CN109372668A - A kind of novel diesel fuel filter - Google Patents
A kind of novel diesel fuel filter Download PDFInfo
- Publication number
- CN109372668A CN109372668A CN201811580276.6A CN201811580276A CN109372668A CN 109372668 A CN109372668 A CN 109372668A CN 201811580276 A CN201811580276 A CN 201811580276A CN 109372668 A CN109372668 A CN 109372668A
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- China
- Prior art keywords
- prefilter
- mounting base
- filter
- oil
- diesel fuel
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Classifications
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- 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
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
Abstract
The present invention provides a kind of novel diesel fuel filter, it includes filter block sub-unit, prefilter, fine filter, pre-flock mounting base and refined filtration mounting base are provided on the filter block sub-unit, the prefilter is installed in the pre-flock mounting base, and the fine filter is installed in the refined filtration mounting base；Oil inlet on the filter block sub-unit is connect with the oiler of the prefilter, there are two oil circuits for setting in parallel between the oil outlet of the prefilter and the oiler of the fine filter, it is provided with first check valve on one of them described oil circuit, an oil pump is provided on another described oil circuit；The oil outlet of the fine filter is connect with a flowline, and a second one-way valve is provided on the flowline.The present invention is by being integrated in prefilter and fine filter on the same filter block sub-unit, not only connection and reasonable arrangement, compact-sized, but also can reduce cost and reduce the resistance of fuel system.
Description
[technical field]
The present invention relates to fuel oil filtering system fields, and in particular to a kind of novel diesel fuel filter.
[background technique]
In general fuel oil filtering system, diesel fuel filter has prefilter and two kinds of fine filter, and prefilter was mainly used for
Filter large granular impurity and water, fine filter main filtration little particle impurity.Generally, fine filter and prefilter are two portions separated
Part, and the downstream of prefilter is arranged in fine filter.In addition it is usually provided with hand oil pump on prefilter, is mainly used for replacing filtering
The air in pipeline is discharged to outside fuel system when device, guarantees to be full of fuel oil in system.Current prefilter and fine filter is main
There are two disadvantages.First, prefilter is arranged apart with fine filter, need to use piping connection between the two, not only cost is relatively high,
And the comparison of resistance of fuel system is high.Second, prefilter with fine filter is arranged apart that greater room is needed to be arranged, structure
It is not compact enough.Third, needing people to press using hand oil pump, automatic-discharging function cannot be realized well, if in fuel system
There is air, without pressing, may shine into engine start not.
[summary of the invention]
It is an object of the invention to: for the problems in background technique, a kind of novel diesel fuel filter is provided, is passed through
Prefilter and fine filter are integrated on the same filter block sub-unit, not only connection and reasonable arrangement, compact-sized, but also can reduce into
Sheet and the resistance for reducing fuel system.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of novel diesel fuel filter, wherein including filter block sub-unit, prefilter, fine filter, the filter block sub-unit
On be provided with pre-flock mounting base and refined filtration mounting base, the prefilter is installed in the pre-flock mounting base, fine filter peace
Loaded in the refined filtration mounting base；Oil inlet on the filter block sub-unit is connect with the oiler of the prefilter, described pre-
Setting is set on one of them described oil circuit there are two oil circuit in parallel between the oil outlet of filter and the oiler of the fine filter
It is equipped with first check valve, an oil pump is provided on another described oil circuit；The oil outlet of the fine filter and one go out
Oil pipe connects, and is provided with a second one-way valve on the flowline.
It advanced optimizes, the oil pump is electronic pump.
Further optimize, the electronic pump has the function of energization timing and automatically powers off.
Further optimize, first check valve is plunger check valve, and the second one-way valve is diaphragm check valve.
Further optimize, the bottom of the prefilter is provided with a water accumulating cup, and the filter core of the prefilter obtains
Water be discharged into the water accumulating cup and be collected；A liquid level sensor is provided in the water accumulating cup, and the water accumulating cup is set
It is equipped with a discharging valve.
Further optimize, the water accumulating cup is transparent cup body.
The pre-flock mounting base and refined filtration mounting base are provided with screw hole, the upper end of the prefilter by external screw thread with it is described
The screw hole of pre-flock mounting base is engaged connection, and the upper end of the fine filter passes through the screw hole of external screw thread and the refined filtration mounting base
It is engaged connection.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, the present invention is by being integrated in prefilter and fine filter on the same filter block sub-unit, thus shorten prefilter with
The pipeline connected between fine filter reduces occupied space, is conveniently installed on engine, not only connection and reasonable arrangement, compact-sized,
And it can reduce cost and reduce the resistance of fuel system.
2, oil pump of the invention is that electronic pump does not just need manually to press operation if there is air in fuel system, can be very
Good realization automatic-discharging function, to guarantee that engine can smoothly start.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram of novel diesel fuel filter of the invention；
Fig. 2 is the schematic diagram of novel oil circuit connection of the invention；
Fig. 3 is the structural schematic diagram of prefilter of the invention；
Fig. 4 is the structural schematic diagram of fine filter of the invention.
In attached drawing, 1- filter block sub-unit, 11- oil pump, the first check valve of 12-, 13- second one-way valve；2- prefilter, 21-
Shell, 22- water accumulating cup, 23- liquid level sensor, 24- discharging valve, 25- filter core；3- fine filter.
[specific embodiment]
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As shown in Figures 1 to 4, the present invention provides a kind of novel diesel fuel filter, which includes
Filter block sub-unit 1, prefilter 2, fine filter 3 can pass through spiral shell as shown in Figure 1, being provided with a hole on the pedestal of filter block sub-unit 1
Bolt is fixed on the engine by pedestal.And pre-flock mounting base and refined filtration mounting base are provided on filter block sub-unit 1, prefilter 2 is pacified
Loaded in pre-flock mounting base, fine filter 3 is installed in refined filtration mounting base, and optionally, pre-flock mounting base 2 and refined filtration mounting base 3 are set
It is equipped with screw hole, the upper end of prefilter 2, which is engaged by external screw thread with the screw hole of pre-flock mounting base, to be connect, the upper end of fine filter 3
It is engaged and is connect with the screw hole of refined filtration mounting base by external screw thread, consequently facilitating being dismounted to prefilter 2 and fine filter 3.
Sealing ring can also be equipped while being connected through a screw thread.Furthermore it is also possible to make pre-flock mounting base and refined filtration mounting base
Screw hole it is of different sizes so that the externally threaded size of prefilter 2 and fine filter 3 is also different, so that 2 nothing of prefilter
Method is installed in refined filtration mounting base, and fine filter 3 can not be also installed in pre-flock mounting base, to avoid setup error.
As shown in figure 3, prefilter 2 mainly can include shell 21 and filter core 25, filter core using conventional cleaner structure
25 are set in shell 21, and after fuel oil to be filtered is come in from the oiler of the shell 21 of prefilter 2, fuel oil penetrates its filter core 25
Filter paper after be discharged from the oil outlet of shell 21, and large granular impurity and water are blocked on the outside of its filter paper to stay in shell 21
It is interior.Optionally, the bottom of prefilter 2 is provided with a water accumulating cup 22, and the water that the filter core 25 of prefilter 2 obtains is discharged into water accumulating cup
It is collected in 22, due to bigger than fuel density, staying in the water on filter paper can slowly be settled down in water accumulating cup 22 water.Optionally,
Water accumulating cup 22 is transparent cup body, consequently facilitating observation.And a liquid level sensor 23 is provided in water accumulating cup 22, and water accumulating cup 22 is set
It is equipped with a discharging valve 24.After the water level in water accumulating cup 22 reaches certain value, after liquid level sensor 23 detected, just by discharging water
Valve 24 discharges water.Discharging valve 24 can be discharged water by system automatically according to the feedback of liquid level sensor to control, and be also possible to liquid
Level sensor 23 detects alarms after water level reaches certain value, reminds driver by discharging water by the indicator light on driver's cabin
Valve 24 discharges water.As shown in figure 4, fine filter 3 also uses conventional cleaner structure, and mainly by shell and filter core group
At fuel oil is entered from the oiler of its shell, and fuel oil is discharged from oil outlet again through the filter paper of filter core, and little particle impurity quilt
It is blocked on the outside of the filter paper of its filter core.
As shown in Fig. 2, the oil inlet on filter block sub-unit 1 is connect with the oiler of prefilter 2, the oil outlet of prefilter 2
Setting is provided with first check valve on one of oil circuit there are two oil circuit in parallel between the oiler of fine filter 3
12, an oil pump 11 is provided on another oil circuit, and the oil outlet of fine filter 3 connect with a flowline, is arranged on flowline
There is a second one-way valve 13.Oil pump 11, the first check valve 12 and second one-way valve 13 are all set in the pedestal of filter block sub-unit
Inside.First check valve 12 forms parallel-connection structure with oil pump 11, when oil pump 11 does not work, due to the comparison of resistance of oil pump 11
Greatly, oil circuit cannot pass through oil pump 11, and the oil that prefilter 2 ejects makes the oil pressure on the right of the first check valve 12 greater than the oil on the left side
Pressure, the first check valve 12 are opened, and fuel oil is just directly over the first check valve 12 after coming out from prefilter 2 and flows into fine filter 3, thus
There is no air in fuel system, when can normally start engine, prefilter 2 is connected by the oil circuit where the first check valve 12
With fine filter 3；When having air that can not start in fuel system, just need to restart by 11 pump oil of oil pump air is discharged
Engine connects prefilter 2 and fine filter 3 by the oil circuit where oil pump 11 at this time.When oil pump 11 works, the first check valve 12
The oil pressure that the oil pressure on the left side is greater than the right avoids fuel flow returns, passes through oil between prefilter 2 and fine filter 3 to remain turned-off
Oil circuit connection where pump 11, fuel oil to be filtered are transported to prefilter 2 from the oil inlet of filter block sub-unit 1 and carry out first order mistake
After filter, progress second level filtering in fine filter 3 is entered back into, fuel oil can guarantee the cleannes of fuel oil by double-filtration,
Filter life can also be caused short too much to avoid impurity.And from fine filter 3 come out after fuel oil be conveyed to by flowline
Engine, second one-way valve 13 can be avoided fuel flow returns when engine is shut down, start when engine being avoided to be again started up
It is difficult.
The present invention is optional, and the first check valve 12 is plunger check valve, and second one-way valve 13 is diaphragm check valve.Plunger list
It is conventional structure to valve 12, is mainly made of valve body, spring, sealing ring, seal is assemblied on valve body, and valve body is provided with inner cavity,
For placing spring.Under original state, valve body is made sealing ring and base into contact by spring force, forms sealing.Diaphragm check valve by
Fan valve, one-way valve seat, sealing ring composition.Sealing ring is assemblied on one-way valve seat, and is assembled to form sealing with pedestal.Fan valve assembly
On one-way valve seat, when fuel oil forward direction flows through diaphragm check valve, fan valve is opened, and fuel oil is normal through diaphragm check valve.Work as combustion
When oily reverse backflow, fan valve is closed, and reverse pressure is bigger, and fan valve sealing is tighter, to prevent fuel flow returns.In addition, oil pump 11
Conventional hand oil pump can be used, and the present invention is optional, oil pump 11 is electronic pump, and electronic pump is with energization timing and automatically
The function of power-off, after the power is turned on, electronic pump works, and is automatically stopped after work to setting time.Oil pump 11 is electronics
Pump, if there is air in fuel system, does not just need manually to press operation, can realize automatic-discharging function well, to guarantee
Engine can smoothly start.
The present invention is by being integrated in prefilter 2 and fine filter 3 on the same filter block sub-unit 1, to shorten prefilter 2
The pipeline connected between fine filter 3 reduces occupied space, is conveniently installed on engine, not only connection and reasonable arrangement, structure are tight
It gathers, and can reduce cost and reduce the resistance of fuel system.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (7)
1. a kind of novel diesel fuel filter, which is characterized in that including filter block sub-unit, prefilter, fine filter, the filter block point
Pre-flock mounting base and refined filtration mounting base are provided on assembly, the prefilter is installed in the pre-flock mounting base, the refined filtration
Device is installed in the refined filtration mounting base；Oil inlet on the filter block sub-unit is connect with the oiler of the prefilter, institute
State oil circuit there are two being arranged in parallel between the oil outlet of prefilter and the oiler of the fine filter, one of them described oil circuit
On be provided with first check valve, an oil pump is provided on another described oil circuit；The oil outlet of the fine filter and one
A flowline connects, and is provided with a second one-way valve on the flowline.
2. novel diesel fuel filter according to claim 1, which is characterized in that the oil pump is electronic pump.
3. novel diesel fuel filter according to claim 2, which is characterized in that the electronic pump have energization timing and
The function of automatically powering off.
4. novel diesel fuel filter according to claim 1, which is characterized in that first check valve is that plunger is unidirectional
Valve, the second one-way valve are diaphragm check valve.
5. novel diesel fuel filter according to claim 1, which is characterized in that the bottom of the prefilter is provided with one
A water accumulating cup, the water that the filter core of the prefilter obtains are discharged into the water accumulating cup and are collected；Setting in the water accumulating cup
There is a liquid level sensor, and the water accumulating cup is provided with a discharging valve.
6. novel diesel fuel filter according to claim 5, which is characterized in that the water accumulating cup is transparent cup body.
7. novel diesel fuel filter according to claim 1, which is characterized in that the pre-flock mounting base and refined filtration installation
Seat is provided with screw hole of different sizes, and the upper end of the prefilter is nibbled by external screw thread and the screw hole of the pre-flock mounting base
Connection is closed, the upper end of the fine filter, which is engaged by external screw thread with the screw hole of the refined filtration mounting base, to be connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811580276.6A CN109372668A (en) | 2018-12-24 | 2018-12-24 | A kind of novel diesel fuel filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811580276.6A CN109372668A (en) | 2018-12-24 | 2018-12-24 | A kind of novel diesel fuel filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109372668A true CN109372668A (en) | 2019-02-22 |
Family
ID=65371592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811580276.6A Pending CN109372668A (en) | 2018-12-24 | 2018-12-24 | A kind of novel diesel fuel filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109372668A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826736A (en) * | 2019-03-25 | 2019-05-31 | 上海弗列加滤清器有限公司 | A kind of fuel filter with limnimeter |
| CN110735746A (en) * | 2019-11-06 | 2020-01-31 | 一汽解放汽车有限公司 | fuel prefilter and prefilter filtering control method |
| CN110985252A (en) * | 2019-12-30 | 2020-04-10 | 潍柴动力股份有限公司 | Method for preventing fuel oil from being sucked back by cold treasure |
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| CN102338005A (en) * | 2010-07-21 | 2012-02-01 | 派克汉尼汾液压系统(上海)有限公司 | Fuel filter base integrated with electronic oil pump and fuel filter |
| CN203515891U (en) * | 2013-09-24 | 2014-04-02 | 潍柴动力股份有限公司 | Fuel filter |
| CN204627820U (en) * | 2015-03-11 | 2015-09-09 | 山重建机有限公司 | A kind of three grades of diesel-oil filters |
| CN205117564U (en) * | 2015-11-17 | 2016-03-30 | 罗伯特·博世有限公司 | Fuel injection system and low pressure oil circuit thereof |
| CN209278042U (en) * | 2018-12-24 | 2019-08-20 | 广西华原过滤系统股份有限公司 | A kind of novel diesel fuel filter |
-
2018
- 2018-12-24 CN CN201811580276.6A patent/CN109372668A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338005A (en) * | 2010-07-21 | 2012-02-01 | 派克汉尼汾液压系统(上海)有限公司 | Fuel filter base integrated with electronic oil pump and fuel filter |
| CN203515891U (en) * | 2013-09-24 | 2014-04-02 | 潍柴动力股份有限公司 | Fuel filter |
| CN204627820U (en) * | 2015-03-11 | 2015-09-09 | 山重建机有限公司 | A kind of three grades of diesel-oil filters |
| CN205117564U (en) * | 2015-11-17 | 2016-03-30 | 罗伯特·博世有限公司 | Fuel injection system and low pressure oil circuit thereof |
| CN209278042U (en) * | 2018-12-24 | 2019-08-20 | 广西华原过滤系统股份有限公司 | A kind of novel diesel fuel filter |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826736A (en) * | 2019-03-25 | 2019-05-31 | 上海弗列加滤清器有限公司 | A kind of fuel filter with limnimeter |
| CN109826736B (en) * | 2019-03-25 | 2024-01-30 | 上海弗列加滤清器有限公司 | Fuel filter with water level meter |
| CN110735746A (en) * | 2019-11-06 | 2020-01-31 | 一汽解放汽车有限公司 | fuel prefilter and prefilter filtering control method |
| CN110985252A (en) * | 2019-12-30 | 2020-04-10 | 潍柴动力股份有限公司 | Method for preventing fuel oil from being sucked back by cold treasure |
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