CN105909437A - Fuel pump transmission device and fuel injection system comprising same - Google Patents
Fuel pump transmission device and fuel injection system comprising same Download PDFInfo
- Publication number
- CN105909437A CN105909437A CN201610299375.1A CN201610299375A CN105909437A CN 105909437 A CN105909437 A CN 105909437A CN 201610299375 A CN201610299375 A CN 201610299375A CN 105909437 A CN105909437 A CN 105909437A
- Authority
- CN
- China
- Prior art keywords
- mounting flange
- fuel pump
- travelling gear
- flange
- transmission device
- 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
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/06—Feeding by means of driven pumps mechanically driven
-
- 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
- F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
- F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Gears, Cams (AREA)
Abstract
The invention relates to the technical field of fuel injection system equipment, in particular to a fuel pump transmission device and a fuel injection system comprising the same. The fuel pump transmission device mainly comprises a transmission gear, a fixed flange and a fuel pump provided with a cam shaft. The transmission gear is installed outside the cam shaft in a sleeving mode so as to drive the cam shaft to rotate. The transmission gear is installed inside the fixed flange in a sleeved mode and rotates relative to the fixed flange. All axial force and most radial force of the transmission gear can be transmitted to the fixed flange, only a small part of the radial force is transmitted between the transmission gear and the cam shaft of the fuel pump, vibration of the fuel pump can be effectively reduced, and the service life of the fuel pump is prolonged.
Description
Technical field
The present invention relates to fuel injection system equipment technical field, particularly relate to a kind of fuel pump and pass
Move device and be provided with the fuel injection system of this device.
Background technology
Fuel pump is one of basic element of character in the fuel injection system of automobile, and effect is fuel oil
It is transported in fuel feed pump after sucking-off from fuel tank, pressurization, and fuel pressure regulator cooperation is built
Vertical certain fuel pressure.
In the prior art, the camshaft of fuel pump is typically directly connected with travelling gear, such as Fig. 1
Shown in, directly travelling gear 2 ' is installed to the convex of fuel pump 1 by nut 3 ' and woodruff key 4 '
On wheel shaft 1-1.
But, in above-mentioned connected mode, travelling gear 2 ' is directly carried by camshaft 1-1,
The load of travelling gear 2 ' all can be delivered on fuel pump 1 by camshaft 1-1.On the one hand,
Travelling gear 2 ' can produce certain radial force to camshaft 1-1；If travelling gear 2 ' is oblique
Gear, then the axle power that travelling gear 2 ' also can be certain to camshaft 1-1 transmission.This all can make combustion
Oil pump vibration increases, and reliability reduces.
In view of the defect of above-mentioned prior art, the invention provides a kind of fuel pump transmission device and
It is provided with the fuel injection system of this device.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention there is provided a kind of fuel pump transmission device and is provided with this
The fuel injection system of device, effectively reduces the stress of fuel pump cam axle, improves fuel pump
Service life.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of fuel pump transmission device, bag
Including travelling gear, mounting flange and be provided with the fuel pump of camshaft, described travelling gear is set in
Outside described camshaft, to drive described cam axle；Described travelling gear is set in described solid
Determine in flange, and rotate relative to described mounting flange, so that whole axles of described travelling gear
Can be for delivery on described mounting flange to power and major part radial force.
Further, described travelling gear is set in described fixing by the fixture radially installed
In flange, so that described travelling gear is when rotating relative to described mounting flange, can be relative to
Described mounting flange axially positions.
Further, described fixture is variable diameters bolt, and the outer wall of described mounting flange sets
There is the first bolt hole, the outer wall of described travelling gear be correspondingly provided with oil-way along excircle,
Described variable diameters bolt is sequentially set in the first bolt hole and oil-way, so that described transmission
Gear, when rotating relative to described mounting flange, axially can position relative to described mounting flange.
Further, described fixture is alignment pin, and described travelling gear is set with by alignment pin
In described mounting flange, so that described travelling gear is when rotating relative to described mounting flange,
Axially can position relative to described mounting flange.
Further, between described travelling gear and mounting flange, it is set with flange lining, described
Flange lining is for forming oil film between described travelling gear and mounting flange, described to reduce
Friction loss between travelling gear and mounting flange.
Further, described mounting flange, flange lining and travelling gear are sequentially set in described
Outside camshaft, be interference fit between described flange lining and mounting flange, and with described transmission
It it is matched in clearance between gear.
Further, also including the pedestal being set in outside described camshaft, described mounting flange is pacified
It is loaded on described pedestal.
Further, it is set with a keyboard outside described camshaft, is set with in described travelling gear
Cross recess, described travelling gear coordinates the described cam of drive by a described keyboard with cross recessed
Axle rotates.
Further, a described keyboard is loaded on institute by positioning key and fixing nut fixed cover respectively
Stating outside the end of camshaft, described positioning key is for making the described keyboard week relative to camshaft
To location, described fixing nut is for making the described keyboard axial location relative to camshaft.
Present invention also offers a kind of fuel injection system, including fuel pump transmission as above
Device.
(3) beneficial effect
The technique scheme of the present invention has the advantages that the fuel pump transmission of the present invention
Device includes travelling gear, mounting flange and is provided with the fuel pump of camshaft, and travelling gear is set with
Outside camshaft, to drive described cam axle, travelling gear is set in mounting flange,
And rotate relative to mounting flange, so that whole axial forces of travelling gear and major part radial force
Driving cog can be directly carried compared to existing fuel pump cam axle for delivery on mounting flange
The mounting means of wheel, effectively reduces the stress of fuel pump cam axle, improves the fortune of fuel pump
Row state, improves the service life of fuel pump；By installing radially installation on mounting flange additional
Fixture, can make travelling gear axially position when rotating relative to mounting flange, thus
When efficiently solving insufficient space, the problem that the axially mounted bolt of gear is difficult to arrange；In transmission
Install flange lining between gear and mounting flange additional, make inner peripheral surface and the outer end of this flange lining
All can form oil film on face, reduce friction loss when travelling gear rotates, it is to avoid driving cog
Direct friction between wheel and mounting flange, improves gear-driven service life.
Accompanying drawing explanation
Fig. 1 is the fuel pump drive mechanism exploded perspective view of prior art；
Fig. 2 is the exploded perspective view of the fuel pump transmission device of the embodiment of the present invention；
Fig. 3 is the installation diagram of the fuel pump transmission device of the embodiment of the present invention；
Fig. 4 is the front view of the mounting flange of the embodiment of the present invention；
Fig. 5 is the side view of the travelling gear of the embodiment of the present invention；
Fig. 6 is the rearview of the travelling gear of the embodiment of the present invention；
Fig. 7 is the side view of the flange lining of the embodiment of the present invention；
Fig. 8 is the front view of the variable diameters bolt of the embodiment of the present invention.
Wherein, 1, fuel pump；2 ', travelling gear；3 ', nut；4 ', woodruff key；1-1
Camshaft；2, pedestal；3, a keyboard；4, mounting flange；4-1, the first bolt hole；
4-2, drain pan；4-3, oil leab；5, flange lining；5-1, oilhole；5-2、
Lubrication hydraulic fluid port；5-3, the second bolt hole；6, travelling gear；6-1, oil-way；6-2、
Cross recess；7, fixing nut；8, lubricating oil pipe；9, fixture；10, positioning key.
Detailed description of the invention
With embodiment, embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings.
Following example are used for illustrating the present invention, but can not be used for limiting the scope of the present invention.
In describing the invention, except as otherwise noted, " multiple " are meant that two or two
Above.Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ",
The orientation of the instruction such as " head ", " afterbody " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description rather than instruction or hint
The device of indication or element must have specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
As shown in Figure 2 and Figure 3, the fuel pump transmission device that the present embodiment provides includes driving cog
Wheel 6, mounting flange 4 and be provided with the fuel pump 1 of camshaft 1-1, travelling gear 6 is set in convex
Outside wheel shaft 1-1, to drive camshaft 1-1 to rotate；Travelling gear 6 is set in mounting flange 4,
Travelling gear 6 rotates relative to mounting flange 4, whole axial forces of travelling gear 6 and big portion
Point radial force can be for delivery on mounting flange 4.Travelling gear 6 and fuel pump cam axle 1-1
Between only transmission fraction radial force, can effectively reduce the vibration of fuel pump 1, improve fuel pump 1
Service life.Fuel injection system in the present embodiment includes fuel pump transmission as above
Device.
The travelling gear 6 of the present embodiment is set in mounting flange 4 by the fixture 9 radially installed
In, so that travelling gear 6 is when rotating relative to mounting flange 4, can be relative to mounting flange 4
Axially location, travelling gear 6 can be that spur gear can also be for helical gear；By in fixation
Install fixture 9 additional on blue 4, travelling gear 6 can be made to carry out when rotating relative to mounting flange 4
Axially location, thus when efficiently solving insufficient space, the axially mounted bolt of gear is difficult to arrange
Problem.
In order to ensure the axially location of travelling gear 6 the most accurately, such as Fig. 4, Fig. 5 and Fig. 8
Shown in, preferably fixture 9 is variable diameters bolt, and the outer wall of mounting flange 4 is provided with the first spiral shell
Keyhole 4-1, the outer wall of travelling gear 6 is correspondingly provided with oil-way 6-1 along excircle, straightens
Footpath bolt is sequentially set in the first bolt hole 4-1 and oil-way 6-1, so that travelling gear 6
When rotating relative to mounting flange 4, axially can position relative to mounting flange 4；Lubricating oil
Lubricating oil in groove 6-1 ensure that travelling gear 6 rotate time, between outer wall and variable diameters bolt
Form tempered oil film, the rotation of travelling gear 6 will not be caused unnecessary impact.
In the present embodiment, fixture 9 is except using in addition to variable diameters bolt, it is also possible to for alignment pin,
Travelling gear 6 is loaded in mounting flange 4 by set pin sleeve, so that travelling gear 6 is relatively
When mounting flange 4 rotates, axially can position relative to mounting flange 4.Concrete, solid
Determining flange 4 and be provided with pin-and-hole, alignment pin is sequentially sleeved on pin-and-hole and travelling gear 6 outer wall
In oil-way 6-1.
Connect on the outer wall in the built-in hole of the mounting flange 4 of the present embodiment and have for travelling gear
The oil leab 4-3 of 6 conveying lubricating oil, built-in hole is additionally provided with drain pan 4-2, so that unnecessary
Lubricating oil flow out from drain pan 4-2, around built-in hole, be the most uniformly laid with installed part,
So that mounting flange 4 is fixedly mounted on the base 2.
Preferably pedestal 2 needs to select according to engine arrangement, can be body or gear chamber；
Pedestal 2 is also associated with lubricating oil pipe 8, lubricating oil pipe 8 and the oil leab 4-3 of mounting flange 4
Connect, in order to carry lubricating oil by pedestal 2 and mounting flange 4 to travelling gear 6.
As it is shown in fig. 7, be set with flange lining 5 between travelling gear 6 and mounting flange 4,
Flange lining 5 is for forming oil film between travelling gear 6 and mounting flange 4, to reduce biography
Friction loss between moving gear 6 and mounting flange 4, preferably mounting flange 4, flange lining 5
Sequentially it is set in outside camshaft 1-1 with travelling gear 6, between flange lining 5 and mounting flange 4
For interference fit, and and travelling gear 6 between be matched in clearance, by travelling gear 6 He
Install flange lining 5 between mounting flange 4 additional, make inner peripheral surface and the outer face of this flange lining 5
On all can form oil film, reduce friction loss when travelling gear 6 rotates, avoid transmission simultaneously
Circumference friction between gear 6 and mounting flange 4 and end-face friction, improve gear-driven use
Life-span.
Inner port edge at flange lining 5 is provided with lubrication hydraulic fluid port 5-2, and outer wall is provided with oilhole
5-1 and the second bolt hole 5-3, the second bolt hole 5-3 are for coordinating first on mounting flange 4
Bolt hole 4-1 mounting fixing parts 9；Oilhole 5-1 and lubrication hydraulic fluid port 5-2 is used for ensureing flange
Lining 5 all can form oil film at inner periphery and outer face, and flange lining 5 preferably employs resistance to
The alloy material of mill.
In the present embodiment, for power by travelling gear 6 to the transmitting of fuel pump 1,
It is set with a keyboard 3 outside camshaft 1-1, in travelling gear 6, is set with cross recess 6-2, such as figure
Shown in 6, travelling gear 6 is by the mating band moving cam axle 1-1 of a keyboard 3 with cross recess 6-2
Rotate；One keyboard 3 is loaded on camshaft 1-1 by positioning key 10 and fixing nut fixed cover respectively
End outside, positioning key 10 for making circumferentially positioned relative to camshaft 1-1 of a keyboard 3,
Preferred orientation key 10 is woodruff key；Fixing nut is used for making a keyboard 3 relative to camshaft 1-1
Axial location.Power sequentially passes through cross recess 6-2, a keyboard 3, location from travelling gear 6
Key 10 passes to camshaft 1-1, it is achieved the normal operation of fuel pump 1.
In the fuel pump transmission device of the present embodiment, travelling gear 6, when rotating, rotates radially
Power major part sequentially passes through flange lining 5, mounting flange 4 passes to pedestal 2；Only have fraction
Sequentially pass through cross recess 6-2, a keyboard 3 passes to camshaft 1-1.
Travelling gear 6 is when fuel pump 1, and axial force sequentially passes through flange lining 5, fixation
Blue 4 pass to pedestal 2；When travelling gear 6 deviates from fuel pump 1, axial force sequentially passes through and straightens
Footpath bolt, mounting flange 4 pass to pedestal 2.
Lubricating oil passes sequentially through on the lubricating oil pipe 8 on pedestal 2, pedestal 2, mounting flange 4
Oilhole 5-1 on oil leab 4-3, flange lining 5 arrives the lubricating oil of travelling gear 6
In groove 6-1.When travelling gear 6 rotates, a part of lubricating oil flange lining 5 inner periphery with
Form oil film between the excircle of travelling gear 6, reduce circumference friction；A part of lubricating oil leads to
Cross the lubrication hydraulic fluid port 5-2 on flange lining 5, between the end face of flange lining 5 and travelling gear 6
Form oil film, reduce axial rub；Unnecessary oil is by the drain pan 4-2 on mounting flange 4
Flow out.
In sum, the fuel pump transmission device of the present embodiment includes travelling gear 6, mounting flange
4 and be provided with the fuel pump 1 of camshaft 1-1, travelling gear 6 is set in outside camshaft 1-1, with
Camshaft 1-1 is driven to rotate；Travelling gear 6 is set in mounting flange 4, travelling gear 6
Rotating relative to mounting flange 4, whole axial forces of travelling gear 6 and major part radial force can
For delivery on mounting flange 4.Only transmit little between travelling gear 6 and fuel pump cam axle 1-1
Partially radially power, can effectively reduce the vibration of fuel pump 1, improves the service life of fuel pump 1.；
By installing the fixture 9 radially installed on mounting flange 4 additional, travelling gear 6 can be made relatively
Axially position when mounting flange 4 rotates, thus when efficiently solving insufficient space, tooth
Take turns the problem that axially mounted bolt is difficult to arrange；Add between travelling gear 6 and mounting flange 4
Dress flange lining 5, makes all to form oil film on the inner peripheral surface of this flange lining 5 and outer face,
Reduce the travelling gear 6 friction loss when rotating, it is to avoid travelling gear 6 and mounting flange 4
Between direct friction, improve gear-driven service life.
Embodiments of the invention are given for the sake of example and description, and are not nothing left
Leakage or limit the invention to disclosed form.Many modifications and variations are for this area
It is apparent from for those of ordinary skill.Selecting and describing embodiment is to more preferably illustrate
The principle of the present invention and actual application, and make those of ordinary skill in the art it will be appreciated that this
Invent thus design the various embodiments with various amendments being suitable to special-purpose.
Claims (10)
1. a fuel pump transmission device, it is characterised in that include travelling gear, mounting flange
Be provided with the fuel pump of camshaft, described travelling gear is set in outside described camshaft, to drive
Described cam axle；Described travelling gear is set in described mounting flange, and relative to institute
State mounting flange to rotate, so that whole axial forces of described travelling gear and major part radial force can
For delivery on described mounting flange.
Fuel pump transmission device the most according to claim 1, it is characterised in that described biography
Moving gear is set in described mounting flange by the fixture radially installed, so that described transmission
Gear, when rotating relative to described mounting flange, axially can position relative to described mounting flange.
Fuel pump transmission device the most according to claim 2, it is characterised in that described solid
Locking member is variable diameters bolt, and the outer wall of described mounting flange is provided with the first bolt hole, described biography
Being correspondingly provided with oil-way along excircle on the outer wall of moving gear, described variable diameters bolt sequentially overlaps
It is loaded in the first bolt hole and oil-way, so that described travelling gear is fixing relative to described
When flange rotates, axially can position relative to described mounting flange.
Fuel pump transmission device the most according to claim 2, it is characterised in that described solid
Locking member is alignment pin, and described travelling gear is loaded in described mounting flange by set pin sleeve, with
Make described travelling gear when rotating relative to described mounting flange, can be relative to described fixation
Blue axially location.
Fuel pump transmission device the most according to claim 1, it is characterised in that described biography
Being set with flange lining between moving gear and mounting flange, described flange lining is in described biography
Form oil film between moving gear and mounting flange, with reduce described travelling gear and mounting flange it
Between friction loss.
Fuel pump transmission device the most according to claim 5, it is characterised in that described solid
Determining flange, flange lining and travelling gear to be sequentially set in outside described camshaft, described flange serves as a contrast
Overlap with mounting flange between be interference fit, and and described travelling gear between be matched in clearance.
Fuel pump transmission device the most according to claim 1, it is characterised in that also include
Being set in the pedestal outside described camshaft, described mounting flange is installed on described pedestal.
8. according to the fuel pump transmission device described in any one of claim 1-7, it is characterised in that
It is set with a keyboard outside described camshaft, in described travelling gear, is set with cross recess, described biography
Moving gear coordinates the described cam axle of drive by a described keyboard with cross recessed.
Fuel pump transmission device the most according to claim 8, it is characterised in that described one
Keyboard is loaded on outside the end of described camshaft by positioning key and fixing nut fixed cover respectively, institute
State positioning key circumferentially positioned for make a described keyboard relative to camshaft, described fixing nut
For making the described keyboard axial location relative to camshaft.
10. a fuel injection system, it is characterised in that include such as any one of claim 1-9
Described fuel pump transmission device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610299375.1A CN105909437B (en) | 2016-05-06 | 2016-05-06 | A kind of fuel pump transmission device and the fuel injection system equipped with the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610299375.1A CN105909437B (en) | 2016-05-06 | 2016-05-06 | A kind of fuel pump transmission device and the fuel injection system equipped with the device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105909437A true CN105909437A (en) | 2016-08-31 |
| CN105909437B CN105909437B (en) | 2018-11-23 |
Family
ID=56748598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610299375.1A Active CN105909437B (en) | 2016-05-06 | 2016-05-06 | A kind of fuel pump transmission device and the fuel injection system equipped with the device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105909437B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800258A (en) * | 2018-08-07 | 2018-11-13 | 珠海格力电器股份有限公司 | Connecting structure of oil smoke separation net and driving device and range hood |
| CN110206868A (en) * | 2019-06-29 | 2019-09-06 | 潍柴动力股份有限公司 | A kind of gear assembly and engine |
| CN112065624A (en) * | 2020-09-10 | 2020-12-11 | 潍柴动力股份有限公司 | High-pressure oil pump mounting method, engine and vehicle |
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| CN2890392Y (en) * | 2006-02-08 | 2007-04-18 | 一汽解放汽车有限公司无锡柴油机分公司 | Electrically-controlled common-tail diesel engine injection-pump mounting structure |
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| CN103266972A (en) * | 2013-05-27 | 2013-08-28 | 安徽江淮汽车股份有限公司 | High pressure fuel pump driving structure |
| CN103603759A (en) * | 2013-11-15 | 2014-02-26 | 宁波富莱茵汽车部件有限公司 | Phase difference transmission system of engine fuel injection pump |
| WO2015084233A1 (en) * | 2013-12-05 | 2015-06-11 | Scania Cv Ab | Drive arrangement for a fuel pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE4430908A1 (en) * | 1994-08-31 | 1996-03-07 | Bosch Gmbh Robert | IC engine fuel injection pump |
| WO2000058640A1 (en) * | 1999-03-29 | 2000-10-05 | Robert Bosch Gmbh | Coupling and fuel delivery pump with a coupling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800258A (en) * | 2018-08-07 | 2018-11-13 | 珠海格力电器股份有限公司 | Connecting structure of oil smoke separation net and driving device and range hood |
| CN110206868A (en) * | 2019-06-29 | 2019-09-06 | 潍柴动力股份有限公司 | A kind of gear assembly and engine |
| CN110206868B (en) * | 2019-06-29 | 2024-04-16 | 潍柴动力股份有限公司 | Gear assembly and engine |
| CN112065624A (en) * | 2020-09-10 | 2020-12-11 | 潍柴动力股份有限公司 | High-pressure oil pump mounting method, engine and vehicle |
| CN112065624B (en) * | 2020-09-10 | 2021-10-08 | 潍柴动力股份有限公司 | High-pressure oil pump mounting method, engine and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105909437B (en) | 2018-11-23 |
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