CN106762274A - A kind of two cavity changeable type environmental-protective filters - Google Patents
A kind of two cavity changeable type environmental-protective filters Download PDFInfo
- Publication number
- CN106762274A CN106762274A CN201710084750.5A CN201710084750A CN106762274A CN 106762274 A CN106762274 A CN 106762274A CN 201710084750 A CN201710084750 A CN 201710084750A CN 106762274 A CN106762274 A CN 106762274A
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- China
- Prior art keywords
- filter
- coarse
- connector
- coarse filtration
- cavitys
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Classifications
-
- 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
-
- 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
- F02M37/24—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by water separating means
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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 present invention relates to a kind of two cavitys changeable type environmental-protective filter.Including fine filter, the coarse filter and between fine filter and coarse filter and connection both connector arranged in above-below direction, connector is provided with oil inlet and oil-out, oil inlet is connected with coarse filter, fine filter is connected by the second channel inside connector with oil-out, and the first passage and third channel of connection fine filter and coarse filter are additionally provided with inside connector.As shown from the above technical solution, fine filter and coarse filter are separately positioned on the present invention upper-lower position of connector, make product structure compacter；The use of pipe joint and connecting line is not only reduced simultaneously, the use of material is also reduced, risk of leakage is reduced, and improves production efficiency；Filter tank reduces the harm to environment from the environment-friendly materials that can be recycled；The design of changeable type filter core, reduces the waste of housing, reduces the maintenance cost of end user.
Description
Technical field
The present invention relates to cleaner field, and in particular to a kind of two cavitys changeable type environmental-protective filter.
Background technology
At present, use two ways the setting of cleaner more：One kind is oil water separator（It is called pre-flock or coarse filtration）And combustion
Oil rectifier（It is called refined filtration）It is connected in an oil circuit by pipeline, as shown in figure 1, the diesel oil of oil inlet pipe 1 enters coarse filtration 2,
After being filtered in coarse filtration 2, into the pipeline 3 being connected with refined filtration 4, it is flowed into refined filtration 4 by pipeline 3, the diesel oil after filtering enters
In entering pipeline 5 and down-stream system.This mode has the following disadvantages：1）Connecting line is long, and joint use is more, and seal point is more, leakage
Risk is high；2）Coarse filtration and refined filtration, it is necessary to housing at filter core and filter core is abandoned together, cause metal material after service life is reached
The waste of material, maintenance cost and Reuse of materials high cost；3）The oil product remained in during replacing in tank body is dropped, and causes the energy
Waste and environmental pollution；4）Assembly process and assembly station are more, and production cost is high.
Another way is by coarse filtration and refined filtration integrated series to a filter block, as shown in Fig. 2 diesel oil is from oil inlet pipe 6
Into coarse filter 7, after carrying out water-oil separating in coarse filter 7, by sharing the inner passage of filter block 8, enter in inflow fine filter 9
Row filtering, the diesel oil after filtering flows into down-stream system by pipeline 10.This mode has the following disadvantages：1）Coarse filtration and refined filtration are reaching
, it is necessary to filter core and filter case body are abandoned together after to service life, the waste of metal material, maintenance cost and material are caused
Recycle high cost；2）The oil product remained in during replacing in tank body is dropped, and causes energy waste and environmental pollution；3）Filter block
Build is big, and horizontal space takes big.
The content of the invention
It is an object of the invention to provide a kind of two cavitys changeable type environmental-protective filter, the cleaner structure is compact, collection
Into changing, degree is high, and replaceable filter element, housing are reusable.
To achieve the above object, present invention employs following technical scheme：Including the fine filter, thick arranged in above-below direction
Filter and between fine filter and coarse filter and connection both connector, described connector is provided with oil inlet and goes out
Hydraulic fluid port, described oil inlet is connected with coarse filter, and described fine filter is by the second channel and oil-out phase inside connector
Even, the first passage and third channel of connection fine filter and coarse filter are additionally provided with inside described connector.
Plunger hand pump is additionally provided with described connector, described plunger hand pump includes the first cavity being connected with coarse filter
And the second cavity being connected with fine filter, connected by the first check valve between the first described cavity and the second cavity, institute
The first cavity stated is connected by the first duct on plunger hand pump with coarse filter, and the second described cavity is by plunger hand pump
The second duct be connected with fine filter, and the second check valve is additionally provided between the second duct and fine filter.
Described coarse filter includes coarse filtration filter tank, coarse filtration filter core, filter core upper end cover and filter core bottom end cover, described coarse filtration filter
Tank is made up of nylon material, is connected through a screw thread between coarse filtration filter tank and connector, described coarse filtration filter core and filter core upper end cover
And be connected by hot plate welding between filter core bottom end cover.
Level sensor is provided with described coarse filter, described level sensor is arranged on the lower portion of coarse filtration filter tank
Put, described level sensor is float-type or electric pole type.
The inner surface of the coarse filtration filter tank and outer surface are respectively equipped with the interior reinforcement and external reinforcing ribs being longitudinally arranged, described
The bottom of coarse filtration filter tank is provided with six side's boss, and the upper position of the coarse filtration filter tank outer surface is provided with for marking or sticking sign
Smooth, cylindrical peripheral surface.
The coarse filtration filter core is demountable structure, and described filter core upper end cover engages with third channel, under described filter core
End cap fastens with the bottom of coarse filtration filter tank, and described filter core bottom end cover is provided with the first buckle, is set on described coarse filtration filter tank
There is the second buckle being engaged with the first buckle.
Described plunger hand pump is arranged on the middle part of connector, and plunger hand pump is integrated with connector or the outer company of being hung on
On junctor.
Described connector is provided with the mounting and fixing bracket assembled with vehicle, described mounting and fixing bracket and connector
It is integrally formed, and at least provided with three mounting holes on mounting and fixing bracket.
Described oil inlet, oil-out, first passage and second channel are respectively provided with two, are set in described third channel
There is the 3rd check valve.
Discharging valve is additionally provided with described coarse filter.
As shown from the above technical solution, fine filter and coarse filter are separately positioned on the present invention upper-lower position of connector,
Make compacter product structure, the reduction of vehicle installation steps, improve entrucking manufacturability；Not only reduce pipe joint and company simultaneously
The use on road is taken over, the use of material is also reduced, risk of leakage is reduced, production efficiency is improve；Filter tank is from recyclable
The environment-friendly materials for using, reduce the harm to environment；The design of changeable type filter core, reduces the waste of housing, reduces
The maintenance cost of end user.
Brief description of the drawings
Fig. 1 is the structural representation one of background of invention；
Fig. 2 is the structural representation two of background of invention；
Fig. 3 is front view of the invention；
Fig. 4 is the right view of Fig. 3；
Fig. 5 is internal structure schematic diagram of the invention；
Fig. 6 is internal structure schematic diagram of the invention two；
Fig. 7 is the A portions enlarged drawing of Fig. 6；
Fig. 8 is the stereogram of connector overlook direction of the present invention；
Fig. 9 is the stereogram that connector of the present invention looks up direction.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
A kind of two cavitys changeable type environmental-protective filter as shown in figure 3 to figure 7, including arrange in above-below direction fine filter 20,
Coarse filter 30 and between fine filter 20 and coarse filter 30 and connection both connector 40, connector 40 is provided with oil-feed
Mouthfuls 41 are connected with oil-out 42, oil inlet 41 with coarse filter 30, fine filter 20 pass through second channel 44 inside connector 40 and
Oil-out 42 is connected, and the first passage 43 and third channel of connection fine filter 20 and coarse filter 30 are additionally provided with inside connector 40
45.Preferably, connector 40 uses aluminum alloy materials, to meet the requirement of connection and support strength.Coarse filter 30 is arranged on
The bottom of connector 40, is easy to deposition of the water in oil after coarse filtration water-oil separating, is easy to discharging valve 60 to realize draining.
Further, oil inlet 41, oil-out 42, first passage 43 and second channel 44 are respectively provided with two, such as Fig. 8,
Shown in Fig. 9, the 3rd check valve 46 is provided with third channel 45.Namely first passage 43 sets two, by the 3rd check valve
46 are connected with third channel 45；Second channel 44 sets two, is connected with two oil-outs 42 respectively；3rd check valve 46 is limited
Fuel oil can only enter into the fine filter 20 on top from the coarse filter 30 of bottom.When actually used, can be according to vehicle connecting line
Deployment scenarios select one of oil inlet 41 and oil-out 42, and remaining hydraulic fluid port is closed using screw plug.
Further, connector 40 is provided with the mounting and fixing bracket 70 assembled with vehicle, mounting and fixing bracket 70 and company
Junctor 40 is integrally formed, and at least provided with three mounting holes 71 on mounting and fixing bracket 70.
Further, be additionally provided with plunger hand pump 50 on connector 40, plunger hand pump 50 include being connected with coarse filter 30 the
One cavity 51 and the second cavity 52 being connected with fine filter 20, it is unidirectional by first between the first cavity 51 and the second cavity 52
Valve 53 is connected, and the first cavity 51 is connected by the first duct 54 on plunger hand pump 50 with coarse filter 30, and the second cavity 52 passes through
The second duct 55 on plunger hand pump 50 is connected with fine filter 20, and it is single that second is additionally provided between the second duct 55 and fine filter 30
To valve 56.
Further, plunger hand pump 50 is arranged on the middle part of connector 40, and plunger hand pump 50 and connector 40 integrated
Body is hung on connector 40 outward.Plunger hand pump 50 can be adjusted as needed with the connection angle for being of connector 40；Together
When, plunger type hand pump 50 can be replaced using electrodynamic pump；Plunger hand pump 50 can also be modified to the short distance circular hand of diaphragm pattern
Pump.
Further, level sensor 80 is provided with coarse filter 30, level sensor 80 is arranged under coarse filtration filter tank 31
Portion position, level sensor 80 is float-type or electric pole type.When using, also level sensor 80 can be replaced with automatic draining dress
Put, realize automatic draining function.
Further, it is additionally provided with discharging valve 60 on coarse filter 30.
Further, coarse filter 30 includes coarse filtration filter tank 31, coarse filtration filter core 32, filter core upper end cover 33 and filter core bottom end cover
34, coarse filtration filter tank 31 is made up of nylon material, can be recycled, and can both realize lightweight, and energy resource consumption can be reduced again, and material is again
After producing level is high, and nylon material coordinates with aluminum alloy materials, the compatibility of storeroom is low, easy to disassemble；Coarse filtration filter tank 31
It is connected through a screw thread between connector 40, i.e., coarse filtration filter tank 31 is provided with external screw thread, connector 40 is provided with internal thread；Coarse filtration
It is connected by hot plate welding between filter core 32 and filter core upper end cover 33 and filter core bottom end cover 34, this kind of connected mode need not be used
Glue is bonded, it is to avoid the use of glue, reduces glue production and uses the influence to environment.When using, can be according to reality
Operating mode, selects central tube 391, and thin-walled 392 is set on central tube, to provide welding usability.
Further, the inner surface of coarse filtration filter tank 31 and outer surface be respectively equipped with the interior reinforcement 35 that is longitudinally arranged with it is additional
Strong muscle 36, interior reinforcement 35 can provide support for coarse filtration filter core 32, while increasing the intensity of coarse filtration filter tank 31；External reinforcing ribs 36
The intensity of coarse filtration filter tank 31 can be improved, while for dismounting coarse filtration filter tank 31 provides forced position；The bottom of coarse filtration filter tank 31 sets
There are six side's boss 37, be easy to traditional dismantling spanner dismounting coarse filtration filter tank 31；The upper position of the outer surface of coarse filtration filter tank 31 is provided with use
In marking or the smooth, cylindrical peripheral surface 38 of sticking sign.
Further, coarse filtration filter core 32 is demountable structure, after coarse filtration filter core 32 reaches service life, it is only necessary to change
Coarse filtration filter core 32, without metal material on coarse filtration filter core 32, electroless plating requirement, it is to avoid influence of the electroplating processes to environment；Filter
Core upper end cover 33 engages with third channel 45, and filter core bottom end cover 34 fastens with the bottom of coarse filtration filter tank 31, specifically, that is, filters
Core bottom end cover 34 is provided with the first buckle 341, and coarse filtration filter tank 31 is provided with the second buckle 311 being engaged with the first buckle 341.
When the old coarse filtration filter core 32 after service life is arrived is dismantled, the screw thread of coarse filtration of outwarding winding filter tank 31, downward drawing, coarse filtration filter core 32 can
Taken out of by coarse filtration filter tank 31；When assembling new coarse filtration filter core 32, first by the of the first buckle of coarse filtration filter core 32 and coarse filtration filter tank 31
Two buckles interlock, and now coarse filtration filter core 32 can be coaxial with coarse filtration filter tank 31, when coarse filtration filter tank 31 is with 40 threaded engagement of connector, slightly
Filter filter core 32 can be automatically inserted into the mating cavity body of third channel 45, facilitate coarse filtration filter core 32 to dismount.
The structure of fine filter of the present invention 20 is symmetrically arranged at the upper-lower position of connector 40, fine filter with coarse filter 30
20 except no discharging valve and level sensor, and remaining structure is consistent with coarse filter 30.I.e. fine filter 20 includes refined filtration filter tank
21st, refined filtration filter core 22, filter core upper end cover 23, filter core bottom end cover 24, the surfaces externally and internally of refined filtration filter tank 21 are respectively equipped with interior reinforcement
25 and external reinforcing ribs 26, the top of refined filtration filter tank 21 is provided with six side's boss 27, and the lower position of the outer surface of refined filtration filter tank 21 is provided with
Smooth, cylindrical peripheral surface 28 etc., its concrete structure and installation method etc. will not be repeated here, and can refer to coarse filter 30.
Operation principle of the invention and the course of work are as follows：
Oil product enters coarse filter 30 from oil inlet 41, after being filtered at the filter paper 39 of coarse filter 30, from coarse filtration filter core 32
Middle part enters third channel 45 by the centre bore 331 on filter core upper end cover 33, by after check valve 46 again by first passage 43
Into fine filter 20, after the filtering of refined filtration filter core 22, then connector is entered by the centre bore 241 on refined filtration filter core bottom end cover 24
Second channel 44 inside 40, and flowed out from oil-out 42, into down-stream system.
Change filter core after, using the pump oil of hand pump handle 57, oil product enters coarse filter from oil inlet 41, the oil product after filtering from
Centre bore 331 on coarse filtration filter core upper end cover 33, into the third channel 45 inside connector 40, in the shape that plunger hand pump 50 is inhaled
Under state, the first cavity 51 is entered by the first duct 54, by the first check valve 53 opened, into the second cavity 52；Plunger
The state that hand pump 50 goes out oil pressure is：First check valve 53 is closed, and oil product is by the second duct 55 and the second check valve 56 opened
Into fine filter 20, the function of the oily hand pump of exhaustion is realized（Exhaustion oil refers to the oil product by coarse filtration filter element filtering）.
In sum, the present invention is integrated into one by by the coarse filter and fine filter under original deployment conditions by connector
Body, and it is allowed to the function with coarse filtration filtering and refined filtration filtering.The beneficial effects of the present invention are：
（1）The connecting line between coarse filtration and refined filtration is eliminated, the use of joint is reduced, seal point is reduced, leakage is reduced
Risk；Material cost and manufacturing cost have been saved, pressure difference loss has been reduced, there is provided product usage cycles；Reduce pipeline and connect
The electroplating processes of head metalwork, reduce the harm to environment；
（2）Filter tank is designed using nylon material, and lightweight product design reduces energy resource consumption；Nylon material recycles degree
Height, reduces the harm to environment；
（3）During the cleaner maintaining, housing is without changing, it is only necessary to change filter core, cost of upkeep is low, old filter core does not have metal
Material, treatment classification is easy, environmental protection；
（4）The assembly technology of main engine plants or vehicle factory is optimized, assembly process, improve production efficiency is reduced；
（5）The pump housing of plunger hand pump is integrated with connector or separates plug-in, can be selected according to customer demand；Will the oily hand of exhaustion
The operation principle of pump is applied in the cleaner, reduces hand pump fault rate.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to model of the invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art are to technical side of the invention
Various modifications and improvement that case is made, all should fall into the protection domain of claims of the present invention determination.
Claims (10)
1. a kind of two cavitys changeable type environmental-protective filter, it is characterised in that：Including the fine filter arranged in above-below direction（20）、
Coarse filter（30）And positioned at fine filter（20）With coarse filter（30）Between and connection both connector（40）, described connection
Body（40）It is provided with oil inlet（41）With oil-out（42）, described oil inlet（41）With coarse filter（30）It is connected, described essence
Filter（20）By connector（40）Internal second channel（44）With oil-out（42）It is connected, described connector（40）It is internal
It is additionally provided with connection fine filter（20）With coarse filter（30）First passage（43）And third channel（45）.
2. two cavitys changeable type environmental-protective filter according to claim 1, it is characterised in that：Described connector（40）
On be additionally provided with plunger hand pump（50）, described plunger hand pump（50）Including with coarse filter（30）The first connected cavity（51）And
With fine filter（20）The second connected cavity（52）, described the first cavity（51）With the second cavity（52）Between it is single by first
To valve（53）Connection, the first described cavity（51）By plunger hand pump（50）On the first duct（54）With coarse filter（30）Phase
Even, the second described cavity（52）By plunger hand pump（50）On the second duct（55）With fine filter（20）It is connected, and second
Duct（55）With fine filter（30）Between be additionally provided with the second check valve（56）.
3. two cavitys changeable type environmental-protective filter according to claim 1, it is characterised in that：Described coarse filter（30）
Including coarse filtration filter tank（31）, coarse filtration filter core（32）, filter core upper end cover（33）And filter core bottom end cover（34）, described coarse filtration filter tank
（31）By nylon material is made, coarse filtration filter tank（31）With connector（40）Between be connected through a screw thread, described coarse filtration filter core
（32）With filter core upper end cover（33）And filter core bottom end cover（34）Between by hot plate welding be connected.
4. two cavitys changeable type environmental-protective filter according to claim 3, it is characterised in that：Described coarse filter（30）
Inside it is provided with level sensor（80）, described level sensor（80）It is arranged on coarse filtration filter tank（31）Lower position, it is described
Level sensor（80）It is float-type or electric pole type.
5. two cavitys changeable type environmental-protective filter according to claim 3, it is characterised in that：The coarse filtration filter tank（31）
Inner surface and outer surface be respectively equipped with the interior reinforcement being longitudinally arranged（35）With external reinforcing ribs（36）, the coarse filtration filter tank（31）
Bottom be provided with six side's boss（37）, the coarse filtration filter tank（31）The upper position of outer surface is provided with for marking or sticking sign
Smooth, cylindrical peripheral surface（38）.
6. two cavitys changeable type environmental-protective filter according to claim 3, it is characterised in that：The coarse filtration filter core（32）
It is demountable structure, described filter core upper end cover（33）With third channel（45）Engaging, described filter core bottom end cover（34）With it is thick
Filter filter tank（31）Bottom fasten, described filter core bottom end cover（34）It is provided with the first buckle（341）, described coarse filtration filter tank
（31）It is provided with and the first buckle（341）The second buckle being engaged（311）.
7. two cavitys changeable type environmental-protective filter according to claim 2, it is characterised in that：Described plunger hand pump
（50）It is arranged on connector（40）Middle part, and plunger hand pump（50）With connector（40）It is integrated or be hung on connector outward
（40）On.
8. two cavitys changeable type environmental-protective filter according to claim 1, it is characterised in that：Described connector（40）
It is provided with the mounting and fixing bracket assembled with vehicle（70）, described mounting and fixing bracket（70）With connector（40）One into
Type, and mounting and fixing bracket（70）On at least provided with three mounting holes（71）.
9. two cavitys changeable type environmental-protective filter according to claim 1, it is characterised in that：Described oil inlet
（41）, oil-out（42）, first passage（43）And second channel（44）It is respectively provided with two, described third channel（45）Inside set
There is the 3rd check valve（46）.
10. two cavitys changeable type environmental-protective filter according to claim 1, it is characterised in that：Described coarse filter
（30）On be additionally provided with discharging valve（60）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084750.5A CN106762274A (en) | 2017-02-16 | 2017-02-16 | A kind of two cavity changeable type environmental-protective filters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710084750.5A CN106762274A (en) | 2017-02-16 | 2017-02-16 | A kind of two cavity changeable type environmental-protective filters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106762274A true CN106762274A (en) | 2017-05-31 |
Family
ID=58958025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710084750.5A Pending CN106762274A (en) | 2017-02-16 | 2017-02-16 | A kind of two cavity changeable type environmental-protective filters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762274A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006987A (en) * | 2021-04-02 | 2021-06-22 | 上海弗列加滤清器有限公司 | Filter and vehicle |
| CN113669179A (en) * | 2021-09-02 | 2021-11-19 | 瑞安市环嘉滤清器有限公司 | Electric pump integrated fuel filter base assembly capable of automatically exhausting |
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| CN101260852A (en) * | 2007-03-07 | 2008-09-10 | 三菱电机株式会社 | Fuel supply device |
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| CN203822511U (en) * | 2014-03-25 | 2014-09-10 | 潍柴动力股份有限公司 | Fuel filter |
| CN206513481U (en) * | 2017-02-16 | 2017-09-22 | 合肥威尔燃油系统股份有限公司 | A kind of two cavity changeable type environmental-protective filters |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2348115A1 (en) * | 2000-07-25 | 2002-01-25 | Davco Technology, Llc | Fluid filter with pressure relief valve |
| US20080135469A1 (en) * | 2006-12-12 | 2008-06-12 | Filtrauto | Two-level fuel filter device |
| CN101260852A (en) * | 2007-03-07 | 2008-09-10 | 三菱电机株式会社 | Fuel supply device |
| CN103599649A (en) * | 2013-10-18 | 2014-02-26 | 周建伟 | Oil-water separation filter core and high-efficient fuel oil filtering device |
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| CN206513481U (en) * | 2017-02-16 | 2017-09-22 | 合肥威尔燃油系统股份有限公司 | A kind of two cavity changeable type environmental-protective filters |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113006987A (en) * | 2021-04-02 | 2021-06-22 | 上海弗列加滤清器有限公司 | Filter and vehicle |
| CN113006987B (en) * | 2021-04-02 | 2022-07-26 | 上海弗列加滤清器有限公司 | Filter and vehicle |
| CN113669179A (en) * | 2021-09-02 | 2021-11-19 | 瑞安市环嘉滤清器有限公司 | Electric pump integrated fuel filter base assembly capable of automatically exhausting |
| CN113669179B (en) * | 2021-09-02 | 2022-11-15 | 瑞安市环嘉滤清器有限公司 | Electric pump integrated fuel filter base assembly capable of automatically exhausting |
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Address after: No.59, fozhang Road, Hefei Economic and Technological Development Zone, Anhui 230000 Applicant after: Anhui Weil Low Carbon Technology Co.,Ltd. Address before: 230601 No.59, fozhang Road, Jingkai District, Hefei City, Anhui Province Applicant before: WAL FUEL SYSTEMS (HEFEI) Ltd. |
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Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |