EP0778922A1 - Einrichtung zur erkennung eines lecks in einem kraftstoffversorgungssystem - Google Patents
Einrichtung zur erkennung eines lecks in einem kraftstoffversorgungssystemInfo
- Publication number
- EP0778922A1 EP0778922A1 EP96902877A EP96902877A EP0778922A1 EP 0778922 A1 EP0778922 A1 EP 0778922A1 EP 96902877 A EP96902877 A EP 96902877A EP 96902877 A EP96902877 A EP 96902877A EP 0778922 A1 EP0778922 A1 EP 0778922A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- fuel
- leak
- internal combustion
- combustion engine
- 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 46
- 238000002485 combustion reaction Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 19
- 238000002347 injection Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 17
- 239000002828 fuel tank Substances 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 4
- 230000001419 dependent effect Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
-
- 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
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/088—Safety, indicating, or supervising devices relating to tightness
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3827—Common rail control systems for diesel engines
-
- 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
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common 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
- 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
- F02M63/0205—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 for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
-
- 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
-
- 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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
- F02D2041/225—Leakage detection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0602—Fuel pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
- F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2231/00—Fail safe
- F23N2231/18—Detecting fluid leaks
Definitions
- the invention relates to a device for detecting a leak in a fuel supply system in an internal combustion engine according to the preamble of the main claim.
- the fuel In motor vehicles with an internal combustion engine, the fuel is conveyed out of the fuel tank with the aid of an electric fuel pump and supplied to the injection valves via fuel lines. Excess fuel usually gets back into the fuel tank via a return line.
- the electric fuel pump In internal combustion engines with auto-ignition, the electric fuel pump is followed by a further pump which generates a very high pressure in the area of the fuel supply, which is connected to the injection valves.
- Memory below a predetermined value leads to error detection. Since fuel would be continuously injected into the engine in such a case, the engine is switched off or the fuel delivery is stopped in the known device after detection of a fault.
- the device according to the invention with the features of the main claim has the advantage over the known that the entire high-pressure fuel supply system can be monitored for leaks and not only is it recognized whether an injection valve is constantly open, but also a leak to the outside is recognizable.
- the simplicity of the device according to the invention is particularly advantageous.
- This advantage is achieved in that the fuel pressure is continuously measured with the help of an already existing pressure sensor in the high-pressure part of the fuel supply system, the error detection being carried out only when the control unit of the internal combustion engine detects a predeterminable operating state, for example overrun operation.
- the pressure relief valve arranged in the return of the fuel supply system with the aid of which the fuel pressure is usually regulated, is then closed and the pressure which then arises, in particular the pressure change which arises, is compared with predeterminable values, with an error detection is triggered if the measured pressure or the measured pressure curve does not behave as expected with the return valve closed.
- the engine is advantageously switched off or the fuel supply is interrupted by switching off the high-pressure pump.
- FIG. 1 An embodiment of the invention is shown in the drawing and is explained in more detail in the following description.
- the single figure shows schematically the essential components of a fuel supply system for internal combustion engines with auto-ignition, for example diesel internal combustion engines, in which the leak detection according to the invention can take place.
- the figure shows the components of a fuel supply system of an internal combustion engine with auto-ignition that are necessary for understanding the invention.
- the fuel tank is designated 10, the fuel tank is assigned the fuel pump 11, usually an electric fuel pump and a return Impact valve 12, which is integrated in the fuel pump 11, for example.
- the fuel pump 11 supplies the fuel to a high-pressure pump 13, to which a high-pressure accumulator 14 connects. From the high-pressure accumulator 14, the fuel reaches the injection nozzles 15, 16, 17, 18, which are arranged in a so-called common rail system 14a.
- the injection valves 15, 16, 17, 18 are actuated by means of an electronic control unit 19 and corresponding connections 26.
- the electronic control unit is supplied with further signals which indicate the operating conditions of the internal combustion engine. They are supplied by corresponding sensors 20, 21, 22 delivered.
- a return 23 leads from the common rail 14a back to the fuel tank 10 via a solenoid valve 24.
- This solenoid valve 24 can be controlled by the control unit 19 via the connection 27.
- the injection pressure in the common rail 14a is regulated via the solenoid valve 24.
- the solenoid valve 24 can be closed by the control device 19 for leak detection.
- a pressure sensor 25 Associated with the common rail 14a is a pressure sensor 25, which measures the fuel pressure in the common rail and passes corresponding signals to the control unit 19 via the connecting line 28.
- the leak detection according to the invention takes place.
- the necessary calculations are carried out by the control unit 19, which also takes over the control or regulation of the internal combustion engine in a known manner. If the electronic control device 19 is an additional control device, an information exchange with the Control unit of the internal combustion engine required. In which of the control devices which evaluations or calculations then run can be suitably selected.
- the pressure in the high pressure range can also be regulated with the aid of a dedicated pressure regulator or electronics, which takes the place of the electronic control unit 19 and controls the solenoid valve 14 as a function of the injection pressure pE supplied by the pressure sensor 25.
- the pump 13 supplying the high pressure constantly runs at a speed which corresponds to approximately half the engine speed.
- fuel is continuously pumped, the fuel or injection pressure which is established as already mentioned by
- Control of the solenoid valve 24 is regulated.
- the pressure drops briefly because a certain amount of fuel is emitted from the common rail. So that such a pressure fluctuation does not have a disruptive effect on the leak detection, the leak detection is preferably carried out when no fuel is injected.
- Comparisons therefore run in the electronic control unit in which the pressure curve pE (t) measured by the pressure sensor 25 in overrun mode is evaluated or compared with predeterminable values. If it is recognized by the electronic control unit that the pressure changes or the pressure increase does not occur in the expected manner, the control unit 19 activates appropriate controls, e.g. B. triggered via the connection 29, which cause the internal combustion engine to be switched off or at least stop the fuel delivery via the high-pressure pump 13.
- appropriate controls e.g. B. triggered via the connection 29, which cause the internal combustion engine to be switched off or at least stop the fuel delivery via the high-pressure pump 13.
- the detection according to the invention of a leak in the high-pressure part of the common rail system or of an open injection valve therefore assumes that a pressure drop in the common rail or an implausibility between the working point of the internal combustion engine, for example the relationship between the speed and the injection quantity and activation the pressure control unit indicates an error and requires corresponding counter-reactions.
- the response of the pressure control circuit to setpoint changes can be checked in certain operating conditions, advantageously in overrun. Plausibility is only present if the pressure reaches the adjustable setpoint within a time window. If a specific change in the control of the pressure control circuit is carried out, the system response can be evaluated and, on the basis of this system response, it can be assessed whether there is a leak.
- This system can thus be used to check and assess the dynamic system behavior leads to considerably reliable results compared to a static analysis.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Fuel-Injection Apparatus (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19520300A DE19520300A1 (de) | 1995-06-02 | 1995-06-02 | Einrichtung zur Erkennung eines Lecks in einem Kraftstoffversorgungssystem |
DE19520300 | 1995-06-02 | ||
PCT/DE1996/000271 WO1996038664A1 (de) | 1995-06-02 | 1996-02-22 | Einrichtung zur erkennung eines lecks in einem kraftstoffversorgungssystem |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0778922A1 true EP0778922A1 (de) | 1997-06-18 |
EP0778922B1 EP0778922B1 (de) | 2000-09-20 |
Family
ID=7763537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96902877A Expired - Lifetime EP0778922B1 (de) | 1995-06-02 | 1996-02-22 | Einrichtung zur erkennung eines lecks in einem kraftstoffversorgungssystem |
Country Status (5)
Country | Link |
---|---|
US (1) | US5715786A (de) |
EP (1) | EP0778922B1 (de) |
JP (1) | JPH10503571A (de) |
DE (2) | DE19520300A1 (de) |
WO (1) | WO1996038664A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015215473B4 (de) * | 2014-08-22 | 2019-11-14 | Ford Global Technologies, Llc | Detektion offenstehender Injektoren |
Families Citing this family (78)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19513158A1 (de) * | 1995-04-07 | 1996-10-10 | Bosch Gmbh Robert | Einrichtung zur Erkennung eines Lecks in einem Kraftstoffversorgungssystem |
EP0785358B1 (de) * | 1996-01-19 | 2002-03-27 | C.R.F. Società Consortile per Azioni | Verfahren und Einheit zur Dichtigkeitsdiagnose eines Hochdruckeinspritzsystems einer Brennstoffmaschine |
DE19780251C2 (de) * | 1996-02-29 | 2001-02-22 | Mitsubishi Motors Corp | Kraftstoffzufuhrsystem für einen Verbrennungsmotor |
DE19653055C1 (de) * | 1996-12-19 | 1998-05-07 | Bosch Gmbh Robert | Verfahren zur Dichtheitsprüfung bei einer Kraftstoffeinspritzpumpe und Kraftstoffeinspritzpumpe zur Durchführung des Verfahrens |
DE19708045C2 (de) * | 1997-02-28 | 2002-12-19 | Audi Ag | Verfahren zur Bewertung von Zündaussetzern |
GB2325525B (en) * | 1997-03-20 | 2001-08-22 | Carl Denby | Testing storage tanks |
DE19726183A1 (de) * | 1997-06-20 | 1998-12-24 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems |
DE19748420A1 (de) * | 1997-11-03 | 1999-05-06 | Bosch Gmbh Robert | Verfahren zum Betrieb einer selbstzündenden, luftverdichtenden Brennkraftmaschine |
JP3709065B2 (ja) * | 1997-12-25 | 2005-10-19 | 株式会社日立製作所 | エンジン燃料供給装置 |
US6076504A (en) * | 1998-03-02 | 2000-06-20 | Cummins Engine Company, Inc. | Apparatus for diagnosing failures and fault conditions in a fuel system of an internal combustion engine |
US6053147A (en) * | 1998-03-02 | 2000-04-25 | Cummins Engine Company, Inc. | Apparatus and method for diagnosing erratic pressure sensor operation in a fuel system of an internal combustion engine |
EP0961021B1 (de) * | 1998-05-29 | 2004-04-14 | Toyota Jidosha Kabushiki Kaisha | Kraftstoffversorgung für Verbrennungsmotor |
DE19833086B4 (de) | 1998-07-23 | 2013-08-01 | Robert Bosch Gmbh | MaximalwertVerfahren und Vorrichtung zur Erkennung einer Leckage in einem Kraftstoffversorgungssystem einer Brennkraftmaschine |
DE19928548A1 (de) * | 1999-06-22 | 2001-01-04 | Hydraulik Ring Gmbh | Verfahren zur Erfassung einer Leckage |
US6293251B1 (en) | 1999-07-20 | 2001-09-25 | Cummins Engine, Inc. | Apparatus and method for diagnosing erratic pressure sensor operation in a fuel system of an internal combustion engine |
DE19942846C1 (de) * | 1999-09-08 | 2000-11-16 | Bosch Gmbh Robert | Vorrichtung und Verfahren zur druckgesteuerten Einspritzung eines Fluids |
DE19946506C1 (de) * | 1999-09-28 | 2001-07-19 | Siemens Ag | Verfahren zum Erkennen von Fehlfunktionen im Drucksystem einer an einem Verbrennungsmotor zu verwendenden Kraftstoff-Einspritzanlage |
DE19950222A1 (de) * | 1999-10-19 | 2001-04-26 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Diagnose eines Kraftstoffversorgungssystems |
CA2658772C (en) | 2000-02-29 | 2013-07-30 | Gen-Probe Incorporated | Fluid dispense and liquid surface verification system and method |
FI108070B (fi) * | 2000-04-27 | 2001-11-15 | Waertsilae Tech Oy Ab | Laitteisto polttoainevuodon paikallistamiseksi polttomoottorin yhteydessä |
WO2001083971A1 (de) | 2000-05-03 | 2001-11-08 | Robert Bosch Gmbh | Verfahren und vorrichtung zur überwachung eines kraftstoffzumess-systems einer brennkraftmaschine |
GB2366598A (en) * | 2000-09-07 | 2002-03-13 | Cummins Engine Co Ltd | Detecting leakage in the fuel rail of an i.c. engine |
DE10303443B3 (de) * | 2003-01-29 | 2004-10-21 | Siemens Ag | Verfahren zur Prüfung eines Kraftstoffhochdrucksystems |
US7107820B2 (en) * | 2003-05-02 | 2006-09-19 | Praxair S.T. Technology, Inc. | Integrated gas supply and leak detection system |
DE10329331B3 (de) | 2003-06-30 | 2005-05-25 | Siemens Ag | Verfahren zur Diagnose eines Volumenstromregelventils bei einer Brennkraftmaschine mit Hochdruck-Speichereinspritzsystem |
US7111605B2 (en) * | 2003-07-11 | 2006-09-26 | Cummins, Inc. | System for modifying fuel pressure in a high-pressure fuel injection system for fuel system leakage testing |
FI119702B (fi) * | 2003-10-17 | 2009-02-13 | Waertsilae Finland Oy | Polttomoottorin laitteisto korkeapaineputken vuotoja varten |
US7337652B2 (en) * | 2003-10-22 | 2008-03-04 | Caterpillar Inc. | Fuel system with leak location diagnostic features and component for same |
US7168297B2 (en) * | 2003-10-28 | 2007-01-30 | Environmental Systems Products Holdings Inc. | System and method for testing fuel tank integrity |
JP4400312B2 (ja) * | 2004-06-01 | 2010-01-20 | 日産自動車株式会社 | 蒸発燃料処理装置の故障検出装置 |
US7775966B2 (en) | 2005-02-24 | 2010-08-17 | Ethicon Endo-Surgery, Inc. | Non-invasive pressure measurement in a fluid adjustable restrictive device |
US8016744B2 (en) | 2005-02-24 | 2011-09-13 | Ethicon Endo-Surgery, Inc. | External pressure-based gastric band adjustment system and method |
US7699770B2 (en) | 2005-02-24 | 2010-04-20 | Ethicon Endo-Surgery, Inc. | Device for non-invasive measurement of fluid pressure in an adjustable restriction device |
US7658196B2 (en) | 2005-02-24 | 2010-02-09 | Ethicon Endo-Surgery, Inc. | System and method for determining implanted device orientation |
US8066629B2 (en) | 2005-02-24 | 2011-11-29 | Ethicon Endo-Surgery, Inc. | Apparatus for adjustment and sensing of gastric band pressure |
US7927270B2 (en) | 2005-02-24 | 2011-04-19 | Ethicon Endo-Surgery, Inc. | External mechanical pressure sensor for gastric band pressure measurements |
US7775215B2 (en) | 2005-02-24 | 2010-08-17 | Ethicon Endo-Surgery, Inc. | System and method for determining implanted device positioning and obtaining pressure data |
DE102005043971A1 (de) | 2005-09-15 | 2007-03-22 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumesssystems |
JP4407611B2 (ja) * | 2005-10-06 | 2010-02-03 | 株式会社デンソー | 燃料噴射制御装置 |
US8870742B2 (en) | 2006-04-06 | 2014-10-28 | Ethicon Endo-Surgery, Inc. | GUI for an implantable restriction device and a data logger |
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DE102006046840A1 (de) | 2006-10-02 | 2008-04-03 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Überwachung eines Kraftstoffeinspritzsystems |
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US8187163B2 (en) | 2007-12-10 | 2012-05-29 | Ethicon Endo-Surgery, Inc. | Methods for implanting a gastric restriction device |
US8100870B2 (en) | 2007-12-14 | 2012-01-24 | Ethicon Endo-Surgery, Inc. | Adjustable height gastric restriction devices and methods |
US8142452B2 (en) | 2007-12-27 | 2012-03-27 | Ethicon Endo-Surgery, Inc. | Controlling pressure in adjustable restriction devices |
US8377079B2 (en) | 2007-12-27 | 2013-02-19 | Ethicon Endo-Surgery, Inc. | Constant force mechanisms for regulating restriction devices |
US8337389B2 (en) | 2008-01-28 | 2012-12-25 | Ethicon Endo-Surgery, Inc. | Methods and devices for diagnosing performance of a gastric restriction system |
US8192350B2 (en) | 2008-01-28 | 2012-06-05 | Ethicon Endo-Surgery, Inc. | Methods and devices for measuring impedance in a gastric restriction system |
US8591395B2 (en) | 2008-01-28 | 2013-11-26 | Ethicon Endo-Surgery, Inc. | Gastric restriction device data handling devices and methods |
US7844342B2 (en) | 2008-02-07 | 2010-11-30 | Ethicon Endo-Surgery, Inc. | Powering implantable restriction systems using light |
US8221439B2 (en) | 2008-02-07 | 2012-07-17 | Ethicon Endo-Surgery, Inc. | Powering implantable restriction systems using kinetic motion |
US8114345B2 (en) | 2008-02-08 | 2012-02-14 | Ethicon Endo-Surgery, Inc. | System and method of sterilizing an implantable medical device |
US8057492B2 (en) | 2008-02-12 | 2011-11-15 | Ethicon Endo-Surgery, Inc. | Automatically adjusting band system with MEMS pump |
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1995
- 1995-06-02 DE DE19520300A patent/DE19520300A1/de not_active Withdrawn
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1996
- 1996-02-22 WO PCT/DE1996/000271 patent/WO1996038664A1/de active IP Right Grant
- 1996-02-22 JP JP8536078A patent/JPH10503571A/ja not_active Abandoned
- 1996-02-22 EP EP96902877A patent/EP0778922B1/de not_active Expired - Lifetime
- 1996-02-22 DE DE59605914T patent/DE59605914D1/de not_active Expired - Lifetime
-
1997
- 1997-01-28 US US08/789,922 patent/US5715786A/en not_active Expired - Lifetime
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DE102015215473B4 (de) * | 2014-08-22 | 2019-11-14 | Ford Global Technologies, Llc | Detektion offenstehender Injektoren |
Also Published As
Publication number | Publication date |
---|---|
EP0778922B1 (de) | 2000-09-20 |
US5715786A (en) | 1998-02-10 |
DE59605914D1 (de) | 2000-10-26 |
WO1996038664A1 (de) | 1996-12-05 |
DE19520300A1 (de) | 1996-12-05 |
JPH10503571A (ja) | 1998-03-31 |
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