EP0730091A2 - Soupape d'injection de combustible pour un moteur à combustion interne - Google Patents

Soupape d'injection de combustible pour un moteur à combustion interne Download PDF

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Publication number
EP0730091A2
EP0730091A2 EP95117473A EP95117473A EP0730091A2 EP 0730091 A2 EP0730091 A2 EP 0730091A2 EP 95117473 A EP95117473 A EP 95117473A EP 95117473 A EP95117473 A EP 95117473A EP 0730091 A2 EP0730091 A2 EP 0730091A2
Authority
EP
European Patent Office
Prior art keywords
fuel
fuel injection
jet
plate
valve
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
EP95117473A
Other languages
German (de)
English (en)
Other versions
EP0730091B1 (fr
EP0730091A3 (fr
Inventor
Michael Klaski
Georg Harter
Harald Walter
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 EP0730091A2 publication Critical patent/EP0730091A2/fr
Publication of EP0730091A3 publication Critical patent/EP0730091A3/xx
Application granted granted Critical
Publication of EP0730091B1 publication Critical patent/EP0730091B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/188—Spherical or partly spherical shaped valve member ends
    • 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
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1853—Orifice plates
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/04—Injectors peculiar thereto

Definitions

  • FIG. 1 shows a section through a partially shown, according to the invention formed fuel injector
  • Figure 2 is a plan view of a baffle plate according to a first embodiment of the invention
  • Figure 3 is a side view of a section along a line III-III in Figure 2
  • Figure 4 is a section along a line IV-IV in Figure 3
  • Figure 5 is a plan view of the Baffle plate according to a second embodiment of the invention
  • Figure 6 is a side view of a section along the line VI-VI in Figure 5
  • Figure 7 is a plan view of the baffle plate according to a third embodiment of the invention
  • Figure 8 is a plan view of the baffle plate according to a fourth embodiment of the invention
  • Figure 9 is a Side view of a section along a line IX-IX in Figure 8
  • Figure 10 is a plan view of the baffle plate according to a fifth embodiment of the invention
  • Figure 11 is a plan view of the baffle plate according to a sixth embodiment of
  • the line beam 15 impinging on the deflection surface 21 leaves the line beam essentially parallel to the deflection surface 21 of the deflection plate 22 in the direction of a longitudinal axis 25 of the plate symmetrically dividing the deflection surface 21
  • recesses 26, 27 are provided which, as shown in FIGS. 2 to 4, are excluded from the deflection surface 21 of the deflection plate 22.
  • the shape of the depressions 26, 27 can influence the shape of the fuel jet 14 leaving the baffle plate 22 in such a way that, for example, single-jet or multi-jet fuel jets 14 are formed which leave the baffle plate 22 with fuel jet shapes which can be predetermined by the depressions 26, 27.
  • the collecting recess 26 is connected to two further recesses 27, which are referred to below as drain recesses 27.
  • the drain recesses 27 are exempted from the deflection surface 21 in the form of channels which extend apart from the catch recess 26 to the free plate end 32.
  • the free plate end 32 has a pointed end 40, which is formed, for example, by two tapering plate side surfaces 34 and which lies, for example, on the plate longitudinal axis 25. It is pointed out that the invention is not restricted to a pointed plate end 32. Rather, this can take a wide variety of forms, with the design of the plate end 32 making it possible to implement a wide variety of fuel jet shapes.
  • a pointed plate end 32 is particularly suitable for two-jet fuel jets. However, it is also possible to design the free plate end 32 as blunt, for example with a plate end 32 running perpendicular to the longitudinal valve axis 16, for example in order to generate a single-jet fuel jet.
  • FIG. 5 shows a top view of the deflection plate 22 according to a second exemplary embodiment according to the invention, in which all the same or equivalent parts are identified by the same reference numerals of the first exemplary embodiment according to FIGS. 1 to 4.
  • the cord jet 15 striking the deflection plate 22 is divided into two individual fuel jets 14.
  • the deflection plate 22 does not have a collecting recess 26 for this purpose, but only two drain recesses 27, which open into one another in the area of impact of the fuel jet 14 and diverge in the direction of the free plate end 32, in the form of legs of a triangle.
  • FIG. 6 a side view of a section along a line VI-VI in FIG.
  • FIG. 7 shows a top view of a third exemplary embodiment of the deflection plate 22 according to the invention, in which all the same or equivalent parts are identified by the same reference numerals from the previous exemplary embodiments according to FIGS. 1 to 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP95117473A 1995-01-31 1995-11-07 Soupape d'injection de combustible pour un moteur à combustion interne Expired - Lifetime EP0730091B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19502915A DE19502915A1 (de) 1995-01-31 1995-01-31 Brennstoffeinspritzventil für eine Brennkraftmaschine
DE19502915 1995-01-31

Publications (3)

Publication Number Publication Date
EP0730091A2 true EP0730091A2 (fr) 1996-09-04
EP0730091A3 EP0730091A3 (fr) 1996-10-02
EP0730091B1 EP0730091B1 (fr) 2000-02-09

Family

ID=7752690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95117473A Expired - Lifetime EP0730091B1 (fr) 1995-01-31 1995-11-07 Soupape d'injection de combustible pour un moteur à combustion interne

Country Status (5)

Country Link
US (1) US5725158A (fr)
EP (1) EP0730091B1 (fr)
JP (1) JPH08232815A (fr)
CN (1) CN1066803C (fr)
DE (2) DE19502915A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4081245B2 (ja) * 2001-04-13 2008-04-23 株式会社共立 燃料噴射装置及びそれを備えた混合気生成装置
JP5174644B2 (ja) * 2008-12-08 2013-04-03 三菱電機株式会社 燃料噴射弁
US8622046B2 (en) 2010-06-25 2014-01-07 Caterpillar Inc. Fuel system having accumulators and flow limiters
DE102012208087B4 (de) * 2012-05-15 2024-03-14 Man Energy Solutions Se Kraftstoffeinspritzdüse
US10920726B2 (en) * 2015-07-13 2021-02-16 Xcentrick Innovations, Ltd. Multi-function fuel injector for internal combustion engines and method
SG11202012641UA (en) 2018-06-20 2021-01-28 Saban Ventures Pty Ltd Clamp for a medical device
US11073071B2 (en) * 2019-07-23 2021-07-27 Ford Global Technologies, Llc Fuel injector with divided flowpath nozzle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716402A1 (de) 1986-05-16 1987-11-19 Lucas Ind Plc Kraftstoffeinspritzduese

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR608840A (fr) * 1925-12-31 1926-08-03 Gicleur à aiguille pour moteurs à combustion interne
US4657189A (en) * 1985-03-13 1987-04-14 Aisan Kogyo Kabushiki Kaisha Electromagnetic fuel injection valve for an internal combustion engine having a plurality of intake valves
JPH025753A (ja) * 1988-06-23 1990-01-10 Aisan Ind Co Ltd 燃料噴射弁とそのノズル

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3716402A1 (de) 1986-05-16 1987-11-19 Lucas Ind Plc Kraftstoffeinspritzduese

Also Published As

Publication number Publication date
CN1136134A (zh) 1996-11-20
US5725158A (en) 1998-03-10
CN1066803C (zh) 2001-06-06
DE19502915A1 (de) 1996-08-01
EP0730091B1 (fr) 2000-02-09
DE59507788D1 (de) 2000-03-16
JPH08232815A (ja) 1996-09-10
EP0730091A3 (fr) 1996-10-02

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