WO2006131412A1 - Soupape, notamment soupape d'aspiration disposee cote aspiration de systemes d'injection de carburant - Google Patents

Soupape, notamment soupape d'aspiration disposee cote aspiration de systemes d'injection de carburant Download PDF

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Publication number
WO2006131412A1
WO2006131412A1 PCT/EP2006/061468 EP2006061468W WO2006131412A1 WO 2006131412 A1 WO2006131412 A1 WO 2006131412A1 EP 2006061468 W EP2006061468 W EP 2006061468W WO 2006131412 A1 WO2006131412 A1 WO 2006131412A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
piston chamber
rounding
fuel
fuel injection
Prior art date
Application number
PCT/EP2006/061468
Other languages
German (de)
English (en)
Inventor
Marcus Kristen
Achim Koehler
Sascha Ambrock
Dietmar Ottenbacher
Bertram Schweitzer
Christian Langenbach
Joerg Wuerz
Saban Akmese
Marco Lamm
Karl-Heinz Traub
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 WO2006131412A1 publication Critical patent/WO2006131412A1/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
    • 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
    • F02M37/0023—Valves in the fuel supply and return system
    • 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
    • F02M59/462—Delivery valves
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • 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
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F04B53/1022—Disc valves having means for guiding the closure member axially
    • 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
    • F02M37/0047—Layout or arrangement of systems for feeding fuel

Definitions

  • Valve in particular for use as a suction valve on the suction side of fuel injection systems
  • the invention relates to a valve, in particular for use as a suction valve on the suction side of fuel injection systems, according to the preamble of claim 1.
  • an amount of fuel can be controlled, which is sucked by the pump of a fuel injection system from a reservoir for fuel.
  • Object of the present invention is to develop a valve of the type mentioned so that this has particularly good filling properties, so that very high Fuel quantities per unit time can be provided.
  • the housing portion in which the valve piston chamber and the at least one line are arranged less loaded, so that optionally the wall thicknesses of the housing can be reduced.
  • the calmed fuel flow causes adjacent materials are less heavily loaded.
  • An embodiment according to dependent claim 6 has the advantage that the flow of the fuel can be calmed in the immediate vicinity of the valve seat, so that a vortex formation in the region of the valve seat can be largely avoided.
  • An embodiment according to dependent claim 9 offers the advantage of being able to influence the geometry of the rounding and / or chamfer particularly accurate.
  • Figure 1 is a schematic representation of a fuel injection system of an internal combustion engine with a valve disposed on the suction side;
  • Figure 2 is a sectional side view of a valve according to the prior art
  • Figure 3 is a sectional side view of a valve according to the invention according to a first embodiment of the present invention.
  • Figure 4 is a sectional side view of a valve according to the invention according to a second embodiment of the present invention. Description of the embodiments
  • a fuel injection system of an internal combustion engine as a whole carries the reference numeral 100. It comprises a fuel tank 120, from which a delivery system 140 delivers the fuel to a fuel rail ("rail") 160.
  • the conveyor system 140 may include a prefeed pump, a high pressure pump, and a suction valve designated 3, 4, or 10 with respect to various embodiments.
  • the fuel injection device 180 Connected to the fuel manifold 160 are a plurality of fuel injectors 180, only one of which is shown in FIG.
  • the fuel injection device 180 has a high-pressure connection 200.
  • the fuel injection device 180 is assigned to a combustion chamber 220, in which it injects the fuel directly.
  • a return line 240 returns to the fuel tank 120.
  • the return line 240 is connected to the fuel injection device 180 via a low pressure port 260.
  • a valve carries the reference numeral 10.
  • the valve 10 belongs to the prior art and has a housing 12 in which a valve piston 14 is slidably mounted.
  • the valve piston 14 has, at its lower end in FIG. 2, a valve disk 16 which, in the closed position of the valve 10, seals against a valve seat 18 provided in the housing 12.
  • the valve piston 14 is held by means of a valve spring 20 in the closed position of the valve 10.
  • the valve spring 20 is supported on the outside of the housing 12 and is positioned there by means of an annular shoulder 22 formed on the housing 12.
  • the valve spring 20 cooperates at its end remote from the housing 12 with a support element 24, which in turn cooperates via a ring element 26 with the valve piston 14.
  • the transition region between the conduit 28a and the valve piston chamber 32 is designated 36a; the transition region between the conduit 28b and the valve piston chamber 32 with 36b.
  • transition regions 36a and 36b are formed according to the prior art sharp-edged and correspond to the penetration lines between the cylindrical lines 28a and 28b on the one hand and the cylindrical valve piston chamber 32 on the other.
  • valve according to the present invention as a whole bears the reference numeral 3.
  • the valve 3 has lines 28a and 28b, can flow through the fuel in a valve piston chamber 32.
  • a rounding 38a is provided in the transition region between the wall 30a of the line 28a and the wall 34 of the valve piston chamber 32.
  • a rounding 38 b is provided between the wall 30 b of the line 28 b and the wall 34 of the valve piston chamber 32.
  • the fillets 38a and 38b cause fuel flowing in through the lines 28a and 28b to flow without turbulence in the direction of the valve disk 16 of the valve piston 14.
  • the fillets 38 a and 38 b are provided adjacent to the valve seat 18 to avoid turbulence in the area adjacent to the valve plate 16 region of the valve piston chamber 32.
  • a valve carries the reference numeral 4. This has a similar to valve 3 (see Figure 3) structure, so that only the differences from the valve 3 should be discussed here.
  • the valve 4 has between the lines 28a and 28b on the one hand and the valve piston chamber 32 on the other hand not only to the valve seat 18 adjacent fillets 38a and 38b, but also fillets 40a and 40b, which are arranged in the position facing away from the valve seat 18.

Landscapes

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

Abstract

L'invention concerne une soupape (3, 4), notamment une soupape d'aspiration disposée côté aspiration de systèmes d'injection de carburant (100), comportant un espace de piston à soupape (32) formé dans un boîtier (12), cet espace étant en liaison avec au moins une conduite (28a, 28b) formée dans le boîtier (12). Selon l'invention, la soupape (3, 4) comprend, entre la conduite (28a, 28b) et l'espace de piston à soupape (32), au moins en partie un arrondi (38a, 38b, 40a, 40b) et/ou un chanfrein.
PCT/EP2006/061468 2005-06-09 2006-04-10 Soupape, notamment soupape d'aspiration disposee cote aspiration de systemes d'injection de carburant WO2006131412A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510026511 DE102005026511A1 (de) 2005-06-09 2005-06-09 Ventil, insbesondere zur Verwendung als Saugventil auf der Saugseite von Kraftstoffeinspritzsystemen
DE102005026511.1 2005-06-09

Publications (1)

Publication Number Publication Date
WO2006131412A1 true WO2006131412A1 (fr) 2006-12-14

Family

ID=36587183

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/061468 WO2006131412A1 (fr) 2005-06-09 2006-04-10 Soupape, notamment soupape d'aspiration disposee cote aspiration de systemes d'injection de carburant

Country Status (2)

Country Link
DE (1) DE102005026511A1 (fr)
WO (1) WO2006131412A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007037084A1 (de) 2007-08-06 2009-02-12 Robert Bosch Gmbh Kraftstoffhochdruckpumpe
DE102009003092A1 (de) 2009-05-14 2010-11-18 Robert Bosch Gmbh Ventil für ein Kraftstoffeinspritzsystem
ITMI20131164A1 (it) * 2013-07-10 2015-01-11 Bosch Gmbh Robert Gruppo pompa per alimentare combustibile, preferibilmente gasolio, ad un motore a combustione interna

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB709837A (en) * 1950-12-05 1954-06-02 Ustav Motorovych Vozidel A delivery valve for pumps supplying liquid fuel to internal combustion engines
US4520772A (en) * 1984-03-02 1985-06-04 Walbro Corporation Fuel shut-off valve for internal combustion engines
US4578164A (en) * 1983-08-24 1986-03-25 Nissan Motor Co., Ltd. Method of electrolytically finishing spray-hole of fuel injection nozzle
WO2000017513A1 (fr) * 1998-09-24 2000-03-30 Siemens Aktiengesellschaft Soupape d'injection de carburant destinee a un moteur a combustion interne
US20020113219A1 (en) * 2001-02-14 2002-08-22 Robert Bosch Gmbh Pressure control valve
JP2002250258A (ja) * 2001-02-22 2002-09-06 Denso Corp 燃料噴射装置用定残圧弁
EP1321663A2 (fr) * 2001-12-19 2003-06-25 Robert Bosch Gmbh Dispositif d'injection de combustible pour moteur à combustion interne
US20040007683A1 (en) * 2002-07-12 2004-01-15 Betts Industries, Inc. Hydraulic actuated vapor recovery valve
WO2004056530A2 (fr) * 2002-12-20 2004-07-08 Volkswagen Mechatronic Gmbh & Co. Kg Procedes d'usinage d'une arete d'un composant resistant aux pressions elevees, notamment procedes d'arrondissage hydro-erosif d'une arete, et dispositif correspondant
DE10309456A1 (de) * 2003-03-05 2004-09-16 Mtu Aero Engines Gmbh Vorrichtung und Verfahren zur Oberflächenbearbeitung eines Werkstückes
JP2005139953A (ja) * 2003-11-05 2005-06-02 Denso Corp 燃料圧力制御弁

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB709837A (en) * 1950-12-05 1954-06-02 Ustav Motorovych Vozidel A delivery valve for pumps supplying liquid fuel to internal combustion engines
US4578164A (en) * 1983-08-24 1986-03-25 Nissan Motor Co., Ltd. Method of electrolytically finishing spray-hole of fuel injection nozzle
US4520772A (en) * 1984-03-02 1985-06-04 Walbro Corporation Fuel shut-off valve for internal combustion engines
WO2000017513A1 (fr) * 1998-09-24 2000-03-30 Siemens Aktiengesellschaft Soupape d'injection de carburant destinee a un moteur a combustion interne
US20020113219A1 (en) * 2001-02-14 2002-08-22 Robert Bosch Gmbh Pressure control valve
JP2002250258A (ja) * 2001-02-22 2002-09-06 Denso Corp 燃料噴射装置用定残圧弁
EP1321663A2 (fr) * 2001-12-19 2003-06-25 Robert Bosch Gmbh Dispositif d'injection de combustible pour moteur à combustion interne
US20040007683A1 (en) * 2002-07-12 2004-01-15 Betts Industries, Inc. Hydraulic actuated vapor recovery valve
WO2004056530A2 (fr) * 2002-12-20 2004-07-08 Volkswagen Mechatronic Gmbh & Co. Kg Procedes d'usinage d'une arete d'un composant resistant aux pressions elevees, notamment procedes d'arrondissage hydro-erosif d'une arete, et dispositif correspondant
DE10309456A1 (de) * 2003-03-05 2004-09-16 Mtu Aero Engines Gmbh Vorrichtung und Verfahren zur Oberflächenbearbeitung eines Werkstückes
JP2005139953A (ja) * 2003-11-05 2005-06-02 Denso Corp 燃料圧力制御弁

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 01 14 January 2003 (2003-01-14) *
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05) *

Also Published As

Publication number Publication date
DE102005026511A1 (de) 2006-12-14

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