CN207974903U - Fuel preliminary filter - Google Patents
Fuel preliminary filter Download PDFInfo
- Publication number
- CN207974903U CN207974903U CN201820243808.6U CN201820243808U CN207974903U CN 207974903 U CN207974903 U CN 207974903U CN 201820243808 U CN201820243808 U CN 201820243808U CN 207974903 U CN207974903 U CN 207974903U
- Authority
- CN
- China
- Prior art keywords
- filter
- oil
- end cover
- central tube
- gas collecting
- 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.)
- Active
Links
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of fuel preliminary filters, belong to filter technical field, including filter block, filter body and filter core, and the lower part of the filter body is set as one with the filter block；The filter block is equipped with oil input channel and oil road, and the oil input channel is connected to the cavity between the filter body and the filter core；The filter core includes upper end cover, bottom end cover and central tube；Oil outlet is offered on the central tube, the central tube is connected to the oil road；The first sealing element is equipped between the bottom end cover and the oil road；The middle part of the upper end cover is equipped with gas collecting tube, the gas collecting tube passes through the upper end cover and extends in the central tube, the lower end of the gas collecting tube is connected with exhaust pipe, the exhaust pipe is located inside the central tube, the input end of the exhaust pipe is equipped with exhaust check valve, and the outlet end of the exhaust pipe is equipped with dosing hole.The utility model can effectively prevent gas to be gathered in fuel preliminary filter, it is ensured that engine normally starts.
Description
Technical field
The utility model belongs to filter technical field more particularly to a kind of fuel preliminary filter.
Background technology
Fuel preliminary filter is arranged in the front side of oil transfer pump mostly, which is suction side, and fuel preliminary filter is mainly used for filtering
Larger particles and excessively drainage, prevent bulky grain from wearing oil transfer pump, are conducive to protect oil transfer pump.
Currently, existing fuel preliminary filter includes mainly filter block, upper cover, shell and the filter core being arranged in chamber inside the shell,
Upper cover, which is arranged between the top of shell, the lower end and shell of filter core, is equipped with elastic component, by the elastic force of elastic component by filter core top
It leans against on lid, upper cover is installed on filter block.
As emission request is higher and higher so that worse and worse, fuel oil is through filtering for the permeability of filter element filtering material
When core filters, filter core inevitably largely separates the gas in fuel oil so that a large amount of gas of accumulation in fuel preliminary filter
Body, and keep the fuel oil of fuel preliminary filter seldom.In engine start, due to Low oil Fuel in fuel preliminary filter, it is often necessary to
Start it is several under, until the gas gathered in fuel preliminary filter is discharged, engine could start and work normally, and cause to start
Machine parking difficulty in starting.
In addition, the shell of the fuel preliminary filter of this structure is connect once being formed with upper cover, can not just dismount, therefore can only
Using primary.In this way when safeguarding, shell must be replaced together with filter core, and not only maintenance cost is high, but also waste of resource.This
Outside, when replacing filter core, part fuel oil can flow to and cause environmental pollution in external environment.
Utility model content
Technical problem to be solved in the utility model is：A kind of fuel preliminary filter is provided, gas can be effectively prevent to exist
Accumulation in fuel preliminary filter, it is ensured that engine normally starts.
In order to solve the above technical problems, the technical solution of the utility model is：Fuel preliminary filter, including filter block, filter body and
Filter core, the lower part of the filter body are set as one with the filter block；The filter block is equipped with oil input channel and oil road, the oil input channel
The cavity being connected between the filter body and the filter core；
The filter core includes upper end cover, bottom end cover and the central tube between the upper end cover and the bottom end cover；
Oil outlet is offered on the central tube, the central tube is connected to the oil road；Between the bottom end cover and the oil road
Equipped with the first sealing element；
The middle part of the upper end cover is equipped with gas collecting tube, and the gas collecting tube passes through the upper end cover and extends to the central tube
Interior, the lower end of the gas collecting tube is connected with exhaust pipe, and the exhaust pipe is located inside the central tube, the import of the exhaust pipe
End is equipped with exhaust check valve, and the outlet end of the exhaust pipe is equipped with dosing hole.
As an improvement the periphery of the central tube is equipped with multiple support plates for being used to support filter paper, it is described fuel-displaced
Mouth is set to the top of the central tube.
As an improvement the gas collecting tube is back taper gas collecting tube.
As an improvement the exhaust check valve is Duckbill one-way valves；The dosing hole is arranged in the exhaust pipe
Bottom surface.
As an improvement the filter body includes shell and is sealingly mounted at the upper cover of the shell upper, the shell
Lower part and the filter block be set as one.
As a further improvement, oil expulsion channel is additionally provided on the filter block, the lower surface of the bottom end cover, which has, stretches into institute
The first protrusion for stating oil expulsion channel is equipped with the second sealing element, first protrusion between first protrusion and the oil expulsion channel
Lower part there is the second protrusion for stretching into the oil road, it is close to be equipped with described first between second protrusion and the oil road
Seal element.
As a further improvement, the upper cover is equipped with external screw thread, and the top of the shell is equipped with and the external screw thread phase
The internal thread of adaptation is equipped with third sealing element between the upper cover and the shell.
As a further improvement, the gas collecting tube clamps on the cover.
As an improvement the lower surface of the upper end cover and the upper surface of the bottom end cover are equipped with and the central tube
Matched annular protrusion.
As a further improvement, the ring of the upper end cover, the gas collecting tube, the exhaust pipe and the upper end cover
Shape protrusion is wholely set.
After using above-mentioned technical proposal, the utility model has the beneficial effects that：
Since the middle part of the upper end cover is equipped with gas collecting tube, the lower end of the gas collecting tube is connected with exhaust pipe, the exhaust
The input end of pipe is equipped with exhaust check valve, and the outlet end of the exhaust pipe is equipped with dosing hole, because fuel preliminary filter is in suction side,
It is gathered in filter body top after gas evolution, exhaust check valve is opened under suction, the gas of such top aggregation can be through collection
Tracheae, exhaust check valve enter exhaust pipe, and the fluid of flowing is then entered by dosing hole, with fuel flow, can effectively prevent
Only gas gathers in fuel preliminary filter, it is ensured that engine normally starts.
Since the periphery of the central tube is equipped with multiple support plates for being used to support filter paper, the oil outlet is set to described
The top of central tube, thus the fuel oil entered from oil input channel is formed after being filtered through filter paper between support plate and filter paper
Cavity goes upward to the oil outlet of central tube, then the inner downlink through central tube enters oil road, in this way using entire filter paper into
Row filtering, can be improved the utilization rate of filter paper.
Since the filter body includes shell and is sealingly mounted at the upper cover of the shell upper, in this way by upper cover from shell
After removing, then filter core removed from filter block, it may be convenient to filter core be dismounted, maintained easily, cost is saved.
Due to being additionally provided with oil expulsion channel on the filter block, the lower surface of the bottom end cover, which has, stretches into the first of the oil expulsion channel
Protrusion, thus when removing filter core, the fuel oil in shell can flow back to fuel tank through oil expulsion channel, avoid fuel oil and flow to external environment
In pollute.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is close-up schematic view at A in Fig. 1；
In figure：1- filter blocks, 11- shells, 12- oil roads, 13- oil expulsion channels, 2- upper covers, 3- filter cores, 31- upper end covers, under 32-
End cap, the first protrusions of 321-, the second protrusions of 322-, 33- central tubes, 331- support plates, 332- oil outlets, 34- gas collecting tubes, 35-
Exhaust pipe, 351- dosing holes, 36- exhaust check valves, 37- annular protrusions, 38- annular protrusions, 39- filter paper, 4- third sealing rings,
The first sealing rings of 5-, the second sealing rings of 6-；
Hollow arrow in Fig. 1 represents the trend of fuel oil；Filled arrows in Fig. 1 represent the trend of gas.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As Fig. 1 and Fig. 2 jointly shown in, a kind of fuel preliminary filter, including filter block 1, filter body and filter core 3, filter body include shell
11 and it is sealingly mounted at the upper cover 2 on 11 top of shell, lower part and the filter block 1 of shell 11 are set as one, it is preferred that upper cover 2 is equipped with
The top of external screw thread, shell 11 is equipped with internal thread compatible with external screw thread, and third sealing member is equipped between upper cover 2 and shell 11
Part.Third sealing element is preferably third sealing ring 4, and certainly, third sealing element can also select those skilled in the art's energy
Other manner, such as oil sealing for enough realizing etc., details are not described herein.
Filter block 1 is equipped with oil input channel (not shown), oil road 12 and oil expulsion channel 13, and oil input channel is connected to filter body and filter core
Cavity between 3.
Filter core 3 includes upper end cover 31, bottom end cover 32 and the central tube between upper end cover 31 and the bottom end cover 32
33。
The middle part of upper end cover 31 is equipped with gas collecting tube 34, it is preferred that gas collecting tube 34 is installed in upper cover 2, and gas collecting tube 34 passes through
Upper end cover 31 simultaneously extends in central tube 33, and the lower end of gas collecting tube 34 is connected with exhaust pipe 35, and exhaust pipe 35 is located at central tube 33
The input end of inside, exhaust pipe 35 is equipped with exhaust check valve 36, and the outlet end of exhaust pipe 35 is equipped with dosing hole 351.Preferably, collect
Tracheae 34 is back taper gas collecting tube.Exhaust check valve 36 is Duckbill one-way valves；Dosing hole 351 is arranged in the bottom surface of exhaust pipe 35.
The lower surface of upper end cover 31 be equipped with 33 matched annular protrusion 37 of central tube, the upper surface of bottom end cover 32 is equipped with
With 33 matched annular protrusion 38 of central tube.
In order to reduce the quantity of parts, facilitate installation, it is preferred that upper end cover 31, gas collecting tube 34, exhaust pipe 35 and annular
Protrusion 37 is wholely set.Certainly, upper end cover 31, gas collecting tube 34 and exhaust pipe 35 can also use split settings.
In order to improve the utilization rate of filter paper 39, the periphery of central tube 33 is equipped with multiple support plates for being used to support filter paper 39
331, the top of central tube 33 offers oil outlet 332, and central tube 33 is connected to oil road 12.
The lower surface of bottom end cover 32, which has, stretches into the first protrusion 321 of oil expulsion channel 13, the first protrusion 321 and oil expulsion channel 13 it
Between be equipped with the second sealing element, the lower part of the first protrusion 321 has the second protrusion 322 for stretching into oil road 12, the second protrusion 322
The first sealing element is equipped between oil road 12.First sealing element is preferably the first sealing ring 5, and the second sealing element is preferred
For the second sealing ring 6, certainly, the first sealing element and the second sealing element can also select those skilled in the art that can realize
Other manner, such as oil sealing etc., details are not described herein.
Its operation principle is as follows：
Fuel oil enters from oil input channel in shell 11, after the filtering of filter paper 39, is formed between support plate 331 and filter paper 39
Cavity go upward to the oil outlet 332 of central tube 33, then the inner downlink through central tube 33 enters oil road 12, available in this way
Entire filter paper 39 is filtered, and the utilization rate of filter paper 39 can be improved；Because fuel preliminary filter is in suction side, assemble after gas evolution
On filter body top, exhaust check valve 36 is automatically opened under suction, the gas of such top aggregation can be through gas collecting tube 34, row
Gas check valve 36 enters exhaust pipe 35, then enters the fluid that flows in central tube 33 by dosing hole 351, with fuel flow,
Gas can be effectively prevent to be gathered in fuel preliminary filter, it is ensured that engine normally starts.
Using a period of time, when being replaced to filter core 3, upper cover 2 is backed out from shell 11, then by filter core 3 from filter
It removes on seat 1, then again by new filter core on filter block 1, then upper cover 2 is threaded on shell 11 again, Ke Yifang
Being dismounted to filter core just, maintains easily, and saves cost；In the process, when removing filter core 3, the combustion in shell 11
Oil can flow back to fuel tank through oil expulsion channel 13, avoid fuel oil and flow in external environment and pollute.
Fuel preliminary filter provided by the utility model can effectively prevent gas to be gathered in fuel preliminary filter, it is ensured that hair
Motivation normally starts；Easily filter core can be dismounted, be maintained easily, save cost；Fuel oil is can effectively avoid to flow to outside
It is polluted in portion's environment.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (10)
1. fuel preliminary filter, including filter block, filter body and filter core, which is characterized in that the lower part of the filter body is set as with the filter block
One；The filter block is equipped with oil input channel and oil road, and the oil input channel is connected to the cavity between the filter body and the filter core；
The filter core includes upper end cover, bottom end cover and the central tube between the upper end cover and the bottom end cover；It is described
Oil outlet is offered on central tube, the central tube is connected to the oil road；It is equipped between the bottom end cover and the oil road
First sealing element；
The middle part of the upper end cover is equipped with gas collecting tube, and the gas collecting tube passes through the upper end cover and extends in the central tube,
The lower end of the gas collecting tube is connected with exhaust pipe, and the exhaust pipe is located inside the central tube, the input end of the exhaust pipe
Equipped with exhaust check valve, the outlet end of the exhaust pipe is equipped with dosing hole.
2. fuel preliminary filter according to claim 1, which is characterized in that the periphery of the central tube is equipped with multiple be used for
The support plate of filter paper, the oil outlet is supported to be set to the top of the central tube.
3. fuel preliminary filter according to claim 1, which is characterized in that the gas collecting tube is back taper gas collecting tube.
4. fuel preliminary filter according to claim 1, which is characterized in that the exhaust check valve is Duckbill one-way valves；Institute
Dosing hole is stated to be arranged in the bottom surface of the exhaust pipe.
5. according to the fuel preliminary filter described in any one of Claims 1-4 claim, which is characterized in that the filter body
Including shell and the upper cover for being sealingly mounted at the shell upper, lower part and the filter block of the shell are set as one.
6. fuel preliminary filter according to claim 5, which is characterized in that oil expulsion channel is additionally provided on the filter block, under described
The lower surface of end cap has the first protrusion for stretching into the oil expulsion channel, and second is equipped between first protrusion and the oil expulsion channel
Sealing element, it is described first protrusion lower part have stretch into the oil road second protrusion, it is described second protrusion with it is described go out
First sealing element is equipped between oil duct.
7. fuel preliminary filter according to claim 6, which is characterized in that the upper cover is equipped with external screw thread, the shell
Top is equipped with internal thread compatible with the external screw thread, and third sealing element is equipped between the upper cover and the shell.
8. fuel preliminary filter according to claim 5, which is characterized in that the gas collecting tube clamps on the cover.
9. fuel preliminary filter according to claim 1, which is characterized in that the lower surface of the upper end cover and the bottom end cover
Upper surface be equipped with and the matched annular protrusion of the central tube.
10. fuel preliminary filter according to claim 9, which is characterized in that the upper end cover, the gas collecting tube, the row
The annular protrusion of tracheae and the upper end cover is wholely set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820243808.6U CN207974903U (en) | 2018-02-09 | 2018-02-09 | Fuel preliminary filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820243808.6U CN207974903U (en) | 2018-02-09 | 2018-02-09 | Fuel preliminary filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207974903U true CN207974903U (en) | 2018-10-16 |
Family
ID=63767615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820243808.6U Active CN207974903U (en) | 2018-02-09 | 2018-02-09 | Fuel preliminary filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207974903U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792539A (en) * | 2019-11-25 | 2020-02-14 | 浙江威泰汽配有限公司 | Fuel oil filtering filter element with exhaust valve structure |
| CN113482816A (en) * | 2021-08-16 | 2021-10-08 | 一汽解放汽车有限公司 | Fuel filter |
-
2018
- 2018-02-09 CN CN201820243808.6U patent/CN207974903U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792539A (en) * | 2019-11-25 | 2020-02-14 | 浙江威泰汽配有限公司 | Fuel oil filtering filter element with exhaust valve structure |
| CN110792539B (en) * | 2019-11-25 | 2023-11-21 | 浙江威泰汽配有限公司 | Fuel oil filtering filter element with exhaust valve structure |
| CN113482816A (en) * | 2021-08-16 | 2021-10-08 | 一汽解放汽车有限公司 | Fuel filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207974904U (en) | Secondary fuel oil filter | |
| CN207974903U (en) | Fuel preliminary filter | |
| CN110215832A (en) | Industrial water inlet single-stage disc-type filter in parallel | |
| CN207974905U (en) | Combustion filter module | |
| CN206008212U (en) | A kind of water-purifying filter | |
| CN208474923U (en) | A kind of lubricating oil filter | |
| CN204827592U (en) | Full -flow lubricating oil filter | |
| CN207728465U (en) | A kind of fuel filter | |
| CN108131227A (en) | Combustion filter module | |
| CN207905882U (en) | A kind of engine oil grid | |
| CN206290302U (en) | A kind of efficient non-return cleaner of machine oil | |
| CN204900019U (en) | High -efficient long -life oil cleaner | |
| CN207755835U (en) | A kind of diffusional filter | |
| CN204253237U (en) | Fuel oil filtering device | |
| CN211474205U (en) | Multi-stage filter bypass valve | |
| CN208935348U (en) | A kind of construction machinery gear box solenoid valve external filter | |
| CN209302330U (en) | A kind of high pressure filtering device with reverse circulation | |
| CN208502908U (en) | A kind of combustion gas filter | |
| CN207042024U (en) | Ready-package filter | |
| CN220523379U (en) | Strainer convenient to dismantle | |
| CN209687571U (en) | A kind of oil-gas separating device for engine | |
| CN206285576U (en) | A kind of magnetic self-sealing spinning filter core | |
| CN212203538U (en) | Water knockout drum with filter effect | |
| CN207811257U (en) | A kind of fuel charger filter | |
| CN218280897U (en) | Domestic water pre-filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |