EP3430261A1 - Pompe haute pression comprenant un amortisseur de fluide - Google Patents

Pompe haute pression comprenant un amortisseur de fluide

Info

Publication number
EP3430261A1
EP3430261A1 EP17701506.2A EP17701506A EP3430261A1 EP 3430261 A1 EP3430261 A1 EP 3430261A1 EP 17701506 A EP17701506 A EP 17701506A EP 3430261 A1 EP3430261 A1 EP 3430261A1
Authority
EP
European Patent Office
Prior art keywords
pump
pressure
pressure pump
chamber
membrane
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
EP17701506.2A
Other languages
German (de)
English (en)
Other versions
EP3430261B1 (fr
Inventor
Daniel Keilbach
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 EP3430261A1 publication Critical patent/EP3430261A1/fr
Application granted granted Critical
Publication of EP3430261B1 publication Critical patent/EP3430261B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • 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
    • 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
    • F04B11/0016—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a fluid 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0041—Means for damping pressure pulsations

Definitions

  • Pump plunger is arranged to promote the fuel.
  • a pump working space is arranged adjacent to the pump cylinder guide to which an electromagnetically actuated suction valve from an engine room of the high-pressure pump fuel is supplied. Furthermore, the high-pressure pump to a fluid damper outside of the high-pressure pump to the
  • Pump housing is arranged in the region of a feed for fuel.
  • the fluid damper is installed in a housing shell, the outside of the
  • the fuel injection system is designed for example as a common-rail fuel injection system and for injecting fuel, for example, diesel fuel or gasoline is formed in a combustion chamber of the internal combustion engine.
  • fuel for example, diesel fuel or gasoline
  • Suction valve 6 has a connector 7 for electrical connection to an electronic control device.

Landscapes

  • 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)

Abstract

L'invention concerne une pompe haute pression, comprenant un carter de pompe (2) sur lequel une culasse de pompe (4) comportant un cylindre de pompe (3) est disposée, un poussoir de pompe (26) étant disposé dans un guide de cylindre de pompe (27) du cylindre de pompe (3), lequel poussoir de pompe coopère avec une chambre de travail de pompe (36) et une chambre de mécanisme d'entraînement (8) disposée dans le carter de pompe (2), et la chambre de travail de pompe (36) étant en liaison fluidique avec la chambre de mécanisme d'entraînement (8) par le biais d'une soupape d'aspiration (6) pouvant être actionnée de manière électromagnétique et la pompe haute pression comprenant un amortisseur de fluide. L'invention vise à obtenir une pompe haute pression qui est améliorée en termes d'amortissement des variations de la pression ou des pulsations de pression d'un fluide à refouler. Cet objectif est atteint par le fait que l'amortisseur de fluide est réalisé sous la forme d'au moins un diaphragme (38a, 38b) qui est inséré dans une chambre d'amortisseur (19) encastrée dans le carter de pompe (2).
EP17701506.2A 2016-03-14 2017-01-26 Pompe à haute pression ayant un amortisseur fluidique de pulsations Active EP3430261B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016204128.2A DE102016204128A1 (de) 2016-03-14 2016-03-14 Hochdruckpumpe
PCT/EP2017/051651 WO2017157554A1 (fr) 2016-03-14 2017-01-26 Pompe haute pression comprenant un amortisseur de fluide

Publications (2)

Publication Number Publication Date
EP3430261A1 true EP3430261A1 (fr) 2019-01-23
EP3430261B1 EP3430261B1 (fr) 2022-01-26

Family

ID=57890837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17701506.2A Active EP3430261B1 (fr) 2016-03-14 2017-01-26 Pompe à haute pression ayant un amortisseur fluidique de pulsations

Country Status (5)

Country Link
EP (1) EP3430261B1 (fr)
KR (1) KR20180121982A (fr)
CN (1) CN108779766B (fr)
DE (1) DE102016204128A1 (fr)
WO (1) WO2017157554A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017213891B3 (de) * 2017-08-09 2019-02-14 Continental Automotive Gmbh Kraftstoffhochdruckpumpe für ein Kraftstoffeinspritzsystem
DE102018001129A1 (de) 2018-02-12 2019-08-14 Daimler Ag Kraftstoffhochdruckpumpe für eine Verbrennungskraftmaschine eines Kraftfahrzeugs, insbesondere eines Kraftwagens

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW384358B (en) * 1997-09-25 2000-03-11 Mitsubishi Electric Corp High pressure fuel supply pump body for an in-cylinder fuel injection engine
EP1411236B1 (fr) * 2002-10-19 2012-10-10 Robert Bosch Gmbh Dispositif pour l'atténuation des pulsations de pression dans un système de fluide, en particulier dans un système de carburant d'un moteur à combustion interne
JP2008057451A (ja) * 2006-08-31 2008-03-13 Hitachi Ltd 高圧燃料供給ポンプ
JP5051279B2 (ja) * 2009-12-21 2012-10-17 株式会社デンソー 定残圧弁
US8727752B2 (en) * 2010-10-06 2014-05-20 Stanadyne Corporation Three element diaphragm damper for fuel pump
JP5628121B2 (ja) * 2011-09-20 2014-11-19 日立オートモティブシステムズ株式会社 高圧燃料供給ポンプ
DE102013207393A1 (de) 2013-04-24 2014-10-30 Robert Bosch Gmbh Kolbenpumpe, insbesondere Hochdruckpumpe für ein Kraftstoffsystem für eine Brennkraftmaschine

Also Published As

Publication number Publication date
CN108779766A (zh) 2018-11-09
WO2017157554A1 (fr) 2017-09-21
CN108779766B (zh) 2020-07-17
DE102016204128A1 (de) 2017-09-14
KR20180121982A (ko) 2018-11-09
EP3430261B1 (fr) 2022-01-26

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