WO2014206843A1 - Pompe haute pression - Google Patents

Pompe haute pression Download PDF

Info

Publication number
WO2014206843A1
WO2014206843A1 PCT/EP2014/062866 EP2014062866W WO2014206843A1 WO 2014206843 A1 WO2014206843 A1 WO 2014206843A1 EP 2014062866 W EP2014062866 W EP 2014062866W WO 2014206843 A1 WO2014206843 A1 WO 2014206843A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
valve
pump
cylinder head
pressure body
Prior art date
Application number
PCT/EP2014/062866
Other languages
German (de)
English (en)
Inventor
Friedrich Boecking
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 WO2014206843A1 publication Critical patent/WO2014206843A1/fr

Links

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
    • F02M59/44—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
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8069—Fuel injection apparatus manufacture, repair or assembly involving removal of material from the fuel apparatus, e.g. by punching, hydro-erosion or mechanical operation
    • 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
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8076—Fuel injection apparatus manufacture, repair or assembly involving threaded members
    • 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
    • F02M59/46—Valves
    • F02M59/464—Inlet valves of the check valve type

Definitions

  • a high-pressure pump for fuel injection systems of air-compressing, self-igniting internal combustion engines has a pump assembly and a drive shaft.
  • the drive shaft comprises a cam assigned to the pump assembly.
  • the pump assembly has a roller that rolls with its roller surface on a running surface of the cam.
  • the high pressure pump has a multi-part housing, which consists of housing parts.
  • the drive shaft is mounted on bearings in housing parts.
  • a housing part is designed as a cylinder head, in which an outlet valve is provided, can be guided via the high-pressure fuel from a pump working space of the pump assembly to a fuel channel, which is connected for example with a common rail. Through an opening provided on the cylinder head inlet valve is fuel from a fuel passage in the
  • Cylinder head flange is screwed in, and that by screwing in the
  • the cylinder head flange 2 is connected to the component 7 via a flange screw 8, which engages in a threaded bore 9 of the component 7.
  • a plurality of flange bores 10 are preferably configured in the cylinder head flange 2, to the
  • Cylinder head flange 2 to connect via a plurality of such flange 8 with the component 7.
  • a pump piston 21 is arranged, which is guided in the cylinder bore 18 along the axis 20.
  • the pump piston 21 defines with its end face 22 in the cylinder bore 18 a pump working space 23.
  • the cylinder head flange 2 has a recess 24 with a shoulder 25.
  • a locking screw 35 is provided, which is screwed into a threaded bore 36 of the cylinder head flange 2.
  • a valve spring chamber 37 of the suction valve 30 is configured here in the screw plug 35.
  • a valve spring 38 of the suction valve 30 is arranged, which is supported on the one hand on an end face 39 of the high pressure body 15 and on the other hand on a connected to the valve piece 34 support ring 40. The valve spring 38 thereby acts on the valve closing body 33 with a biasing force against the valve seat surface 32.

Landscapes

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

Abstract

L'invention concerne une pompe haute pression (1), laquelle sert en particulier à des systèmes d'injection de carburant de moteurs à combustion interne à compression d'air et à auto-allumage. Cette pompe comprend un ensemble pompe (3) et une bride de culasse (2). L'ensemble pompe (3) comprend un alésage de cylindre (18) et un piston de pompe (21) guidé dans l'alésage de cylindre (18). Selon l'invention, le piston de pompe (21) délimite dans l'alésage de cylindre (18) une chambre de travail de pompe (23) de l'ensemble pompe (3). En outre, un corps haute pression (15) pour l'ensemble pompe (3) est présent. L'alésage de cylindre (18) est ménagé dans le corps haute pression (15). Selon l'invention, la bride de culasse (2) loge en partie le corps haute pression (15).
PCT/EP2014/062866 2013-06-26 2014-06-18 Pompe haute pression WO2014206843A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013212261.6 2013-06-26
DE201310212261 DE102013212261A1 (de) 2013-06-26 2013-06-26 Hochdruckpumpe

Publications (1)

Publication Number Publication Date
WO2014206843A1 true WO2014206843A1 (fr) 2014-12-31

Family

ID=51220543

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/062866 WO2014206843A1 (fr) 2013-06-26 2014-06-18 Pompe haute pression

Country Status (2)

Country Link
DE (1) DE102013212261A1 (fr)
WO (1) WO2014206843A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107489572A (zh) * 2017-07-31 2017-12-19 成都威特电喷有限责任公司 一体式高压供油油泵

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016177431A1 (fr) 2015-05-07 2016-11-10 Volvo Truck Corporation Ensemble de pompe à carburant
ITUB20156824A1 (it) * 2015-12-09 2017-06-09 Magneti Marelli Spa Pompa carburante alleggerita per un sistema di iniezione diretta e relativo metodo di montaggio

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1275845A2 (fr) * 2001-07-13 2003-01-15 Robert Bosch Gmbh Pompe à combustible haute-pression
WO2011098332A1 (fr) * 2010-02-12 2011-08-18 Robert Bosch Gmbh Culasse pour pompe à carburant haute pression
WO2011098320A1 (fr) * 2010-02-12 2011-08-18 Robert Bosch Gmbh Culasse pour pompe à carburant haute pression
DE102010028036A1 (de) * 2010-04-21 2011-10-27 Robert Bosch Gmbh Hochdruckpumpe
DE102010030586A1 (de) * 2010-06-28 2011-12-29 Robert Bosch Gmbh Metallisches Bauteil für Hochdruckanwendungen
DE102012205190A1 (de) * 2011-03-31 2012-10-04 Denso Corporation Hochdruckpumpe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009003054A1 (de) 2009-05-13 2010-11-18 Robert Bosch Gmbh Hochdruckpumpe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1275845A2 (fr) * 2001-07-13 2003-01-15 Robert Bosch Gmbh Pompe à combustible haute-pression
WO2011098332A1 (fr) * 2010-02-12 2011-08-18 Robert Bosch Gmbh Culasse pour pompe à carburant haute pression
WO2011098320A1 (fr) * 2010-02-12 2011-08-18 Robert Bosch Gmbh Culasse pour pompe à carburant haute pression
DE102010028036A1 (de) * 2010-04-21 2011-10-27 Robert Bosch Gmbh Hochdruckpumpe
DE102010030586A1 (de) * 2010-06-28 2011-12-29 Robert Bosch Gmbh Metallisches Bauteil für Hochdruckanwendungen
DE102012205190A1 (de) * 2011-03-31 2012-10-04 Denso Corporation Hochdruckpumpe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107489572A (zh) * 2017-07-31 2017-12-19 成都威特电喷有限责任公司 一体式高压供油油泵

Also Published As

Publication number Publication date
DE102013212261A1 (de) 2014-12-31

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