EP2177748A3 - Injection device - Google Patents

Injection device Download PDF

Info

Publication number
EP2177748A3
EP2177748A3 EP09172734A EP09172734A EP2177748A3 EP 2177748 A3 EP2177748 A3 EP 2177748A3 EP 09172734 A EP09172734 A EP 09172734A EP 09172734 A EP09172734 A EP 09172734A EP 2177748 A3 EP2177748 A3 EP 2177748A3
Authority
EP
European Patent Office
Prior art keywords
medium
valve
actuator device
actuator
valve assembly
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
EP09172734A
Other languages
German (de)
French (fr)
Other versions
EP2177748B1 (en
EP2177748A2 (en
Inventor
Olaf Ohlhafer
Robert Giezendanner-Thoben
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 EP2177748A2 publication Critical patent/EP2177748A2/en
Publication of EP2177748A3 publication Critical patent/EP2177748A3/en
Application granted granted Critical
Publication of EP2177748B1 publication Critical patent/EP2177748B1/en
Not-in-force 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
    • F02M69/04—Injectors peculiar thereto
    • F02M69/041—Injectors peculiar thereto having vibrating means for atomizing the fuel, e.g. with sonic or ultrasonic vibrations
    • 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
    • F02M63/06—Use of pressure wave generated by fuel inertia to open injection valves

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

Die Erfindung betrifft eine Einspritzvorrichtung zur Einspritzung eines Mediums, umfassend eine Ventilanordnung (10 ) mit einem an einem Ventilsitz (13) abdichtendenVentilglied (11), wobei die Ventilanordnung (10) im einzuspritzenden Medium (M) angeordnet ist, eine Aktuatorvorrichtung (20) mit einem Aktor (21), einem Kolben (22) und einem Rückstellelement (23) und eine Impulsübertragungsvorrichtung (24), welche zwischen der Ventilanordnung (10) und der Aktuatorvorrichtung (20) angeordnet ist, welche die Ventilanordnung (10) von der Aktuatorvorrichtung (20) fluiddicht trennt, und welche einen von der Aktuatorvorrichtung (20) erzeugten Impuls auf das einzuspritzende Medium (M) überträgt, um dadurch die Ventilanordnung (10) zu öffnen und Medium (M) einzuspritzen.

Figure imgaf001
The invention relates to an injection device for injecting a medium, comprising a valve arrangement (10) with a valve member (11) sealing against a valve seat (13), the valve arrangement (10) being arranged in the medium (M) to be injected, an actuator device (20) having an actuator (21), a piston (22) and a return element (23) and a momentum transfer device (24), which is arranged between the valve assembly (10) and the actuator device (20), which the valve assembly (10) of the actuator device (20) 20) fluid-tightly, and which transmits a pulse generated by the actuator device (20) to the medium (M) to be injected, thereby opening the valve assembly (10) and injecting medium (M).
Figure imgaf001
EP09172734.7A 2008-10-15 2009-10-12 Injection device Not-in-force EP2177748B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008042850A DE102008042850A1 (en) 2008-10-15 2008-10-15 Injector

Publications (3)

Publication Number Publication Date
EP2177748A2 EP2177748A2 (en) 2010-04-21
EP2177748A3 true EP2177748A3 (en) 2010-12-15
EP2177748B1 EP2177748B1 (en) 2018-07-11

Family

ID=41478731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09172734.7A Not-in-force EP2177748B1 (en) 2008-10-15 2009-10-12 Injection device

Country Status (4)

Country Link
US (1) US8678302B2 (en)
EP (1) EP2177748B1 (en)
JP (1) JP5656385B2 (en)
DE (1) DE102008042850A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010039046A1 (en) * 2010-08-09 2012-02-09 Robert Bosch Gmbh Injector
DE102010040385A1 (en) 2010-09-08 2012-03-08 Robert Bosch Gmbh Apparatus for injecting injection medium e.g. fuel into combustion engine, has closure element that is movably mounted with housing to open injection port if housing is elastically deformed by propagation of shock wave in injection medium
DE102010040387A1 (en) 2010-09-08 2012-03-08 Robert Bosch Gmbh Injection valve for injecting fuel into combustion chamber of e.g. diesel engine of motor vehicle, has eddy current actuator cooperating with disc-shaped piston for generating shock/pressure wave toward valve seat
DE102010040390A1 (en) 2010-09-08 2012-03-08 Robert Bosch Gmbh Injection valve for injecting fuel into combustion chamber of internal combustion engine, has valve housing with chamber for supporting valve closing element in which injecting medium flows
DE102010040378A1 (en) 2010-09-08 2012-03-08 Robert Bosch Gmbh Injection valve for injecting fuel into combustion chamber of internal combustion engine, has valve housing, which has chamber for partially receiving valve closing element and another chamber for receiving actuator
DE102010062388A1 (en) * 2010-12-03 2012-06-06 Robert Bosch Gmbh Electromagnetic actuator module and injector
WO2013050078A1 (en) 2011-10-06 2013-04-11 Robert Bosch Gmbh Injection valve
DE102013211160A1 (en) 2013-06-14 2014-12-18 Robert Bosch Gmbh Dosing valve device, exhaust aftertreatment system
US10079541B1 (en) * 2017-05-23 2018-09-18 Murata Manufacturing Co., Ltd. Wide input, wide output, high efficiency, isolated DC-DC converter-battery charger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155232A (en) * 1982-03-10 1983-09-14 Mitsubishi Electric Corp Fuel supply device
JPS6060254A (en) * 1983-09-09 1985-04-06 Hitachi Ltd Fuel injection valve and control device therefor
US5169067A (en) * 1990-07-30 1992-12-08 Aisin Seiki Kabushiki Kaisha Electromagnetically operated ultrasonic fuel injection device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2419425A1 (en) * 1974-04-23 1975-11-06 Daimler Benz Ag Compression ignition engine combined fuel pump-injector - has electromagnetically operated piston in pump cylinder with injector valve opening in flow direction
JPS5896164A (en) 1981-12-02 1983-06-08 Nissan Motor Co Ltd Fuel injection nozzle
JPH0416628A (en) 1990-05-09 1992-01-21 Kaoru Taneichi Base construction method and building construction method and base and anchor bolts for base
JPH10184498A (en) 1996-12-27 1998-07-14 Yamaha Motor Co Ltd Fuel injection device
US5875764A (en) * 1998-05-13 1999-03-02 Siemens Aktiengesellschaft Apparatus and method for valve control
DE19963568A1 (en) * 1999-12-29 2001-07-05 Bosch Gmbh Robert Fuel injector
US6570474B2 (en) * 2000-02-22 2003-05-27 Siemens Automotive Corporation Magnetostrictive electronic valve timing actuator
DE10133265A1 (en) * 2001-07-09 2003-01-23 Bosch Gmbh Robert Fuel injection valve with piezoelectric or magnetostrictive actuator, has hydraulic coupling valve closure body and seat surface urged pressed together by spring
DE102006026153A1 (en) 2006-06-06 2007-12-13 Robert Bosch Gmbh Spraying device for fluids

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155232A (en) * 1982-03-10 1983-09-14 Mitsubishi Electric Corp Fuel supply device
JPS6060254A (en) * 1983-09-09 1985-04-06 Hitachi Ltd Fuel injection valve and control device therefor
US5169067A (en) * 1990-07-30 1992-12-08 Aisin Seiki Kabushiki Kaisha Electromagnetically operated ultrasonic fuel injection device

Also Published As

Publication number Publication date
EP2177748B1 (en) 2018-07-11
US8678302B2 (en) 2014-03-25
JP2010096182A (en) 2010-04-30
JP5656385B2 (en) 2015-01-21
EP2177748A2 (en) 2010-04-21
US20100187336A1 (en) 2010-07-29
DE102008042850A1 (en) 2010-04-22

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