EP2076669B1 - Module à piston pour pompe haute pression, pompe haute pression comprenant au moins un module à piston - Google Patents

Module à piston pour pompe haute pression, pompe haute pression comprenant au moins un module à piston Download PDF

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Publication number
EP2076669B1
EP2076669B1 EP07788020A EP07788020A EP2076669B1 EP 2076669 B1 EP2076669 B1 EP 2076669B1 EP 07788020 A EP07788020 A EP 07788020A EP 07788020 A EP07788020 A EP 07788020A EP 2076669 B1 EP2076669 B1 EP 2076669B1
Authority
EP
European Patent Office
Prior art keywords
roller
tappet
axis
rotation
roller shoe
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.)
Not-in-force
Application number
EP07788020A
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German (de)
English (en)
Other versions
EP2076669A1 (fr
Inventor
Walter Fuchs
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 EP2076669A1 publication Critical patent/EP2076669A1/fr
Application granted granted Critical
Publication of EP2076669B1 publication Critical patent/EP2076669B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02M59/02—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
    • F02M59/10—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 characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0439—Supporting or guiding means for the pistons
    • 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
    • F02M59/04—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 characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
    • F02M59/06—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 characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams
    • Y10T74/2107—Follower

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating Pumps (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Claims (11)

  1. Module de poussoir pour une pompe haute pression, notamment pour refouler du carburant, comprenant un corps de poussoir de forme cylindrique creuse (52), dans lequel est introduit, dans la direction de l'axe longitudinal (53) du corps de poussoir (52), un sabot de roulement (56), un rouleau (60) étant monté à rotation dans le sabot de roulement (56), caractérisé en ce que le sabot de roulement (56) est disposé perpendiculairement à l'axe de rotation (61) du rouleau (60) avec un faible jeu ou sans jeu dans le corps de poussoir (52), et est disposé dans la direction de l'axe de rotation (61) du rouleau (60) avec un plus grand jeu que perpendiculairement à l'axe de rotation (61) du rouleau (60) dans le corps de poussoir (52).
  2. Module de poussoir selon la revendication 1, caractérisé en ce que le sabot de roulement (56) est pressé dans le corps de poussoir (52) et un ajustement serré est prévu perpendiculairement à l'axe de rotation (61) du rouleau (60) entre le sabot de roulement (56) et le corps de poussoir (52).
  3. Module de poussoir selon la revendication 1 ou 2, caractérisé en ce que le sabot de roulement (56) présente, en section transversale perpendiculairement à l'axe longitudinal (53) du corps de poussoir (52), un plus grand diamètre (D) que le diamètre (d) du sabot de roulement (56) dans la direction de l'axe de rotation (61) du rouleau (60).
  4. Module de poussoir selon la revendication 3, caractérisé en ce que le sabot de roulement (56) est réalisé sous forme ovale en section transversale perpendiculairement à l'axe longitudinal (53) du corps de poussoir (52).
  5. Module de poussoir selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le sabot de roulement (56) vient en appui dans la direction de l'axe longitudinal (53) du corps de poussoir (52) contre une butée (62), et en ce que le sabot de roulement (56) s'applique contre la butée (62) au moins essentiellement uniquement dans la région d'un plan médian (55) s'étendant perpendiculairement à l'axe de rotation (61) du rouleau (60) à travers le sabot de roulement (56).
  6. Module de poussoir selon la revendication 5, caractérisé en ce que le sabot de roulement (56) présente, sur son côté tourné vers la butée (62), dans la région du plan médian (55), un rehaussement (68), avec lequel le sabot de roulement (56) s'applique contre la butée (62).
  7. Module de poussoir selon l'une quelconque des revendications 2 à 6, caractérisé en ce que le corps de poussoir (52), lors du pressage du sabot de roulement (56), est déformé de telle sorte que le corps de poussoir (52) présente, perpendiculairement à l'axe de rotation (61) du rouleau (60), un plus grand diamètre extérieur (D') que le diamètre extérieur (d') du corps de poussoir (52) dans la direction de l'axe de rotation (61) du rouleau (60).
  8. Pompe haute pression, en particulier pour refouler du carburant haute pression pour un dispositif d'injection de carburant d'un moteur à combustion interne, comprenant un arbre d'entraînement (12) avec au moins une came (26) ou un excentrique, avec au moins un élément de pompe (32), qui présente un piston de pompe (34), qui s'appuie par le biais d'un module de poussoir (50) contre la came (26) ou l'excentrique de l'arbre d'entraînement (12), et qui est entraîné par celui-ci dans un mouvement de levage, caractérisée en ce que le module de poussoir (50) est réalisé selon l'une quelconque des revendications 1 à 7.
  9. Pompe haute pression, en particulier pour refouler du carburant haute pression pour un dispositif d'injection de carburant d'un moteur à combustion interne, comprenant un arbre d'entraînement (12) avec au moins une came (26) ou un excentrique, avec au moins un élément de pompe (32), qui présente un piston de pompe (34), qui s'appuie par le biais d'un module de poussoir (50) contre la came (26) ou l'excentrique de l'arbre d'entraînement (12), le module de poussoir (50) présentant un corps de poussoir (52), qui est guidé de manière déplaçable dans un alésage (54) d'une partie de boîtier (10) de la pompe haute pression, et le module de poussoir (50) présentant un sabot de roulement (56), dans lequel est monté à rotation un rouleau (60) qui roule sur la came (26) ou l'excentrique de l'arbre d'entraînement (12), caractérisée en ce que le corps de poussoir (52) est disposé avec un faible jeu dans l'alésage (54) de la partie du boîtier de pompe (10) dans la direction perpendiculaire à l'axe de rotation (61) du rouleau (60), et est disposé avec un plus grand jeu dans la direction de l'axe de rotation (61) du rouleau (60).
  10. Pompe haute pression selon la revendication 9, caractérisée en ce que le corps de poussoir (52) présente, dans la direction perpendiculaire à l'axe de rotation (61) du rouleau (60), un plus grand diamètre extérieur (D') que le diamètre extérieur (d') du corps de poussoir (52) dans la direction de l'axe de rotation (61) du rouleau (60).
  11. Pompe haute pression selon la revendication 10, caractérisée en ce que le corps de poussoir (52) est réalisé sous forme ovale en section transversale perpendiculairement à son axe longitudinal (53).
EP07788020A 2006-09-28 2007-07-30 Module à piston pour pompe haute pression, pompe haute pression comprenant au moins un module à piston Not-in-force EP2076669B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006045933A DE102006045933A1 (de) 2006-09-28 2006-09-28 Stößelbaugruppe für eine Hochdruckpumpe und Hochdruckpumpe mit wenigstens einer Stößelbaugruppe
PCT/EP2007/057811 WO2008037524A1 (fr) 2006-09-28 2007-07-30 Module à piston pour pompe haute pression, pompe haute pression comprenant au moins un module à piston

Publications (2)

Publication Number Publication Date
EP2076669A1 EP2076669A1 (fr) 2009-07-08
EP2076669B1 true EP2076669B1 (fr) 2010-10-06

Family

ID=38577270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07788020A Not-in-force EP2076669B1 (fr) 2006-09-28 2007-07-30 Module à piston pour pompe haute pression, pompe haute pression comprenant au moins un module à piston

Country Status (8)

Country Link
US (1) US20100037865A1 (fr)
EP (1) EP2076669B1 (fr)
JP (1) JP2010505058A (fr)
CN (1) CN101523044A (fr)
AT (1) ATE483907T1 (fr)
BR (1) BRPI0716260A2 (fr)
DE (2) DE102006045933A1 (fr)
WO (1) WO2008037524A1 (fr)

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Also Published As

Publication number Publication date
WO2008037524A1 (fr) 2008-04-03
DE502007005293D1 (de) 2010-11-18
US20100037865A1 (en) 2010-02-18
CN101523044A (zh) 2009-09-02
ATE483907T1 (de) 2010-10-15
DE102006045933A1 (de) 2008-04-03
BRPI0716260A2 (pt) 2013-08-06
EP2076669A1 (fr) 2009-07-08
JP2010505058A (ja) 2010-02-18

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