CN102844558A - High-pressure pump - Google Patents
High-pressure pump Download PDFInfo
- Publication number
- CN102844558A CN102844558A CN2011800198106A CN201180019810A CN102844558A CN 102844558 A CN102844558 A CN 102844558A CN 2011800198106 A CN2011800198106 A CN 2011800198106A CN 201180019810 A CN201180019810 A CN 201180019810A CN 102844558 A CN102844558 A CN 102844558A
- Authority
- CN
- China
- Prior art keywords
- pump
- radius
- pressure service
- preparatory
- service pump
- 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.)
- Pending
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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
- 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
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/02—Fuel-injection apparatus having means for reducing wear
-
- 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
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
A high-pressure pump (1), which serves in particular as a radial or in-line piston pump for fuel injection systems of air-compressing, auto-ignition internal combustion engines, comprises a pump assembly (7) and a drive shaft (4). The pump assembly (7) has a cylinder bore (9) and a pump piston (8) which is guided in the cylinder bore (9). Here, the pump piston (8) delimits, in a cylinder bore (9), a pump working chamber (16). Also provided is a fuel duct (20) which opens into the pump working chamber (16). A pre-rounding (25) is formed on a mouth region (24) provided between the fuel duct (20) and the cylinder bore (9).
Description
Technical field
The present invention relates to a kind of high-pressure service pump, especially radial or in-line arrangement reciprocating pump.That the present invention is specifically related to be used for is compressed-air actuated, the petrolift field of the fuel injection apparatus of the internal-combustion engine of self ignition.
Background technique
By the known a kind of high-pressure service pump that is used for the fuel injection apparatus of internal-combustion engine of DE 10355030A1.At this, high-pressure service pump has a housing, in this housing, is provided with a live axle.Live axle rotatably is supported in housing and is rotatably driven through internal-combustion engine.At this, live axle has an axle section that constitutes prejudicially with respect to its spin axis, the transmission component of a rotatably mounted polygonal loop type on the axle section.This high-pressure service pump has a plurality of pump elements that are arranged in the housing, and these pump elements respectively have a pump piston, pump piston through the polygonal ring being done reciprocating linear motion by driving in the radial direction with respect to the spin axis of live axle.In the cylinder hole of pump piston in housing or the annex in housing is directed to sealedly movably and with it back to transmission component distolateral pump working chamber of gauge in the cylinder hole.Pump working chamber has and being connected of fuel input, for example transfer pump through a fuel input channel of in housing, extending.Be provided with one towards the open inlet valve of pump working chamber on the port in fuel input channel feeding pump working chamber, this inlet valve has one and receives spring-loaded valve cell.Pump working chamber in addition through a fuel discharge route that in housing, extends have with the outlet be connected, this outlet for example is connected with a storage.Be provided with one from the open expulsion valve of pump working chamber on the port in fuel discharge route feeding pump working chamber, this expulsion valve has one equally and receives spring-loaded valve cell.
The high-pressure service pump known by DE 10355030A1 has shortcoming, promptly is restricted in the application area aspect the very high pressure.At this, barotolerance for example is restricted in the fuel discharge route feeds the zone of the port in the pump working chamber, wherein, in this zone, possibly form the infringement to housing.
Summary of the invention
Have advantage according to the high-pressure service pump with characteristic of claim 1 of the present invention, promptly improved structural form.But can improve the machinery load in the zone of pump working chamber through the structural form of optimizing particularly, thereby this high-pressure service pump also is suitable for higher pressure.
Can be implemented in the favourable expansion scheme of the high-pressure service pump that provides in the claim 1 through the measure of listing in the dependent claims.
Advantageously, fuel channel leads to a directional control valve and can realize that the delivery stroke of said pump piston transfer the fuel passes through said directional control valve from pump working chamber.Be in operation, the pump piston driven shaft drives, and wherein, pump piston moves back and forth in the cylinder hole.During the delivery stroke of pump piston, fuel is transferred through fuel channel and directional control valve from pump working chamber.But the preparatory radius through the zone of the port between fuel channel and the cylinder hole has guaranteed high machinery load.Can improve robustness and/or the application area of expansion aspect high pressure thus.
Also advantageously, the preparatory radius that in the port zone, constitutes was implemented before sclerosis at least basically.In addition additionally or conversion ground advantageously, in the port zone, in a hardening state, constitute radius again and again.In advance radius can be for example hardening method formation through metal cutting.For example, can before sclerosis, constitute the preparatory radius in port zone through milling.This processing also can be carried out in hardening state, for example grinds (AFM) through grinding, pressure flow or excises (ECM) through electrochemistry and carry out.At this, at first make a soft-component in an advantageous manner with preparatory radius.Harden then and next can reprocess, this reprocessing comprises the rounding again to the port zone.
The preparatory radius in port zone is constituted according to ellipsoidal part surface at least in part.Particularly, the preparatory radius in port zone can be partly constitutes according to the part surface of spheroid.Ellipsoidal main axis is preferably placed on the axis of fuel channel at this.Particularly, fuel channel can be configured to through a hole.In addition, the axis preferred vertical of fuel channel is extended in the axis of pump assembly, and pump piston leads in the cylinder hole along the axis of pump assembly movingly.Make the fuel channel preferred vertical directed thus in the cylinder hole.The axis of fuel channel can meet with the axis in the cylinder hole of pump assembly at this.Obtain a kind of favourable crossing shape thus, this crossing shape can be rounded equably through preparatory radius.But obtain the force characteristic of symmetry thus and in the zone of pump working chamber, obtain the high machinery load of high-pressure service pump thus.
Advantageously, the mean radius of curvature of radius is predetermined to be the mean radius of curvature that is significantly less than said preparatory radius again.Also can realize suitable transition part thus through the radius of curvature that changes.
Description of drawings
The preferred embodiments of the present invention are set forth in according to the following explanation of accompanying drawing in detail, and corresponding in the accompanying drawings parts are provided with consistent reference character.It illustrates:
Fig. 1 illustrates the axial sectional view brief, signal according to the high-pressure service pump of first embodiment of the invention;
Fig. 2 illustrates the part that in Fig. 1, marks with II according to the high-pressure service pump of second embodiment of the invention;
Fig. 3 by the direction of observation that marks with III illustrate according to the high-pressure service pump of third embodiment of the invention in the part shown in Fig. 2.
Embodiment
Fig. 1 with brief, schematically axially sectional view illustrates a kind of high-pressure service pump 1 according to first embodiment of the invention.This high-pressure service pump 1 can especially can be constructed to radial or in-line arrangement reciprocating pump.That high-pressure service pump 1 is suitable as specially is compressed-air actuated, the petrolift of the fuel injection apparatus of the internal-combustion engine of self ignition.The preferable use of high-pressure service pump 1 is to be used to have the fuel injection apparatus that fuel distributes bar, and fuel distributes bar storage high-pressure diesel fuel.But, also be suitable for other applicable cases according to high-pressure service pump 1 of the present invention.
High-pressure service pump 1 has the pump case of a multi-part type, wherein, a cylinder cap 2 is shown partly.Cylinder cap 2 comprises an annex 3, and this annex extend in the hole of housing parts of high-pressure service pump 1.In the enclosure interior setting with support a live axle 4.This live axle 4 has a cam 5, and cam is in operation with spin axis 6 rotations of live axle 4 around live axle 4.Cam 5 also can be constructed to many cams or pass through an eccentric section formation of live axle 4.The other cam that constitutes according to cam 5 also can be set on this external live axle 4.
High-pressure service pump 1 has a pump assembly 7, and this pump assembly is configured to cam 5.Be in operation, cam 5 is with suitable manner driven pump assembly 7.For this reason, for example a work roll that is bearing in the roller seat can turn round on the working surface of cam 5.
High-pressure service pump 1 also can have other pump assembly, and they are configured to cam 5 or other cam.Look design proposal and decide, can realize radial or in-line arrangement reciprocating pump thus.
Pump assembly 7 has a pump piston 8, and it is set in the cylinder hole 9 of cylinder cap 2.Cylinder hole 9 has an axis 10.The axis 10 that the axis 10 of pump assembly 7 passes cylinder hole 9 is provided with.Pump piston 8 can be operated along axis 10.At this, the stroke through cam 5 is realized the operation to pump piston 8 carried out along direction 10.Pump piston 8 can for example be realized through tappet spring against resetting of direction 11.
If pump piston 8 is adjusted along direction 11, this is corresponding to the delivery stroke of pump piston 8 so.If pump piston 8 is adjusted against direction 11, this is corresponding to the aspiration stroke of pump piston 8 so.
One distolateral 15 pump working chamber 16 of gauge in cylinder hole 9 of pump piston 8.In this embodiment, cylinder hole 9 has a step 17 at this.Be provided with a fuel channel 18 in addition, but fuel is through in this fuel channel front pump working room 16.In fuel channel 18, be provided with an inlet valve 19 that is configured to directional control valve 19.In the aspiration stroke of pump piston 8 against direction 11, fuel is directed in the pump working chamber 16 through fuel channel 18 and inlet valve 19.Fuel channel 18 can be directed to fuel the pump working chamber 16 from preparatory transfer pump or similar device for this reason.
Be configured with a fuel channel 20 in the cylinder cap 2 of this external high-pressure service pump 1.Fuel channel 20 leads to expulsion valve 21, and this expulsion valve is configured to directional control valve 21.Can be configured in the cylinder cap 2 with suitable manner at this expulsion valve 21.Can expulsion valve 21 be integrated in the cylinder cap 2 thus.But also can expect other design proposal.
In this embodiment, radius 25 is constructed to have radius R in advance
3The part face of spheroid.In this structure of preparatory radius 25, obtain intersecting the transition seamed edge 26,27 of seamed edge 26,27 forms.Intersecting seamed edge 26 obtains with respect to cylinder hole 9 at this.Intersecting seamed edge 27 obtains with respect to fuel channel 20.On crossing seamed edge 26,27, constitute radius again.On crossing seamed edge 27, construct one at this and have radius R
1Radius again.One of structure has radius R on crossing seamed edge 26
2Radius again.The radius again of these crossing seamed edges 26,27 can just be carried out on hard component during the manufacturing of cylinder cap 2.For example can have radius R through grinding, AFM or ECM
1And R
2The structure of radius again.
Electrochemistry excision (ECM) is a kind of excision processing method, and it is in particular for deburring.Electrochemistry excision can be looked purposes and also in micrometer range, carries out surely at this.In the electrochemistry excision.Between cutter and cylinder cap 2, do not need contact.Material behavior for example hardness or toughness does not have material impact to manufacturing usually at this.For example cylinder cap 2 can be used as anode, and cutter is as negative electrode.
Grind in (AFM) and can carry out accurate rounding at pressure flow intersecting seamed edge 26,27.Also can process inaccessible position at this.Add the surface structure that is improved man-hour with the pressure flow Ginding process, especially reducing surface roughness.Can be at this with done with high accuracy deburring, rounding and polishing.The grinding abrasive particle that medium contained being used for the pressure flow grinding can adapt to corresponding use at this.
In this embodiment, the radius R on the crossing seamed edge 26,27
1, R
2In each be preset as significantly less than the radius R of radius 25 in advance
3
Fig. 2 illustrates the part of in Fig. 1, representing with II according to second embodiment's high-pressure service pump 1.In this embodiment, preparatory radius 25 is constructed to the preparatory radius 25 of approximate at least taper.Transition part on the seamed edge 26,27 at this by rounding again.At seamed edge 26 places from taper the transition part of preparatory radius 25 to the pump working chamber 16 with radius R
2Constitute.At seamed edge 27 places from taper the transition part of preparatory radius 25 to the fuel channel 20 with radius R
1Constitute.A radius 30 of radius 25 adapts to the diameter d of fuel channel 20 at this in advance
sAt this, radius 30 is preset as diameter d
sOnly about half of.A radius 31 of radius 25 is preset as greater than radius 30 in advance.Obtain 16 open tapers thus from fuel channel 20 towards pump working chamber.Therefore during the delivery stroke of pump piston 8, realize favourable mobile performance.
Fig. 3 by the direction of observation that marks with III illustrate according to the 3rd embodiment's high-pressure service pump 1 in the part shown in Fig. 2.In this embodiment, radius 25 asymmetricly constitutes in advance.Preset radius R at this
4And radius R
6Radius R
6At least be similar to diameter d with fuel channel 20
sEqually big.Radius R
4Greater than radius R
6Resulting crossing seamed edge 26,27 quilts are rounding again.
Radius 25 can be designed as ellipsoidal part face in advance.The circular cone that preparatory in addition radius 25 also can be configured to be out of shape.At this, but corresponding use and account for leading flow characteristic and/or the machinery load of cylinder cap 2 aspect in the zone in pump working chamber 16, especially port zone 24, realize favourable adaptive.
Can use for crossing seamed edge 26,27 and to have radius R
1And R
2Radius again, as according to Fig. 1 and 2.In this situation, radius R
4And R
6In each be preset as obviously greater than radius R
1And R
2In each.
Therefore in the port zone 24 of leading to expulsion valve 21 of fuel channel 20, can construct the favourable preparatory radius 25 of cost.Can for example in soft-component, process a preparatory radius 25 of machinery at this by milling cutter.Realize the optimization structure of preparatory radius 25 thus with low relatively cost.Radius that in addition can be through afterwards, promptly optimize preparatory radius 25 through rounding again.Can also not produce radius R at this
1, R
2, so that to intersecting seamed edge 26,27 roundings.
Rounding can at first carry out through grinding, AFM or ECM on hard component at this in an advantageous manner again.
Therefore can realize the favourable formation of cost of preparatory radius 25 through possible rounding again, radius also is suitable for very high pressure again.Especially have favourable adaptive for very high pressure, like it favourable during rail is used altogether.
The invention is not restricted to described embodiment.
Claims (10)
1. high-pressure service pump (1), especially radial or in-line arrangement reciprocating pump; It is used for the fuel injection apparatus of the internal-combustion engine of compressed-air actuated, self ignition; Said high-pressure service pump has at least one a pump assembly (7) and a live axle (4); Wherein, said pump assembly (7) has the pump piston (8) of a cylinder hole (9) and a guiding in cylinder hole (9), and said pump piston (8) is a pump working chamber of gauge (16) in cylinder hole (9); Wherein, Be provided with at least one fuel channel (20), said fuel channel feeds in the said pump working chamber (16), and goes up structure one preparatory radius (25) in the port zone (24) that is arranged between said fuel channel (20) and the said cylinder hole (9).
2. according to the high-pressure service pump of claim 1; It is characterized in that said fuel channel (20) leads to a directional control valve (21) and can realize that the delivery stroke of said pump piston (8) transfer the fuel passes through said directional control valve (21) from said pump working chamber (16).
3. according to the high-pressure service pump of claim 1 or 2; It is characterized in that the preparatory radius (25) of formation constituted at least basically and/or upward in a hardening state, constructs radius again and again in said port zone (24) in said port zone (24) before sclerosis.
4. according to the high-pressure service pump of one of claim 1 to 3; It is characterized in that the preparatory radius (25) in said port zone (24) is processed through grinding, AFM and/or ECM after sclerosis through the production method of at least one metal cutting, especially milling formation and/or said port zone (24) in sclerosis before.
5. according to the high-pressure service pump of one of claim 1 to 4, it is characterized in that the preparatory radius (25) in said port zone (24) is approximate at least at least in part to be constituted according to ellipsoidal part surface.
6. according to the high-pressure service pump of one of claim 1 to 5, it is characterized in that the approximate at least at least in part part surface according to spheroid of the preparatory radius (25) in said port zone (24) constitutes.
7. according to the high-pressure service pump of one of claim 1 to 6, it is characterized in that the approximate at least at least in part taper of the preparatory radius (25) in said port zone (24) ground constitutes.
8. according to the high-pressure service pump of one of claim 1 to 7, it is characterized in that, form at least one transition seamed edge (26,27) and said transition seamed edge (26,27) quilt rounding again through the preparatory radius (25) that in said port zone (24), constitutes.
9. according to Claim 8 high-pressure service pump is characterized in that, the radius again of said transition seamed edge (26,27) constitutes through AFM, ECM and/or grinding.
10. it is characterized in that, again mean radius of curvature (the R of radius according to Claim 8 or 9 high-pressure service pump,
1, R
2) be significantly less than the mean radius of curvature (R of said preparatory radius (25)
3, R
4, R
6, 30,31).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201010028046 DE102010028046A1 (en) | 2010-04-21 | 2010-04-21 | high pressure pump |
| DE102010028046.1 | 2010-04-21 | ||
| PCT/EP2011/055334 WO2011131484A1 (en) | 2010-04-21 | 2011-04-06 | High-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102844558A true CN102844558A (en) | 2012-12-26 |
Family
ID=44533547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800198106A Pending CN102844558A (en) | 2010-04-21 | 2011-04-06 | High-pressure pump |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2561212A1 (en) |
| CN (1) | CN102844558A (en) |
| DE (1) | DE102010028046A1 (en) |
| WO (1) | WO2011131484A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104981604A (en) * | 2013-02-05 | 2015-10-14 | 罗伯特·博世有限公司 | Component having high-pressure bores that lead into one another |
| CN105980696A (en) * | 2014-02-03 | 2016-09-28 | 斯托巴控股有限公司 | Fuel-injection metering device, fuel-injection nozzle, mould for producing a fuel-injection metering device and method for producing a fuel-injection metering device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016211228A1 (en) * | 2016-06-23 | 2017-12-28 | Robert Bosch Gmbh | High pressure fuel pump with a housing and method for processing channels of a housing of a high pressure fuel pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030106947A1 (en) * | 2001-12-07 | 2003-06-12 | Hermann Koch-Groeber | Injector, in particular for common rail injection systems of diesel engines |
| EP1701032A1 (en) * | 2005-03-01 | 2006-09-13 | Jtekt Corporation | Check valve for fuel pump |
| CN1873212A (en) * | 2005-06-03 | 2006-12-06 | 曼·B及W柴油机公开股份有限公司 | Jetting pump for internal-combustion engine and internal-combustion engine |
| CN1886590A (en) * | 2003-11-25 | 2006-12-27 | 罗伯特·博世有限公司 | Valve, in particular for a high-pressure pump of a fuel-injection device for an internal combustion engine |
| CN101135284A (en) * | 2006-08-29 | 2008-03-05 | 曼柴油机欧洲股份公司 | Injection pump for an internal combustion engine and internal combustion engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR981999A (en) * | 1943-05-28 | 1951-06-01 | Citroen Sa Andre | Sealing devices and their manufacturing process |
| GB2296039A (en) * | 1994-12-16 | 1996-06-19 | Perkins Ltd | Stress reduction at a high pressure fluid passage junction |
| JP3525883B2 (en) * | 1999-12-28 | 2004-05-10 | 株式会社デンソー | Fuel injection pump |
| JP3925376B2 (en) * | 2002-09-30 | 2007-06-06 | 株式会社デンソー | High pressure fuel pump |
| DE602006005169D1 (en) * | 2006-11-27 | 2009-03-26 | Delphi Tech Inc | Housing with intersecting passages |
-
2010
- 2010-04-21 DE DE201010028046 patent/DE102010028046A1/en not_active Withdrawn
-
2011
- 2011-04-06 EP EP11713254A patent/EP2561212A1/en not_active Withdrawn
- 2011-04-06 CN CN2011800198106A patent/CN102844558A/en active Pending
- 2011-04-06 WO PCT/EP2011/055334 patent/WO2011131484A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030106947A1 (en) * | 2001-12-07 | 2003-06-12 | Hermann Koch-Groeber | Injector, in particular for common rail injection systems of diesel engines |
| CN1886590A (en) * | 2003-11-25 | 2006-12-27 | 罗伯特·博世有限公司 | Valve, in particular for a high-pressure pump of a fuel-injection device for an internal combustion engine |
| EP1701032A1 (en) * | 2005-03-01 | 2006-09-13 | Jtekt Corporation | Check valve for fuel pump |
| CN1873212A (en) * | 2005-06-03 | 2006-12-06 | 曼·B及W柴油机公开股份有限公司 | Jetting pump for internal-combustion engine and internal-combustion engine |
| CN101135284A (en) * | 2006-08-29 | 2008-03-05 | 曼柴油机欧洲股份公司 | Injection pump for an internal combustion engine and internal combustion engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104981604A (en) * | 2013-02-05 | 2015-10-14 | 罗伯特·博世有限公司 | Component having high-pressure bores that lead into one another |
| CN104981604B (en) * | 2013-02-05 | 2018-04-24 | 罗伯特·博世有限公司 | Structural detail with the pressure hole to communicate with each other |
| CN105980696A (en) * | 2014-02-03 | 2016-09-28 | 斯托巴控股有限公司 | Fuel-injection metering device, fuel-injection nozzle, mould for producing a fuel-injection metering device and method for producing a fuel-injection metering device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2561212A1 (en) | 2013-02-27 |
| WO2011131484A1 (en) | 2011-10-27 |
| DE102010028046A1 (en) | 2011-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121226 |