EP0874152B1 - Dispositif d'étranglement - Google Patents

Dispositif d'étranglement Download PDF

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Publication number
EP0874152B1
EP0874152B1 EP98102040A EP98102040A EP0874152B1 EP 0874152 B1 EP0874152 B1 EP 0874152B1 EP 98102040 A EP98102040 A EP 98102040A EP 98102040 A EP98102040 A EP 98102040A EP 0874152 B1 EP0874152 B1 EP 0874152B1
Authority
EP
European Patent Office
Prior art keywords
duct
insert
throttle
throttle opening
throttle element
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.)
Expired - Lifetime
Application number
EP98102040A
Other languages
German (de)
English (en)
Other versions
EP0874152A3 (fr
EP0874152A2 (fr
Inventor
Wolfgang Fehlmann
Andreas Dutt
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 EP0874152A2 publication Critical patent/EP0874152A2/fr
Publication of EP0874152A3 publication Critical patent/EP0874152A3/fr
Application granted granted Critical
Publication of EP0874152B1 publication Critical patent/EP0874152B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/794—With means for separating solid material from the fluid

Claims (5)

  1. Elément d'étranglement destiné à être monté dans une pompe d'injection de carburant comportant un orifice d'étranglement (9) limitant le débit de liquide passant d'un espace (1) à un autre espace (4) de la pompe d'injection, dans lequel
    l'élément d'étranglement est réalisé sous la forme d'un insert (5) et une partie de sa paroi périphérique (11) est appliquée de manière étanche contre la paroi (4) d'un canal (2) traversé par un liquide ;
    l'orifice d'étranglement (9) est réalisé entre les deux cotés de l'insert (5) et, en aval de l'organe d'étranglement (9), il est prévu un filtre ;
    caractérisé par
    une rainure annulaire (10) entre la paroi (4) du canal et l'insert (5), cette rainure étant en aval de l'orifice d'étranglement (9) forme une paroi périphérique de l'insert (5) adjacent en aval de la rainure annulaire (10) et constitue avec la paroi (4) du canal (2), un intervalle annulaire (14) servant de filtre, et faisant partie de la liaison entre les cotés de l'insert (5) ; la section de l'intervalle annulaire (14) est supérieure à la section de l'orifice d'étranglement (9).
  2. Elément d'étranglement selon la revendication 1,
    caractérisé en ce que
    la rainure annulaire (10) est prévue dans la paroi périphérique (11) de l'insert (5).
  3. Elément d'étranglement selon la revendication 1 ou 2,
    caractérisé en ce que
    l'insert (5) est monté dans le canal (2) à l'endroit ou celui-ci débouche suivant une direction pratiquement perpendiculaire, dans le côté d'alimentation du canal de liaison (1) traversé par le liquide.
  4. Elément d'étranglement selon la revendication 3,
    caractérisé en ce que
    le canal (2) forme une zone d'eaux mortes avec le canal de liaison (1) entre une seconde face frontale (17) de l'insert (5) et le canal de liaison (1).
  5. Elément d'étranglement selon l'une des revendications précédentes,
    caractérisé en ce que
    l'insert (5) est réalisé sous la forme d'une pièce cylindrique de section circulaire enfoncée de force dans le canal (2) et ayant une zone périphérique de diamètre réduit pour former l'intervalle annulaire (14), et l'orifice d'étranglement est prévu dans un canal débouchant dans le trou borgne (8), en partant radialement de la rainure annulaire (10).
EP98102040A 1997-04-25 1998-02-06 Dispositif d'étranglement Expired - Lifetime EP0874152B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29707496U DE29707496U1 (de) 1997-04-25 1997-04-25 Drosselelement
DE29707496U 1997-04-25

Publications (3)

Publication Number Publication Date
EP0874152A2 EP0874152A2 (fr) 1998-10-28
EP0874152A3 EP0874152A3 (fr) 2000-10-25
EP0874152B1 true EP0874152B1 (fr) 2004-10-06

Family

ID=8039537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98102040A Expired - Lifetime EP0874152B1 (fr) 1997-04-25 1998-02-06 Dispositif d'étranglement

Country Status (4)

Country Link
US (1) US6162029A (fr)
EP (1) EP0874152B1 (fr)
JP (1) JP4243365B2 (fr)
DE (2) DE29707496U1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10048365B4 (de) * 2000-09-29 2005-01-27 Robert Bosch Gmbh Drosselelement mit Spaltfilter
JP3841054B2 (ja) * 2002-08-08 2006-11-01 株式会社デンソー フィルタおよびそれを用いた燃料噴射装置
DE102012207431A1 (de) * 2012-05-04 2013-11-07 Robert Bosch Gmbh Kraftstoffhochdruckpumpe
GB2564654A (en) * 2017-07-17 2019-01-23 Delphi Int Operations Luxembourg Sarl High pressure fuel pump
DE102022205544A1 (de) 2022-05-31 2023-11-30 Robert Bosch Gesellschaft mit beschränkter Haftung Drosselelement
US11753996B1 (en) * 2022-08-25 2023-09-12 Collins Engine Nozzles, Inc. Fuel injector manifold having trim device therein

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE407584C (de) * 1924-05-25 1924-12-24 Maschf Augsburg Nuernberg Ag Druckventil fuer die Einspritzleitung von Verbrennungskraftmaschinen mit luftloser Einspritzung
GB925937A (en) * 1959-06-05 1963-05-15 Tatra Np Improvements in and relating to fuel injection arrangements for compression-ignitionengines
US4186909A (en) * 1978-05-23 1980-02-05 Dynex/Rivett, Inc. Fail-to-neutral module
US4676273A (en) * 1986-10-07 1987-06-30 General Motors Corporation Electro-hydraulic pressure regulating valve
GB8828157D0 (en) * 1988-12-02 1989-01-05 Lucas Ind Plc Fuel injection nozzles
DE4142998C1 (fr) * 1991-12-24 1993-07-22 Robert Bosch Gmbh, 7000 Stuttgart, De
DE4237469B4 (de) * 1992-11-06 2004-05-13 Robert Bosch Gmbh Kraftstoffeinspritzeinrichtung, insbesondere Pumpedüse für Brennkraftmaschinen
US5333637A (en) * 1993-06-11 1994-08-02 Rosemount Inc. Pneumatic instrument particle trap
DE29710159U1 (de) * 1997-06-11 1998-10-08 Bosch Gmbh Robert Drosselelement

Also Published As

Publication number Publication date
DE29707496U1 (de) 1998-08-20
JP4243365B2 (ja) 2009-03-25
EP0874152A3 (fr) 2000-10-25
US6162029A (en) 2000-12-19
DE59812059D1 (de) 2004-11-11
EP0874152A2 (fr) 1998-10-28
JPH10325375A (ja) 1998-12-08

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