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WO2012110261A1 - Pompe haute pression pour un dispositif d'injection de carburant - Google Patents

Pompe haute pression pour un dispositif d'injection de carburant Download PDF

Info

Publication number
WO2012110261A1
WO2012110261A1 PCT/EP2012/050224 EP2012050224W WO2012110261A1 WO 2012110261 A1 WO2012110261 A1 WO 2012110261A1 EP 2012050224 W EP2012050224 W EP 2012050224W WO 2012110261 A1 WO2012110261 A1 WO 2012110261A1
Authority
WO
WIPO (PCT)
Prior art keywords
pump
metering unit
pressure pump
fuel
pressure
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.)
Ceased
Application number
PCT/EP2012/050224
Other languages
German (de)
English (en)
Inventor
Sascha Ambrock
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
Priority to CN201280008544.1A priority Critical patent/CN103392069B/zh
Priority to EP12700166.7A priority patent/EP2676032A1/fr
Publication of WO2012110261A1 publication Critical patent/WO2012110261A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F02M63/0265—Pumps feeding common rails
    • 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
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/145—Housings
    • 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
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
    • F04B1/2014—Details or component parts
    • F04B1/2064—Housings
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections

Definitions

  • the invention relates to a high-pressure pump for a fuel injection device of an internal combustion engine, comprising a high-pressure pump housing with a Pumpeninnen nenraum into which opens a feed for fuel, and a metering unit for metering fuel into a pump working space, wherein the metering unit is connected to the pump interior.
  • the flow connection is a bore which, in a further embodiment, in turn connects the pump interior directly to an inlet in the metering unit.
  • the bore is thus arranged so that the inlet is connected to the metering unit without any impairment by, for example, a deflection with the pump interior.
  • the pump interior is fuel-filled at the high-pressure pump, wherein the fuel is supplied via an inlet, which is connected to a fuel low-pressure system.
  • the location of the bore makes it possible to ensure better mixing of the fuel introduced into the interior of the pump, since the inlet and a drain are not directly adjacent to one another. As a result, short-circuit currents of fuel are avoided.
  • This embodiment ensures better cooling of the high pressure pump, which also contributes to an increase in efficiency.
  • FIG. 2 is a detailed sectional view of Figure 1 of the pump interior directly connected to the metering unit flow connection,

Landscapes

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

Abstract

L'invention concerne une pompe haute pression pour un dispositif d'injection de carburant d'un moteur à combustion interne, comportant un carter de pompe (6) présentant une chambre intérieure de pompe (5) dans lequel aboutit une conduite d'amenée (4) de carburant, et une unité de dosage (12) pour doser du carburant dans une chambre de travail de pompe (11), l'unité de dosage (12) étant connectée à la chambre intérieure de pompe (5). Le rendement de la pompe haute pression pour un dispositif d'injection de carburant selon l'invention est amélioré par réduction des pertes de pression. A cet effet, une liaison fluidique reliant directement la chambre intérieure de pompe (5) à l'unité de dosage (12) est ménagée dans le carter de pompe (6).
PCT/EP2012/050224 2011-02-15 2012-01-09 Pompe haute pression pour un dispositif d'injection de carburant Ceased WO2012110261A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201280008544.1A CN103392069B (zh) 2011-02-15 2012-01-09 用于燃料喷射设备的高压泵
EP12700166.7A EP2676032A1 (fr) 2011-02-15 2012-01-09 Pompe haute pression pour un dispositif d'injection de carburant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011004095.1 2011-02-15
DE201110004095 DE102011004095A1 (de) 2011-02-15 2011-02-15 Hochdruckpumpe für eine Kraftstoffspritzvorrichtung

Publications (1)

Publication Number Publication Date
WO2012110261A1 true WO2012110261A1 (fr) 2012-08-23

Family

ID=45470565

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/050224 Ceased WO2012110261A1 (fr) 2011-02-15 2012-01-09 Pompe haute pression pour un dispositif d'injection de carburant

Country Status (4)

Country Link
EP (1) EP2676032A1 (fr)
CN (1) CN103392069B (fr)
DE (1) DE102011004095A1 (fr)
WO (1) WO2012110261A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111148896B (zh) * 2017-09-29 2022-01-11 株式会社电装 高压泵

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004022641A1 (de) * 2003-05-09 2004-12-09 Denso Corp., Kariya Treibstoffförderpumpe einer Brennkraftmaschine
US20050115543A1 (en) * 2003-10-21 2005-06-02 Helmut Rembold High-pressure fuel pump for an internal combustion engine
EP1707799A1 (fr) * 2005-03-30 2006-10-04 Denso Corporation Pompe de carburant à plongeur et système d'alimentation en carburant utilisant la même
US20080237518A1 (en) * 2007-03-29 2008-10-02 Denso Corporation Hydraulic pump
DE102008043444A1 (de) 2008-11-04 2010-05-06 Robert Bosch Gmbh Pumpenanordnung
DE102009001560A1 (de) 2009-03-16 2010-09-23 Robert Bosch Gmbh Hochdruckpumpe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100473821C (zh) * 2005-03-30 2009-04-01 株式会社电装 具有柱塞的燃油泵及使用这种燃油泵的燃油供应系统
JP4318730B2 (ja) * 2007-03-29 2009-08-26 株式会社デンソー 高圧燃料ポンプ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004022641A1 (de) * 2003-05-09 2004-12-09 Denso Corp., Kariya Treibstoffförderpumpe einer Brennkraftmaschine
US20050115543A1 (en) * 2003-10-21 2005-06-02 Helmut Rembold High-pressure fuel pump for an internal combustion engine
EP1707799A1 (fr) * 2005-03-30 2006-10-04 Denso Corporation Pompe de carburant à plongeur et système d'alimentation en carburant utilisant la même
US20080237518A1 (en) * 2007-03-29 2008-10-02 Denso Corporation Hydraulic pump
DE102008043444A1 (de) 2008-11-04 2010-05-06 Robert Bosch Gmbh Pumpenanordnung
DE102009001560A1 (de) 2009-03-16 2010-09-23 Robert Bosch Gmbh Hochdruckpumpe

Also Published As

Publication number Publication date
CN103392069A (zh) 2013-11-13
CN103392069B (zh) 2017-01-18
DE102011004095A1 (de) 2012-08-16
EP2676032A1 (fr) 2013-12-25

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