EP1936180A3 - Fuel injector valve - Google Patents

Fuel injector valve Download PDF

Info

Publication number
EP1936180A3
EP1936180A3 EP07119028A EP07119028A EP1936180A3 EP 1936180 A3 EP1936180 A3 EP 1936180A3 EP 07119028 A EP07119028 A EP 07119028A EP 07119028 A EP07119028 A EP 07119028A EP 1936180 A3 EP1936180 A3 EP 1936180A3
Authority
EP
European Patent Office
Prior art keywords
volume
valve
fuel
fuel injector
storage
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
EP07119028A
Other languages
German (de)
French (fr)
Other versions
EP1936180B1 (en
EP1936180A2 (en
Inventor
Matthias Burger
Hans-Christoph Magel
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 EP1936180A2 publication Critical patent/EP1936180A2/en
Publication of EP1936180A3 publication Critical patent/EP1936180A3/en
Application granted granted Critical
Publication of EP1936180B1 publication Critical patent/EP1936180B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • 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
    • F02M2200/28—Details of throttles in fuel-injection apparatus
    • 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
    • F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
    • 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
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic

Landscapes

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

Abstract

Ein Brennstoffeinspritzventil (1), das als Injektor für Brennstoffeinspritzanlagen von luftverdichtenden, selbstzündenden Brennkraftmaschinen dient, weist eine in einem Ventilgehäuse (3) angeordnete Betätigungseinrichtung (33) und einen von der Betätigungseinrichtung (33) betätigbaren Ventilschließkörper (6) auf, der mit einer Ventilschließfläche (15) zu einem Dichtsitz zusammenwirkt. Dabei ist zur Dämpfung von Druckschwingungen zwischen einer Hochdruckpumpe (11) und dem Brennstoffeinspritzventil (1) ein Speichervolumen (15) vorgesehen, das eine gewisse Brennstoffmenge aufnimmt. Ferner ist das Speichervolumen (15) in ein erstes Speicherteilvolumen und ein zweites Speicherteilvolumen aufgeteilt, die mittels einer Drossel (16) verbunden sind, so dass hochfrequente Druckschwingungen, die innerhalb des Ventilgehäuses (3) auftreten können, gedämpft sind.

Figure imgaf001
A fuel injector (1), which serves as an injector for fuel injection systems of air-compressing, self-igniting internal combustion engines, has an actuating device (33) arranged in a valve housing (3) and a valve closing body (6) which can be actuated by the actuating device (33) and which has a valve closing surface (15) cooperates to a sealing seat. In this case, a storage volume (15) is provided for damping pressure oscillations between a high-pressure pump (11) and the fuel injection valve (1), which receives a certain amount of fuel. Further, the storage volume (15) is divided into a first storage sub-volume and a second storage sub-volume, which are connected by means of a throttle (16), so that high-frequency pressure oscillations which can occur within the valve housing (3) are damped.
Figure imgaf001
EP20070119028 2006-12-21 2007-10-23 Fuel injector valve Active EP1936180B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610060657 DE102006060657A1 (en) 2006-12-21 2006-12-21 Fuel injector

Publications (3)

Publication Number Publication Date
EP1936180A2 EP1936180A2 (en) 2008-06-25
EP1936180A3 true EP1936180A3 (en) 2009-09-16
EP1936180B1 EP1936180B1 (en) 2013-09-11

Family

ID=39166409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070119028 Active EP1936180B1 (en) 2006-12-21 2007-10-23 Fuel injector valve

Country Status (2)

Country Link
EP (1) EP1936180B1 (en)
DE (1) DE102006060657A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2187034B1 (en) * 2008-11-14 2013-06-19 Robert Bosch Gmbh A fuel injector with axial sealing element
DE102010030383A1 (en) * 2010-06-23 2011-12-29 Robert Bosch Gmbh Fuel injection device with hydraulic coupler
DE102010064057A1 (en) * 2010-12-23 2012-06-28 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
CN114135430B (en) * 2021-12-08 2023-01-06 一汽解放汽车有限公司 Fuel injection valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002046601A1 (en) * 2000-12-07 2002-06-13 Robert Bosch Gmbh Fuel injection system for internal combustion engines
WO2002090755A1 (en) * 2001-05-05 2002-11-14 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
DE10348929A1 (en) * 2003-10-18 2005-05-12 Bosch Gmbh Robert Fuel injection valve for automobile internal combustion engine has jet control space between valve control piston and jet needle coupled via flow channel to valve space for regulation of fuel pressure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10155413A1 (en) 2001-11-10 2003-05-22 Bosch Gmbh Robert Valve for controlling liquids

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002046601A1 (en) * 2000-12-07 2002-06-13 Robert Bosch Gmbh Fuel injection system for internal combustion engines
WO2002090755A1 (en) * 2001-05-05 2002-11-14 Robert Bosch Gmbh Fuel injection valve for internal combustion engines
DE10348929A1 (en) * 2003-10-18 2005-05-12 Bosch Gmbh Robert Fuel injection valve for automobile internal combustion engine has jet control space between valve control piston and jet needle coupled via flow channel to valve space for regulation of fuel pressure

Also Published As

Publication number Publication date
EP1936180B1 (en) 2013-09-11
EP1936180A2 (en) 2008-06-25
DE102006060657A1 (en) 2008-07-03

Similar Documents

Publication Publication Date Title
ATE381669T1 (en) FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
KR101911502B1 (en) High Pressure Pump for Complex Injection Engine
Shatrov et al. Influence of high injection pressure on fuel injection perfomances and diesel engine worcking process
WO2006004026A3 (en) Fuel supply system for internal combustion engine
EP1892403A3 (en) Control apparatus for direct injection type internal combustion engine
ATE488690T1 (en) STORAGE INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE
EP2503132A3 (en) Method and apparatus to reduce engine noise in a direct injection engine
EP1939440A3 (en) Fuel injector valve
EP1936180A3 (en) Fuel injector valve
EP1359306A3 (en) Fuel injection system for an internal combustion engine
US20140338639A1 (en) Method of controlling injection rate shape of gaseous fuel in dual fuel injector
EP1918570A3 (en) Fuel injector with accumulator volume segment
EP2166218A3 (en) Fuel injector valve
EP2541037A3 (en) A fuel valve for large turbocharged two stroke diesel engines
EP1983186A2 (en) Pressure-stabilised actuator
ATE522717T1 (en) HIGH PRESSURE INJECTION INJECTOR FOR INTERNAL INTERNAL ENGINES WITH A BUCKET LOAD-INCREASE CONTROL ROD SUPPORT OVER HIGH PRESSURE FUEL
EP1939442A3 (en) Fuel injector valve
Zhu et al. HEUI injector modeling and ROI experiments for high injection pressure of diesel and dimethyl ether (DME)
EP2511514A3 (en) Fuel injector valve
EP1637730A3 (en) Fuel injection nozzle and method of manufacture
DE102010002637A1 (en) Injector i.e. fuel injector, for heat engine i.e. internal combustion engine, has valve connected to control chamber by output channel integrating throttling element to control piston, and valve seat arranged to minimize slipping of parts
DE502005007511D1 (en) FUEL INJECTION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
EP1798409A3 (en) Fuel injection system for a combustion engine
EP2412965A3 (en) Fuel injector valve
CN210106050U (en) Diesel engine fuel injector testing device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17P Request for examination filed

Effective date: 20100316

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20110401

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20130607

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 631779

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130915

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007012265

Country of ref document: DE

Effective date: 20131107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130724

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130911

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131212

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

BERE Be: lapsed

Owner name: ROBERT BOSCH G.M.B.H.

Effective date: 20131031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140111

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007012265

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140113

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131031

26N No opposition filed

Effective date: 20140612

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20131211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007012265

Country of ref document: DE

Effective date: 20140612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131031

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131023

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131211

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 631779

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131023

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131023

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20071023

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131023

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130911

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231023

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231218

Year of fee payment: 17