EP2954190B1 - Bauelement mit ineinandermündenden hochdruckbohrungen - Google Patents
Bauelement mit ineinandermündenden hochdruckbohrungen Download PDFInfo
- Publication number
- EP2954190B1 EP2954190B1 EP14701997.0A EP14701997A EP2954190B1 EP 2954190 B1 EP2954190 B1 EP 2954190B1 EP 14701997 A EP14701997 A EP 14701997A EP 2954190 B1 EP2954190 B1 EP 2954190B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bore
- duct
- central bore
- section
- component according
- 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.)
- Active
Links
- 239000000446 fuel Substances 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
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
-
- 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
- F02M55/008—Arrangement of fuel passages inside of injectors
-
- 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
- F02M2200/03—Fuel-injection apparatus having means for reducing or avoiding stress, e.g. the stress caused by mechanical force, by fluid pressure or by temperature variations
-
- 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
- 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
Definitions
- the invention relates to a component according to the preamble of claim 1.
- Such a component is known, for example, as the housing of a piston pump of a fuel system. With it, the fuel is compressed to a very high pressure and pressed into a fuel high-pressure accumulator, in particular in a fuel rail ("rail") or in integrated memory of storage injectors. There the fuel is stored under very high pressure. To the fuel manifold, a plurality of injection valves are connected, which inject the fuel directly into respective, the injection valves associated combustion chambers.
- the invention is therefore based on the object to reduce the cost of the intersection on the first channel without losing the existing voltage levels in terms of advantages.
- the invention essentially provides for a component of the type mentioned that the central bore passed through the component is and consists of a first, extending over the intersection portion and an adjoining second portion, and that the at least one sub-bore extends only along the first portion and along the second portion no secondary bore is provided.
- the fact that the central bore is drilled, the number of holes to be made is reduced.
- the first portion and the second portion of the central bore, which are aligned with each other, are thus formed in a single operation.
- the cross-sectional enlargement of the first channel is realized in the region of the intersection, ie in the region of the junction of the at least one second channel, by forming at least one secondary bore along the first portion of the central bore, wherein the secondary bore does not extend through the component but instead is designed as a blind hole.
- a particularly low-tension training succeeds according to a preferred embodiment, when both sides of the central bore each having a cross section of the central bore enlarging secondary bore is formed.
- the longitudinal axes of the central bore and the two side bores are in this case in a common plane.
- the at least one secondary bore may have the same bore diameter as the central bore. Alternatively, it is also conceivable that the at least one secondary bore has a smaller bore diameter than the central bore.
- the provision of secondary bores preferably leads to the cross-sectional area of the first channel being greater than the cross-sectional area of the second channel.
- the cross-sectional area of the second channel may substantially correspond to the cross-sectional area of the central bore of the first channel.
- the bore end the at least one secondary bore is formed spherically or with a drilling cone of for example 120 ° - 150 °, in particular 140 °.
- the central bore at the end of the second section has a high pressure port with an outwardly diverging tapered sealing surface.
- the first channel is a header bore of a high-pressure piston pump, in particular a radial piston pump of a fuel injection system of an internal combustion engine.
- FIG. 1 a training of a so-called.
- Fig. 2 an inventive training in a first sectional view
- Fig. 3 the training according to Fig. 2 in a sectional view taken along the line III-III of Fig. 2 ,
- a prior art high pressure medium leading component 1 is shown, eg, a high pressure fuel pump housing of a fuel injection system of an internal combustion engine.
- the component 1 has a high-pressure connection 2, which has a conical sealing surface 3, which can interact with a corresponding mating surface of the connection pipe.
- the high pressure port 2 leads to a first channel 4, which is designed as a bore in the housing 1.
- a second channel 5 which is also designed as a bore.
- the first channel 4 is formed by a central bore and two side bores which increase the cross-section of the central bore on both sides of the central bore.
- a section 6 which extends from the high-pressure port 2 to the axis of the second channel 5
- the axes of the secondary bores extend at an acute angle to the axis of the central bore, resulting in a fan-like arrangement.
- a section 7 which adjoins directly to the section 6, the axes of the side bores are parallel to the axis of the central bore.
- the holes of the first section 6 and the Holes of the second portion 7 are drilled from opposite sides of the component 1. In the training according to Fig. 1 Thus, a total of six holes are required. This training is therefore costly and sensitive to manufacturing tolerances.
- the first channel 4 has a first section 8 and a second section 9, which adjoin one another directly.
- the first section 8 extends over the intersection of the second channel 5 with the first channel 4, so that the intersection lies completely in the first section 8.
- the first channel 4 is formed only by the central bore 10
- the first channel 4 is formed in the first section 8 through the central bore 10 and the side bores 11, as shown in particular in the cross-sectional view Fig. 3 is apparent.
- the sub-holes 11 can be machined at their end 12 by means of a ball head to obtain a corresponding curved end surface.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA88/2013A AT512893B1 (de) | 2013-02-05 | 2013-02-05 | Bauelement mit ineinandermündenden Hochdruckbohrungen |
PCT/EP2014/051675 WO2014122052A1 (de) | 2013-02-05 | 2014-01-29 | Bauelement mit ineinandermündenden hochdruckbohrungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2954190A1 EP2954190A1 (de) | 2015-12-16 |
EP2954190B1 true EP2954190B1 (de) | 2016-12-14 |
Family
ID=49919835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14701997.0A Active EP2954190B1 (de) | 2013-02-05 | 2014-01-29 | Bauelement mit ineinandermündenden hochdruckbohrungen |
Country Status (7)
Country | Link |
---|---|
US (1) | US9677521B2 (zh) |
EP (1) | EP2954190B1 (zh) |
JP (1) | JP6069525B2 (zh) |
KR (1) | KR102062613B1 (zh) |
CN (1) | CN104981604B (zh) |
AT (1) | AT512893B1 (zh) |
WO (1) | WO2014122052A1 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201516152D0 (en) * | 2015-09-11 | 2015-10-28 | Delphi Int Operations Lux Srl | Fuel pump housing |
DE102016211228A1 (de) * | 2016-06-23 | 2017-12-28 | Robert Bosch Gmbh | Hochdruck-Kraftstoffpumpe mit einem Gehäuse und Verfahren zum Bearbeiten von Kanälen eines Gehäuses einer Hochdruck-Kraftstoffpumpe |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2768840A (en) * | 1946-07-01 | 1956-10-30 | Kobe Inc | Tubing system for fluid operated pumps |
GB8914478D0 (en) | 1989-06-23 | 1989-08-09 | Lucas Ind Plc | Fuel injection nozzle |
EP0982493B1 (de) | 1998-08-27 | 2003-09-24 | Wärtsilä Schweiz AG | Verfahren zum Herstellen einer Brennstoffeinspritzdüse und Brennstoffeinspritzdüse |
DE19925380A1 (de) | 1999-06-02 | 2000-12-07 | Volkswagen Ag | Kraftstoffeinspritzventil für Brennkraftmaschinen |
DE10152230A1 (de) | 2001-10-20 | 2003-04-30 | Bosch Gmbh Robert | Hochdruckfester Injektorkörper |
JP4119812B2 (ja) * | 2003-09-19 | 2008-07-16 | ボッシュ株式会社 | 燃料噴射弁 |
DE102004018937A1 (de) | 2004-04-20 | 2005-11-17 | Robert Bosch Gmbh | Brennstoffeinspritzventil und Verfahren zu dessen Herstellung |
GB0602742D0 (en) * | 2005-06-06 | 2006-03-22 | Delphi Tech Inc | Machining method |
ATE422615T1 (de) * | 2006-11-27 | 2009-02-15 | Delphi Tech Inc | Gehäuse mit sich überschneidenden durchgängen |
JP4404124B2 (ja) * | 2007-09-11 | 2010-01-27 | 株式会社デンソー | ポンプ |
WO2009111896A2 (de) * | 2008-03-13 | 2009-09-17 | Ganser-Hydromag Ag | Hochdruckförderpumpe mit einem zylinderkopf, insbesondere für einspritzsysteme für verbrennungsmotoren |
DE102008040383A1 (de) | 2008-07-14 | 2010-01-21 | Robert Bosch Gmbh | Hochdruckfester Kraftstoffinjektor |
EP2320084B1 (en) * | 2009-11-06 | 2012-09-12 | Delphi Technologies Holding S.à.r.l. | Housing with intersecting passages for high pressure fluid applications |
AT509177B1 (de) * | 2009-11-23 | 2013-09-15 | Bosch Gmbh Robert | Druckrohrstutzen für common-rail-einspritzsystem |
DE102010028046A1 (de) * | 2010-04-21 | 2011-10-27 | Robert Bosch Gmbh | Hochdruckpumpe |
EP2678622B1 (en) * | 2011-02-23 | 2020-11-25 | Carrier Corporation | Ejector and method for operating a system with a such ejector |
-
2013
- 2013-02-05 AT ATA88/2013A patent/AT512893B1/de active
-
2014
- 2014-01-29 CN CN201480007477.0A patent/CN104981604B/zh active Active
- 2014-01-29 KR KR1020157020918A patent/KR102062613B1/ko active IP Right Grant
- 2014-01-29 EP EP14701997.0A patent/EP2954190B1/de active Active
- 2014-01-29 US US14/765,687 patent/US9677521B2/en active Active
- 2014-01-29 WO PCT/EP2014/051675 patent/WO2014122052A1/de active Application Filing
- 2014-01-29 JP JP2015555684A patent/JP6069525B2/ja active Active
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
KR20150112993A (ko) | 2015-10-07 |
AT512893A4 (de) | 2013-12-15 |
US20150369191A1 (en) | 2015-12-24 |
WO2014122052A1 (de) | 2014-08-14 |
JP2016505118A (ja) | 2016-02-18 |
CN104981604A (zh) | 2015-10-14 |
KR102062613B1 (ko) | 2020-01-06 |
EP2954190A1 (de) | 2015-12-16 |
US9677521B2 (en) | 2017-06-13 |
CN104981604B (zh) | 2018-04-24 |
AT512893B1 (de) | 2013-12-15 |
JP6069525B2 (ja) | 2017-02-01 |
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