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WO2008009489A1 - Pompe haute pression à commande par bielle-manivelle destinée, en particulier, à alimenter en carburant sous haute pression des systèmes d'injection - Google Patents

Pompe haute pression à commande par bielle-manivelle destinée, en particulier, à alimenter en carburant sous haute pression des systèmes d'injection Download PDF

Info

Publication number
WO2008009489A1
WO2008009489A1 PCT/EP2007/052534 EP2007052534W WO2008009489A1 WO 2008009489 A1 WO2008009489 A1 WO 2008009489A1 EP 2007052534 W EP2007052534 W EP 2007052534W WO 2008009489 A1 WO2008009489 A1 WO 2008009489A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
channel
housing
crosshead
fuel
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/EP2007/052534
Other languages
German (de)
English (en)
Inventor
Wolfgang Bloching
Ümit Dilalan
Mario Köhler
Stephan Notzon
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.)
Siemens AG
Continental Automotive GmbH
Siemens Corp
Original Assignee
Siemens AG
Continental Automotive GmbH
Siemens Corp
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 Siemens AG, Continental Automotive GmbH, Siemens Corp filed Critical Siemens AG
Publication of WO2008009489A1 publication Critical patent/WO2008009489A1/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
    • 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
    • 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
    • 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
    • F04B1/0413—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
    • 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
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/144—Adaptation of piston-rods
    • 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
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/144—Adaptation of piston-rods
    • F04B53/146—Piston-rod guiding arrangements
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams

Definitions

  • High-pressure crank drive pump in particular for high-pressure fuel supply in fuel injection systems
  • the invention relates to a high-pressure Kur Hä ⁇ pump, in particular for high-pressure fuel supply in fuel injection systems, with a housing in which one or more piston-cylinder units are arranged with a crosshead or crossheads, each crosshead guided in a cylinder of the housing and is connected via a connecting rod with a drive shaft.
  • a cross-head of such a high-pressure pump must take Crankshaft to the high pressure piston axis on ⁇ which extends from the rotational angle of the connecting rod erge ⁇ ben large transverse forces perpendicular. Furthermore, there is the problem that during the pressure stroke of the crank drive pump, the crosshead must displace considerable amounts of force ⁇ material in a short time. So that no undesirably high pressure build-up takes place, it is required that the fuel is returned to the pressure side facing away from the crosshead to ⁇ .
  • the aforementioned problems have been solved in that the crosshead is flattened on the sides ⁇ surfaces.
  • the pressure compensation is achieved via holes in the support piston.
  • a channel is arranged, which connects the funnelkopfOber ⁇ page with the funnelkopfSchseite. This will advantageously realized a simple pressure equalization.
  • the channel is arranged axially parallel to the cylinder in ⁇ nenwand.
  • the channel is advantageously arranged on the unloaded side of the crosshead runway. He can advantageously extend on the side surface of the housing and - to save money - are poured directly into the housing.
  • the drawing shows a cross section through a high-pressure crank drive pump.
  • high-pressure crank drive pump is used in particular for high-pressure fuel supply in fuel injection systems.
  • a housing 3 in which a plurality of piston-cylinder units are arranged with crossheads 2.
  • only one piston-cylinder unit is Darge ⁇ provides.
  • Each crosshead 2 is ge ⁇ leads in a cylinder 10 of the housing 3 and connected via a connecting rod 12 with a drive shaft 14, wherein by rotating the drive shaft 14 of the crosshead 2 on the connecting rod 12 in the cylinder 10 is moved up and down and in each case via a compressor piston 8 causes a compression of the sucked fuel.
  • a channel 1 is arranged in the housing 3.
  • the ⁇ ser channel 1 connects the cross-head top O with the cross gropfGermanseite U.
  • the channel is in the exemplary embodiment before ⁇ some manner axially parallel to the cylinder inner wall angeord ⁇ net, this facilitates in particular the production and ensures In addition, for a space-saving arrangement of the channel in the hous ⁇ se.
  • this channel may be designed for example as rectangular or half round ⁇ channel.
  • the channel 1 extends preferential ⁇ axis parallel to the cylinder inner wall and can be cast directly into the housing 3, so that no mechanical Be ⁇ processing is required.
  • the channel 1 is advantageously always in the unloaded area of the crosshead track, so that the wing is not unnecessarily reduced and no excessive wear on ⁇ occurs.
  • the channel 1 or, for example, a plurality of channels on the side surface of the housing 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

L'invention concerne une pompe haute pression à commande par bielle-manivelle, destinée, en particulier, à alimenter en carburant sous haute-pression des systèmes d'injection, ladite pompe comprenant un logement (3) à l'intérieur duquel de nombreuses unités de cylindres à piston sont disposées et qui sont dotées de têtes de piston (2). Chaque tête de piston (2) est guidée à l'intérieur d'un cylindre (10) du logement (3) et elle est reliée à une tige de commande (14) au moyen d'une bielle (12). Selon l'invention, un conduit (1) qui relie la face supérieure (O) et le fond (U) de la tête de piston est placé dans le logement (3).
PCT/EP2007/052534 2006-07-19 2007-03-16 Pompe haute pression à commande par bielle-manivelle destinée, en particulier, à alimenter en carburant sous haute pression des systèmes d'injection Ceased WO2008009489A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610033472 DE102006033472B4 (de) 2006-07-19 2006-07-19 Hochdruck-Kurbeltriebpumpe, insbesondere zur Kraftstoff-Hochdruckversorgung bei Kraftstoff-Einspritzsystemen
DE102006033472.8 2006-07-19

Publications (1)

Publication Number Publication Date
WO2008009489A1 true WO2008009489A1 (fr) 2008-01-24

Family

ID=38270655

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/052534 Ceased WO2008009489A1 (fr) 2006-07-19 2007-03-16 Pompe haute pression à commande par bielle-manivelle destinée, en particulier, à alimenter en carburant sous haute pression des systèmes d'injection

Country Status (2)

Country Link
DE (1) DE102006033472B4 (fr)
WO (1) WO2008009489A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012049069A1 (fr) * 2010-10-14 2012-04-19 Continental Automotive Gmbh Pompe à haute pression

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203063B (de) * 1961-08-02 1965-10-14 Milton Roy Co Vorrichtung zum Schmieren der Kugelgelenk-verbindungen der Pleuelstange mit der Kurbel und dem Kreuzkopf einer Kolbenpumpe mit veraenderlicher Foerderleistung
US4313714A (en) * 1979-10-01 1982-02-02 Kubeczka Johnny D High pressure radial pump
DE3206152A1 (de) * 1982-02-11 1983-08-25 Maschinenfabrik Sulzer-Burckhardt AG, 4002 Basel Kreuzkopf einer kolbenmaschine
US6457309B1 (en) * 2001-05-18 2002-10-01 Joseph Carl Firey Multifuel internal combustion stirling engine
WO2006037671A1 (fr) * 2004-10-06 2006-04-13 Siemens Aktiengesellschaft Pompe a piston radial

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1528423A1 (de) * 1965-03-27 1969-08-14 Gewerk Eisenhuette Westfalia Meh?er-Kolbenpumpe,insbesondere zur Druckmittelfoerderung fuer den hydraulischen Ausbau im Untertagebetrieb

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203063B (de) * 1961-08-02 1965-10-14 Milton Roy Co Vorrichtung zum Schmieren der Kugelgelenk-verbindungen der Pleuelstange mit der Kurbel und dem Kreuzkopf einer Kolbenpumpe mit veraenderlicher Foerderleistung
US4313714A (en) * 1979-10-01 1982-02-02 Kubeczka Johnny D High pressure radial pump
DE3206152A1 (de) * 1982-02-11 1983-08-25 Maschinenfabrik Sulzer-Burckhardt AG, 4002 Basel Kreuzkopf einer kolbenmaschine
US6457309B1 (en) * 2001-05-18 2002-10-01 Joseph Carl Firey Multifuel internal combustion stirling engine
WO2006037671A1 (fr) * 2004-10-06 2006-04-13 Siemens Aktiengesellschaft Pompe a piston radial

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012049069A1 (fr) * 2010-10-14 2012-04-19 Continental Automotive Gmbh Pompe à haute pression

Also Published As

Publication number Publication date
DE102006033472B4 (de) 2009-01-02
DE102006033472A1 (de) 2008-01-24

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