CN108350845A - The high-pressure pump of pump, especially fuel injection system - Google Patents
The high-pressure pump of pump, especially fuel injection system Download PDFInfo
- Publication number
- CN108350845A CN108350845A CN201680065970.7A CN201680065970A CN108350845A CN 108350845 A CN108350845 A CN 108350845A CN 201680065970 A CN201680065970 A CN 201680065970A CN 108350845 A CN108350845 A CN 108350845A
- Authority
- CN
- China
- Prior art keywords
- pump
- spring holder
- lifter body
- pump piston
- pumping
- 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
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
- 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
-
- 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
-
- 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
- F04B1/0426—Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam
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 present invention relates to a kind of pumps (1),The especially high-pressure pump of fuel injection system,Pump has pumping cylinder head (5),Pumping cylinder head has pumping cylinder (4) and cylinder holes (11),Pump the pump piston (13) for having and being arranged in cylinder holes (11),Pump piston can translationally move up and down and by tappet assembly (9) and driving unit collective effect,Wherein,Pump piston (13) connect with spring holder (17) and sticks on tappet assembly (9),Wherein,Sealing element (15) is arranged between pump piston (13) and pumping cylinder head (5),Tappet spring (19) is supported on by spring holder (17) in the lifter body (21) of tappet assembly (9),It proposes,Spring holder (17) is maintained in lifter body (21) and pump piston (13) come force closure is maintained at by the preload clamping force of sealing element (15) in pumping cylinder head (5).
Description
Technical field
The present invention relates to a kind of pumps of the feature of the preamble with claim 1, the especially height of fuel injection system
Press pump.
Background technology
A kind of high-pressure pump of fuel injection system as known to 10 2,009 000 835 A1 of DE.The pump has pumping cylinder head, should
Pumping cylinder head has pumping cylinder and cylinder holes again.Pump piston is disposed in cylinder holes, which moves up and down and pass through translatablely
Tappet assembly and driving unit collective effect, wherein pump piston connect with spring holder and sticks on tappet assembly.In addition,
Sealing element is arranged between pump piston and pumping cylinder head and tappet spring is supported on the lifter body of tappet assembly by spring holder
In.In addition, pump construction in this way so that the pump can be used for example in the crankcase of internal combustion engine.The pump piston of the pump is logical
Roller tappet is crossed with the camshaft collective effect being arranged in internal combustion engine and in internal combustion engine operation, pump piston passes through camshaft
Rotary motion translationally move up and down.When pump piston moves downward, fuel enters the pump working chamber of pump by suction valve
In, the suction valve with the take over shape of pump the low-pressure connector collective effect that constructs.
In addition a kind of configurations of the known pump, by the sleeve for being located at outside between pumping cylinder head and tappet assembly
Constitute loss prevention device.
High-pressure pump has the disadvantages that known to 10 2,009 000 835 A1 of DE：In order to positioned at external sleeve
It realizes anti-lost and needs additional component.It means that being also required to additional installation step in addition.It thereby increases and is assembling
When fallibility, assembly cost is improved due to additional installation step and material is increased due to additional component
Expect cost.
Invention content
The pump of feature according to the present invention with claim 1, the configuration of especially high-pressure pump have the following advantages：It is different
In the prior art, loss prevention device can be constructed by already existing component so that do not need additional component.It has existed
Component be easy to be adapted in structure, so as to construct corresponding loss prevention device.The loss prevention device passes through two
Configuration：
On the one hand, pump piston is kept together by the force closure realized by sealing element with pumping cylinder head.On the other hand, it pumps
Piston is connected cohesively together by spring holder and tappet shape on another side.Pumping cylinder head and tappet assembly are sufficiently tight as a result,
Ground is connected with each other, to prevent two elements from unintentionally being disassembled due to the dead weight of tappet assembly.This is favourable, because thus
Entire pump can without problems be transported and be pumped as a component and can only be installed in an installation step in customers' place.
The advantageous extension of the pump provided in claim 1 can be realized by the measure enumerated in the dependent claims.
According to claim 2, by spring holder is placed in lifter body so that pump piston in axial direction with the tappet
Body is fixed.Advantageously, thus pump piston used fixed function element, i.e. spring holder in the case of and tappet assembly formed
The unit of axial restraint, so that assembly composite construction can be realized by playing element, the i.e. piston pump of connection function.
Advantageously, as illustrated by claim 3, the connection shape between spring holder and lifter body is in locking manner
Construction.The loosening of connection connection more more stable and between spring holder and lifter body than the connection of pure force closure or pine as a result,
It is possible in the case of difficulty to open only.It is possible thereby to improve machinery can be loading.
In addition, by pump configuration according to the present invention advantageously, by playing element, the i.e. pump piston of connection function by pumping
Cylinder head and tappet assembly constitute assembly composite construction, as illustrated by claim 4.Before thereby simplifying assembly
Logistics and assembling process itself because pump can than in the case of two-part solution preferably as assemble it is compound
Structure is transported and installation.
Ensured according to claim 5, is pumped during transportation in knocked-down state, i.e., in being installed to such as internal combustion engine
Before, loss prevention device is constituted.After pump completes installation and is rinsed with fuel or lubricant, reduce the friction of sealing element and
The movement of pump piston can be expended with smaller power to be carried out.
About claim 6 it is possible that the structural configuration based on lifter body and spring holder, snaps to by by spring holder
In lifter body, the sealed connection of shape can be generated between these two elements.By the clamping lock for generating the sealed connection of shape
It is assembled to time consumption that herein can be simpler and not big, this causes to reduce cost.
In addition, as illustrated by claim 7, spring holder has one or more radially projecting on its overall diameter
Portion, the radially protruding part are especially configured to hasp seamed edge or clamping lock seamed edge.
In addition, as illustrated by claim 8, the radially protruding part can with springing be implemented.Spring holder this
Kind of configuration especially improves in many ways illustrated in claim 6 to be snapped to spring holder in lifter body.On the one hand,
It can realize that the shape assembled and established between spring holder and lifter body is sealed with small consuming by the radially protruding part of setting
Connection because the radially protruding part based on smaller friction surface on spring holder entirely around interference volume surface and
Lead to less friction to which frictional resistance is compared.Improve according to another measure of configuration of the present invention be radially protruding part springing
Embodiment.Thus simplify spring holder assembling in lifter body and reduce the maximum assembly force to be expended.Further, since
The embodiment of the springing of the elasticity and radially protruding part of radially protruding part, tappet has been moved across in the overall diameter of spring holder
After the internally positioned protruding portion of body, spring holder automatically moves in final position, is used for the sealed connection of structure form.It is logical
The embodiment for crossing the springing of the radially protruding part of spring holder significantly improves spring holder and lifter body in the state for completing assembly
The sealed connection of shape stability.
In addition, illustrating in claims 9, the internally positioned protrusion on lifter body is in the region that it enters and leaves
In have waveform.This helps to simplify assembly of the spring holder in lifter body with the sealed connection of structure form and to reduce
Assemble bothersome and shortening assembly time.
According to claim 10, two seamed edges on the circular overall diameter of spring holder are rounded.It is possible thereby to significantly
Reduce assembly force when by spring holder clamping lock in lifter body and additionally reduces spring holder inclined risk in assembly.
Therefore cost of the assembly time of the fallibility in assembly, shortening that are substantially reduced to reduce.
Description of the drawings
It is shown in the accompanying drawings and is set forth in the embodiment of the present invention in the explanation below.Attached drawing is shown：
According to the present invention pumps of the Fig. 1 in three-dimensional illustrate；
Fig. 2 in the diagram of amplification in Fig. 1 with the part of the II pumps indicated, there is cylinder cover component and tappet assembly；
The lifter body parts in fig. 2 with IV indicated of the Fig. 3 in the diagram of amplification, wherein especially show that pump piston is borrowed
Spring holder is helped to be axially fixed on lifter body；
The spring holder parts in fig. 2 with V indicated of the Fig. 4 in the diagram of amplification, the spring holder have rounding and not
Rounded edge；
The vertical view of Fig. 5 spring holders indicated in Fig. 4 with A-A, the spring holder have two examples of radially protruding part
Position shown in ground；
The spring holder part that Fig. 6 shows to indicate with VII in Figure 5 according to the first embodiment of radially protruding part；
The spring holder part that Fig. 7 shows to indicate with VII in Figure 5 according to the second embodiment of radially protruding part；
The spring holder part that Fig. 8 shows to indicate with VII in Figure 5 according to the 3rd embodiment of radially protruding part；
The spring holder part that Fig. 9 shows to indicate with VII in Figure 5 according to the fourth embodiment of radially protruding part；With
Figure 10 shows the lifter body part indicated in figure 3 with VI in the diagram of amplification, wherein enters and leaves region
Waveform is especially constituted along direction of insertion (VIII).
Specific implementation mode
Fig. 1 shows that the perspective representation of pump 1, the pump are configured to high-pressure fuel pump and are preferably mounted in common-rail injection system
And the pump especially has suction valve 2.The fuel provided by fuel low-pressure system is transported to via high pressure connection 7 by pump 1
In high-pressure accumulator, the fuel low-pressure system has at least one fuel tank, filter and low-lift pump, passes through fuel injection
The fuel that device stores there from high-pressure accumulator extraction is for being ejected into the respective combustion chamber of internal combustion engine.In addition may be used
See the region of tappet assembly 9, which connect with unshowned driving device, and the driving device especially has cam
Axis, the camshaft are placed in by tappet assembly 9 and thereby by pump piston 13 in the up and down motion of translation.
Fig. 2 shows the schematical diagrams of the first embodiment of pump 1 according to the present invention.The pump 1 has 3 He of cylinder cover component
Tappet assembly 9, they have other single part again.
Cylinder cover component 3 especially has a pumping cylinder head 5 as single component, which includes pumping cylinder 4 and cylinder holes 11,
In, which constitutes cylindrical and elongated opening.Pump piston 13 is guided in cylinder holes 11, and the pump piston is away from pump
There is increased stabilizer blade 41 on the side of cylinder 4.Pump piston 13 radially cylindricality and in axial direction construct elongatedly,
So that pump piston is cooperated to away from the side of increased stabilizer blade 41 in cylindricality and the elongated opening of cylinder holes by it.In addition,
Sealing element 15 is between pumping cylinder 4 and pump piston 13.The sealing element 15 be located in pumping cylinder head 5 and with it is at least one
The sealing lip on pump piston 13 is sticked under prestressing force.Sealing element 15 especially in the region of sealing lip and with pump piston
It is molded to cylindricality in the region of 13 contact area.In addition, cylinder cover component 3 has passes through 13 limit of pump piston in cylinder holes 11
Pump working chamber 35 and tappet spring 19, the pump working chamber is only partially visible in fig. 2, and the tappet spring sticks on pumping cylinder head
On 5.Tappet spring 19 is with the following functions：By cylinder cover component 3 and tappet assembly 9 from pressing each other in installation condition and in operation
It opens, to ensure moving downward for translation, the tappet spring 19 sticks on the cylinder cover component and the tappet assembly respectively
On.Tappet spring 19 is by spring holder 17 and lifter body 21 in reclining and to apply axial force to lifter body 21 and endure
In bar assembly 9.In particular, the spring force resists translational force caused by the rotary motion by camshaft.It is especially constructed uninstalled
In scope for the assembly composite construction of loss prevention device, tappet spring 19 reclines without pre-tightening and therefore not applying force to
Component on.
The tappet assembly 9 of pump 1 has lifter body 21, fulcrum post 23, work roller 25 and spring holder 17.Work roller 25,
Such as it by sliding bearing, can be rotated to support on lifter body 21 by fulcrum post 23.So that can realize that work is rolled
Son 25 rolls on camshaft.Work roller 25 is implemented to cylindricality and has equally cylindrical open inside it on the outer surface
Mouthful, which extends in cylindrical outer surface.Cylindrical fulcrum post 23 is inserted into the cylindrical opening of work roller 25
And it is connect in this way with lifter body 21 after complete assembly so that fulcrum post 23 oneself cannot in axial direction move out.
The direction of translatory motion of pump piston 13 extends along the radial direction of work roller 25 and the column-shaped configuration of fulcrum post 23.Lifter body 21
There is column-shaped configuration, the direction which is parallel to the column-shaped configuration of pump piston 13 to extend at least in subregion.If figure is 3
Shown in, lifter body 21 have on its inside towards pump piston 13 circular protrusion 27 and circular boss 37 and
First notch 39.The circular protrusion 27, which at least can be drawn to section, rounding or bevelling moves towards 33.
In the configuration of sealing element, the sealing element have it is at least one stick under prestress it is close on pump piston
Lip is sealed, the configuration of sealing element 15 causes clamping force, the clamping force in axial direction to keep to force closure pump piston 13
In cylinder holes 11 and to constitute the upper part of assembly composite construction.Retentivity is big in this way so that the retentivity at least phase
Should be in tappet assembly 9 together with its own gravity including tappet spring 19 and pump piston 13, the retentivity is by sealing element
Caused by 15, it is applied to clamping force on pump piston 13, to play preload.
Fig. 3 shows, how to be constructed under assembly composite construction between pump piston 13 and lifter body 21 by spring holder 17
Portion part.Spring holder 17 is connect in this way with pump piston 13, and spring holder 17 has opening 45 in centre, and the opening is sufficiently large so that
Sucker rod 47 can run through, however, the diameter of the increased stabilizer blade 41 of pump piston 13 is more than the diameter of opening 45, also, pump
Piston is completed to stick on spring holder after thus with increased stabilizer blade 41, just as shown in fig. 3.For
This, the increased stabilizer blade 41 of pump piston 13 is formed on boss 37 in the region of the first notch 39 with lifter body 21 to recline, especially
It is so that increased stabilizer blade 41 is centrally located in the region of the first notch 39.The overall diameter of spring holder 17 and in lifter body
Circular protrusion has light interference amount relative to each other on 21 inside.In order to which 13 shape of pump piston is fixed in locking manner, bullet
Spring disk 17 is presented in the open region of lifter body 21 and moves across the radially circular protuberance of lifter body 21
Portion 27 so that spring holder 17 is entered by clamping lock in final position and in axial direction shape is maintained at boss 37 in locking manner
Between protrusion 27.Here, in addition as seen in Figure 3 as, the increased stabilizer blade 41 of pump piston 13 is in axial direction
Shape is fixed in locking manner between spring holder 17 and lifter body 21.
With reference to figure 4, an embodiment of spring holder 17 can especially have radius on original non-rounded edge 43
31.In addition it is shown in FIG. 4：Spring holder 17 has opening 45 in the region of center line 8.
The vertical view indicated with A-A in Fig. 4 of spring holder 17 is shown in FIG. 5.In addition, herein in the centre of spring holder
It shows that radially protruding part 6 is shown in the 45 and region VI on the overall diameter of spring holder 17 of opening.The radially protruding part 6 is especially
It can repeatedly implement on the periphery of spring holder 17, be preferably homogeneously distributed on periphery, however at least implement primary.
The first embodiment of radially protruding part 6 is shown in FIG. 6, wherein radially protruding part 6 is implemented so that it makees
Be more than for protuberantia 17 periphery of spring holder smaller area it is radially projecting and to making overall diameter increase in this region.Outside
The conventional trend in no radially protruding part 6 of diameter is shown in dotted line as reference in figure 6.
The second embodiment of radially protruding part 6 is shown in FIG. 7.In this embodiment, radial protuberantia 6 is implemented,
So that protuberantia is radially projecting more than the large area on 17 periphery of spring holder.Overall diameter is in no radially protruding part 6
Conventional trend is shown in dotted line as reference in the figure 7.
The 3rd embodiment of radially protruding part 6 is shown in FIG. 8.Here, radially protruding part 6 is designed as S-shaped.This is radially prominent
Go out portion 6 to constitute along circumferential direction in neighboring area s1Upper extension, s shapes convex nose 14 and the second notch 12.Here, convex nose 14
One end regions 16 is connect with spring holder 17, wherein another end regions 16 separates radial spacing relative to spring holder 17
Ground extends.So that the elastomeric radial in the free end region 16 of convex nose 14 can be realized.It is radially projecting at this
In the region of the convex nose 14 in portion 6, the overall diameter of spring holder 17 increases.The overall diameter is normal in the case that no radially protruding part 6
Rule trend is shown in dotted line as reference in fig. 8.
The fourth embodiment of radially protruding part 6 is shown in FIG. 9.Here, radially protruding part 6 is designed as S-shaped.It is radially projecting
Extend to the profile S-shaped in portion 6 and constitutes along circumferential direction in neighboring area s2Upper extension, s shapes convex nose 14 and second lacks
Mouth 12.In the region of the convex nose 14 of radially protruding part 6, the overall diameter of spring holder 17 increases.The overall diameter is prominent in no radial direction
The conventional trend gone out in the case of portion 6 is shown in dotted line as reference in fig. 8.
Neighboring area s in Fig. 92More than the neighboring area s in Fig. 81.Thus convex nose 14 to the in the fourth embodiment
The convex nose energy of three embodiments more easily flexible deformation.
Figure 10 shows another configuration for playing improvement assembly of these elements, and especially lifter body 21 is in circular protrusion
Rounding in 27 region moves towards 33.Thus spring holder 17 can be transported along push-in direction VIII in the case where applying a small amount of power
It is dynamic that its most final position between the protrusion 27 and boss 37 of lifter body 21 is moved to by protrusion 27 and by clamping lock
In setting.Contribute to small interference of the characteristic of configuration according to the present invention especially between element spring holder 17 and lifter body 21
Amount is responsible for the lasting sealed connection of shape.In addition, the radius 31 of the spring holder another configuration for making improvements assembly.
Claims (10)
1. the high-pressure pump of a kind of pump (1), especially fuel injection system, there is the pump pumping cylinder head (5), the pumping cylinder head to have pump
There is the pump piston (13) being arranged in the cylinder holes (11), the pump piston can translate for cylinder (4) and cylinder holes (11), the pump
Ground moves up and down and passes through tappet assembly (9) and driving device collective effect, wherein the pump piston (13) and spring holder
(17) it connects and sticks on the tappet assembly (9), wherein between the pump piston (13) and the pumping cylinder head (5)
It is disposed with sealing element (15), and wherein, tappet spring (19) is supported on the tappet assembly by the spring holder (17)
(9) in lifter body (21), which is characterized in that the spring holder (17) is maintained in the lifter body (21), also, the pump
Piston (13) is maintained at the pumping cylinder head (5) to force closure by the clamping force for playing preload of the sealing element (15)
In.
2. pump (1) described in accordance with the claim 1, which is characterized in that the spring holder (17) is by the pump piston (13) along axis
It is fixed on the lifter body (21) to direction.
3. pump (1) described in accordance with the claim 1, which is characterized in that the spring holder (17) and the lifter body (21) shape
It is connected cohesively together.
4. pump (1) described in accordance with the claim 1, which is characterized in that the pumping cylinder head (5) and the tappet assembly (9) pass through
Element, the i.e. pump piston (13) for playing connection function is combined as an assembly composite construction.
5. pump (1) described in accordance with the claim 1, which is characterized in that by caused by the sealing element (15), be applied to institute
The size for stating clamping force on pump piston (13), to play preload is：The clamping force corresponds at least to the tappet assembly (9)
With its own gravity of the pump piston (13).
6. pump (1) described in accordance with the claim 3, which is characterized in that the shape of the spring holder (17) and the lifter body (21)
The sealed connection structure of shape is realized by circular protrusion (27) on the interior diameter of the lifter body (21) (29), wherein institute
The overall diameter for stating spring holder (17) has relative to the interior diameter (29) at the protrusion (27) of the lifter body (21)
Small interference volume, thus especially so that the spring holder (17) can be in clamping lock after the protrusion (27) in the lifter body
(21) in.
7. pumping (1) according to claim 6, which is characterized in that the spring holder (17) has at least on its overall diameter
One or more radially protruding parts (6).
8. pumping (1) according to claim 7, which is characterized in that at least one prominent on the overall diameter of the spring holder
Implement with going out portion (6) springing so that the region of the largest outer diameter of the spring holder (17) is moving across the protrusion
(27) change when, especially become smaller and temporarily carry out reversibly and limitation, and be successfully pushed into the spring holder (17)
The overall diameter flexibly moves return after in the lifter body (21).
9. pumping (1) according to claim 5, which is characterized in that the protrusion (27) on the lifter body (21) is at it
Into region and/or leave in region with rounding or bevelling trend (33).
10. pumping (1) according to claim 5, which is characterized in that two on the circular overall diameter of the spring holder (17)
A seamed edge is rounded.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015222329.9 | 2015-11-12 | ||
| DE102015222329 | 2015-11-12 | ||
| DE102016203768.4 | 2016-03-08 | ||
| DE102016203768.4A DE102016203768B4 (en) | 2015-11-12 | 2016-03-08 | Pump, in particular high-pressure pump of a fuel injection system, with a mounting assembly of plunger assembly and pump cylinder head, in particular by a latching connection between spring plate and plunger body |
| PCT/EP2016/074383 WO2017080738A1 (en) | 2015-11-12 | 2016-10-12 | Pump, in particular a high-pressure pump of a fuel injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108350845A true CN108350845A (en) | 2018-07-31 |
Family
ID=58640232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680065970.7A Pending CN108350845A (en) | 2015-11-12 | 2016-10-12 | The high-pressure pump of pump, especially fuel injection system |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3374624A1 (en) |
| CN (1) | CN108350845A (en) |
| DE (1) | DE102016203768B4 (en) |
| WO (1) | WO2017080738A1 (en) |
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| CN102959227A (en) * | 2010-06-24 | 2013-03-06 | 罗伯特·博世有限公司 | Pump, in particular a high-pressure fuel pump |
| CN103154512A (en) * | 2010-10-15 | 2013-06-12 | 罗伯特·博世有限公司 | High-pressure pump for a fuel injection device |
| CN103261684A (en) * | 2010-12-17 | 2013-08-21 | 罗伯特·博世有限公司 | High-pressure pump |
| CN104204501A (en) * | 2012-03-19 | 2014-12-10 | 罗伯特·博世有限公司 | High-pressure pump |
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| DE102010039205A1 (en) * | 2010-08-11 | 2012-02-16 | Robert Bosch Gmbh | Roller tappet for use in high pressure pump, particularly for common rail injection system of internal combustion engine, has tappet body with roller shoe and track roller, where track roller cooperates with cam surface of cam shaft |
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2016
- 2016-03-08 DE DE102016203768.4A patent/DE102016203768B4/en not_active Expired - Fee Related
- 2016-10-12 CN CN201680065970.7A patent/CN108350845A/en active Pending
- 2016-10-12 WO PCT/EP2016/074383 patent/WO2017080738A1/en active Application Filing
- 2016-10-12 EP EP16779128.4A patent/EP3374624A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6523524B1 (en) * | 1998-07-02 | 2003-02-25 | Robert Bosch Gmbh | Radial piston pump |
| CN102959227A (en) * | 2010-06-24 | 2013-03-06 | 罗伯特·博世有限公司 | Pump, in particular a high-pressure fuel pump |
| CN103154512A (en) * | 2010-10-15 | 2013-06-12 | 罗伯特·博世有限公司 | High-pressure pump for a fuel injection device |
| CN103261684A (en) * | 2010-12-17 | 2013-08-21 | 罗伯特·博世有限公司 | High-pressure pump |
| CN104204501A (en) * | 2012-03-19 | 2014-12-10 | 罗伯特·博世有限公司 | High-pressure pump |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016203768A1 (en) | 2017-05-18 |
| DE102016203768B4 (en) | 2017-10-26 |
| WO2017080738A1 (en) | 2017-05-18 |
| EP3374624A1 (en) | 2018-09-19 |
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Application publication date: 20180731 |