CN205936908U - Automatically controlled engine fuel oil system - Google Patents
Automatically controlled engine fuel oil system Download PDFInfo
- Publication number
- CN205936908U CN205936908U CN201620728649.XU CN201620728649U CN205936908U CN 205936908 U CN205936908 U CN 205936908U CN 201620728649 U CN201620728649 U CN 201620728649U CN 205936908 U CN205936908 U CN 205936908U
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- Prior art keywords
- oil
- fuel
- pump
- filter
- electric
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- Expired - Fee Related
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- 239000000295 fuel oil Substances 0.000 title claims abstract description 42
- 239000000446 fuel Substances 0.000 claims abstract description 68
- 239000003921 oil Substances 0.000 claims abstract description 45
- 239000002828 fuel tank Substances 0.000 claims description 19
- 238000010992 reflux Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract 2
- 238000011045 prefiltration Methods 0.000 abstract 2
- 239000002699 waste material Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 coarse filter Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007907 direct compression Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to a fuel feed system technical field especially relates to an automatically controlled engine fuel oil system. This automatically controlled engine fuel oil system includes consecutive oil tank, fuel prefilter, petroleum pump, fuel precision filter and high -pressure oil pump fuel prefilter's oil -out with be equipped with the check valve on the conveying line between the petroleum pump fuel precision filter's oil -out with be equipped with the overflow valve on the conveying line between the high -pressure oil pump, the overflow valve pass through return line with the oil tank links to each other. This automatically controlled engine fuel oil system can effectively solve current engine and because intake air causes the problem of engine start difficulty, improve engine start performance and effect, improves engine low -voltage distribution network's air discharge performance, and it is extravagant to reduce environmental pollution and fuel.
Description
Technical field
This utility model is related to fuel oil supply system technical field, more particularly, to a kind of electric-control motor fuel system.
Background technology
Available engine fuel system, is mainly made up of fuel tank, coarse filter, oil transfer pump, fine filter, high-pressure oil pump.Existing
Engine fuel oil system operationally, due to fuel oil fitering element in filter process be subject to filter element drag effect, can not in filter element
It is completely filled with fuel oil, therefore have portion gas and exist in fuel oil fitering element.Gas after engine stop runs, in low pressure line
Being changed by ambient pressure is affected, and the air pressure balance of whole pipeline can be led to change, and the flowing of gas can drive fuel oil
Flowing, the fuel oil of high point can flow in the fuel filter of lower so that gassy in low pressure line.And electromotor is again
More much longer than the time that the liquid of compression same volume forms equal pressure due to compressing the gas of same volume during secondary startup, cause
Common rail pipe builds pressure slowly, thus affecting the starting time of electromotor, causes engine start difficult.Meanwhile, existing electromotor row
In addition to the oil return valve that the pump oil pressure height of fuel and electric motor pump can open high-pressure oil pump, remaining hand gear needs to open certain gas
The hollow bolt of low pressure line, will certainly cause the outflow of fuel oil when being exhausted, thus causing waste and the environment of resource
Pollution.
Utility model content
(1) technical problem to be solved
The purpose of this utility model is to provide a kind of electric-control motor fuel system, solves available engine empty due to sucking
Gas causes engine start difficult, because the bolt looseness of low pressure line causes fuel oil to overflow, causes environmental pollution and resource wave
The problem taken.
(2) technical scheme
In order to solve above-mentioned technical problem, this utility model provides a kind of electric-control motor fuel system, including successively
Connected fuel tank, fuel preliminary filter, oil transfer pump, secondary fuel oil filter and high-pressure oil pump, in the oil-out of described fuel preliminary filter
Transfer pipeline and described oil transfer pump between is provided with check valve, in oil-out and the described high-pressure oil pump of described secondary fuel oil filter
Between transfer pipeline be provided with overflow valve, described overflow valve is connected with described fuel tank by reflux pipe.
Specifically, described fuel preliminary filter includes one-level fuel preliminary filter and two grades of fuel preliminary filters, the going out of described fuel tank
Hydraulic fluid port is connected with the oil-in of described one-level fuel preliminary filter, the oil-out of described one-level fuel preliminary filter and described two grades of fuel oils
The oil-in of coarse filter is connected, and the oil-out of described two grades of fuel preliminary filters is connected with described check valve.
Specifically, described high-pressure oil pump includes the first oil-out and the second oil-out, wherein said first oil-out and institute
State fuel tank to be connected.
Further, described electric-control motor fuel system also includes common rail pipe, the oil-in of described common rail pipe and institute
The second oil-out stating high-pressure oil pump is connected.
Further, described electric-control motor fuel system also includes fuel injector, the oil-in of described fuel injector and institute
The oil-out stating common rail pipe is connected, and the oil-out of described fuel injector is connected with described fuel tank.
(3) beneficial effect
Technique scheme of the present utility model has the advantage that：
The electric-control motor fuel system that this utility model provides, in oil-out and the electric-control motor of fuel preliminary filter
Increase a check valve, the combustion after each vehicle stall, in secondary fuel oil filter, oil transfer pump and transfer pipeline between oil transfer pump
Oil, under the sealing process of check valve, retains in the original location without being back in fuel preliminary filter so that not having in transfer pipeline
There is gas, thus in next start-up course, oil transfer pump, because direct compression fuel oil is such that it is able to quickly set up rail pressure, is protected
The startability of card electromotor.
The electric-control motor fuel system that this utility model provides, the transfer pipeline connecting in the oil-out of secondary fuel oil filter
One overflow valve of upper increase, this overflow valve is connected with fuel tank by reflux pipe, thus ensureing the backflow of fuel oil, is being exhausted
The hollow bolt that Shi Bubi unclamps in pipeline is exhausted, but allows gas and fuel oil be passed straight back to fuel tank, and then ensure that
The aerofluxuss of pipeline, decrease waste and the pollution to environment of fuel oil, decrease the numerous and diverse of vent sequence simultaneously.
Brief description
Fig. 1 is the structural representation of this utility model embodiment electric-control motor fuel system.
In figure：1：First transfer pipeline；2：Second transfer pipeline；3：Reflux pipe.
Specific embodiment
Purpose, technical scheme and advantage for making this utility model embodiment are clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described it is clear that being retouched to the technical scheme in this utility model embodiment
The embodiment stated is a part of embodiment of the present utility model, rather than whole embodiments.Based on the reality in this utility model
Apply example, the every other embodiment that those of ordinary skill in the art are obtained on the premise of not making creative work, all
Belong to the scope of this utility model protection.
The startability of impact electric-control motor mainly has following several factor：
Firstth, electromotor is dragged to certain rotating speed by starter motor；
Secondth, the tach signal of electric-control motor and camshaft signal are synchronous；
3rd, the rail pressure of electromotor will reach the setting value of system.
Wherein, as long as first and second kinds of electromotors ensure that in design and assembling, the later stage does not interfere with startability
Energy.But the third is that the dissolubility with the step-down gas of air pressure diminishes, and is starting because gas is dissolved in any liquid
Have portion gas in the presence of machine low pressure line negative pressure to separate out, if pipeline sealing simultaneously is bad will also result in entering of gas
Enter.And on electric-control motor startability affect maximum is the gas in low pressure line, particularly before oil transfer pump and in oil transfer pump
Gas.When oil transfer pump is when compressing to common rail pipe fuel feeding, recompresses fuel oil after first compressed air, cause to the fuel feeding of common rail pipe
Amount wretched insufficiency starts required rail pressure it is impossible to reach, thus causing the difficult startup of electromotor.
Purport of the present utility model is to solve in electromotor low pressure oil way because the air that a variety of causes causes gathers, and enters
And make electromotor suck air and cause engine start difficult problem, improve the aerofluxuss of electromotor low pressure oil way simultaneously, reduce by
The pollution causing to environment in the spilling that bolt looseness causes fuel oil, and reduce the waste of fuel oil.
Below specific embodiment is described in detail to the technical solution of the utility model.
As shown in figure 1, the electric-control motor fuel system that this utility model embodiment provides, including the oil being sequentially connected
Case, fuel preliminary filter, oil transfer pump, secondary fuel oil filter and high-pressure oil pump, defeated with described in the oil-out of described fuel preliminary filter
The first transfer pipeline 1 between oil pump is provided with check valve, described secondary fuel oil filter oil-out and described high-pressure oil pump it
Between the second transfer pipeline 2 be provided with overflow valve, described overflow valve is connected with described fuel tank by reflux pipe 3.
The electric-control motor fuel system that this utility model embodiment provides, increases between fuel preliminary filter and oil transfer pump
The check valve of cascaded structure, passes through because check valve has only operation liquid or gas one direction, and does not allow to think from opposite direction
The characteristic passed through, described check valve overcomes the diffusion to area of low pressure for the high-pressure gas from principle, encloses gas and liquid
The refluence of body so that fuel oil is enclosed in oil transfer pump in the space of secondary fuel oil filter, the disturbance without gas and whole pipeline
Full of fuel oil it is ensured that the startup effect of next time, and then improve the startability of electric-control motor.
The electric-control motor fuel system that this utility model embodiment provides, connects in secondary fuel oil filter oil-out simultaneously
One overflow valve is increased on the second transfer pipeline 2, described overflow valve connects fuel tank by reflux pipe 3, ensure that gas exists
Flowed back by overflow valve under certain pressure so that the hollow bolt that need not unclamp in pipeline during aerofluxuss is exhausted, allow gas and
Fuel oil is passed straight back to fuel tank, thus ensure that the aerofluxuss of pipeline, decreases waste and the pollution to environment of fuel oil, simultaneously
Decrease numerous and diverse operation of vent sequence.
Wherein, described fuel preliminary filter includes one-level fuel preliminary filter and two grades of fuel preliminary filters, described fuel tank fuel-displaced
Mouth is connected with the oil-in of described one-level fuel preliminary filter, and the oil-out of described one-level fuel preliminary filter is thick with described two grades of fuel oils
The oil-in of filter is connected, and the oil-out of described two grades of fuel preliminary filters is connected with described check valve.By arranging two-stage fuel oil
Coarse filter, can effectively filter out the impurity in fuel oil, improve filtering accuracy, reduce the gas of the residual in fuel oil, reduce low pressure
The impact of gas in pipeline, further increases the startability of electromotor.
Wherein, described high-pressure oil pump includes the first oil-out and the second oil-out, wherein said first oil-out with described
Fuel tank is connected.
Furthermore, it is understood that described electric-control motor fuel system also includes common rail pipe, the oil-in of described common rail pipe with
Second oil-out of described high-pressure oil pump is connected.
Further, described electric-control motor fuel system also includes fuel injector, the oil-in of described fuel injector and institute
The oil-out stating common rail pipe is connected, and the oil-out of described fuel injector is connected with described fuel tank.
In sum, electric-control motor fuel system described in the utility model, by fuel preliminary filter with automatically controlled
Between the oil transfer pump of motivation, one check valve of series connection, being prevented effectively from being emptied of oil transfer pump, thus reaching the purpose of fast run-up pressure, entering
And improve the startability of electromotor；By arranging an overflow valve on the oil-out transfer pipeline of secondary fuel oil filter, improve
The aerofluxuss of electromotor low pressure oil way, reduce the pollution causing due to the spilling that bolt looseness causes fuel oil to environment, reduce fuel oil
Waste, simultaneously reduce vent sequence numerous and diverse operation.
In description of the present utility model, it should be noted that unless otherwise stated, term " first ", " second " etc. are only
For descriptive purposes, and it is not intended that indicating or hint relative importance.
In addition it is also necessary to explanation in description of the present utility model, unless otherwise clearly defined and limited, term " is pacified
Dress ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly
Connect；Can be to be mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary.
For the ordinary skill in the art, the visual concrete condition above-mentioned term of understanding specifically containing in this utility model
Justice.
Finally it should be noted that：Above example only in order to the technical solution of the utility model to be described, is not intended to limit；
Although being described in detail to this utility model with reference to the foregoing embodiments, it will be understood by those within the art that：
It still can be modified to the technical scheme described in foregoing embodiments, or wherein some technical characteristics are carried out etc.
With replacement；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this utility model each embodiment technology
The spirit and scope of scheme.
Claims (5)
1. a kind of electric-control motor fuel system, including the fuel tank being sequentially connected, fuel preliminary filter, oil transfer pump, secondary fuel oil filter
And high-pressure oil pump it is characterised in that：On the transfer pipeline between the oil-out and described oil transfer pump of described fuel preliminary filter
It is provided with check valve, the transfer pipeline between the oil-out and described high-pressure oil pump of described secondary fuel oil filter is provided with overflow valve,
Described overflow valve is connected with described fuel tank by reflux pipe.
2. electric-control motor fuel system according to claim 1 it is characterised in that：Described fuel preliminary filter includes one-level
Fuel preliminary filter and two grades of fuel preliminary filters, the oil-out of described fuel tank is connected with the oil-in of described one-level fuel preliminary filter,
The oil-out of described one-level fuel preliminary filter is connected with the oil-in of described two grades of fuel preliminary filters, described two grades of fuel preliminary filters
Oil-out be connected with described check valve.
3. electric-control motor fuel system according to claim 1 it is characterised in that：Described high-pressure oil pump includes first and goes out
Hydraulic fluid port and the second oil-out, wherein said first oil-out is connected with described fuel tank.
4. electric-control motor fuel system according to claim 3 it is characterised in that：Also include common rail pipe, described common rail
The oil-in of pipe is connected with the second oil-out of described high-pressure oil pump.
5. electric-control motor fuel system according to claim 4 it is characterised in that：Also include fuel injector, described oil spout
The oil-in of device is connected with the oil-out of described common rail pipe, and the oil-out of described fuel injector is connected with described fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620728649.XU CN205936908U (en) | 2016-07-12 | 2016-07-12 | Automatically controlled engine fuel oil system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620728649.XU CN205936908U (en) | 2016-07-12 | 2016-07-12 | Automatically controlled engine fuel oil system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205936908U true CN205936908U (en) | 2017-02-08 |
Family
ID=57927958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620728649.XU Expired - Fee Related CN205936908U (en) | 2016-07-12 | 2016-07-12 | Automatically controlled engine fuel oil system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205936908U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837642A (en) * | 2017-02-17 | 2017-06-13 | 广西玉柴机器股份有限公司 | A kind of electric-controlled co-rail engine quick start method |
| WO2018149160A1 (en) * | 2017-02-17 | 2018-08-23 | 广西玉柴机器股份有限公司 | Activation method utilized in electrically controlled common rail engine |
| CN111946523A (en) * | 2020-08-17 | 2020-11-17 | 成都纵横大鹏无人机科技有限公司 | Unmanned aerial vehicle starting system and starting method thereof |
| CN113074068A (en) * | 2021-04-02 | 2021-07-06 | 浙江吉利控股集团有限公司 | Fuel supply system for vehicle, control method of fuel supply system and vehicle |
-
2016
- 2016-07-12 CN CN201620728649.XU patent/CN205936908U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837642A (en) * | 2017-02-17 | 2017-06-13 | 广西玉柴机器股份有限公司 | A kind of electric-controlled co-rail engine quick start method |
| WO2018149161A1 (en) * | 2017-02-17 | 2018-08-23 | 广西玉柴机器股份有限公司 | Rapid activation method utilized in electrically controlled common rail engine |
| WO2018149160A1 (en) * | 2017-02-17 | 2018-08-23 | 广西玉柴机器股份有限公司 | Activation method utilized in electrically controlled common rail engine |
| EP3550137A4 (en) * | 2017-02-17 | 2020-01-01 | Guangxi Yuchai Machinery Group Co., Ltd. | Rapid activation method utilized in electrically controlled common rail engine |
| CN111946523A (en) * | 2020-08-17 | 2020-11-17 | 成都纵横大鹏无人机科技有限公司 | Unmanned aerial vehicle starting system and starting method thereof |
| CN113074068A (en) * | 2021-04-02 | 2021-07-06 | 浙江吉利控股集团有限公司 | Fuel supply system for vehicle, control method of fuel supply system and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |