CN207686886U - The fuel filter of high-efficiency exhaust - Google Patents
The fuel filter of high-efficiency exhaust Download PDFInfo
- Publication number
- CN207686886U CN207686886U CN201721865553.9U CN201721865553U CN207686886U CN 207686886 U CN207686886 U CN 207686886U CN 201721865553 U CN201721865553 U CN 201721865553U CN 207686886 U CN207686886 U CN 207686886U
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- China
- Prior art keywords
- filter
- fuel
- filter core
- connecting plate
- oil
- 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.)
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Abstract
The utility model discloses a kind of fuel filters of high-efficiency exhaust, including：Shell, flange mounting surface is provided on the shell, and fuel filter is arranged on the oil circuit of fuel tank to oil pump for engine by filter block for connecting filter block for flange mounting surface；Filter core；Diversion pipe, is fixed on the middle of filter core, and the upper end of diversion pipe circumferentially offers multiple through-holes；Connecting plate is set to the top of filter core, and fuel feed hole is provided on connecting plate, and fuel oil can enter the inside of filter core by fuel feed hole；Venting plug is provided with multiple sintered copper holes, and venting plug is arranged in the position between connecting plate and filter core, for the air before fuel filter to be discharged；And spring, the bottom of filter core is set to fix filter core.The fuel filter structure of the utility model is compact, versatility is good, reliability is high, significantly improves the exhaust effect of air in fuel oil, to solve the problems, such as that engine easily occurs running flame-out and hard-to-start in the prior art.
Description
Technical field
The utility model belongs to technical field of engines, is related to a kind of fuel filter of high-efficiency exhaust.
Background technology
It is well known that in order to ensure the high-precisions parts such as injection pump in engine fuel oil system, fuel injector, fuel nozzle
Not by the impurity of fuel oil wear, avoid engine performance export be affected, therefore engine all can on fuel pipe cloth
Set one or several fuel filters.The effect of fuel filter be by filter inside filter paper, to miscellaneous in fuel oil
Matter is filtered, it is ensured that above-mentioned part will not be blocked or wear by flowing into injection pump and particle in fuel injector and impurity；To carry
The service life of high above-mentioned parts.
In three standard period of complete machine emission level state of enforcement, since engine emission levels are low, when fuel system works, spray
The operating pressure of oil system is not above 1200bar.This precision and combustion to injection pump of engine, fuel injector inner couplings part
Luboil cleanness requires also not high.Engine fuel oil system parts can adapt to by the filtered fuel oil product of plain filter
Matter.In this case, the filtering requirement of combustion well cuts, large particulate matter is sufficient as long as fuel filter can meet.
The filter cartridge construction of fuel filter is simple, and the filter paper venting capability used can be very strong.In engine operation process intermediate fuel oil
Air in system can be easy to be drained, will not be because gathering many air in oil circuit, and engine operation is caused to stop working
Problem.
However, as environmental requirement is higher and higher, emission regulation is more and more tighter, the operating pressure of engine fuel oil system
It is continuously improved, is gradually promoted to 1800-2000bar at present.In order to adapt to high operating pressure, injection pump of engine and oil spout
The inner couplings part precision of device is also higher and higher.This just proposes higher to fuel filter to the filtering requirement of impurity in fuel
Requirement.Because some tiny particles and impurity may cause entire fuel system to block, engine work is influenced.
And fuel filter needs the consistency for increasing filter paper, to reduce the logical of molecule to improve the filtering to fine particle
The property crossed.After filter paper consistency is promoted, the gas permeability between filter paper just reduces, to cause the air in filter to be not easy meeting
Discharge.And if air is cumulative in fuel system, the amount of fuel that will result in into engine tails off, to cause to send out
There is operation and stops working and hard-to-start phenomenon in motivation.
If Fig. 1 is prior art fuel filter internal structure chart.When fuel oil enters filter, directly by filter core one end
By filtering, into inside filter core.In the low emission stage, filter core gas permeability is strong, and the air in fuel oil is easy to pass through filter paper.No
Air can be caused to occur accumulation problem inside filter, oil circuit is caused short circuit problem occur.But it is right as emission request upgrades
The filtering requirement of filter paper is higher and higher, and the gas permeability of filter paper is worse and worse.Caused consequence is exactly to be released in fuel oil
Air cannot be constantly accumulated in quickly through filter paper in the space between filter paper outer end and shell.Air meeting in cumulative process
Fuel level is pushed, causes to tail off by the amount of fuel of filter paper in the unit interval, and one is formed in the filtered cavity of filter paper
Fixed vacuum degree.After air is accumulated to a certain extent, the filtered chamber vacuum degree of filter paper can hinder the normal fuel injection of oil pump,
The amount of fuel for causing entry into oil pump tails off even without to cause engine operation flame-out.In addition, being acted in fuel pressure
Under, a part of gas before filtering can press through filter paper by pressure, after this partial air is by filter paper, can assemble to form a glob of sky
Gas.If there is agglomerate air continuously enters in oil pump, engine will run flame-out because of oil pump oil starvation.If it is in engine
After shutdown, there is agglomerate air to enter oil pump, when starting engine next time, inside the oil pump or in oil pipe full of air due to can not
It is normal to start.
The information for being disclosed in the background technology part is merely intended to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition has been existing well known to persons skilled in the art
Technology.
Utility model content
The purpose of this utility model is to provide a kind of fuel filters of high-efficiency exhaust, to overcome the combustion of the prior art
Air in oil rectifier be not easy to be discharged so as to cause engine easily there is the problem of flame-out operation and hard-to-start.
To achieve the above object, the utility model provides a kind of fuel filter of high-efficiency exhaust, including：Shell, should
Flange mounting surface is provided on shell, fuel filter is arranged in fuel tank for connecting filter block, by filter block for flange mounting surface
Onto the oil circuit of oil pump for engine；Filter core；Diversion pipe, is fixed on the middle of filter core, and the upper end of diversion pipe circumferentially opens up
There are multiple through-holes；Connecting plate is set to the top of filter core, fuel feed hole is provided on connecting plate, and fuel oil can by fuel feed hole
Into the inside of filter core；Venting plug, is provided with multiple sintered copper holes, and venting plug is arranged in the position between connecting plate and filter core
It sets, for the air before fuel filter to be discharged；And spring, the bottom of filter core is set to fix filter core.
Preferably, in above-mentioned technical proposal, lower end and the filter core bottom of diversion pipe maintain a certain distance.
Preferably, in above-mentioned technical proposal, connecting plate is steel stamping part, and fastening thread is provided on connecting plate, to
Connecting plate is connected with filter block by crossing oil draining bolt.
Preferably, in above-mentioned technical proposal, fuel filter is additionally provided with sealing ring, between seal casinghousing and filter block
Fuel oil.
Preferably, in above-mentioned technical proposal, connecting plate, filter core, spring and shell constitute fuel filter front cavity；Connection
Plate, venting plug, diversion pipe and filter core constitute fuel filter rear chamber.
Compared with prior art, the utility model has the advantages that：
The fuel filter of the high-efficiency exhaust of the utility model significantly improves combustion by the setting of venting plug and diversion pipe
The exhaust effect of air in oil will not form large volume bubble and enter in fuel pump, to solve engine in the prior art
Easily there is the problem of flame-out operation and hard-to-start；The fuel filter versatility of the utility model is good, reliability is high, adaptability
By force, it is easily assembled, flexible arrangement, the installation site of fuel filter can be adjusted according to complete machine layout feature, entire to filter
The shape of clear device can be arranged according to complete machine to be needed to carry out various variation.The fuel filter of the utility model is additionally provided with installation
Filter is arranged on the oil circuit of fuel tank to oil pump for engine by filter block for installing filter block, can ensure that fuel oil by flange face
When being filtered by fuel filter, the air in fuel oil can run through filter, without being accumulated in oil circuit, to ensure
Oil pump systems are not in be emptied problem.
Description of the drawings
Fig. 1 is the air circulation route schematic diagram of the fuel filter of the prior art；
Fig. 2 is that the fuel filter of the high-efficiency exhaust of one embodiment according to the present utility model is equipped with the outer of filter block
Shape front view；
Fig. 3 is that the fuel filter of the high-efficiency exhaust of one embodiment according to the present utility model is equipped with the outer of filter block
Shape vertical view；
Fig. 4 is the structural schematic diagram of the fuel filter of the high-efficiency exhaust of one embodiment according to the present utility model；
Fig. 5 is that the air circulation route of the fuel filter of the high-efficiency exhaust of one embodiment according to the present utility model shows
It is intended to.
Main appended drawing reference explanation：
1- shells, 2- filter cores, 3- diversion pipes, 4- connecting plates, 5- venting plugs, 6- springs, 7- sealing rings, 8- filter blocks, 9- are empty
Current path line, 10- oil inlets mark, 11- oil outlets mark.
Specific implementation mode
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
Novel protection domain is not restricted by specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its change
It changes such as "comprising" or " including " etc. and will be understood to comprise stated element or component, and do not exclude other members
Part or other component parts.
As shown in figure 4, the fuel filter of the high-efficiency exhaust of the utility model includes：Shell 1, diversion pipe 3, connects filter core 2
Fishplate bar 4, venting plug 5, spring 6 and sealing ring 7.
As Figure 2-3, flange mounting surface is provided on shell 1, flange mounting surface passes through filter block 8 for connecting filter block 8
Fuel filter is arranged on the oil circuit of fuel tank to oil pump for engine.Diversion pipe 3 is packaged on filter core 2, is fixed on filter core 2
Middle, diversion pipe 3 are the conduits communicated before and after one, and the upper end of diversion pipe 3 circumferentially offers multiple through-holes, diversion pipe 3
Lower end and filter core bottom maintain a certain distance.Connecting plate 4 is set to the top of filter core 2, and oil inlet is provided on connecting plate 4
Hole, fuel oil can enter the inside of filter core 2 by fuel feed hole.Multiple sintered copper holes are provided on venting plug 5, venting plug 5 is arranged
Position between connecting plate 4 and filter core 2 is easy since venting plug is arranged in filter front position by the sky before fuel filter
Gas is discharged.Spring 6 is set to the bottom of filter core 2, to give 2 one pretightning forces of filter core so that filter core can be fixed in shell 1
It does not shake.
Specifically, connecting plate 4 is steel stamping part, and fastening thread is provided on connecting plate, thus will by crossing oil draining bolt
Connecting plate is connected with filter block.Fuel filter is additionally provided with sealing ring 7, for the fuel oil between seal casinghousing 1 and filter block 8.
Connecting plate 4, filter core 2, spring 8 and shell 1 constitute fuel filter front cavity；Connecting plate 4,2 structure of venting plug 5, diversion pipe 3 and filter core
At fuel filter rear chamber.8 upper end of filter block is additionally provided with fuel oil oil inlet mark 10 and fuel oil oil outlet 11 identifies.
As shown in figure 5, the air circulation route schematic diagram of the fuel filter due to the high-efficiency exhaust of the utility model.By
Venting plug 5 and diversion pipe 3 are disposed with inside fuel filter.Therefore, when air enters fuel filter with fuel oil, a part
Air is drained by the sintered copper hole of venting plug, it is a part of then with fuel oil into filter core 2 filter, into filtered oil
Chamber.And the air of back oil pocket is filtered, it can be assembled to upper end by Effects of Density.But since the fuel filter of the utility model is set
It is equipped with diversion pipe 3, the air that this moiety aggregation gets up once will not be entered oil pump by filter, but by water conservancy diversion 3
Multiple tiny through-holes that end week sets up enter in oil pump together followed by fuel oil.Arrange the mesh of these tiny through-holes
Be exactly in order to which agglomerate bubble to be dispersed as to bubble tiny one by one, the tiny bubble broken up can be easy to circulate combustion again
In oil, this fuel oil containing tiny bubble enters oil pump, will not run and impact to engine, thus will not make
At engine misses.
As Figure 2-3, the fuel filter of the utility model high-efficiency exhaust is fixed on by being connect with filter block 8
On engine, vehicle fuel tank and oil pump for engine are linked into an integrated entity by oil pipe.The installation position of high-efficiency exhaust fuel filter
Setting can be adjusted according to complete machine layout feature.It should be understood that the shape of above-mentioned fuel filter is merely exemplary
And not restrictive, the shape of the fuel filter of the utility model can arrange according to complete machine and need to carry out various variation.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
Many change and variations.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can realize and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (5)
1. a kind of fuel filter of high-efficiency exhaust, which is characterized in that including：
Shell is provided with flange mounting surface on the shell, and the flange mounting surface is for connecting filter block, by the filter block by institute
Fuel filter is stated to be arranged on the oil circuit of fuel tank to oil pump for engine；
Filter core；
Diversion pipe, is fixed on the middle of the filter core, and the upper end of the diversion pipe circumferentially offers multiple through-holes；
Connecting plate is set to the top of the filter core, and fuel feed hole is provided on the connecting plate, and fuel oil passes through the fuel feed hole
The inside of the filter core can be entered；
Venting plug, is provided with multiple sintered copper holes, and the venting plug is arranged between the connecting plate and the filter core
Position, for the air before the fuel filter to be discharged；And
Spring is set to the bottom of the filter core with the fixation filter core.
2. fuel filter according to claim 1, which is characterized in that the lower end of the diversion pipe is kept with filter core bottom
There is a certain distance.
3. fuel filter according to claim 1, which is characterized in that the connecting plate is steel stamping part, the company
Fastening thread is provided on fishplate bar, to which the connecting plate be connected with the filter block by crossing oil draining bolt.
4. fuel filter according to claim 1, which is characterized in that the fuel filter is additionally provided with sealing ring,
For sealing the fuel oil between the shell and the filter block.
5. fuel filter according to claim 1, which is characterized in that the connecting plate, filter core, spring and shell are constituted
Fuel filter front cavity；The connecting plate, venting plug, diversion pipe and filter core constitute fuel filter rear chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721865553.9U CN207686886U (en) | 2017-12-27 | 2017-12-27 | The fuel filter of high-efficiency exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721865553.9U CN207686886U (en) | 2017-12-27 | 2017-12-27 | The fuel filter of high-efficiency exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207686886U true CN207686886U (en) | 2018-08-03 |
Family
ID=62992904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721865553.9U Expired - Fee Related CN207686886U (en) | 2017-12-27 | 2017-12-27 | The fuel filter of high-efficiency exhaust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207686886U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939572A (en) * | 2017-12-27 | 2018-04-20 | 广西玉柴机器股份有限公司 | The fuel filter of high-efficiency exhaust |
| CN113482816A (en) * | 2021-08-16 | 2021-10-08 | 一汽解放汽车有限公司 | Fuel filter |
-
2017
- 2017-12-27 CN CN201721865553.9U patent/CN207686886U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939572A (en) * | 2017-12-27 | 2018-04-20 | 广西玉柴机器股份有限公司 | The fuel filter of high-efficiency exhaust |
| CN113482816A (en) * | 2021-08-16 | 2021-10-08 | 一汽解放汽车有限公司 | Fuel filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20211227 |