EP2427650A1 - Fuel injector having pressure sensor - Google Patents
Fuel injector having pressure sensorInfo
- Publication number
- EP2427650A1 EP2427650A1 EP10708198A EP10708198A EP2427650A1 EP 2427650 A1 EP2427650 A1 EP 2427650A1 EP 10708198 A EP10708198 A EP 10708198A EP 10708198 A EP10708198 A EP 10708198A EP 2427650 A1 EP2427650 A1 EP 2427650A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- pressure
- fuel injector
- sensor
- valve
- 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
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 116
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 31
- 239000007924 injection Substances 0.000 claims description 31
- 238000007789 sealing Methods 0.000 description 14
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
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
- 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
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
-
- 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
- F02M57/005—Fuel-injectors combined or associated with other devices the devices being sensors
-
- 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
- F02M63/0012—Valves
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
- F02M63/008—Hollow valve members, e.g. members internally guided
-
- 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
- F02M2200/24—Fuel-injection apparatus with sensors
-
- 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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
Definitions
- the invention relates to a fuel injector with a pressure sensor.
- Pressure sensors in fuel injection systems for measuring fuel pressure are known in the art. Such known pressure sensors are usually arranged in a central pressure accumulator of the injection system and there acted upon by the high pressure of the fuel in the injection system.
- the fuel pressure in modern common rail systems can amount to several thousand bars.
- the pressure sensors must therefore be sealed against the high pressure of the fuel in the injection system and thus represent a complex and costly component.
- a fuel injector according to the invention has a high-pressure region which contains at least temporarily under high injection pressure fuel during operation.
- a fuel injector according to the invention also has a low pressure rich, which contains no fuel during operation and / or is connected to a drain, so that in the low pressure range, no high fuel pressure builds up and there is a lower pressure than in the high pressure area.
- In the low-pressure region is a sensor and a transmission means is arranged so that it at least temporarily exerts a force corresponding to the pressure of the fuel in the high pressure region, on the sensor.
- the invention also includes a fuel injection system with a fuel pump, at least one fuel injector according to the invention and a control valve.
- a fuel injector according to the invention with an integrated pressure sensor can be dispensed with a central pressure accumulator in which the pressure sensor is mounted.
- Such an injection system can be realized with few components and thus cost-effectively.
- the pressure sensor is arranged in the fuel injector itself, the pressure can be measured easily in systems that have no central accumulator. Since the pressure sensor is arranged in the low-pressure region of the fuel injector, the sensor need not have a special high-pressure seal. It can therefore be used simple and inexpensive sensors.
- the force exerted on the sensor by the transmission means is proportional to the pressure in the high pressure region.
- the fuel injector has a control valve and the sensor is disposed in the low pressure region of the control valve. In the low pressure range of such a control valve, the sensor is particularly low attachable.
- the fuel injector has a pressure compensated control valve.
- a fuel injector with a pressure-balanced control valve can be opened and closed with little force and thus enables particularly short switching times.
- Such a control valve can be actuated by a small and inexpensive actuator.
- the control valve has a sleeve-shaped valve needle and the transmission means is designed as a movable pressure pin within the valve needle.
- Such a valve with a pressure pin arranged within a sleeve-shaped valve needle enables a particularly simple transmission of the pressure from the high-pressure region to a sensor arranged in the low-pressure region and can be produced simply and inexpensively.
- control valve is actuated by an electromagnetic actuator.
- Electromagnetic actuators have proven themselves when used in fuel injectors and are inexpensive to produce.
- control valve is actuatable by a piezoelectric actuator.
- Piezoelectric actuators enable particularly short switching times.
- a compensation element is arranged between the pressure pin and the sensor. Such a compensation element makes it possible to compensate for angular tolerances between the sensor and the pressure pin and thus to improve the accuracy of the measurement.
- the fuel injection system comprises at least two fuel injectors, wherein the fuel pump, the fuel injectors and the control valve are connected in series with each other so that the outlet of a fuel injector is connected to the inlet of a following fuel injector.
- Figure 1 is a sectional view of a fuel injector according to the invention.
- FIG. 2 is a schematic representation of a fuel injection system with at least one fuel injector according to the invention.
- 1 shows a sectional view of a fuel injector 1 according to the invention.
- the fuel injector 1 comprises a cylindrical nozzle body 2 shown in the lower region of FIG. 1 and a cylindrical union nut 4 arranged above the nozzle body 2, which is firmly screwed to the nozzle body 2.
- the injector 1 is closed at its end shown in the figure 1 above by a closure plate 41 which is hydraulically screwed tightly with the nut 4.
- a high-pressure chamber 32 is formed, which can be filled by an external fuel pump 28 via a fuel inlet 30 with fuel under high pressure.
- injection ports 3 can flow through the fuel from the high-pressure chamber 32 in a combustion chamber, not shown, which surrounds the lower end of the nozzle body 2.
- the upper, the injection openings 3 opposite end of the high-pressure chamber 32 is bounded by a valve plate 24 which is clamped by the union nut 4 fixed to the nozzle body 2 and the high-pressure chamber 32 closes hydraulically tight.
- a nozzle needle 6 with an upper end 6a facing the valve plate 24 and a lower end 6b facing the injection openings 3 are arranged.
- the nozzle needle 6 may consist of one piece or be composed of several parts which are operatively connected to each other.
- the upper end 6 a of the nozzle needle 6 is formed by the nozzle needle opening, which is formed in the side 17 of the control chamber 18 facing away from the valve plate 24. Det is introduced into the control chamber 18 so that the volume of the control chamber 18 by moving the nozzle needle 6 is parallel to the longitudinal axis variable.
- a shoulder 14 is formed on the circumference of the nozzle needle 6.
- a nozzle needle spring 16 is arranged between the shoulder 14 and the side facing away from the valve plate 24 side 17 of the control chamber 18 that it supports the nozzle needle 6 elastically on the projection of the valve plate 24.
- the lower end 6b of the nozzle needle 6 is pressed by the nozzle needle spring 16 against the injection openings 3 in the lower region of the nozzle body 2 that the lower end 6b of the nozzle needle 6 closes the injection openings 3 and no fuel from the high-pressure chamber 32 through the injection openings 3 in flows the combustion chamber.
- a pressure stage 7 is formed above the lower portion 6b of the nozzle needle 6, a pressure stage 7 is formed.
- the high-pressure chamber 32 is filled with high-pressure fuel and the fuel exerts an upward force on the nozzle needle 6 via the pressure stage 7.
- An inlet throttle 20 formed in a side wall of the control chamber 18 hydraulically connects the control chamber 18 to the high-pressure chamber 32, so that the same pressure as in the high-pressure chamber 32 prevails in the hydraulic balance in the control chamber 18.
- valve plate 24 The side facing away from the nozzle needle 6 of the control chamber 18 is bounded by the valve plate 24.
- a drain hole 21 is formed in the region of the control chamber 18, which connects the control chamber 18 with a cylindrically shaped valve chamber 19, which is above the control chamber 18 and the high pressure chamber 32 opposite side of the valve plate 24, hydraulically connected.
- an outlet throttle 22 is formed in the drain hole 21 .
- the flow through the drain hole is adjustable.
- a wall 35 which encloses the valve space 19
- two drain holes 36 are formed, which connect the valve chamber 19 hydraulically with a trained above the control plate 24 in the union nut 4 low-pressure chamber 36.
- the low-pressure chamber 36 is hydraulically connected to a fuel outlet 40, runs through the fuel from the injector 1, so that no high fuel pressure builds up in the low-pressure chamber 36.
- a sealing seat 34 is formed on the control plate 24.
- a valve needle 8 is arranged, which is movable in the longitudinal direction of the injector 1 between a lower closure position and an upper, open position. In this case, the valve needle 8 rests on the valve plate 24 and closes the sealing seat 34 when it is in the lower closure position. When in an upper, open position, the valve needle 8 is lifted from the valve plate 24 and releases the sealing seat 34.
- valve needle 8 When the valve needle 8 is in an upper, open position and releases the sealing seat 34, the control chamber 18 is in hydraulic communication with the valve space 19 via the drainage bore 21 and the drainage throttle 22. When the valve needle 8 is in the lower closing position and the sealing seat 34 closes, the connection between the control chamber 18 and the valve chamber 19 is interrupted.
- the valve needle 6 extends through an opening formed in an upper, the valve plate 24 facing away from boundary 27 of the valve chamber 19 opening into the low pressure chamber 38 and has at its upper, remote from the valve plate 24 in the low pressure end 38 an anchor plate 25 which is perpendicular to Longitudinal direction of the injector 1 in the low-pressure space 38 extends.
- an armature spring 36 is arranged between the anchor plate 25 and the closure plate 41, which closes the injector 1 at its upper end.
- the armature spring 36 elastically supports the armature plate 25 on the closure plate 41 so that the valve needle 8 is pressed by the force of the armature spring 26 against the sealing seat 34 formed on the valve plate 24 in the lower closure position and the sealing seat 34 closes hydraulically tight.
- an electromagnet 10 which is designed such that the armature plate 25 by activating the electromagnet 10 against the force of the armature spring 26 upwards in the direction of the closure plate 24 in an upper opened position is moved while lifting the valve needle 8 from the sealing seat 34.
- the sealing seat 34 is opened by activating the electromagnet 10. Fuel flows from the control chamber 18 through the drain hole 21 and the outlet throttle 22 into the valve space 19 and out of the valve space 19 through the drain openings 36 further into the low-pressure space 38 and into the fuel outlet 40.
- the solenoid 10 is deactivated.
- the armature 2 is pressed by the armature spring 26 in the lower, closed position in which the valve needle 8 closes the sealing seat 34.
- the sealing seat 34 is closed, no fuel flowing through the inlet throttle 20 from the high-pressure chamber 32 into the control chamber 18 can drain from the control chamber 18 into the valve chamber 19 and the pressure in the control chamber 18 increases.
- the increased pressure in the control chamber 18 exerts a downward force on the nozzle needle 6, which presses the nozzle needle 6 together with the force of the nozzle needle spring 16 in the lower closure position.
- the lower end 6b of the nozzle needle 6 closes the injection openings 3 and no further fuel flows from the high-pressure chamber through the injection openings 3 into the combustion chamber.
- a central valve needle bore 23 is formed along the longitudinal axis of the injector 1.
- a pressure pin 9 is fitted in a high-pressure-tight manner, which is compressed along the longitudinal axis of the injector 1. Rallel to the direction of movement of the nozzle needle 6 and the valve needle 8 within the valve needle bore 23 is movable.
- the pressure pin 9 extends above the valve needle 8 centrally through a hole formed in the anchor plate 25, the armature spring 26 and the electromagnet 10 and is above the electromagnet 10 in operative connection with a arranged on the closure plate sensor 12 that one on the lower, the drain hole 32 in the valve plate 24 facing end face of the pressure pin 9 acting force is transmitted to the sensor 12.
- a compensation element 11 is provided between the upper, the sensor 12 facing the end face of the pressure pin 9 and the pressure pin 9 facing surface of the sensor 12.
- the compensating element 11 makes it possible to compensate for angular tolerances between the sensor 12 and the pressure pin 9 and to increase the accuracy of the measurements made by the sensor 12.
- valve needle 8 In the lower, closed position of the valve needle 8, d. h., When the valve needle 8 rests on the formed on the valve plate 24 sealing seat 34 and closes the connection between the control chamber 18 and the valve chamber 19 acts in the control chamber 18 prevailing high fuel pressure through the drain hole 21 to the drain hole 21 facing End of the pressure pin 9.
- the pressure pin 9 transmits a force that is proportional to the fuel pressure in the control chamber 18, the sensor 12th
- control chamber 18 via the inlet throttle 20 is in hydraulic communication with the high pressure chamber 32, the fuel pressure in the control chamber 18 in hydraulic equilibrium equal to the fuel pressure in the high pressure chamber 32.
- the force exerted by the pressure pin 9 on the sensor 12 force is therefore proportional to the fuel pressure in High-pressure chamber 32.
- the fuel pressure in the high pressure chamber 32 is easily determined from the value measured by the sensor 12.
- the sensor 12 is arranged in the low-pressure region of the injector 1, it is not necessary for the sensor 12 to be designed as a high-pressure-resistant sensor. Rather, it is possible to use a sensor 12 of simple construction and cost-effective to produce.
- the drain hole 21 is in hydraulic communication with the valve chamber 19 and the openings 36 Low pressure space 38. In this state, no high pressure is applied to the lower end face of the pressure pin 9, so that in this state, the high pressure of the fuel system can not be measured by the sensor 12.
- the time in which the sealing seat 34 is closed between the injection events, and the lower end face of the pressure pin 9 is exposed to the high fuel pressure of the system is sufficient to make a reliable pressure measurement.
- Figure 2 shows a fuel injection system with four fuel injectors 1, 1 a of a fuel pump 28 and a pressure control valve 42nd
- the output of the fuel pump 28 is connected via a fuel feed line 46 and an inlet throttle 47 to the inlet 30 of a first injector 1.
- the fuel outlet 40 of the first injector 1 is connected via a connecting line 44 to the inlet 30 of a second injector 1.
- the fuel flow of the second injector 1 a is connected via a further connecting line 44 with the fuel inlet of a third injector 1.
- the fuel outlet 40 of the third injector 1 is connected via a third connecting line 44 to the fuel inlet 30 of a fourth injector 1.
- the fuel outlet 40 of the fourth injector 1 is connected via a drain line 38 to a pressure regulating valve 42.
- the second fuel injector 1a is designed as a fuel injector according to the invention with a pressure sensor 12 integrated into the low-pressure region.
- the fuel injection system shown in Figure 2 has no central pressure accumulator. Nevertheless, the fuel pressure in the fuel injection system can be reliably measured, since at least one of the fuel injectors 1 is designed as an inventive fuel injector 1 a with an integrated pressure sensor 12. Depending on requirements, one or more of the fuel injectors 1 can be designed as a fuel injector 1 a according to the invention with a pressure sensor 12 or as conventional fuel injectors 1 without a pressure sensor 12. By the pressure control valve 42, the fuel pressure in the system can be adjusted. Because the fuel injectors 1, 1a are connected in series, a single pressure regulating valve 42 is sufficient. to regulate the fuel pressure in the injection system. Both a central pressure accumulator and additional connecting lines are saved. Such a fuel system is easy and inexpensive to implement.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009002895A DE102009002895A1 (en) | 2009-05-07 | 2009-05-07 | Fuel injector with pressure sensor |
PCT/EP2010/053081 WO2010127889A1 (en) | 2009-05-07 | 2010-03-11 | Fuel injector having pressure sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2427650A1 true EP2427650A1 (en) | 2012-03-14 |
EP2427650B1 EP2427650B1 (en) | 2017-05-31 |
Family
ID=42084635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10708198.6A Active EP2427650B1 (en) | 2009-05-07 | 2010-03-11 | Fuel injector with pressure sensor |
Country Status (7)
Country | Link |
---|---|
US (1) | US9157404B2 (en) |
EP (1) | EP2427650B1 (en) |
JP (1) | JP5491619B2 (en) |
CN (1) | CN102422012B (en) |
DE (1) | DE102009002895A1 (en) |
RU (1) | RU2573097C2 (en) |
WO (1) | WO2010127889A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2524132A1 (en) * | 2010-01-12 | 2012-11-21 | Robert Bosch GmbH | Fuel injector |
AT520481A1 (en) * | 2017-10-02 | 2019-04-15 | Avl List Gmbh | Injection system for a fuel cell system for injecting fuel into a combustion chamber |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009002895A1 (en) | 2009-05-07 | 2010-11-11 | Robert Bosch Gmbh | Fuel injector with pressure sensor |
DE102010044012A1 (en) * | 2010-11-16 | 2012-05-16 | Robert Bosch Gmbh | fuel injector |
DE102011078947A1 (en) * | 2011-04-07 | 2012-10-11 | Robert Bosch Gmbh | fuel injector |
EP2812559B1 (en) * | 2012-02-07 | 2016-05-04 | Ganser-Hydromag AG | Fuel injector and apparatus to inject fuel |
DE102012223244A1 (en) * | 2012-12-14 | 2014-06-18 | Robert Bosch Gmbh | Fuel injection valve for internal combustion engines |
DE102013211389A1 (en) | 2013-06-18 | 2014-12-18 | Robert Bosch Gmbh | sensor arrangement |
DE102013220032A1 (en) | 2013-10-02 | 2015-04-02 | Robert Bosch Gmbh | Fuel injector and method of manufacturing a fuel injector |
DE102014219973B4 (en) * | 2013-10-04 | 2021-04-29 | Vitesco Technologies GmbH | High pressure fuel assembly |
DE102014224257A1 (en) * | 2014-11-27 | 2016-06-02 | Robert Bosch Gmbh | linear actuator |
DE102015202978A1 (en) * | 2015-02-19 | 2016-08-25 | Robert Bosch Gmbh | Pressure control valve |
EP3076003A3 (en) | 2015-04-02 | 2017-03-01 | Robert Bosch GmbH | A fuel injector and a fuel injection system |
JP2017210891A (en) | 2016-05-24 | 2017-11-30 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Fuel injection valve electrification control method and common rail type fuel injection controller |
DE102017203001A1 (en) * | 2017-02-24 | 2018-08-30 | Robert Bosch Gmbh | Switch valve, sensor module or actuator module with protective circuit |
JP6781661B2 (en) * | 2017-04-20 | 2020-11-04 | ボッシュ株式会社 | Fuel injection device |
JP6866243B2 (en) * | 2017-06-22 | 2021-04-28 | ボッシュ株式会社 | Fuel injection device |
GB2563930B (en) | 2017-06-30 | 2020-02-19 | Delphi Tech Ip Ltd | Injector closed loop control |
RU2671313C1 (en) * | 2018-02-26 | 2018-10-30 | Олег Савельевич Кочетов | Nozzle with spraying disc |
JP2019173715A (en) * | 2018-03-29 | 2019-10-10 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh | Fuel injection device |
JP2019173712A (en) * | 2018-03-29 | 2019-10-10 | ロベルト・ボッシュ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツングRobert Bosch Gmbh | Fuel injection device |
CN112901391A (en) * | 2021-03-08 | 2021-06-04 | 上海钧风电控科技有限公司 | Valve rod assembly, high-pressure fuel injection valve and engine electronic control fuel injection system |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5191867A (en) * | 1991-10-11 | 1993-03-09 | Caterpillar Inc. | Hydraulically-actuated electronically-controlled unit injector fuel system having variable control of actuating fluid pressure |
WO1998035210A1 (en) * | 1997-02-06 | 1998-08-13 | Optrand, Inc. | Fuel injectors with integral fiber optic pressure sensors and associated compensation and status monitoring devices |
US5979803A (en) * | 1997-05-09 | 1999-11-09 | Cummins Engine Company | Fuel injector with pressure balanced needle valve |
RU2215178C2 (en) * | 2000-02-10 | 2003-10-27 | Открытое акционерное общество "Ярославский завод топливной аппаратуры" | Electromagnetic nozzle for internal combustion engine |
US6598591B2 (en) | 2001-12-18 | 2003-07-29 | Caterpillar Inc | Measuring check motion through pressure sensing |
DE102005054927A1 (en) | 2005-11-17 | 2007-05-31 | Siemens Ag | Fuel injector for common rail diesel injection for diesel engine, has nozzle needle which has steps in its shaft and damping chamber is formed in area of steps between shaft of nozzle needle and housing wall |
GB0609519D0 (en) | 2006-05-12 | 2006-06-21 | Delphi Tech Inc | Fuel injector |
DE102006055486A1 (en) * | 2006-11-24 | 2008-05-29 | Robert Bosch Gmbh | Fuel injection valve for internal-combustion engine, has control valve to control fuel pressure and transfer control valve-thrust force on piezoelement that works as force sensor and operating condition detection sensor |
JP4483908B2 (en) * | 2007-08-23 | 2010-06-16 | 株式会社デンソー | Fuel injection control device |
JP5064341B2 (en) * | 2007-11-02 | 2012-10-31 | 株式会社デンソー | Fuel injection valve and fuel injection device |
US8061329B2 (en) | 2007-11-02 | 2011-11-22 | Ford Global Technologies, Llc | Lift pump control for a two pump direct injection fuel system |
DE102007060396A1 (en) | 2007-12-03 | 2009-06-04 | Robert Bosch Gmbh | Mechanical extinguishing of closing bouncers in injection nozzles |
JP5195451B2 (en) * | 2008-04-15 | 2013-05-08 | 株式会社デンソー | FUEL INJECTION DEVICE AND PRESSURE ACCUMULATION FUEL INJECTION SYSTEM USED FOR THE SAME |
DE102009002895A1 (en) | 2009-05-07 | 2010-11-11 | Robert Bosch Gmbh | Fuel injector with pressure sensor |
DE102010000827A1 (en) | 2010-01-12 | 2011-07-14 | Robert Bosch GmbH, 70469 | fuel injector |
US8733324B2 (en) * | 2010-02-16 | 2014-05-27 | Cummins Intellectual Properties, Inc. | Fuel heating system and method |
-
2009
- 2009-05-07 DE DE102009002895A patent/DE102009002895A1/en not_active Withdrawn
-
2010
- 2010-03-11 CN CN201080020233.8A patent/CN102422012B/en active Active
- 2010-03-11 WO PCT/EP2010/053081 patent/WO2010127889A1/en active Application Filing
- 2010-03-11 RU RU2011149355/06A patent/RU2573097C2/en active
- 2010-03-11 US US13/263,957 patent/US9157404B2/en active Active
- 2010-03-11 EP EP10708198.6A patent/EP2427650B1/en active Active
- 2010-03-11 JP JP2012508960A patent/JP5491619B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2010127889A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2524132A1 (en) * | 2010-01-12 | 2012-11-21 | Robert Bosch GmbH | Fuel injector |
AT520481A1 (en) * | 2017-10-02 | 2019-04-15 | Avl List Gmbh | Injection system for a fuel cell system for injecting fuel into a combustion chamber |
AT520481B1 (en) * | 2017-10-02 | 2020-03-15 | Avl List Gmbh | Injection system for a fuel cell system for injecting fuel into a combustion chamber |
Also Published As
Publication number | Publication date |
---|---|
EP2427650B1 (en) | 2017-05-31 |
JP2012526227A (en) | 2012-10-25 |
DE102009002895A1 (en) | 2010-11-11 |
US9157404B2 (en) | 2015-10-13 |
JP5491619B2 (en) | 2014-05-14 |
CN102422012B (en) | 2014-04-16 |
RU2573097C2 (en) | 2016-01-20 |
CN102422012A (en) | 2012-04-18 |
US20120031376A1 (en) | 2012-02-09 |
RU2011149355A (en) | 2014-06-10 |
WO2010127889A1 (en) | 2010-11-11 |
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