EP2466112A3 - Pulsation dampener - Google Patents

Pulsation dampener Download PDF

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Publication number
EP2466112A3
EP2466112A3 EP11009811.8A EP11009811A EP2466112A3 EP 2466112 A3 EP2466112 A3 EP 2466112A3 EP 11009811 A EP11009811 A EP 11009811A EP 2466112 A3 EP2466112 A3 EP 2466112A3
Authority
EP
European Patent Office
Prior art keywords
cross
injector
damping element
pressure generator
pores
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
EP11009811.8A
Other languages
German (de)
French (fr)
Other versions
EP2466112A2 (en
EP2466112B1 (en
Inventor
Stephan Wanner
Arthur Handtmann
Sebastian Franz
Stefan Schneider
Franz Prof. Dr. Dr. h.c. Durst
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.)
KW Technologie GmbH and Co KG
Original Assignee
KW Technologie GmbH and Co KG
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 KW Technologie GmbH and Co KG filed Critical KW Technologie GmbH and Co KG
Publication of EP2466112A2 publication Critical patent/EP2466112A2/en
Publication of EP2466112A3 publication Critical patent/EP2466112A3/en
Application granted granted Critical
Publication of EP2466112B1 publication Critical patent/EP2466112B1/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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/165—Filtering elements specially adapted in fuel inlets to injector
    • 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
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
    • 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
    • F02M2200/27—Fuel-injection apparatus with filters
    • 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
    • F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
    • F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations

Landscapes

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

Abstract

Es wird eine Vorrichtung zum Einspritzen eines unter Druck stehenden Brennstofffluids in einen Brennraum mit einem Druckerzeuger, wenigstens einem Injektor mit Einspritzöffnung und einer Brennstoffleitung zwischen dem Druckerzeuger und dem Injektor, wobei wenigstens ein Dämpfungselement zwischen dem Druckerzeuger und der Einspritzöffnung des Injektors vorgesehen ist, wobei das Dämpfungselement wenigstens einen Strömungsweg mit frei durchströmbarer, einen Querschnittsdurchmesser aufweisende Querschnittsfläche und/oder mit frei durchströmbaren, einen Porendurchmesser aufweisende Poren umfasst, vorgeschlagen. Diese zeichnet sich dadurch aus, dass eine in Strömungsrichtung des Brennstofffluids ausgerichtete Länge des Dämpfungselementes im Wesentlichen zwischen 1 und 100 Millimetern groß ist und/oder dass der Querschnittsdurchmesser der Querschnittsfläche und/oder der Porendurchmesser der Poren im Wesentlichen zwischen 5 und 200 Mikrometern groß ist.

Figure imgaf001
It is an apparatus for injecting a pressurized fuel fluid into a combustion chamber with a pressure generator, at least one injector with injection port and a fuel line between the pressure generator and the injector, wherein at least one damping element between the pressure generator and the injection port of the injector is provided, said Damping element at least one flow path with freely permeable, cross-sectional diameter having a cross-sectional area and / or with freely permeable, having a pore diameter pores proposed. This is characterized by the fact that a length of the damping element oriented in the direction of flow of the fuel fluid is substantially between 1 and 100 millimeters and / or that the cross-sectional diameter of the cross-sectional area and / or the pore diameter of the pores is substantially between 5 and 200 micrometers.
Figure imgaf001
EP20110009811 2010-12-15 2011-12-14 Pulsation dampener Not-in-force EP2466112B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010054675 2010-12-15
DE102010054674 2010-12-15
DE102011116274 2011-10-19

Publications (3)

Publication Number Publication Date
EP2466112A2 EP2466112A2 (en) 2012-06-20
EP2466112A3 true EP2466112A3 (en) 2013-05-29
EP2466112B1 EP2466112B1 (en) 2014-09-03

Family

ID=45421766

Family Applications (3)

Application Number Title Priority Date Filing Date
EP11009813.4A Not-in-force EP2466116B1 (en) 2010-12-15 2011-12-14 Pulsation dampener
EP20110009812 Not-in-force EP2466113B1 (en) 2010-12-15 2011-12-14 Pulsation dampener
EP20110009811 Not-in-force EP2466112B1 (en) 2010-12-15 2011-12-14 Pulsation dampener

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP11009813.4A Not-in-force EP2466116B1 (en) 2010-12-15 2011-12-14 Pulsation dampener
EP20110009812 Not-in-force EP2466113B1 (en) 2010-12-15 2011-12-14 Pulsation dampener

Country Status (4)

Country Link
EP (3) EP2466116B1 (en)
DE (3) DE102011120944A1 (en)
ES (3) ES2525294T3 (en)
HU (1) HUE024519T2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2468118A1 (en) 2010-12-24 2012-06-27 Philip Morris Products S.A. An aerosol generating system with means for disabling a consumable
DE102012220661A1 (en) * 2012-11-13 2014-05-15 Robert Bosch Gmbh Fuel distributor, in particular fuel distributor strip for mixture-compressing, spark-ignited internal combustion engines
DE102013003104A1 (en) * 2013-02-25 2014-08-28 L'orange Gmbh Fuel injector for use with diesel fuel in fuel injection device of fuel injection system, has pressure shock absorber that is arranged in leakage flow path to attenuate pressure waves, which run through leakage flow path to actuator chamber
US9644589B2 (en) * 2013-11-20 2017-05-09 Stanadyne Llc Debris diverter shield for fuel injector
DE102015220550A1 (en) 2015-10-21 2017-04-27 Ford Global Technologies, Llc fuel Injector
DE102016209423A1 (en) * 2016-05-31 2017-11-30 Robert Bosch Gmbh High-pressure accumulator and method for producing a high-pressure accumulator
EP3502461A1 (en) * 2017-12-20 2019-06-26 Continental Automotive GmbH A fuel delivery passage for a fuel injection system and a method of manufacturing a fuel delivery passage
EP3670895B1 (en) * 2018-12-20 2023-10-18 Vitesco Technologies GmbH Fuel rail assembly for a fuel injection system for an internal combustion engine
DE102019103041B4 (en) * 2019-02-07 2022-12-29 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Collector pressure line for a fuel injection system of an internal combustion engine
EP3805547A1 (en) * 2019-10-08 2021-04-14 Vitesco Technologies GmbH Fuel injection assembly and method of manufacturing a fuel rail assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1371840A2 (en) * 2002-06-12 2003-12-17 Robert Bosch Gmbh Fuel injection system with solid damping element
DE10247775A1 (en) * 2002-10-14 2004-04-22 Siemens Ag Accumulator injection system has damping device constructed for multiple reflection and/or absorption of pressure waves and has flow passage of such size that no evident pressure losses ensue
US7093584B1 (en) * 2005-08-19 2006-08-22 Delphi Technologies, Inc. Fuel injector noise mufflers
DE102006054178A1 (en) * 2006-11-16 2008-05-21 Robert Bosch Gmbh Fuel injection system for internal-combustion engine, has pressure oscillation damper with housing, in which units are inserted, which cause running length variation during fuel passage pressure waves by which these are mutually decreased
US20100012091A1 (en) * 2008-07-17 2010-01-21 Robert Bosch Gmbh In-line noise filtering device for fuel system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4356091A (en) 1980-10-06 1982-10-26 Caterpillar Tractor Co. Filtering and dampening apparatus
DE19516358C1 (en) 1995-05-04 1996-08-22 Daimler Benz Ag Fuel pulsation damper in fuel supply system of IC engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1371840A2 (en) * 2002-06-12 2003-12-17 Robert Bosch Gmbh Fuel injection system with solid damping element
DE10247775A1 (en) * 2002-10-14 2004-04-22 Siemens Ag Accumulator injection system has damping device constructed for multiple reflection and/or absorption of pressure waves and has flow passage of such size that no evident pressure losses ensue
US7093584B1 (en) * 2005-08-19 2006-08-22 Delphi Technologies, Inc. Fuel injector noise mufflers
DE102006054178A1 (en) * 2006-11-16 2008-05-21 Robert Bosch Gmbh Fuel injection system for internal-combustion engine, has pressure oscillation damper with housing, in which units are inserted, which cause running length variation during fuel passage pressure waves by which these are mutually decreased
US20100012091A1 (en) * 2008-07-17 2010-01-21 Robert Bosch Gmbh In-line noise filtering device for fuel system

Also Published As

Publication number Publication date
DE102011120944A1 (en) 2012-06-21
EP2466112A2 (en) 2012-06-20
EP2466116A2 (en) 2012-06-20
ES2525294T3 (en) 2014-12-19
EP2466113A3 (en) 2013-05-29
EP2466113A2 (en) 2012-06-20
EP2466113B1 (en) 2014-12-17
DE102011120945A1 (en) 2012-06-21
EP2466116B1 (en) 2014-07-30
EP2466112B1 (en) 2014-09-03
EP2466116A3 (en) 2013-05-29
HUE024519T2 (en) 2016-01-28
DE102011120924A1 (en) 2012-06-21
ES2531313T3 (en) 2015-03-12
ES2509942T3 (en) 2014-10-20

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