CN107816403A - High-pressure fuel pump - Google Patents
High-pressure fuel pump Download PDFInfo
- Publication number
- CN107816403A CN107816403A CN201710820407.2A CN201710820407A CN107816403A CN 107816403 A CN107816403 A CN 107816403A CN 201710820407 A CN201710820407 A CN 201710820407A CN 107816403 A CN107816403 A CN 107816403A
- Authority
- CN
- China
- Prior art keywords
- screw
- fuel pump
- pressure fuel
- acting surface
- mounting flange
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 34
- 125000006850 spacer group Chemical group 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 241000565675 Oncomelania Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- 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
- F02M59/48—Assembling; Disassembling; Replacing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
- F16B31/04—Screwed connections specially modified in view of tensile load; Break-bolts for maintaining a tensile load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
- F16B43/02—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
Abstract
The present invention relates to a kind of high-pressure fuel pump (10) with mounting flange (40), the mounting flange can be fixed in keeping body (38) in installment state by immobilising device (52), wherein, high-pressure fuel pump (10) has spacer segment (47), and the spacer segment causes spacing in installment state between keeping body and the fixing section (48) of mounting flange (40).
Description
Technical field
The present invention relates to a kind of high-pressure fuel pump of the fuel injection system for internal combustion engine.
Background technology
Such high-pressure fuel pump generally includes pump case, and the pump case has the mounting flange being fixed thereon.This is solid
Determining flange has fixing section, and in installment state, keeping body is acted in the fixing section for fixed retaining element
On.Ground is caused by structure, connection between flange and housing is due to pressure, vibration and especially when clamping element is related to screw
Strong mechanical load is subjected to due to clamping force.The keeping body can for example be related to camshaft outer cover, cylinder cap or other housings.Institute
Stating retaining element can be with as illustrated more particularly to screw.Here, mode connects for screw must assure that the tight fit of pump and from
And ensure the lasting reliable function of pump.Here, the overload of mode connects for screw must be avoided or even failed.Because with high-pressure pump
Operating pressure gradually increase, reagency also increases caused by pressure, so the requirement to the mode connects for screw also increases.Together
When, the installing space for being available for mode connects for screw to use tapers into.
The content of the invention
The problem of of the invention, solves by the high-pressure fuel pump according to the present invention.The present invention also proposes favourable extension side
Formula.In addition, for the important feature of the present invention can be below explanation and find in the accompanying drawings, wherein, these features can
Enough also can be individually important for invention with different combinations, and to this not again it is manifestly intended that.
The present invention proposes a kind of high-pressure fuel pump, has mounting flange, the mounting flange can be borrowed in installment state
Immobilising device is helped to be fixed in keeping body.The high-pressure fuel pump has spacer segment, and the spacer segment is in installment state
Cause the spacing between the keeping body and the fixing section of the mounting flange.
The present invention has advantages below：By the spacing between keeping body and the fixing section of mounting flange, in installation shape
In state, high-pressure pump is compressed against keeping body under prestress.It is possible thereby to the stabilization provided between high-pressure pump and keeping body connects
Connect, the connection can also especially sustain due to vibration, temperature fluctuation and thermograde and by high-pressure pump for a long time
The reagency that works caused by pressure produces and the load occurred.Especially when retaining element is configured to screw or bolt,
It can also be prevented by the measure：Retaining element is loosened due to instrumentation.In addition, the fixed configuration referred to makes it possible to
With save material and so as to comparatively speaking favourable, finite elasticity, such as flange knot made of the sheet material being molded
Structure.
It is radially projecting convex on the housing of spacer segment including high-pressure fuel pump in a configuration of high-pressure pump
Side.This allows simple and inexpensive manufacture.
In another configuration of high-pressure pump, immobilising device has the first acting surface.In addition, mounting flange is in fixing section
With the second acting surface.Here, in installment state, the first acting surface and the second acting surface mutually compress, wherein, the first effect
Face and the second acting surface shape complimentary to one anotherly so that：In installment state, when fixing section is displaced to and tilted in the state of position,
Immobilising device is subjected to substantially pure extension load.In association it is contemplated that it is preferred that by fixing section by pre-mounted state
First state at least in part, be flexibly converted in installment state relative in the inclined second state of first state,
In pre-mounted state, high-pressure pump is abutted in keeping body, is fixed on but without by immobilising device in keeping body, in installation shape
In state, high-pressure pump is fixed in keeping body by immobilising device.Here, especially it is contemplated that mounting flange has in radial direction side
Exceed the flange region of the radially projecting chimb of housing and protrusion upwards, the flange region has fixing section.Here, flange
Region separates spacing in pre-mounted state with keeping body.In installment state, flange region can surround the side of annular nib
Edge region bends so that flange region and thereby fixing section, which are also converted to, to be tilted in the state of position.Here, flange region is in installation shape
It can be abutted in state with free end in keeping body.However, immobilising device is mutual due to the first acting surface and the second acting surface
Configuration is basically subjected to pure tensile load.The service life of immobilising device is improved because without or approximate do not bend
Torque, but only or approximate only have tensile load.Furthermore, it is possible to the material for immobilising device is saved, because can use
It is configured to less immobilising device.That is, compared with being applied to the design of immobilising device thereon in respect of bending moment in advance, can make
With less and so as to especially weaker immobilising device.
Here, the first acting surface and the second acting surface can be structured as it is face formula or spherical or taper.Especially ball
The configuration of shape is had proven to be favourable, because thus, it is possible to realize immobilising device in the different inclination position states of fixing section
Approximate pure extension load.
It is also conceivable that immobilising device includes pad and the first effect surface construction is on the pad.Therefore, can be by
Pad ensures：Immobilising device is subjected to substantially pure load.Traditional immobilising device, especially such as screw can be especially used, and
Special adaptation need not be carried out to realize the present invention.
In addition can set, the fixing section of mounting flange has vacancy portion or projection, wherein, the vacancy portion or projection
Including the second acting surface.Therefore the high-pressure pump particularly simply constructed is provided.Traditional fixation can also be especially used herein
Device, especially such as screw, without carrying out special be adapted to realize the present invention.
In association it is contemplated that the vacancy portion is worked into fixing section by being molded or cutting.Therefore, vacancy
Portion can be worked into fixing section by extremely simple and inexpensive mode.
Moreover, it is proposed that retaining element is configured with the screw of head of screw and shank of screw, and the second acting surface is configured to
Head of screw support so that the downside of head of screw is orthogonal with extending through the screw axis of shank of screw in installment state.Therefore,
Pure or approximate pure tensile force effect is on screw.It is possible thereby to using being configured to less screw.
At this it is contemplated that the downside of head of screw in installment state with being that plane is parallel on the upside of keeping body.Thus
Extremely simple and stable connection between high-pressure pump and keeping body can be provided.
Alternatively, substitution is screwed into the screw in the threaded openings in keeping body, can also protrude a spiral shell by keeping body
Line pin, a nut are tightened onto on the threaded as immobilising device.The vertical pin so constructs so that the longitudinal axis of vertical pin exists
The downside extension of nut is orthogonal in installment state.
It is contemplated that being provided with for the screw positioned at the screw thread for keeping side in another configuration, wherein, the spiral shell
Oncomelania line so constructs so that the longitudinal axis of the screw thread is orthogonal to the downside extension of head of screw in installment state.Cause
This, can cancel the vacancy portion being worked into fixing section or projection.The use of pad can also be cancelled.
It can finally set, the maximum angular that the downside of head of screw surrounds in installment state with the cross line of screw axis
Spend +/- between 1 °, preferably +/- between 0.5 °.Therefore certain flexibility can be realized.But approximate pure extension load is applied to
On immobilising device.
Brief description of the drawings
Other feature, application possibility and the advantage of the present invention draw by the description later to embodiments of the invention,
They are illustrated with reference to the accompanying drawings.
It is shown in which：
Longitudinal cross-section of the high-pressure fuel pump that Fig. 1 is abutted in keeping body in pre-mounted state, high-pressure fuel pump tool
There are pump case and mounting flange；
Fig. 2 shows according to Fig. 1's in installment state and according to first embodiment, the height that is fixed in keeping body
The schematic diagram of press pump；
A Fig. 3 Fig. 2 region, amplification schematic cross sectional views；With
Fig. 4 is according to diagram second embodiment, corresponding to Fig. 2 of replacement.
Identical reference is carried in the accompanying drawing of intimate element and region below and is not explained in detail again
State.
Embodiment
The high-pressure fuel pump for the internal combustion engine for being used to not show further in Fig. 1 carries reference 10 on the whole.Should
High-pressure fuel pump 10 has pump case 12 substantially cylindrical on the whole, is disposed with the pump case or in the pump case
The main parts of high-pressure fuel pump 10.The high-pressure fuel pump 10 has：Into/control valve 14；It is arranged in conveying chamber 16
In, can be placed in by the drive shaft being not shown move back and forth in conveyor piston 18；Dump valve 20；With pressure limiting valve 22.
First passage 24 in housing 12 be present, the first passage 24 and conveying chamber 16 and with conveyor piston 18 coaxially
Extend and the first passage leads to second channel 26 from conveying chamber 16, the second channel is relative to first passage 24 with 90 ° of angles
Arrange and pressure limiting valve 22 is received in the second channel.The longitudinal axis of pump case 12 carries accompanying drawing on the whole in Fig. 1
Mark 28.In Fig. 1 up, pressure vibration dampener 30 is arranged in pump case 12.
In operation, fuel is drawn into via entrance/control valve 14 in intake stroke by conveyor piston 18 defeated
Send in room 16.In stroke is conveyed, the fuel in conveying chamber 16 is compressed and is for example discharged to height via dump valve 20
In intermediate pressure section (not having reference), such as fuel collecting pipe road (" rail ") is discharged to, there, fuel stores under high pressure.
The fuel quantity discharged in stroke is conveyed is adjusted by solenoid-operated into control valve 14 herein.When in high-pressure area
During in the presence of the superpressure not allowed, pressure limiting valve 22 is opened, and thus fuel can be flowed in conveying chamber 16 by high-pressure area.
In the lower zone 32 towards keeping body 38, pump case 12 has circular outline.In the lower zone 32
In be also configured with centering section 34, the centering section can be imported into the receiving opening 36 of keeping body 38, and the keeping body is current
It is configured to the cylinder cap only symbolically shown.Therefore, high-pressure pump is related to " grafting pump ".
In addition, circular and annular mounting flange 40 is fixed with the lower zone 32 of pump case 12.According to work as
Preceding embodiment, mounting flange 40 are fixed in pump case 12 by weld part 42.It is envisaged, however, that other known fixation
Possibility.In addition, mounting flange 40 is fabricated to the plate forming part made of stainless steel is by punching press in the present example.
Figure 1 illustrates pre-mounted state in, mounting flange 40 is orthogonal to the ground of longitudinal axis 28 in radial directions
Spacing d is separated from the flange region 44 that pump case 12 protrudes and keeping body 38.Because being radially positioned for flange region 44 is interior
The area supporting in portion is equally orthogonal on the annular nib 46 of the protrusion of longitudinal axis 28 in radial directions pump case 12, from
And mounting flange extends yardstick d with height of the keeping body 38 in the spaced up annular nib 46 in the side of longitudinal axis 28.Therefore, ring
Shape chimb 46 is configured to spacer segment.In order to be fixed in keeping body 38, the flange region 44 of mounting flange 40 has fixed area
Section 48, the fixing section have the pass through openings 50 upwardly extended in the side of longitudinal axis 28.
It is as be shown in figures 2 and 3, in order to which high-pressure pump 10 is fixed in keeping body 38, by immobilising device 52 through fixation
The pass through openings 50 of flange 40 and it is tightened in the screwed hole 54 correspondingly in keeping body 38.Here, immobilising device 52
Including screw 53.In screwing operations, the flange region 44 of mounting flange 40 surrounds the freedom of the annular nib 46 of pump case 12
End regions are bent, and are currently substantially resiliently bent.Here, mounting flange 40 is so bent so that the radial direction of mounting flange 40
It is upper to be abutted in positioned at outside free end 56 on the upside 58 of keeping body 38, wherein, fixing section 48 still separates with keeping body 38
Spacing.Therefore, high-pressure pump 10 compresses against keeping body 38 in an advantageous manner.In the following manner：40 main bullet of mounting flange
Property bend so that the mounting flange especially applies prestress on the chimb 46 of pump case 12 and so as to by high pressure herein
Pump is pressed against on the upside 58 of keeping body 38 under prestress.In addition, thus mounting flange 40 so applies resistance immobilising device
The opposite force of 52 confining force is on immobilising device 52 so that can substantially prevent in an advantageous manner due to instrumentation and
Cause to loosen.
If fixing section 48 has the pass through openings 50 of only one cylinder as in the prior art, such as in order to straight
Sight shows that then this causes shown in Fig. 2 and 3 right side：The head of screw 60 of each immobilising device 52 is relative to shank of screw 62 with angle
γ is bent.Here, angle γ also corresponds to flange region 44 by the bent angle alpha in pre-mounted state to installment state.Therefore,
Head of screw 60 is deflected by the screw axis 64 for extending through shank of screw 62.This causes：Due to bending moment to immobilising device 52
Cause unfavorable bend loading.But thus in order to ensure high-pressure pump 10 is securely fixed in keeping body 38, it is necessary to selection foot
Enough big screws 53, enduringly to withstand bend loading.
In order to prevent such unfavorable bend loading to screw 53, diagram on the left of Fig. 2 (and according to Fig. 3
In enlarged drawing) vacancy portion 66 in fixing section 48 be present.Here, the downside in vacancy portion 66 is configured to head of screw supporting
Portion, face formula the second acting surface 72.Here, second acting surface with it is mutual therewith on the downside 73 of the head of screw 60 of screw 62
Mend ground construction the first acting surface 70 so concur so that immobilising device 52 be only subjected in shown installment state or
Approximation is only subjected to pure tensile load.This is especially because the main extension yardstick of acting surface 72 and mounting flange 40 is surrounded and is at an angle of
α, i.e., tilted relative to the main extension yardstick.The angle [alpha] corresponds to inclination position state of the flange region 44 in installment state.Cause
This, in installment state, the inclination position state in the Compensating flange region 44 of acting surface 72 and so as to compensate the inclination of fixing section 48
Position state so that the acting surface 70 on the downside 73 of head of screw 60 is orthogonal to the ground of screw axis 64 in installment state and extended through
Shank of screw 62.
Especially also as drawn as Fig. 3, pass through openings 50 are also so constructed so that without undesirable bend loading
It is applied on immobilising device 52.Therefore, the diameter D of pass through openings 5050More than shank of screw 62 in the region of pass through openings 50
Diameter D62.Therefore, certain gap or certain gap between shank of screw 62 and pass through openings 50 be present.Therefore, even if
There is certain non-coaxality between the longitudinal axis of shank of screw 62 and the longitudinal axis of pass through openings 50, will not also cause screw 53
Undesirable bend loading.In addition as seen from Figure 3, the longitudinal axis of pass through openings 50 relative to flange region 44 plane into
One oblique angle, i.e. angle [alpha],.
When high-pressure pump 10 is fixed in keeping body 38, (if not screwing on screw 53 also) pass through openings 50 first
Longitudinal axis tilts relative to the longitudinal axis of shank of screw 62, and the first acting surface 70 inclines also relative to the second acting surface 72
Tiltedly.The undesirable bend loading on shank of screw 62 is applied in the pre-mounted state by shank of screw 62 and pass through openings
Existing gap prevents or at least reduced between 50.If screw on screw 53, then the bullet of fixing section 48 of flange region 44
Bend to property.Thus the second acting surface 72 is at least substantially parallel to the first acting surface 70, and the longitudinal axis of pass through openings 50
Line is at least substantially coaxial with the longitudinal axis of shank of screw 62.Therefore, in the state that high-pressure pump 10 is fixed in keeping body 38,
I.e. in installment state, not or it is applied at least without significant bend loading on shank of screw 62.
In the embodiment according to figure 4, vacancy portion 66 is equally processed in fixing section 48.However, vacancy portion 66
There is spherical or taper acting surface 72 herein.Immobilising device 52 has screw 53 and pad 74.Imported in vacancy portion 66
Pad 74, the downside of the pad form the acting surface 70 of complementation in this case.Head of screw 60 is disposed with pad 74, is made
Obtain screw herein and also be subjected to pure or approximate pure tensile load.Here, the spherical embodiment party of complementary acting surface 68,72
Formula has advantages below：The different inclination position states of fixing section 48 can so be compensated so that screw 53 is born by pure stretching
Lotus.
Generally can be in the following manner：Screw 53 in Fig. 2 and 3 left side is no or approximation does not bear bending force
Square, and use is configured to less screw 53.In addition, it will be apparent that increase the mode connects for screw between high-pressure pump 10 and keeping body 38
Fatigue strength.
In embodiment shown in the accompanying drawings, using screw 53 as immobilising device, the screw is screwed into keeping body 38
In screwed hole 54 in.In the embodiment that one is not shown, a threaded is protruded by keeping body.Then there is insertion
The flange section of opening is inserted on the threaded, and is hereafter laid on the threaded and tightened a nut, thus will be solid
Determine section to be resiliently bent in the above described manner.
Claims (10)
1. a kind of high-pressure fuel pump (10), has mounting flange (40), the mounting flange can be by solid in installment state
Determine device (52) to be fixed in keeping body (38), it is characterised in that the high-pressure fuel pump (10) has spacer segment (47), institute
State between spacer segment causes in installment state between the keeping body and the fixing section (48) of the mounting flange (40)
Away from.
2. according to the high-pressure fuel pump (10) described in claim 1, it is characterised in that the spacer segment includes being located at the material
Expect the radially projecting chimb on the housing of high-pressure pump (10).
3. according to the described high-pressure fuel pump (10) of at least one in preceding claims, it is characterised in that the immobilising device
(52) with the first acting surface (70) and the mounting flange (40) in the fixing section (48) with the second acting surface
(72), wherein, in installment state, first acting surface (70) and second acting surface (72) extrude against one another, and
And
First acting surface (70) and second acting surface (72) are molded complimentary to one anotherly so that：In installment state,
When the fixing section (48) is displaced in inclination position state, the immobilising device (52) is subjected to substantially pure extension load.
4. according to the high-pressure fuel pump (10) described in claim 3, it is characterised in that first acting surface (70) and described
Two acting surfaces (72) are configured to face formula or spherical or taper.
5. according to the described high-pressure fuel pump (10) of at least one in claim 3 or 4, it is characterised in that the immobilising device
(52) include pad (74) and first acting surface (70) construction is on the pad (74).
6. according to the described high-pressure fuel pump (10) of at least one in claim 3 to 5, it is characterised in that the mounting flange
(40) fixing section (48) has vacancy portion (66) or raised, wherein, the vacancy portion (66) or described raised including described
Second acting surface (72).
7. according to the high-pressure fuel pump (10) described in claim 6, it is characterised in that the vacancy portion (66) is by being molded or cutting
Cut and be machined into the fixing section.
8. according to the described high-pressure fuel pump (10) of at least one in claim 3 to 7, it is characterised in that
The immobilising device (52) includes the screw (53) with head of screw (60) and shank of screw (62), also,
Second acting surface (72) is configured to head of screw support so that the downside (73) of the head of screw (60) is in installation shape
It is orthogonal with extending through the screw axis (64) of shank of screw (62) in state, and/or so that the downside (73) of the head of screw (60)
Upside (58) with the keeping body (38) in installment state is that plane is parallel.
9. according to the high-pressure fuel pump (10) described in claim 8, it is characterised in that be provided with for the screw (53) positioned at holding
The screw thread on side, wherein, the screw thread constructs in the following manner：So that the longitudinal axis of the screw thread is being installed
Downside (73) extension of the head of screw (60) is orthogonal in state.
10. according to the described high-pressure fuel pump (10) of at least one in claim 8 or 9, it is characterised in that the head of screw
(60) maximum angle that downside (73) surrounds in installment state with the cross lines of the screw axis +/- between 1 °,
It is preferred that +/- between 0.5 °.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016217409.6A DE102016217409A1 (en) | 2016-09-13 | 2016-09-13 | High-pressure fuel pump |
| DE102016217409.6 | 2016-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107816403A true CN107816403A (en) | 2018-03-20 |
Family
ID=61247173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710820407.2A Pending CN107816403A (en) | 2016-09-13 | 2017-09-13 | High-pressure fuel pump |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20180029891A (en) |
| CN (1) | CN107816403A (en) |
| DE (1) | DE102016217409A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2621889A (en) * | 2022-08-26 | 2024-02-28 | Borgwarner Luxembourg Operations | Fuel pump assembly |
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| GB870160A (en) * | 1957-05-31 | 1961-06-14 | Roger Faillettaz | Improvements in fastening assemblies including bolts or screws |
| US4565320A (en) * | 1982-03-15 | 1986-01-21 | Yanmar Diesel Engine Co. Ltd. | Unit injector of internal combustion engine |
| DE4029376A1 (en) * | 1990-09-15 | 1992-03-19 | Bosch Gmbh Robert | Anti-loosening device for two threaded components - has bowed leaf spring, fixed to one component, which when tightened, expands radially to tension two components |
| DE4222081A1 (en) * | 1992-07-04 | 1994-01-05 | Kloeckner Humboldt Deutz Ag | Diesel internal combustion engine - has fuel injection equipment incorporating injection pump with pump bush, pump being fixed to housing so that bush is not deformed. |
| CN101080571A (en) * | 2004-12-28 | 2007-11-28 | 罗伯特·博世有限公司 | Piston pump in particular a high-pressure fuel pump for an internal combustion engine on a motor vehicle |
| CN101311523A (en) * | 2007-05-21 | 2008-11-26 | 株式会社日立制作所 | Fluid pressure pulsation damper mechanism and high-pressure fuel pump equipped with fluid pressure pulsation damper mechanism |
| CN101424235A (en) * | 2007-10-31 | 2009-05-06 | 株式会社日立制作所 | High-pressure fuel supply pump and the manufacturing method |
| EP2112368A2 (en) * | 2008-04-25 | 2009-10-28 | Hitachi Ltd. | Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combustion engine with such mechanism |
| CN101821493A (en) * | 2007-10-11 | 2010-09-01 | 罗伯特·博世有限公司 | Flansch einer hochdruckkraftstoffpumpe |
| JP2011099426A (en) * | 2009-11-09 | 2011-05-19 | Denso Corp | Damper assembly, high pressure pump using the same, and method of manufacturing the high pressure pump |
| CN102197212A (en) * | 2008-10-30 | 2011-09-21 | 日立汽车系统株式会社 | Pump for supplying high-pressure fuel |
| JP2011220200A (en) * | 2010-04-08 | 2011-11-04 | Denso Corp | High pressure pump |
| US20120006304A1 (en) * | 2010-07-06 | 2012-01-12 | Toyota Boshoku Kabushiki Kaisha | Fuel pump attachment structure |
| JP2013199873A (en) * | 2012-03-26 | 2013-10-03 | Hitachi Automotive Systems Ltd | High-pressure fuel supply pump |
| CN204200440U (en) * | 2014-09-30 | 2015-03-11 | 长城汽车股份有限公司 | Fuel oil injectionpump, engine fuel system and vehicle |
| CN104995404A (en) * | 2013-02-18 | 2015-10-21 | 罗伯特·博世有限公司 | Assembly comprising a pump element and a fastening flange |
-
2016
- 2016-09-13 DE DE102016217409.6A patent/DE102016217409A1/en not_active Withdrawn
-
2017
- 2017-09-07 KR KR1020170114340A patent/KR20180029891A/en unknown
- 2017-09-13 CN CN201710820407.2A patent/CN107816403A/en active Pending
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| GB252030A (en) * | 1925-05-11 | 1926-09-09 | Paul Georg Ehrhardt | Press-ring for the support of screws and nuts |
| GB870160A (en) * | 1957-05-31 | 1961-06-14 | Roger Faillettaz | Improvements in fastening assemblies including bolts or screws |
| US4565320A (en) * | 1982-03-15 | 1986-01-21 | Yanmar Diesel Engine Co. Ltd. | Unit injector of internal combustion engine |
| DE4029376A1 (en) * | 1990-09-15 | 1992-03-19 | Bosch Gmbh Robert | Anti-loosening device for two threaded components - has bowed leaf spring, fixed to one component, which when tightened, expands radially to tension two components |
| DE4222081A1 (en) * | 1992-07-04 | 1994-01-05 | Kloeckner Humboldt Deutz Ag | Diesel internal combustion engine - has fuel injection equipment incorporating injection pump with pump bush, pump being fixed to housing so that bush is not deformed. |
| CN101080571A (en) * | 2004-12-28 | 2007-11-28 | 罗伯特·博世有限公司 | Piston pump in particular a high-pressure fuel pump for an internal combustion engine on a motor vehicle |
| CN101311523A (en) * | 2007-05-21 | 2008-11-26 | 株式会社日立制作所 | Fluid pressure pulsation damper mechanism and high-pressure fuel pump equipped with fluid pressure pulsation damper mechanism |
| CN101821493A (en) * | 2007-10-11 | 2010-09-01 | 罗伯特·博世有限公司 | Flansch einer hochdruckkraftstoffpumpe |
| CN101424235A (en) * | 2007-10-31 | 2009-05-06 | 株式会社日立制作所 | High-pressure fuel supply pump and the manufacturing method |
| EP2112368A2 (en) * | 2008-04-25 | 2009-10-28 | Hitachi Ltd. | Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combustion engine with such mechanism |
| CN102197212A (en) * | 2008-10-30 | 2011-09-21 | 日立汽车系统株式会社 | Pump for supplying high-pressure fuel |
| JP2011099426A (en) * | 2009-11-09 | 2011-05-19 | Denso Corp | Damper assembly, high pressure pump using the same, and method of manufacturing the high pressure pump |
| JP2011220200A (en) * | 2010-04-08 | 2011-11-04 | Denso Corp | High pressure pump |
| US20120006304A1 (en) * | 2010-07-06 | 2012-01-12 | Toyota Boshoku Kabushiki Kaisha | Fuel pump attachment structure |
| JP2013199873A (en) * | 2012-03-26 | 2013-10-03 | Hitachi Automotive Systems Ltd | High-pressure fuel supply pump |
| CN104995404A (en) * | 2013-02-18 | 2015-10-21 | 罗伯特·博世有限公司 | Assembly comprising a pump element and a fastening flange |
| CN204200440U (en) * | 2014-09-30 | 2015-03-11 | 长城汽车股份有限公司 | Fuel oil injectionpump, engine fuel system and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20180029891A (en) | 2018-03-21 |
| DE102016217409A1 (en) | 2018-03-15 |
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Application publication date: 20180320 |