CN108331689B - Diesel fuel filter - Google Patents
Diesel fuel filter Download PDFInfo
- Publication number
- CN108331689B CN108331689B CN201810123188.7A CN201810123188A CN108331689B CN 108331689 B CN108331689 B CN 108331689B CN 201810123188 A CN201810123188 A CN 201810123188A CN 108331689 B CN108331689 B CN 108331689B
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- Prior art keywords
- oil outlet
- segment
- fuse
- filter
- diameter
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a kind of diesel fuel filters comprising: shell, filter core, filter block and fuse.Filter core is built in the inside of shell；Filter block is set to the top of shell, oil inlet and oil outlet is offered on filter block, and have oil outlet in filter block, oil outlet is to be connected to filter core and oil outlet；Fuse is solid stepped shaft structure, and fuse is set in oil outlet, and fuse is to cooperatively form gap ventilation device with oil outlet；Wherein, fuse has integrally formed first segment and second segment, and first segment has first diameter, and second segment has second diameter, and first diameter is greater than second diameter；Wherein, the axial direction of the first segment of fuse offers at least one slot, and at least one slot is flowed through with for fuel oil and air；Wherein, the first segment of fuse is located at close to one end of filter core in oil outlet, and second segment is located in oil outlet close to one end of oil outlet.Whereby, diesel fuel filter of the invention, structure is simple, the air inside filter can be discharged.
Description
Technical field
The present invention relates to engine fuel oil system technical field, in particular to a kind of diesel fuel filter.
Background technique
Oil for diesel engine fuel system is especially directly with fuel oil to the fuel system of oil spout pump lubrication, to entrance system
Fuel oil cleannes requirement is very high, therefore proposes high request to the filter efficiency of fuel filter.
As the filter efficiency of filter is promoted, brings the air in fuel system and be difficult to drain by wet filter core
The problem of.The air that can not drain with fuel flow hinders the proper flow and supply of fuel oil in fuel system accumulated inside,
So that engine has the case where leading to engine misses because of failure of oil feed in anxious accelerating mode.
In order to cope with the case where above-mentioned air gathers in fuel system, existing countermeasure has:
1. increasing porous snorkel in filter core inner, it is expected that being crushed the air of agglomerate with porous snorkel
For multiple small air mass, lead to flame-out risk to reduce the possible engine of agglomerate air mass and be emptied.
The problem of this scheme is brought has:
(1) snorkel is fixed complicated, and part is more, and cleaner structure is complicated；
(2) burr at porous snorkel punching edge is difficult to handle clean, and snorkel is arranged on the inside of filter core,
This burr or impurity for being difficult to fully control, is arranged in inside filter core, has direct risk to the normal work of system.
2. opening aperture in filter element upper cover, the materials such as filling sintered copper in aperture, it is expected that by the gas on the outside of filter core with system
The mode of the small air mass of acceptable is by aperture and sintered copper, into inside filter core.
The problem of this scheme is brought has:
(1) porosity controlling of sintered copper is difficult to unanimously, have any problem to the consistency control of filter efficiency；
(2) the fixation reliability of sintered copper is difficult to confirm, there is the risk of filter core inside and outside " short circuit ", therefore this side
Case can be only applied on prefilter at present, cannot apply in refined filtration.
(3) sintered copper contains copper, and the fuel oil contacted with copper has to fuel system nocuousness.
3. additionally increasing a hole outside filter block, then outside filter for the filter being arranged on the pressure side
An exhaust pipe is connect, gas is discharged.
This scheme has the defects of more increase oil pipes, at high cost, difficult arrangement, the poor appearance of engine.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of diesel fuel filters, so that the air in existing fuel system be overcome to be difficult to lead to
The shortcomings that crossing wet filter core to drain, and in fuel system accumulated inside, hindering the proper flow and supply of fuel oil.
To achieve the above object, the present invention provides a kind of diesel fuel filters comprising: shell, filter core, filter block and core
Son.Filter core is built in the inside of shell；Filter block is set to the top of shell, oil inlet and oil outlet is offered on filter block, and filter
There is oil outlet, oil outlet is to be connected to filter core and oil outlet in seat；Fuse is solid stepped shaft structure, and fuse is set to out
In oilhole, and fuse is to cooperatively form gap ventilation device with oil outlet；Wherein, fuse have integrally formed first segment and
Second segment, and first segment has first diameter, second segment has second diameter, and first diameter is greater than second diameter；Wherein, fuse
The axial direction of first segment offer at least one slot, and at least one slot is flowed through with for fuel oil and air；Wherein, fuse
First segment in oil outlet be located at close to filter core one end, second segment in oil outlet be located at close to oil outlet one end.
Preferably, in above-mentioned technical proposal, the first segment of fuse has the first length, and second segment has the second length, and
First length is less than the second length.
Preferably, in above-mentioned technical proposal, oil outlet is unthreaded hole.
Preferably, in above-mentioned technical proposal, first segment and oil outlet are interference fit.
Preferably, in above-mentioned technical proposal, second segment and oil outlet are small―gap suture cooperation.
Preferably, in above-mentioned technical proposal, the quantity of at least one slot is four.
Compared with prior art, the invention has the following beneficial effects: diesel fuel filter of the invention, structure is simple, no
Additional arrangement space is needed, it is low in cost, and the air inside filter can be discharged, to ensure that the normal of fuel oil
Flowing and supply.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of diesel fuel filter according to the present invention.
Fig. 2 is the enlarged diagram of the gap ventilation device of diesel fuel filter in Fig. 1.
Fig. 3 is the schematic view of the front view of the fuse of diesel fuel filter according to the present invention.
Fig. 4 is the schematic perspective view of the fuse of diesel fuel filter according to the present invention.
Main appended drawing reference explanation:
1- shell, 2- filter core, 3- filter block, 31- oil inlet, 32- oil outlet, 33- oil outlet, 4- fuse, 41- first segment,
411- first diameter, the first length of 412-, 42- second segment, 421- second diameter, the second length of 422-, 43- slot, the gap 5- are logical
Depressed structure.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figures 1 to 4, Fig. 1 is the structural schematic diagram of diesel fuel filter according to the present invention, and Fig. 2 is diesel oil in Fig. 1
The enlarged diagram of the gap ventilation device 5 of filter, Fig. 3 are the main view knots of the fuse 4 of diesel fuel filter according to the present invention
Structure schematic diagram, Fig. 4 are the schematic perspective views of the fuse 4 of diesel fuel filter according to the present invention.It is specific real according to the present invention
Apply a kind of diesel fuel filter of mode comprising: shell 1, filter core 2, filter block 3 and fuse 4.Filter core 2 is built in the interior of shell 1
Portion；Filter block 3 is set to the top of shell 1, oil inlet 31 and oil outlet 32 is offered on filter block 3, and have oil outlet in filter block 3
33, oil outlet 33 is to be connected to filter core 2 and oil outlet 32；Fuse 4 is solid stepped shaft structure, and fuse 4 is set to oil outlet
In 33, and fuse 4 is to cooperatively form gap ventilation device 5 with oil outlet 33；Wherein, fuse 4 has integrally formed first
Section 41 and second segment 42, and first segment 41 has first diameter 411, second segment 42 has second diameter 421, first diameter 411
Greater than second diameter 421；Wherein, the axial direction of the first segment 41 of fuse 4 offers at least one slot 43, and at least one slot 43 is used
So that fuel oil and air flow through；Wherein, the first segment 41 of fuse 4 is located at close to one end of filter core 2 in oil outlet 33, the
It is located in oil outlet 33 close to one end of oil outlet 32 for two section 42.
Preferably, the first segment 41 of fuse 4 has the first length 412, and second segment 42 has the second length 422, and first
Length 412 is less than the second length 422；Oil outlet 33 is unthreaded hole；First segment 41 and oil outlet 33 are interference fit；Second segment 42 with
Oil outlet 33 is small―gap suture cooperation；The quantity of at least one slot 43 is four.
In practical applications, diesel fuel filter of the invention is on the oil outlet 32 of filter compared to conventional filter
It is disposed with gap ventilation device 5, allows the air being present in inside filter with the flowing of fuel oil slowly with small air mass
Mode drain, be unlikely to accumulate in the proper flow of filter internal constraint fuel oil, specifically, gap ventilation device 5 is
It is cooperatively formed by the oil outlet 33 and fuse 4 of the oil outlet 32 of connection filter, oil outlet 33 is unthreaded hole and has diameter, fuse
4 two sections of diameters are unequal (i.e. the first diameter 411 of first segment 41 and the second diameter 421 of second segment 42 is unequal), and the
One diameter 411 is greater than second diameter 421.The first diameter 411 of fuse 4 is straight with the oil outlet 33 that is connected to filter oil outlet 32
Diameter interference fit (i.e. first segment 41 and oil outlet 33 are interference fit), so that fuse 4 is with the close firm contact of filter block 3 one
It rises.Because the axial direction of 4 first segment 41 of fuse is opened there are four slot 43, although 4 first segment 41 of fuse is matched with 33 interference of oil outlet
It closes, the air nor affected in fuel oil and system is flowed by four slots 43.And the second diameter 421 of fuse 4 be connected to filtering
The diameter of the oil outlet 33 of device oil outlet 32 is small―gap suture cooperation (i.e. second segment 42 and oil outlet 33 are small―gap suture cooperation), the two
The small―gap suture of formation is while guaranteeing that filter is effectively vented, it is ensured that the impurity of bulky grain degree is isolated, cannot be introduced into
Downstream generates damage to fuel system.
In short, diesel fuel filter of the invention has the following beneficial effects:
1. structure is simple, additional arrangement space is not needed；
2. low in cost, avoid additional arrangement evacuated tube, simultaneously because arranged on filter base rather than
It is arranged on filter core, so not having to change filter core, filter core can be low in cost directly with original filter core；
3., completely can be to avoid the risk of filter core inside and outside " short circuit " using reliable；
4. having a wide range of application, the filter for being arranged in zone of positive pressure and negative pressuren zone can be used；
5. the air inside filter can be discharged, to ensure that the proper flow and supply of fuel oil.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (6)
1. a kind of diesel fuel filter characterized by comprising
Shell；
Filter core is built in the inside of the shell；
Filter block is set to the top of the shell, and oil inlet and oil outlet, and tool in the filter block are offered on the filter block
There is oil outlet, the oil outlet is to be connected to the filter core and the oil outlet；And
Fuse is solid stepped shaft structure, and the fuse is set in the oil outlet, and the fuse to it is described
Oil outlet cooperatively forms gap ventilation device；
Wherein, the fuse has integrally formed first segment and a second segment, and the first segment has a first diameter, and described the
Two sections have second diameter, and the first diameter is greater than the second diameter；
Wherein, the axial direction of the first segment of the fuse offers at least one slot, and at least one described slot is with for combustion
Oil and air flow through；
Wherein, the first segment of the fuse is located in the oil outlet close to one end of the filter core, the second segment
It is located in the oil outlet close to one end of the oil outlet.
2. diesel fuel filter according to claim 1, which is characterized in that the first segment of the fuse has the first length
Degree, the second segment has the second length, and first length is less than second length.
3. diesel fuel filter according to claim 1, which is characterized in that the oil outlet is unthreaded hole.
4. diesel fuel filter according to claim 3, which is characterized in that the first segment is matched with the oil outlet for interference
It closes.
5. diesel fuel filter according to claim 3, which is characterized in that the second segment is small―gap suture with the oil outlet
Cooperation.
6. diesel fuel filter according to claim 1, which is characterized in that the quantity of at least one slot is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123188.7A CN108331689B (en) | 2018-02-07 | 2018-02-07 | Diesel fuel filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123188.7A CN108331689B (en) | 2018-02-07 | 2018-02-07 | Diesel fuel filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108331689A CN108331689A (en) | 2018-07-27 |
| CN108331689B true CN108331689B (en) | 2019-08-30 |
Family
ID=62927102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810123188.7A Active CN108331689B (en) | 2018-02-07 | 2018-02-07 | Diesel fuel filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108331689B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953022A (en) * | 2018-10-09 | 2018-12-07 | 广西玉柴机器股份有限公司 | Prevent the diesel fuel filter of gather qi together |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100354087B1 (en) * | 1999-12-21 | 2002-09-26 | 기아자동차주식회사 | Fuel filter assembly having a heating part in a diesel engine |
| CN201953535U (en) * | 2010-12-23 | 2011-08-31 | 方亮 | Exchangeable diesel oil filter cleaner |
| CN202900495U (en) * | 2012-11-13 | 2013-04-24 | 奥凯嘉集团有限公司 | Gasoline filter |
| CN204783390U (en) * | 2015-07-14 | 2015-11-18 | 浙江鸿锐汽配股份有限公司 | Filter element group spare of filter |
| CN105134436A (en) * | 2015-08-24 | 2015-12-09 | 台州万荣机械有限公司 | Fuel oil sedimentation cup |
| CN106499554A (en) * | 2016-12-29 | 2017-03-15 | 广西华原过滤系统股份有限公司 | A kind of have degassing function diesel filter |
| CN207935019U (en) * | 2018-02-07 | 2018-10-02 | 广西玉柴机器股份有限公司 | Diesel fuel filter |
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2018
- 2018-02-07 CN CN201810123188.7A patent/CN108331689B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108331689A (en) | 2018-07-27 |
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