CN209569102U - Exhaust apparatus, fuel preliminary filter and engine for fuel preliminary filter - Google Patents
Exhaust apparatus, fuel preliminary filter and engine for fuel preliminary filter Download PDFInfo
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- CN209569102U CN209569102U CN201822208277.XU CN201822208277U CN209569102U CN 209569102 U CN209569102 U CN 209569102U CN 201822208277 U CN201822208277 U CN 201822208277U CN 209569102 U CN209569102 U CN 209569102U
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- exhaust
- filter
- fuel
- preliminary filter
- fuel preliminary
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Abstract
The utility model provides a kind of exhaust apparatus for fuel preliminary filter, the inside of fuel preliminary filter is arranged in the exhaust apparatus, the exhaust apparatus includes interconnected first exhaust passage and second exhaust channel, one end of the first exhaust passage is connected to the space above the filter core of fuel preliminary filter, the other end of the first exhaust passage is connected to the one end in the second exhaust channel, and the bottom end that the other end in the second exhaust channel passes through the filter core is connected to the oil outlet of the fuel preliminary filter.The utility model makes full use of the negative pressure formed when oil transportation pump work, by increasing exhaust passage, realizes self-bleeding purpose in engine working process, and then reduce air in the accumulation of coarse filtration module top, solves the problems, such as engine start difficulty.
Description
Technical field
The utility model relates to engine fuel oil system technical fields, more particularly to a kind of row for fuel preliminary filter
Device of air, fuel preliminary filter and engine.
Background technique
In the dismountable fuel preliminary filter of filter core, air is easy to accumulate in filter cover, and it is tired to be easy to produce engine start
Difficult problem.Existing scheme is usually to increase by an aperture at the top of coarse filtration filter core, communicates, reaches with the air-flow after filter before making filter
Liquid level is improved, and then alleviates the effect of difficulty in starting problem.
Existing scheme can improve fuel level before filter to a certain extent, but since gas is thick always present in fuel oil
The top of filter, over time, headspace accumulation are more and more, can not mediate, eventually result in engine oil suction
There is the problems such as flame-out, difficulty in starting in difficulty.
Utility model content
The purpose of this utility model is at least to solve one of drawbacks described above and deficiency, which is by the following technical programs
It realizes.
The utility model provides a kind of exhaust apparatus for fuel preliminary filter, and the exhaust apparatus setting is thick in fuel oil
The inside of filter, the exhaust apparatus include interconnected first exhaust passage and second exhaust channel, the first exhaust
The one end in channel is connected to the space above the filter core of fuel preliminary filter, the other end of the first exhaust passage and described second
One end of exhaust passage is connected to, bottom end and the fuel preliminary filter of the other end in the second exhaust channel across the filter core
Oil outlet connection.
Preferably, the exhaust apparatus is vertically situated at the inside of the filter core, and the exhaust apparatus passes through the filter
The top and bottom of core.
Preferably, the exhaust apparatus is vertically situated at the center of the filter core, the first exhaust passage and
The central axis in the second exhaust channel is overlapped with the central axis of the filter core respectively.
Preferably, the first exhaust passage and second exhaust channel are tubular conduit.
Preferably, the first exhaust passage is formed by the channel in the connector for the top end for being connected to the filter core, institute
Second exhaust channel is stated to be formed by the channel of straight tube.
Preferably, the internal diameter of the first exhaust passage is less than the internal diameter in the second exhaust channel, also, described first
The length of exhaust passage is less than the length in second exhaust channel.
The utility model additionally provides a kind of fuel preliminary filter, and the inside of the fuel preliminary filter is equipped with above-mentioned for firing
The exhaust apparatus of oily coarse filter.
The utility model additionally provides a kind of engine including above-mentioned fuel preliminary filter.
Preferably, the engine is diesel engine.
The advantages of the utility model, is as follows:
The utility model makes full use of the negative pressure formed when oil transportation pump work, by increasing exhaust passage, realizes engine
Self-bleeding purpose in the course of work, and then air is reduced in the accumulation of coarse filtration module top, it is tired to solve engine start
Difficult problem.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as practical to this
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.
Fig. 1 is the structural schematic diagram of the exhaust apparatus provided by the embodiment of the utility model for fuel preliminary filter；
Fig. 2 is the working oil path figure of fuel preliminary filter provided by the embodiment of the utility model；
Appended drawing reference is as follows in figure:
10- fuel preliminary filter 101- oil inlet
102- oil outlet 1- filter housing
2- filter core 3- filter cover
4- exhaust passage 5- connector
41- first exhaust passage 42- second exhaust channel
20- oil transfer pump 30- fuel tank
40- secondary fuel oil filter 50- injection pump
501- oil spout pipeline 502- oil returning tube
Specific embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in attached drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.It is to be able to thoroughly understand the disclosure on the contrary, providing these embodiments, and can be by this public affairs
The range opened is fully disclosed to those skilled in the art.
Fig. 1 shows the structure for the exhaust apparatus for fuel preliminary filter that embodiment according to the present utility model provides
Schematic diagram, Fig. 2 shows the working oil path figure (two-wires in figure for the fuel preliminary filter that embodiment according to the present utility model provides
Arrow direction is fuel oil flow direction, and single lined arrows direction is air flow direction).
As shown in Figure 1, fuel preliminary filter 10 includes filter housing 1 and the filter core 2 being arranged in filter housing 1, the top of filter core 2 is equipped with
Filter cover 3.The side of fuel preliminary filter 10 is equipped with oil inlet 101, and the other side of fuel preliminary filter 10 is equipped with oil outlet 102, filtering
When, fuel oil enters from oil inlet 101, is discharged after the filtering of filter core 2 by oil outlet 102.It is provided by the utility model to be used for fuel oil
The exhaust apparatus of coarse filter is used to be discharged the air at the top of fuel preliminary filter 10, prevents it in the caping product of fuel preliminary filter 10
It is poly-.
The inside of the filter core 2 of fuel preliminary filter 10 is arranged in the exhaust apparatus, and passes through the top and bottom of filter core 2.
Exhaust apparatus includes interconnected first exhaust passage 41 and second exhaust channel 42, one end of first exhaust passage 41 and filter
The space connection of 2 top of core, the other end of first exhaust passage 41 are connected to the one end in second exhaust channel 42, and second exhaust is logical
The bottom end that the other end in road 42 passes through filter core 2 is connected to the oil outlet 102 of fuel preliminary filter 10.
Specifically, first exhaust passage 41 and second exhaust channel 42 are vertically situated in filter core 2, first exhaust passage
41 and second exhaust channel 42 center of filter core 2, the center of first exhaust passage 41 and second exhaust channel 42 are set
Axis is overlapped with the central axis of filter core 2 respectively.
First exhaust passage 41 and second exhaust channel 42 are tubular conduit, and first exhaust passage 41 is by being connected to filter core
Channel in the connector 5 of 2 top end is formed, and second exhaust channel 42 is formed by the channel of straight tube.In the negative pressure of oil transfer pump 20
Under effect, the air for accumulating in the top of fuel preliminary filter 10 can be discharged in time from top to bottom.By being connected to filter core 2
Channel in the connector 5 of top end forms first exhaust passage 41, and the installation of detachable filter core 2 is facilitated to fix.
The internal diameter of first exhaust passage 41 is less than the internal diameter in second exhaust channel 42, and the length of first exhaust passage 41
Less than the length in second exhaust channel 42, one section of relatively narrow first exhaust passage 41 is arranged in the top in second exhaust channel 42 can be with
Guarantee that the air at top can fully enter in second exhaust channel 42.
The working principle of the utility model is as follows:
As shown in Fig. 2, fuel oil under the effect of oil transfer pump 20, flows into fuel preliminary filter 10 from fuel tank 30 and carries out first time filtering
(coarse filtration), filtered fuel oil are pressurizeed by oil transfer pump 20 and are reached afterwards via second of filtering (refined filtration) of the progress of secondary fuel oil filter 40
Injection pump 50 is equipped with oil spout pipeline 501 and oil returning tube 502 at injection pump 50, and fuel oil can be by 502 oil return of oil returning tube extremely
Fuel tank 30.Fuel oil is precipitated and the air accumulated at the top of filter cover 3 can be by setting under the action of the negative-pressure sucking of oil transfer pump 20
It sets the exhaust passage 4 inside fuel preliminary filter 10 to be discharged, be finally discharged in fuel tank 30 with fuel oil.
The utility model additionally provides a kind of fuel preliminary filter including above-mentioned exhaust apparatus, and filter core is detachable knot
Structure.
The utility model additionally provides a kind of engine including above-mentioned fuel preliminary filter, the fuel filter of the engine
Including fuel preliminary filter 10 and secondary fuel oil filter 40, the oil duct of fuel preliminary filter 10 and secondary fuel oil filter 40 is interconnected, fuel oil
Coarse filter 10 and secondary fuel oil filter 40 can be respectively arranged, and also may be mounted in same filter mounting base.In addition, engine
Preferably diesel engine.
The utility model makes full use of the negative pressure formed when oil transportation pump work, by increasing exhaust passage, realizes engine
Self-bleeding purpose in the course of work, and then air is reduced in the accumulation of coarse filtration module top, it is tired to solve engine start
Difficult problem.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with
Subject to the scope of protection of the claims.
Claims (9)
1. a kind of exhaust apparatus for fuel preliminary filter, which is characterized in that fuel preliminary filter is arranged in the exhaust apparatus
Inside, the exhaust apparatus include interconnected first exhaust passage and second exhaust channel, the first exhaust passage
One end is connected to the space above the filter core of fuel preliminary filter, and the other end of the first exhaust passage and the second exhaust are logical
The one end in road is connected to, and the other end in the second exhaust channel passes through the fuel-displaced of the bottom end of the filter core and the fuel preliminary filter
Mouth connection.
2. the exhaust apparatus according to claim 1 for fuel preliminary filter, which is characterized in that the exhaust apparatus is vertical
The inside of the filter core is arranged in ground, and the exhaust apparatus passes through the top and bottom of the filter core.
3. the exhaust apparatus according to claim 2 for fuel preliminary filter, which is characterized in that the exhaust apparatus is vertical
Ground is arranged in the center of the filter core, the central axis in the first exhaust passage and the second exhaust channel respectively with
The central axis of the filter core is overlapped.
4. the exhaust apparatus according to claim 2 for fuel preliminary filter, which is characterized in that the first exhaust passage
It is tubular conduit with second exhaust channel.
5. the exhaust apparatus according to claim 1 for fuel preliminary filter, which is characterized in that the first exhaust passage
It is formed by the channel in the connector for the top end for being connected to the filter core, the second exhaust channel is formed by the channel of straight tube.
6. the exhaust apparatus according to claim 2 for fuel preliminary filter, which is characterized in that the first exhaust passage
Internal diameter be less than the second exhaust channel internal diameter, also, the length of the first exhaust passage be less than second exhaust channel
Length.
7. a kind of fuel preliminary filter, which is characterized in that the inside of the fuel preliminary filter is equipped with appoints in 6 according to claim 1
The exhaust apparatus of fuel preliminary filter is used for described in one.
8. a kind of engine, including fuel preliminary filter and secondary fuel oil filter, which is characterized in that the fuel preliminary filter is according to power
Benefit require 7 described in fuel preliminary filter.
9. engine according to claim 8, which is characterized in that the engine is diesel engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822208277.XU CN209569102U (en) | 2018-12-25 | 2018-12-25 | Exhaust apparatus, fuel preliminary filter and engine for fuel preliminary filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822208277.XU CN209569102U (en) | 2018-12-25 | 2018-12-25 | Exhaust apparatus, fuel preliminary filter and engine for fuel preliminary filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209569102U true CN209569102U (en) | 2019-11-01 |
Family
ID=68330940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822208277.XU Active CN209569102U (en) | 2018-12-25 | 2018-12-25 | Exhaust apparatus, fuel preliminary filter and engine for fuel preliminary filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209569102U (en) |
-
2018
- 2018-12-25 CN CN201822208277.XU patent/CN209569102U/en active Active
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