CN102939456A - High-pressure pump - Google Patents
High-pressure pump Download PDFInfo
- Publication number
- CN102939456A CN102939456A CN2011800290047A CN201180029004A CN102939456A CN 102939456 A CN102939456 A CN 102939456A CN 2011800290047 A CN2011800290047 A CN 2011800290047A CN 201180029004 A CN201180029004 A CN 201180029004A CN 102939456 A CN102939456 A CN 102939456A
- Authority
- CN
- China
- Prior art keywords
- roller
- rolling surface
- descending branch
- pump
- cam
- 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
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Classifications
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- 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
- F02M59/10—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 characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
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- 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
- F02M59/04—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 characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps
- F02M59/06—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 characterised by special arrangement of cylinders with respect to piston-driving shaft, e.g. arranged parallel to that shaft or swash-plate type pumps with cylinders arranged radially to driving shaft, e.g. in V or star arrangement
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- 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
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- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0413—Cams
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- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0439—Supporting or guiding means for the pistons
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- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
- F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
- F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to a high-pressure pump (1), which is used in particular as a radial or in-line piston pump for fuel injection systems of air-compressing, auto-igniting internal combustion engines, comprising a pump assembly (5) and a drive shaft (6), which comprises a cam (7) associated with the pump assembly (15). The pump assembly (15) has a roller shoe (30) and a roller (31) mounted in the roller shoe (30). The roller (31) rolls on a running face (34) of the cam (7). To this end, the cam (7) has eased areas (40, 41) on the running face (34) thereof. The eased areas (40, 41) ensure advantageous guidance of the roller (31) on the running face (34). The eased areas (40, 41) are needed in order to avoid edge loading. The fact that the eased areas are located on the camshaft and not on the roller (31) means that the hydrodynamics between the roller (31) and the roller shoe (30) can be perfected.
Description
Technical field
The present invention relates to high-pressure service pump, especially radially or inline plunger pump.The invention particularly relates to the field for the petrolift of the fuel injection system of pressurized air, self ignition formula internal-combustion engine.
Background technique
By DE10 2,005 046 670 A1 known a kind of high-pressure service pump of the fuel injection system for internal-combustion engine.This known high-pressure service pump has a pump case, is provided with therein pump parts, and these pump parts comprise a pump piston that is become elevating movement by drive shaft.Pump piston is directed to movably and defines in this hole a pump working chamber in the cylindrical hole of the part of pump case.Pump piston is supported on live axle by the push rod of a cylinder side face shape indirectly, and wherein, push rod is directed to movably in a hole of the part of pump case on the direction of pump piston longitudinal shaft.The longitudinal axis of push rod is substantially the same with the longitudinal axis of pump piston.Install a supporting element at it in the end regions of live axle in push rod, a roller is rotatably supported in this supporting element.This roller can roll on the cam of live axle.The spin axis of roller is parallel to the spin axis of live axle at least approx.Supporting element has recessed portion, a support roll therein at it on a side of live axle.
Have its shortcoming by the known high-pressure service pump of DE 10 2,005 046 670 A1, roller closely is directed in push rod, so that obtains the disadvantageous roadability of roller and produce frictional force and wearing and tearing.
In order to improve the roadability of roller, can expect: allow roller certain mobility to be arranged and can select in addition one and columniform variform roller configuration along its spin axis.Can avoid thus the roller arris to roll under load on the roller boots or on the cam of live axle.But also obtain thus a shortcoming, due to and columniform variform roller configuration make friction between roller and roller boots increase because because gap larger between roller and roller boots makes the flow dynamic characteristic variation.Make thus the more difficult smoothness of rolling of roller, this also can cause the damage of driving mechanism under a stable condition.
Summary of the invention
High-pressure service pump with feature of claim 1 according to the present invention has its advantage, and the rolling characteristic of roller on the rolling surface of cam improves.Especially can improve in the fluid dynamic between roller and roller boots and realize the favourable rolling characteristic on the rolling surface of roller at cam simultaneously.
The favourable further configuration of the high-pressure service pump that can obtain providing in claim 1 by the measure described in dependent claims.
Advantageously, descending branch and the roller of rolling surface are so constituted, and make at one of roller in the home position in fixed between the end section of roller and rolling surface and form a gap.In the case also advantageously: rolling surface is constructed to protruding arch in the zone of descending branch.In addition advantageously, the descending branch of rolling surface is so constructed, so that departs from the position in fixed between the end section of roller and rolling surface and also form a gap at roller.Opposed roller boots or the relative like of support roll therein can guarantee a constant little gap thus.Thus by the descending branch on camshaft can make roller on its track by fixed.When between the cam at roller and live axle during the angle of arrival error roller by the roller that is produced the extruding force that forms by pressure and cause, around the bending of cam, by descending branch, lead.By descending branch, the inclination startup of cam opposed roller is played to reaction thus.Especially can prevent thus or at least avoid the side of roller to slide.
Favourable in the case also is: roller depart from the position in fixed the gap formed between the end section of roller and rolling surface be constructed at least approx with home position in fixed in the gap formed objects, move departing from the home position of position central roll in fixed in the fixed direction towards the descending branch of rolling surface.All the time apply thus a reposition force on roller when having a given angular error between roller boots and cam.Favourable in the case also is: the descending branch of rolling surface is constructed to until an end face of cam.
In addition advantageously, rolling surface has the rolling band of a centre, that the rolling band of this centre is constructed at least to be similar to cylinder side face shape and descending branch and middle rolling band adjacency.Realized thus a favourable roadability between roller and cam in the home position of center.In addition advantageously, be provided with roller boots, the boots of support roll, and roller therein can be realized roller certain mobility vertical with the rotating direction of roller on rolling surface.Here roller preferably is constructed to columniform roller basically.Even also can guarantee thus a constant little gap between roller boots and roller when roller and rotating direction vertically move.Also obtain thus the fluid dynamic of an improvement between roller and roller boots.Therefore always obtain a favourable roadability of roller.
Favourable also is, cam has other descending branch on its rolling surface, and the home position in descending branch and other descending branch opposed roller fixed forms symmetrically.Here favourablely also be, descending branch and other descending branch are so constituted, and make roller import in the home position in fixed.Therefore by the descending branch on cam, roller is fixed on its track.Therefore the inclination of cam opposed roller started to the generation reaction.Prevent on both sides thus or at least avoided the side of sliding roller to slide.
The accompanying drawing explanation
To carry out the preferred embodiment of the present invention will be described in detail by accompanying drawing in the following description, in accompanying drawing, corresponding parts are provided with consistent label.Accompanying drawing means:
Fig. 1: the high-pressure service pump according to an embodiment of the invention meaned with the axial sectional view of summary, and
Fig. 2: the section figure of this embodiment's of the present invention who indicates with II in Fig. 1 high-pressure service pump.
Embodiment
Fig. 1 means high-pressure service pump 1 according to an embodiment of the invention with the axial sectional view of summary.This high-pressure service pump 1 especially can be constructed to radial pump or inline plunger pump.That this high-pressure service pump 1 especially is suitable as is compressed-air actuated, the petrolift of the fuel injection system of self ignition formula internal-combustion engine.An advantageous applications of this high-pressure service pump 1 is to distribute bar, a so-called fuel injection system of rail altogether, the diesel fuel of this common rail storage under high pressure for being provided with fuel.But high-pressure service pump 1 according to the present invention also is applicable to other application.
High-pressure service pump 1 has a manifold pump case 2.Here this pump case 2 comprises a housing parts 3 and a flange 4 be connected with housing parts 3.Be provided with in addition a cylinder head 5, it is connected with housing parts 3.
Be provided with a live axle 6 in pump case 2.Live axle 6 comprises a cam 7.Cam 7 also can be constructed to multiple cam.This external cam 7 also can be constructed to the eccentric section of live axle 6.Be configured with a bearing part 8 in housing parts 3.Also be provided with an other bearing part 9 on this external flange 4.Live axle 6 is bearing on bearing part 8,9.
In the work of high-pressure service pump 1, live axle 6 is around its spin axis 10 rotations.Bearing part 8,9 relative rotation axi lines 10 are spaced from each other and are arranged on the not homonymy of cam 7.
High-pressure service pump 1 has a pump assembly 15.High-pressure service pump 1 also can have a plurality of pump assemblies.Pump assembly 15 can drive by the cam 7 of live axle 6.As long as high-pressure service pump 1 has other pump assembly, these pump assemblies can be driven by cam 7 together with pump assembly 15.Can also be, be provided with at least one other cam on live axle 6, this cam corresponding to cam 7 for driving at least one pump assembly.Can realize thus one radially or inline plunger pump depending on configuration.
The housing parts 3 of pump case 2 has a hole 16.Be configured with a projection 17 on cylinder head 5, this projection extend in the hole 16 of housing parts 3.Pump assembly 15 is arranged in the zone in projection 17 and hole 16.Projection 17 has 18, one, cylinder hole pump piston 19 and leads in this cylinder hole for this reason.Here pump piston 19 defines a pump working chamber 20 here in cylinder hole 18.Fuel can arrive in pump working chamber 20 by entering valve 21.Be provided with in addition an expulsion valve 22, fuel can be transported in a connecting tube 23 by pump working chamber 20 by this expulsion valve.This connecting tube 23 for example leads to a rail altogether.
When live axle 6, when its spin axis 10 rotates, roller 31 rolls along rolling surface 34, so that carries out the operation of the pump piston 19 of pump assembly 15 according to the cam stroke of cam 7.Fuel alternately is inhaled into pump working chamber 20 and then under high pressure carries by connecting tube 23 thus.
The configuration of high-pressure service pump 1 is below also described with reference to Fig. 2 in further detail.
The section figure of this embodiment's who indicates with II in Fig. 2 presentation graphs 1 high-pressure service pump 1 expresses cam 7 with wherein expressing roller boots 30, roller 31 and section.Cam 7 has a descending branch 40 and an other descending branch 41 on its rolling surface 34.Here descending branch 40 extends to end face 32 always.This other descending branch 41 extends to other end face 33 always.In the middle of descending branch 40,41 and rolling surface 34, roll in addition with 36 both sides adjacency.Therefore, the middle rolling is with 36 and two descending brancies 40,41 to extend in together on the whole rolling surface 34 of cam 7 in this embodiment.
Descending branch 40,41 is constructed to the descending branch 40,41 of protruding arch.Form relatively at least approx columniform roller 31, by descending branch 40,41, between roller 31 and rolling surface 34, formed little gap 42,43.Here gap 42,43 relates to end section 44 and another end section 45 of roller 31.Roll and be with on 36 in the middle of 46 of the intermediate sections of roller 31 abut against.
Therefore in the home position in the roller 31 shown in Fig. 1 and 2 fixed, can guarantee roller 31 in the middle of rolling surface 34, roll with 36 on favourable rolling.
Can cause 47 angular error with an angle in the work of high-pressure service pump 1.When angular error occurs, just obtaining one between roller boots 30 are together with roller 31 and cam 7 or axis 24 is not inappreciable angle 47.Also can need such gap for the reliably working of high-pressure service pump 1.
Can guarantee that by cam 7 configurations with descending branch 40,41 this system reset is in home position.When angular error, effect has a reposition force towards home position in the case.The roller 31 that roller 31 causes by the extruding force formed by the pressure generation when being not inappreciable angle 47 for one leads by descending branch 40,41 around the bending of cam 7.Therefore when starting obliquely, cam opposed roller 31 also also on roller boots 30, applies thus a reposition force on roller 31 by descending branch 40,41.Thus the inclination startup of cam opposed roller 31 is played to reaction.Slide and also play reaction depending on the possible side of this pair roller 31 of configuration of high-pressure service pump 1.
Because guaranteed the favourable guiding of roller 31 in roller boots 30 in this configuration, so combine and just obtain roller 31 optimum operation characteristic at work with roller 31 favourable guiding on rolling surface 34.
From the configuration that can imagine, configuration that wherein descending branch is located on roller 31 is different, avoided the gap between roller boots 30 and roller 31.Therefore kept the fluid dynamic between roller boots 30 and roller 30 in this embodiment's configuration.Avoid from the beginning sliding roller 31 not smooth, so that also prevented damage or the similar situation of driving mechanism.Also avoided in the case the edge support of opposed roller boots 30 or relative cam 7 under loading.
In order to exempt the edge support, descending branch 40,41st, essential.By making descending branch be positioned on camshaft rather than being positioned on roller 31, the fluid dynamic between roller 31 and roller boots 30 can be very perfect.
The present invention is not confined on the above embodiments.
Claims (according to the modification of the 19th of treaty)
1. high-pressure service pump (1), in particular for pressurized air, the fuel injection system of self ignition formula internal-combustion engine radially or inline plunger pump, there is at least one pump assembly (15) and a live axle (6), this live axle has the cam (7) of at least one configuration to this pump assembly (15), wherein, this pump assembly (15) has the upper roller (31) rolled of a rolling surface in cam (7) (34), it is characterized in that: this cam (7) has at least one descending branch (40) on its rolling surface (34), make at one of roller (31) in the home position in fixed a formation gap (42) between the end section (44) of roller (31) and rolling surface (34), thereby apply a reposition force while starting obliquely by descending branch (40) when cam opposed roller (31) on roller (31).
2. according to the high-pressure service pump of claim 1, it is characterized in that: this rolling surface (34) is constructed to protruding arch in the zone of descending branch (40).
3. according to the high-pressure service pump of claim 1 or 2, it is characterized in that: the descending branch (40) of this rolling surface (34) is so constructed, and makes at roller (31) and departs from the position in fixed between the end section (44) of roller (31) and rolling surface (34) and also form a gap (42).
4. according to the high-pressure service pump of claim 3, it is characterized in that: roller (31) depart from the position in fixed the gap (42) formed between the end section (44) of roller (31) and rolling surface (34) be constructed at least approx with home position in fixed in the gap formed objects, move departing from the home position of position central roll (31) in determining in the fixed direction towards the descending branch (40) of rolling surface (34).
5. according to the high-pressure service pump of in claim 1 to 4, it is characterized in that: the descending branch (40) of this rolling surface (34) is constructed to until the end face (32) of cam (7).
6. according to the high-pressure service pump of in claim 1 to 5, it is characterized in that: this rolling surface (34) has the rolling band (36) of a centre, that this rolling band is constructed at least to be similar to cylinder side face shape and descending branch (40) and middle rolling band (36) adjacency.
7. according to the high-pressure service pump of in claim 1 to 6, it is characterized in that: be provided with roller boots (30), roller (31) is bearing in these roller boots, and these roller boots (30) can realize that roller (31) is in the upper mobility vertical with the rotating direction (35) of roller (31) of rolling surface (34).
8. according to the high-pressure service pump of in claim 1 to 7, it is characterized in that: cam (7) has an other descending branch (41) and descending branch (40) and other descending branch (41) and forms symmetrically about the home position in roller (31) fixed on its rolling surface (34).
9. high-pressure service pump according to Claim 8, it is characterized in that: descending branch (40) and other descending branch (41) are so constituted, and make roller (31) be directed in the home position in fixed.
Claims (10)
1. high-pressure service pump (1), in particular for the fuel injection system of pressurized air, self ignition formula internal-combustion engine radially or inline plunger pump, there is at least one pump assembly (15) and a live axle (6), this live axle has the cam (7) of at least one configuration to this pump assembly (15), wherein, this pump assembly (15) has the upper roller (31) rolled of a rolling surface in cam (7) (34), and it is characterized in that: this cam (7) has at least one descending branch (40) on its rolling surface (34).
2. according to the high-pressure service pump of claim 1, it is characterized in that: descending branch (40) and the roller (31) of this rolling surface (34) are so constituted, and make at one of roller (31) in the home position in fixed a formation gap (42) between the end section (44) of roller (31) and rolling surface (34).
3. according to the high-pressure service pump of claim 2, it is characterized in that: this rolling surface (34) is constructed to protruding arch in the zone of descending branch (40).
4. according to the high-pressure service pump of claim 2 or 3, it is characterized in that: the descending branch (40) of this rolling surface (34) is so constructed, and makes at roller (31) and departs from the position in fixed between the end section (44) of roller (31) and rolling surface (34) and also form a gap (42).
5. according to the high-pressure service pump of claim 4, it is characterized in that: roller (31) depart from the position in fixed the gap (42) formed between the end section (44) of roller (31) and rolling surface (34) be constructed at least approx with home position in fixed in the gap formed objects, move departing from the home position of position central roll (31) in determining in the fixed direction towards the descending branch (40) of rolling surface (34).
6. according to the high-pressure service pump of in claim 1 to 5, it is characterized in that: the descending branch (40) of this rolling surface (34) is constructed to until the end face (32) of cam (7).
7. according to the high-pressure service pump of in claim 1 to 6, it is characterized in that: this rolling surface (34) has the rolling band (36) of a centre, that this rolling band is constructed at least to be similar to cylinder side face shape and descending branch (40) and middle rolling band (36) adjacency.
8. according to the high-pressure service pump of in claim 1 to 7, it is characterized in that: be provided with roller boots (30), roller (31) is bearing in these roller boots, and these roller boots (30) can realize that roller (31) is in the upper mobility vertical with the rotating direction (35) of roller (31) of rolling surface (34).
9. according to the high-pressure service pump of in claim 1 to 8, it is characterized in that: cam (7) has an other descending branch (41) and descending branch (40) and other descending branch (41) and forms symmetrically about the home position in roller (31) fixed on its rolling surface (34).
10. according to the high-pressure service pump of claim 9, it is characterized in that: descending branch (40) and other descending branch (41) are so constituted, and make roller (31) be directed in the home position in determining.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010027792.4 | 2010-04-15 | ||
| DE102010027792A DE102010027792A1 (en) | 2010-04-15 | 2010-04-15 | high pressure pump |
| PCT/EP2011/053108 WO2011128151A1 (en) | 2010-04-15 | 2011-03-02 | High-pressure pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102939456A true CN102939456A (en) | 2013-02-20 |
| CN102939456B CN102939456B (en) | 2015-04-08 |
Family
ID=44041758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180029004.7A Active CN102939456B (en) | 2010-04-15 | 2011-03-02 | High-pressure pump |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2558707B1 (en) |
| JP (1) | JP5395308B2 (en) |
| CN (1) | CN102939456B (en) |
| DE (1) | DE102010027792A1 (en) |
| WO (1) | WO2011128151A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358819A (en) * | 2013-06-25 | 2016-02-24 | 罗伯特·博世有限公司 | Pumping device, in particular high pressure fuel pumping device for a fuel injection device |
| US20230167794A1 (en) * | 2020-08-14 | 2023-06-01 | Cummins Inc. | Sliding cam follower |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9835123B2 (en) * | 2015-01-13 | 2017-12-05 | Roller Bearing Company Of America, Inc. | Roller for a fuel pump actuator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB536181A (en) * | 1939-02-08 | 1941-05-06 | Sulzer Ag | Improvements in or relating to cam mechanisms |
| CN1460154A (en) * | 2001-04-06 | 2003-12-03 | 罗伯特·博施有限公司 | Single-plunger injection pump for pressure accumulating tube-fuel injection system |
| CN1840900A (en) * | 2005-03-28 | 2006-10-04 | 颜志江 | Pump body of high-pressure cleaning machine |
| CN1894504A (en) * | 2003-12-20 | 2007-01-10 | Itw有限公司 | Pump |
| DE102005046670A1 (en) * | 2005-09-29 | 2007-04-05 | Robert Bosch Gmbh | High pressure pump for fuel injection device of internal combustion engine, has ball indirectly fixed in part of base plate in tangential direction to tappet and engaged in groove approximately radial to longitudinal axis of tappet |
| DE102008040081A1 (en) * | 2008-07-02 | 2010-01-07 | Robert Bosch Gmbh | high pressure pump |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05332222A (en) * | 1992-05-27 | 1993-12-14 | Nippondenso Co Ltd | Fuel injection pump |
| JPH0821329A (en) * | 1994-07-08 | 1996-01-23 | Toyota Motor Corp | Fuel injection pump |
| JP3867758B2 (en) * | 1999-06-22 | 2007-01-10 | 株式会社デンソー | High pressure supply pump |
| US6722864B2 (en) * | 2001-12-12 | 2004-04-20 | Denso Corporation | Fuel injection pump |
| DE102006045933A1 (en) * | 2006-09-28 | 2008-04-03 | Robert Bosch Gmbh | Plunger assembly for a high pressure pump and high pressure pump with at least one plunger assembly |
| DE102006051332A1 (en) * | 2006-10-31 | 2008-05-08 | Robert Bosch Gmbh | Feed pump, in particular for the promotion of diesel fuel with improved storage of the drive shaft |
| JP2009281289A (en) * | 2008-05-22 | 2009-12-03 | Toyota Motor Corp | Fuel pump for internal combustion engine |
-
2010
- 2010-04-15 DE DE102010027792A patent/DE102010027792A1/en not_active Withdrawn
-
2011
- 2011-03-02 CN CN201180029004.7A patent/CN102939456B/en active Active
- 2011-03-02 WO PCT/EP2011/053108 patent/WO2011128151A1/en active Application Filing
- 2011-03-02 EP EP11709037.3A patent/EP2558707B1/en not_active Not-in-force
- 2011-03-02 JP JP2013504183A patent/JP5395308B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB536181A (en) * | 1939-02-08 | 1941-05-06 | Sulzer Ag | Improvements in or relating to cam mechanisms |
| CN1460154A (en) * | 2001-04-06 | 2003-12-03 | 罗伯特·博施有限公司 | Single-plunger injection pump for pressure accumulating tube-fuel injection system |
| CN1894504A (en) * | 2003-12-20 | 2007-01-10 | Itw有限公司 | Pump |
| CN1840900A (en) * | 2005-03-28 | 2006-10-04 | 颜志江 | Pump body of high-pressure cleaning machine |
| DE102005046670A1 (en) * | 2005-09-29 | 2007-04-05 | Robert Bosch Gmbh | High pressure pump for fuel injection device of internal combustion engine, has ball indirectly fixed in part of base plate in tangential direction to tappet and engaged in groove approximately radial to longitudinal axis of tappet |
| DE102008040081A1 (en) * | 2008-07-02 | 2010-01-07 | Robert Bosch Gmbh | high pressure pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358819A (en) * | 2013-06-25 | 2016-02-24 | 罗伯特·博世有限公司 | Pumping device, in particular high pressure fuel pumping device for a fuel injection device |
| CN105358819B (en) * | 2013-06-25 | 2019-01-01 | 罗伯特·博世有限公司 | Pump installation, the fuel high pressure pump installation particularly for fuel injection device |
| US20230167794A1 (en) * | 2020-08-14 | 2023-06-01 | Cummins Inc. | Sliding cam follower |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5395308B2 (en) | 2014-01-22 |
| WO2011128151A1 (en) | 2011-10-20 |
| CN102939456B (en) | 2015-04-08 |
| JP2013524095A (en) | 2013-06-17 |
| DE102010027792A1 (en) | 2011-10-20 |
| EP2558707A1 (en) | 2013-02-20 |
| EP2558707B1 (en) | 2018-05-16 |
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