EP3061967B1 - Pompe, en particulier pompe haute pression pour carburant - Google Patents

Pompe, en particulier pompe haute pression pour carburant Download PDF

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Publication number
EP3061967B1
EP3061967B1 EP16150017.8A EP16150017A EP3061967B1 EP 3061967 B1 EP3061967 B1 EP 3061967B1 EP 16150017 A EP16150017 A EP 16150017A EP 3061967 B1 EP3061967 B1 EP 3061967B1
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EP
European Patent Office
Prior art keywords
pump
closure element
valve
housing part
base region
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.)
Active
Application number
EP16150017.8A
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German (de)
English (en)
Other versions
EP3061967A1 (fr
Inventor
Achim Koehler
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
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Robert Bosch GmbH
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Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3061967A1 publication Critical patent/EP3061967A1/fr
Application granted granted Critical
Publication of EP3061967B1 publication Critical patent/EP3061967B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/0008—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
    • F04B11/0033—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a mechanical spring
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • 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
    • 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
    • F02M2200/03—Fuel-injection apparatus having means for reducing or avoiding stress, e.g. the stress caused by mechanical force, by fluid pressure or by temperature variations
    • 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
    • F02M2200/26—Fuel-injection apparatus with elastically deformable elements other than coil springs
    • 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
    • F02M2200/90—Selection of particular materials
    • F02M2200/9015—Elastomeric or plastic materials
    • 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
    • F02M59/48—Assembling; Disassembling; Replacing
    • F02M59/485—Means for fixing delivery valve casing and barrel to each other or to pump casing

Claims (9)

  1. Pompe, en particulier pompe à carburant haute pression, comprenant au moins un élément de pompe (10) qui présente un piston de pompe (12) entraîné avec un mouvement de course, qui limite un espace de travail de pompe (14) dans une partie de boîtier (16 ; 116) de la pompe, comprenant une soupape d'admission (24 ; 124), par le biais de laquelle l'espace de travail de pompe (18) peut être connecté à une alimentation (26) pour le milieu à refouler, l'alimentation (26) débouchant dans un espace d'aspiration (42, 66, 68 ; 142) limité par la partie de boîtier (16 ; 116) et un élément de fermeture (64 ; 164) connecté à la partie de boîtier (16 ; 116), l'élément de fermeture (64 ; 164) étant réalisé en forme de pot et présentant une région de fond (72 ; 172) réalisée d'une seule pièce sur celui-ci, laquelle limite l'espace d'aspiration (42, 66, 68 ; 142) sur son côté opposé à la partie de boîtier (16 ; 116), caractérisée en ce que la région de fond (72 ; 172) de l'élément de fermeture (64 ; 164) peut être déformée élastiquement de telle sorte que par déformation élastique de la région de fond (72 ; 172), le volume de l'espace d'aspiration (42, 66, 68 ; 142) puisse être modifié.
  2. Pompe selon la revendication 1, caractérisée en ce que l'élément de fermeture (64) présente une région d'enveloppe (70) s'étendant à partir de la région de fond (72) vers la partie de boîtier (16 ; 116), dont la région d'extrémité opposée à la région de fond (72) est connectée à la partie de boîtier (16 ; 116).
  3. Pompe selon la revendication 2, caractérisée en ce que la région de fond (72) de l'élément de fermeture (64) est réalisée au moins approximativement sous forme plane et/ou en ce que la région d'enveloppe (70) de l'élément de fermeture (64) est réalisée au moins approximativement sous forme cylindrique.
  4. Pompe selon la revendication 1, caractérisée en ce que la région de fond (172) de l'élément de fermeture (164) est réalisée avec une courbure convexe orientée à l'écart de la partie de boîtier (16 ; 116) et en ce que l'élément de fermeture (164) présente une région de bord (170) se raccordant à la région de fond (172), laquelle est connectée à la partie de boîtier (16 ; 116).
  5. Pompe selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la région de fond (72 ; 172) de l'élément de fermeture (64 ; 164) présente une plus faible rigidité que la région d'enveloppe (70) ou la région de cadre (170) de l'élément de fermeture (64 ; 164).
  6. Pompe selon l'une quelconque des revendications précédentes, caractérisée en ce que la soupape d'admission (24) présente un boîtier de soupape (34) dans lequel est guidé un organe de soupape (46), et qui est inséré dans un logement (32) dans la partie de boîtier (16) de la pompe, et en ce que l'élément de fermeture (64 ; 164) est disposé sur le côté du boîtier de soupape (34) opposé à l'espace de travail de pompe (18).
  7. Pompe selon la revendication 6, caractérisée en ce que le boîtier de soupape (34) est retenu par un élément de fixation (40) dans le logement (32) et en ce que l'élément de fermeture (64 ; 164) est disposé du côté de l'élément de fixation (40) opposé au boîtier de soupape (34).
  8. Pompe selon la revendication 7, caractérisée en ce que l'espace d'aspiration (42, 66, 68) s'étend dans le logement (32) en entourant le boîtier de soupape (42) et sur le côté du boîtier de soupape (34) opposé à l'espace de travail de pompe (18) entre celui-ci et l'élément de fermeture (64 ; 164).
  9. Pompe selon l'une quelconque des revendications 1 à 5, caractérisée en ce que la soupape d'admission (124) présente un organe de soupape (146) qui est guidé dans une portion d'alésage (132a) d'un alésage traversant (132) de la partie de boîtier (116) de la pompe se raccordant à l'alésage cylindrique (14), et en ce que l'espace d'aspiration (142) s'étend dans une portion d'alésage (132b) de l'alésage traversant (132) se raccordant du côté de la portion d'alésage (132a) guidant l'organe de soupape (146) opposé à l'alésage cylindrique (14).
EP16150017.8A 2015-02-25 2016-01-04 Pompe, en particulier pompe haute pression pour carburant Active EP3061967B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015203345.7A DE102015203345A1 (de) 2015-02-25 2015-02-25 Pumpe, insbesondere Kraftstoffhochdruckpumpe

Publications (2)

Publication Number Publication Date
EP3061967A1 EP3061967A1 (fr) 2016-08-31
EP3061967B1 true EP3061967B1 (fr) 2018-08-15

Family

ID=55027681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16150017.8A Active EP3061967B1 (fr) 2015-02-25 2016-01-04 Pompe, en particulier pompe haute pression pour carburant

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EP (1) EP3061967B1 (fr)
DE (1) DE102015203345A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201600114815A1 (it) * 2016-11-14 2018-05-14 Bosch Gmbh Robert Gruppo pompa per alimentare combustibile, preferibilmente gasolio, ad un motore a combustione interna
DE102017203427A1 (de) * 2017-03-02 2018-09-06 Robert Bosch Gmbh Pumpenelement für eine Hochdruckpumpe

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2823767A1 (de) * 1978-05-31 1979-12-06 Bosch Gmbh Robert Geraeuschdaempfer fuer druckschwingungen eines foerdermediums
JPH11247742A (ja) * 1998-03-02 1999-09-14 Zexel:Kk プランジャポンプ
DE10362412B3 (de) * 2002-10-19 2017-09-07 Robert Bosch Gmbh Vorrichtung zum Dämpfen von Druckpulsationen in einem Fluidsystem, insbesondere in einem Kraftstoffsystem einer Brennkraftmaschine
DE102004013244A1 (de) 2004-03-18 2005-10-06 Robert Bosch Gmbh Hochdruckpumpe, insbesondere für eine Kraftstoffeinspritzeinrichtung einer Brennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102015203345A1 (de) 2016-08-25
EP3061967A1 (fr) 2016-08-31

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