
  • Fuel supply line of a fuel return line and an air bypass connection can be designed to be particularly compact and compact. Furthermore, the injection device according to the invention can be produced very inexpensively and in particular be pre-assembled in advance as a complete injection module, so that it only needs to be installed in the small engine 1 as a compact assembly.
  • the integration of the four items fuel pump, pressure regulator, injector and air actuator in the injection module thus a simple and inexpensive manufacturability is guaranteed.
  • the fuel pump and the air actuator are actuated by a common actuator.
  • the injection device 2 according to the invention can be used, for example, in small engines of two-wheelers or lawnmowers.
  • FIG. 2 shows the injection module 2 in detail.
  • the fuel pump 20a, the pressure regulator 20b, the injector 20c and the aerator 2Od are integrated.
  • a housing 25 is provided, which is injection molded from plastic.
  • the pressure regulator 20b is part of the injector 20c.
  • a common actuator simultaneously actuates the fuel pump 20a and the aerator 2Od.
  • the common actuator comprises a coil 21, a pump armature 22 and a flat armature 23 for the air actuator.
  • the housing 25 is closed by means of a cover 24.
  • the pump armature 22 is annular and has a cylindrical shape.
  • a passage 22a is thus formed, through which fuel can flow from the fuel supply line 6a to the fuel return line 6b.
  • the coil 21 is provided with a plastic extrusion 21 a and is surrounded by a magnetic circuit 40.
  • Reference numerals 41 and 42 denote a first magnetic separation point and a second magnetic separation point, respectively.
  • An electrical connection 44 for the coil 21 is formed laterally on the housing 25.
  • the fuel pump 20b also comprises a cylindrical piston 26 and a cylindrical bushing 35.
  • the piston 26 is guided in the bushing 35.
  • a first return spring 27 brings the piston into the starting position shown in Figure 2, which represents one end of a suction stroke.
  • an annular flange 26 a is formed on the piston 26.
  • the piston 26 is connected via a bracket 31 with the annular pump armature 22.
  • the bracket 31 may be arranged loosely between the pump armature 22 and the piston 26 or be connected to one or both parts.
  • the first return spring 27 is supported on an inner annular flange region 25c of the housing 25 (see FIG.
  • the injection module 2 further comprises a suction chamber 30, in which the fuel supply line 6a opens.
  • the suction space 30 includes an annular channel portion 30 a which is disposed at a lower portion of the suction space adjacent to the annular flange portion 25 c of the housing 25.
  • the annular channel region 30a is separated from the remaining suction chamber 30 by means of a filter 37.
  • the fuel pump 20a further includes a pumping space 29 in which fuel can be pressurized to be injected into the suction pipe 8 via the injector 20c.
  • the injector 20c is disposed at one end of the injection means and integrally includes the pressure regulator 20b of the injection module.
  • the pressure regulator 20b comprises a metering throttle 32 and a check valve 33, which is prestressed by means of a third return spring 34.
  • the third return spring 34 is supported on a support ring 38, which is fixed to the housing 25.
  • the aerator 2Od comprises a flat armature 23, a sealing seat 43 and an air-filled space 45.
  • the flat armature 23 is fixed to the housing 25 by means of a second restoring spring 28, which in this embodiment is an annular flat spring.
  • the second return spring 28 may, for example, between the housing 25 and the cover 24 by means
  • the sealing seat 43 is shown in more detail in FIGS. 3 and 4.
  • the openings 51, 52, 53 are here bounded on the inside by a protruding inner ring 54 and on the outside by a protruding outer ring 55.
  • the inner ring 54 and the outer ring 55 thereby form the actual sealing surface on which the flat armature 23 seals.
  • the areas between the openings 51, 52, 53 are slightly lower than the sealing surface on the inner ring 54 and the outer ring 55, so that the entire ring cross-section between the inner ring 54 and outer ring 55 during the opening of
  • Flat anchor 23 is released.
  • the air-filled space 45 is arranged below the flat armature 23, which ensures an opening movement of the flat armature 23 when the coil 21 is energized.
  • connection passage 36 is further provided between the suction chamber 30 and the pump chamber 29, a connection passage 36 is further provided.
  • the connection passage 36 opens in particular in the annular channel area 30a of the suction space 30.
  • the connecting passage 36 comprises an opening 35a in the bushing 35 and an opening 25b in the annular flange area 25c of the housing 25.
  • the connection passage 36 is slightly below an upper one Dead center of the piston 26. In this way, a slot control for the pressure build-up in the pump chamber 29 is obtained, since a pressure build-up in the pump chamber 29 only occurs when the piston 26 has completely overpassed the connection passage 36 and the connection passage is closed by a side wall of the piston 26.
  • a pressure surface 26b of the piston 26 directed to the pumping space 29 forms the control edge.
  • Figure 2 shows a position of the piston at the end of a suction stroke.
  • the coil 21 is energized, so that on the one hand the flat armature 23 is moved in the direction of arrow A and the annular pump armature 22 is moved in the direction of arrow B.
  • the flat armature 23 is moved, so that the air actuator opens 2Od, the fuel pump 20a is not actuated.
  • the flat armature 23 is also annular, a remindströmpfad can be placed through the center of the injection module. This results in a particularly compact design. It should also be noted that the magnetic circuit 40 may be provided as an insert and when spraying the
  • Housing 25 can be injected into the housing.
  • the bushing 35 is preferably pressed by a press fit into the housing 25.
  • the injection module can be produced particularly inexpensively and with a small number of parts.
  • Figures 5 and 6 show an alternative embodiment of a flat armature 23.
  • Flat anchor 23 also three openings 51, 52, 53 on. However, a sealing seat is provided separately along an outer circumference of each opening 51, 52, 53.
  • This alternative flat armature has the particular advantage that lower forces are necessary for opening, as compared to the flat armature shown in Figures 3 and 4, a reduced by the intermediate regions between the openings 51, 52, 53 area with the bypass line 12 in contact stands. It should also be noted that depending on the sealing requirements on the flat armature 23 for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal, for a better seal
  • Figure 7 shows an injection device according to a second embodiment of the invention, wherein identical or functionally identical parts are denoted by the same reference numerals as in the preceding embodiment.
  • the second embodiment corresponds essentially to the first embodiment, wherein, in contrast to the first embodiment, a different slot control is provided for the pump chamber 29 in the second embodiment.
  • a groove 50 formed in the axial direction X-X is provided in the piston 26. Via the groove 50, a connection between the pump chamber 29 and the suction chamber 30 is established when the piston 26 is located in an upper portion of a piston stroke. A pressure build-up in the pump chamber 29 thus begins only when the piston 26 has been moved until the groove 50 is covered by the liner 35 and the connection between the pump chamber 29 and the suction chamber 30 is interrupted.
  • This structure is particularly easy to provide, without, for example, openings must be provided in the flange 25c and the sleeve 35.
  • the described embodiments thus show an injection module 2, which is constructed very compact and by the annular design of the flat armature 23 and the
  • Pump armature 22 allows axial flow through the injection module with fuel. As a result, in particular heat-related problems can be avoided, since the circulating fuel, the resulting heat during operation can be absorbed by the fuel and can be returned to the tank. As a result, a particularly high level of operational reliability can be achieved.

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

Abstract

La présente invention concerne un dispositif d'injection, comprenant une pompe à carburant (20a), un régulateur de pression (20b), un injecteur (20c) et un actionneur pneumatique (20d), caractérisé par le fait que la pompe à carburant (20a), l'injecteur (20c) et l'actionneur pneumatique (20d) font partie intégrante d'un module d'injection compact (2), par le fait que le régulateur de pression (20b) fait partie intégrante de l'injecteur (20c), par le fait que la pompe à carburant (20a) comprend un piston (26), un induit de pompe (22) et une chambre de pompe (31), par le fait que l'actionneur pneumatique (20d) comprend un siège de soupape (54, 55) et un induit plat (23) et par le fait que l'induit de pompe (22) et l'induit plat (23) peuvent être actionnés à l'aide d'une bobine commune (21).
PCT/EP2009/051278 2008-04-23 2009-02-04 Dispositif compact d'injection avec actionneur pneumatique à induit plat Ceased WO2009130068A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200980114452.XA CN102016286B (zh) 2008-04-23 2009-02-04 具有扁平衔铁式空气调节器的紧凑型喷射装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810001331 DE102008001331A1 (de) 2008-04-23 2008-04-23 Kompakte Einspritzvorrichtung mit Flachanker-Luftsteller
DE102008001331.5 2008-04-23

Publications (1)

Publication Number Publication Date
WO2009130068A1 true WO2009130068A1 (fr) 2009-10-29

Family

ID=40600098

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/051278 Ceased WO2009130068A1 (fr) 2008-04-23 2009-02-04 Dispositif compact d'injection avec actionneur pneumatique à induit plat

Country Status (4)

Country Link
CN (1) CN102016286B (fr)
DE (1) DE102008001331A1 (fr)
TW (1) TWI484094B (fr)
WO (1) WO2009130068A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011083787A1 (de) * 2011-09-29 2013-04-04 Hengst Gmbh & Co. Kg Kraftstoffpumpanordnung
WO2015028235A1 (fr) * 2013-08-30 2015-03-05 Robert Bosch Gmbh Module d'injecteur à comptage d'impulsions
CN104454274B (zh) * 2014-12-03 2017-09-29 中国第一汽车股份有限公司无锡油泵油嘴研究所 一种喷油器
CN105332835A (zh) * 2015-11-25 2016-02-17 哈尔滨工程大学 常开式重油用双阀电控喷油系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19725160A1 (de) * 1996-06-19 1998-01-08 Futaba Denshi Kogyo Kk Kraftstoff-Einspritzvorrichtung für einen Modellmotor
EP1340906A1 (fr) * 2000-11-17 2003-09-03 Mikuni Corporation Dispositif d'injection de carburant a commande electronique
DE102007046316A1 (de) * 2007-09-27 2009-04-02 Robert Bosch Gmbh Kompakte Einspritzvorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5488933A (en) * 1994-02-14 1996-02-06 Pham; Roger N. C. Fuel supply system for miniature engines
DE10333697A1 (de) * 2003-07-24 2005-02-24 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19725160A1 (de) * 1996-06-19 1998-01-08 Futaba Denshi Kogyo Kk Kraftstoff-Einspritzvorrichtung für einen Modellmotor
EP1340906A1 (fr) * 2000-11-17 2003-09-03 Mikuni Corporation Dispositif d'injection de carburant a commande electronique
DE102007046316A1 (de) * 2007-09-27 2009-04-02 Robert Bosch Gmbh Kompakte Einspritzvorrichtung

Also Published As

Publication number Publication date
CN102016286A (zh) 2011-04-13
CN102016286B (zh) 2014-10-29
TW201002936A (en) 2010-01-16
TWI484094B (zh) 2015-05-11
DE102008001331A1 (de) 2009-10-29

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