CN107061084A - Filter structure of two-way heat power expansion - Google Patents
Filter structure of two-way heat power expansion Download PDFInfo
- Publication number
- CN107061084A CN107061084A CN201611238487.2A CN201611238487A CN107061084A CN 107061084 A CN107061084 A CN 107061084A CN 201611238487 A CN201611238487 A CN 201611238487A CN 107061084 A CN107061084 A CN 107061084A
- Authority
- CN
- China
- Prior art keywords
- housing
- oil
- gas dispersion
- dispersion pipe
- filter core
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 claims abstract description 37
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 239000006185 dispersion Substances 0.000 claims description 43
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 239000000446 fuel Substances 0.000 abstract description 12
- 239000002828 fuel tank Substances 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/003—Filters in combination with devices for the removal of liquids
- B01D36/006—Purge means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/153—Anti-leakage or anti-return valves
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/29—Filter cartridge constructions
- B01D2201/291—End caps
- B01D2201/295—End caps with projections extending in a radial outward direction, e.g. for use as a guide, spacing means
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention gives a kind of filter structure of two-way heat power expansion, including housing and filter core, chamber is provided with housing, housing upper surface is provided with oil inlet and oil-out, filter core is arranged in chamber, and the oil-out that fluid sequentially passes through the oil inlet of housing, the chamber of housing, filter core and housing constitutes the filtration channel that fluid passes through；Check valve is provided with the filtration channel of housing oil-out position.The flow direction of check valve limitation fluid is to supply rail system from fuel tank to oil pump and high pressure, block the passage of fluid backflow, avoid causing gassy in fuel system pipeline because oil flow back into fuel tank, air forms vapour lock in oil circuit, stop working after causing engine can not start or start.
Description
Technical field
The present invention relates to a kind of cleaner, particularly a kind of water-oil separating filtering with water-oil separating, gas dispersion function
Device.
Background technology
The effect of cleaner is to filter out the objectionable impurities and moisture in fuel system in diesel car, and protection engine is just
Often work, reduces abrasion, it is to avoid block, and improves engine life, and fluid supplies rail system from the fuel tank of vehicle to oil pump and high pressure
General to pass through two-stage cleaner, at present, the cleaner of diesel vehicle only has filtration, when vehicle is not run, in Fuel System
Part fluid in system flows by oil pump and cleaner to fuel tank direction, causes air to be formed in oil circuit, when being again started up
Air produces vapour lock in oil transfer pump during engine, and oil transfer pump easily dallies, and causes that not fuel feeding or fuel delivery are very few, and vehicle is opened again
When dynamic, engine is difficult to start, and even if starting, operating is also unstable, or even automatically extinguishing.
In addition, may contain a small amount of air into the fluid in fuel system, under negative pressure state, gas is analysed from fuel oil
Go out and assemble in cleaner, the gas in cleaner can be more and more, accumulation forms big stock bubble, and big stock bubble is entered by oil pump
In engine, also it is easily caused that engine oil is unstable to be caused to stop working.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of bubble simple in construction, preventing oil return and big stock and enter combustion
The filter structure of two-way heat power expansion of oil system.
In order to solve the above technical problems, the invention provides a kind of filter structure of two-way heat power expansion, including housing and filter core, housing
Interior to be provided with chamber, housing upper surface is provided with oil inlet and oil-out, and filter core is arranged in chamber, and fluid sequentially passes through entering for housing
Hydraulic fluid port, the chamber of housing, the oil-out of filter core and housing constitute the filtration channel that fluid passes through；
Check valve is provided with the filtration channel of housing oil-out position.
After such structure, the flow direction of check valve limitation fluid is to supply rail system from fuel tank to oil pump and high pressure
System, blocks the passage of fluid backflow, it is to avoid cause gassy in fuel system pipeline because oil flow back into fuel tank, air is in oil
Vapour lock is formed in road, is stopped working after causing engine can not start or start.
For the clearer technology contents for understanding the present invention, this filter structure of two-way heat power expansion is referred to as this filtering below
Device.
The check valve of this cleaner includes valve plate and the umbellate form bonnet that can be deformed upon, and valve plate is fixed in filtration channel and leaned on
At nearly housing oil-out position, some oil guiding holes, the filtration channel of some oil guiding hole connection valve plate both sides, umbellate form are provided with valve plate
It is fixed in the middle part of bonnet on valve plate, the fluid that umbellate form bonnet is covered in the oil guiding hole of valve plate, filtration channel first passes through leading for valve plate
Oilhole passes through umbellate form bonnet again；After such structure, check valve it is simple in construction, using effect is good, and cheap.
The filter core endoporus of this cleaner is fixed with gas dispersion pipe, gas dispersion pipe upper port close to housing oil-out,
Gas dispersion pipe separates the oil-out of filter core endoporus and housing, and fluid enters gas dispersion by the lower port of gas dispersion pipe
Pipe is interior and then flows into the oil-out of housing, and the valve plate of check valve is fixed on gas dispersion pipe at housing oil-out position；This
Cleaner was used after a period of time, and more air is built up in chamber, and air is smaller due to density, the top in filter core, fluid
Then on the downside of air, after such structure, gas dispersion pipe can completely cut off big stock air, it is to avoid big stock air is directly arrived
Up to the oil-out of housing.
The gas dispersion pipe of this cleaner is Concentric Reducers, and gas dispersion pipe is including the different body in some apertures and extremely
A few reducing diameter part, the aperture of distribution and the body progressively reduces some bodys from top to bottom vertically successively, arbitrary neighborhood two
Connected between individual body by reducing diameter part, reducing diameter part is provided with the gas port of connection filter core endoporus and gas dispersion pipe orifice, single
It is fixed on to the valve plate of valve at the close housing oil-out position in gas dispersion pipe top；After such structure, air is built up
On the top of filter core, the air of big stock passes through the metering-orifice of gas dispersion device, is dispersed into the minute bubbles and oil-out less than 0.8mm
The fuel oil mixing at place, and then follow fluid to be discharged from the oil-out of housing, it is to avoid big stock air is directly entered oil pump or high pressure is supplied
In rail system, influence vehicle is normally used.
The filter core of this cleaner is fixed on middle part in housing cavity, and gas dispersion pipe lower end is fixed with funnelform diffusion
Cone, diffusing cone is stretched into the bottom of housing cavity, and the aperture suitable for reading of diffusing cone is less than the aperture of the lower opening of diffusing cone；Using this
After the structure of sample, oil flows through from the surface of diffusing cone, and speed is increasingly slower (diffusing cone top area is small, and bottom area is big), by
It is more than the surface tension of oil in the surface tension of water, tiny water droplet is accumulated into flood drop on diffusing cone surface, in the work of gravity
Under, the bottom of cleaner is fallen on, the effect of separation water is reached.
Filter screen is installed at the lower opening of the diffusing cone of this cleaner；After such structure, after such structure,
Big water droplet in oil further improves the effect of the filter water of whole cleaner by strainer filtering.
Brief description of the drawings
Fig. 1 is the structural representation of this filter embodiment.
Fig. 2 is the structural representation of this filter embodiment gas dispersion pipe.
Fig. 3 is the structural representation of this filter embodiment check valve.
Embodiment
As shown in Figures 1 to 3
This cleaner includes housing and filter core 2.
Housing is substantially in cylinder, and housing includes upper lid 11 and base 12, and envelope is coordinated between case top lid 11 and base 12
Close, the bottom of base 12 is provided with discharging valve 12a, form chamber 13 between upper lid 11 and base 12 inside, the upper surface of lid 11 be provided with into
Hydraulic fluid port 11a and oil-out 11b, oil inlet 11a are in upper lid 11 close to its marginal position, and oil-out 11b is in the centers of Shang Gai 11
Position.
Filter core 2 is arranged on the upper middle part of chamber 13, is sealed between the bottom of filter core 2 and the side wall of chamber 13 by sealing ring, filters
The filtering paper structure of core 2 is ring-type, and the endoporus upper port of filter core 2 is the outlet that fluid flows out, the endoporus upper port of filter core 2 alignment housing
Closed between oil-out 11b, and the endoporus upper port of filter core 2 and the oil-out 11b of housing by gasket ring 3, the side of filter core 2
There is gap between wall and the side wall of chamber 13.
The endoporus of filter core 2, which fixes (engaging), gas dispersion pipe 4, and gas dispersion pipe 4 is Concentric Reducers, gas dispersion
Pipe 4 includes the different body and two reducing diameter parts in three apertures, three bodys successively vertically the aperture of distribution and three bodys from
Progressively reduce under up to, connected between the body that arbitrary neighborhood is two by reducing diameter part, opened in the footpath contracting portion in lower position
There is the gas port 41 of multiple connection endoporus of filter core 2 and the endoporus of gas dispersion pipe 4, the diameter of gas port 41 is much smaller than gas dispersion pipe
The diameter of 4 bottoms, the upper end of gas dispersion pipe 4 is fastened on the marginal position of the endoporus of filter core 2, and the engaging of the lower end of gas dispersion pipe 4 has leakage
Bucket-shaped diffusing cone 5, diffusing cone 5 is stretched into the bottom of housing cavity 13, and the aperture suitable for reading of diffusing cone 5 is less than diffusing cone 5
Filter screen 51 is installed at the aperture of lower opening, the lower opening of diffusing cone 5.
The upper port of gas dispersion pipe 4 is resisted against at the endoporus upper port of filter core 2, and gas dispersion pipe 4 is by the endoporus of filter core 2 and housing
Oil-out 11b separate, fluid is entered in gas dispersion pipe 4 by the lower port of gas dispersion pipe 4 and then flows into going out for housing
Hydraulic fluid port 11b.
Check valve 6 is provided with the gas dispersion pipe 4 of housing oil-out 11b positions, check valve 6 includes valve plate 61 and umbrella
Type bonnet 62, the valve plate 61 of check valve 6 is fixed on the top of gas dispersion pipe 4 at housing oil-out 11b positions, on valve plate 61
A mounting hole 61b and multiple oil guiding hole 61a are provided with, mounting hole 61b is in the center of valve plate 61, multiple oil guiding hole 61a
The pore space of gas dispersion pipe 4 of the both sides of valve plate 61 is connected, the flexible material that the use of umbellate form bonnet 62 can be deformed upon is (such as：Rubber
Glue, soft plastic etc.), the middle part of umbellate form bonnet 62 is extended with the stick harness 62a coordinated with the mounting hole 61b of valve plate 61, umbellate form bonnet 62
The oil guiding hole 61a of valve plate 61 is covered, umbellate form bonnet 62 is in the upside of valve plate 61；When fluid flows from fuel tank to oil pump direction, gas
The oil guiding hole 61a that fluid in body disperse pipe 4 first passes through valve plate 61 passes through umbellate form bonnet 62 again.
Fluid sequentially pass through the oil inlet 11a of housing, the chamber 13 of housing, filter core 2 filter, the endoporus of filter core 2, gas dispersion
The oil-out 11b of pipe 4, check valve 6 and housing constitutes the filtration channel that fluid passes through.
In use, this cleaner is arranged on oil guiding hole 61a and umbellate form bonnet 62 in the fuel system of vehicle, fluid passed through
Filter passage is flowed in next stage cleaner or oil pump, and fluid enters outside case inside wall and filter core 2 from the oil inlet 11a of housing
In chamber 13 between the wall of side, then fluid enters filter core 2, and shallow bid air and a small amount of water may be contained in fluid, and shallow bid is empty
Gas is built up in filter core 2 and forms big stock air, and the density of air is smaller, the top in filter core 2, due to gas dispersion pipe 4
Gas port 41 is provided with the contracting portion of footpath, the air of big stock is dispersed into shallow bid air by gas port 41 and is directly entered gas dispersion pipe 4
It is interior, and then follow fluid to be discharged from the oil-out 11b of housing, it is to avoid big stock air is directly entered oil pump or high pressure supplies rail system
In, influence vehicle is normally used；
Similarly water is also built up, and because the density ratio fluid of water and the density of air are big, big water droplet is precipitated to through filtration core 2
The bottom of chamber 13, larger water droplet forms big water droplet in the presence of diffusing cone 5 and is precipitated to chamber 13, and less water droplet passes through
With further filtering and the aggregation of specific coatings filter screen 56, the bottom that chamber 13 is precipitated to after a certain size is reached, a period of time
Water can be discharged by opening the discharging valve 12a of housing bottom afterwards；
Fluid can flow through from the oil guiding hole 61a of single-phase valve valve plate 61 between umbellate form bonnet 62 during this, it is ensured that mistake
Filter the unimpeded of passage.
In the oily air pump inoperative of fuel system, the fluid in fuel system has the trend of backflow, this cleaner it is unidirectional
Valve 6 is closed, and is specially：The umbellate form bonnet 62 of single-phase valve is close to valve plate 61 in the presence of oil pressure, and is completely covered by valve plate
61 oil guiding hole 61a, forces fluid not flow back, it is to avoid because fuel flow returns make gassy in fuel system pipeline.
Above-described is only one embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, under the premise without departing from the principles of the invention, some variations and modifications can also be made, these also should be regarded as belonging to this hair
Bright protection domain.
Claims (6)
1. a kind of filter structure of two-way heat power expansion, including housing and filter core, be provided with chamber in housing, housing upper surface be provided with oil inlet and
Oil-out, filter core is arranged in chamber, and fluid sequentially passes through the fuel-displaced of the oil inlet of housing, the chamber of housing, filter core and housing
Mouth constitutes the filtration channel that fluid passes through；
It is characterized in that：
Check valve is provided with the filtration channel of housing oil-out position.
2. filter structure of two-way heat power expansion according to claim 1, it is characterized in that：
The check valve includes valve plate and the umbellate form bonnet that can be deformed upon, and valve plate is fixed in filtration channel fuel-displaced close to housing
At mouth position, it is provided with valve plate solid in the middle part of some oil guiding holes, the filtration channel of some oil guiding holes connection valve plate both sides, umbellate form bonnet
It is scheduled on valve plate, the oil guiding hole that the fluid that umbellate form bonnet is covered in the oil guiding hole of valve plate, filtration channel first passes through valve plate passes through again
Umbellate form bonnet.
3. filter structure of two-way heat power expansion according to claim 2, it is characterized in that：
The filter core endoporus is fixed with gas dispersion pipe, and gas dispersion pipe upper port is close to the oil-out of housing, gas dispersion pipe
The oil-out of filter core endoporus and housing is separated, fluid is entered in gas dispersion pipe and then flowed by the lower port of gas dispersion pipe
Enter the oil-out of housing, the valve plate of check valve is fixed on gas dispersion pipe at housing oil-out position.
4. filter structure of two-way heat power expansion according to claim 3, it is characterized in that：
The gas dispersion pipe is Concentric Reducers, and gas dispersion pipe includes the different bodys and at least one undergauge in some apertures
Portion, the distribution and aperture of the body progressively reduces from top to bottom vertically successively of some bodys, the body that arbitrary neighborhood is two it
Between connected by reducing diameter part, reducing diameter part be provided with connection filter core endoporus and gas dispersion pipe orifice gas port, the valve plate of check valve
Gas dispersion pipe top is fixed at housing oil-out position.
5. filter structure of two-way heat power expansion according to claim 3, it is characterized in that：
The filter core is fixed on middle part in housing cavity, and gas dispersion pipe lower end is fixed with funnelform diffusing cone, and diffusing cone is stretched
Enter in the bottom of housing cavity, the aperture suitable for reading of diffusing cone is less than the aperture of the lower opening of diffusing cone.
6. filter structure of two-way heat power expansion according to claim 5, it is characterized in that：
Filter screen is installed at the lower opening of the diffusing cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611238487.2A CN107061084A (en) | 2016-12-28 | 2016-12-28 | Filter structure of two-way heat power expansion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611238487.2A CN107061084A (en) | 2016-12-28 | 2016-12-28 | Filter structure of two-way heat power expansion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061084A true CN107061084A (en) | 2017-08-18 |
Family
ID=59624318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611238487.2A Pending CN107061084A (en) | 2016-12-28 | 2016-12-28 | Filter structure of two-way heat power expansion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061084A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404187A (en) * | 2018-10-25 | 2019-03-01 | 上海世德子汽车零部件有限公司 | A kind of screen system of the umbrella-shaped structure of electric fuel punp |
| CN112196709A (en) * | 2020-11-11 | 2021-01-08 | 蚌埠国威滤清器有限公司 | Fuel filter |
| CN112302770A (en) * | 2019-08-01 | 2021-02-02 | 泰连挪威公司 | Sensor head with return line |
| US11130082B2 (en) | 2019-11-13 | 2021-09-28 | Caterpillar Inc. | Filter pulsation dampening device |
| CN113757009A (en) * | 2021-09-08 | 2021-12-07 | 江西三格滤清器制造有限公司 | Fuel filter |
| US11207619B2 (en) | 2019-11-13 | 2021-12-28 | Caterpillar Inc. | Filter pulsation dampening device |
| US20240084767A1 (en) * | 2022-09-14 | 2024-03-14 | Zhejiang Weitai Automobile Parts Co., Ltd. | Fuel-water separation filter element capable of exhausting gas, and filter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1124056A2 (en) * | 2000-02-12 | 2001-08-16 | Robert Bosch Gmbh | Fuel filter |
| CN202468107U (en) * | 2012-01-31 | 2012-10-03 | 平原滤清器有限公司 | Filter element and fuel filter thereof |
| CN203560024U (en) * | 2013-10-28 | 2014-04-23 | 苏州工业园区达菲特过滤技术有限公司 | Manual fuel pump with clean end |
| CN203939605U (en) * | 2014-05-08 | 2014-11-12 | 平原滤清器有限公司 | A kind of filter core upper end cap and use the filter cleaner of this upper end cap |
| CN205135868U (en) * | 2015-11-04 | 2016-04-06 | 合肥威尔燃油系统股份有限公司 | Fuel filter reaches engine including it |
| CN206274021U (en) * | 2016-12-28 | 2017-06-23 | 蚌埠国威滤清器有限公司 | Filter structure of two-way heat power expansion |
-
2016
- 2016-12-28 CN CN201611238487.2A patent/CN107061084A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1124056A2 (en) * | 2000-02-12 | 2001-08-16 | Robert Bosch Gmbh | Fuel filter |
| CN202468107U (en) * | 2012-01-31 | 2012-10-03 | 平原滤清器有限公司 | Filter element and fuel filter thereof |
| CN203560024U (en) * | 2013-10-28 | 2014-04-23 | 苏州工业园区达菲特过滤技术有限公司 | Manual fuel pump with clean end |
| CN203939605U (en) * | 2014-05-08 | 2014-11-12 | 平原滤清器有限公司 | A kind of filter core upper end cap and use the filter cleaner of this upper end cap |
| CN205135868U (en) * | 2015-11-04 | 2016-04-06 | 合肥威尔燃油系统股份有限公司 | Fuel filter reaches engine including it |
| CN206274021U (en) * | 2016-12-28 | 2017-06-23 | 蚌埠国威滤清器有限公司 | Filter structure of two-way heat power expansion |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404187A (en) * | 2018-10-25 | 2019-03-01 | 上海世德子汽车零部件有限公司 | A kind of screen system of the umbrella-shaped structure of electric fuel punp |
| CN109404187B (en) * | 2018-10-25 | 2024-04-26 | 上海世德子汽车零部件有限公司 | Umbrella-shaped structure filter screen system of electric fuel pump |
| CN112302770A (en) * | 2019-08-01 | 2021-02-02 | 泰连挪威公司 | Sensor head with return line |
| US11130082B2 (en) | 2019-11-13 | 2021-09-28 | Caterpillar Inc. | Filter pulsation dampening device |
| US11207619B2 (en) | 2019-11-13 | 2021-12-28 | Caterpillar Inc. | Filter pulsation dampening device |
| US11691096B2 (en) | 2019-11-13 | 2023-07-04 | Caterpillar Inc. | Filter pulsation dampening device |
| CN112196709A (en) * | 2020-11-11 | 2021-01-08 | 蚌埠国威滤清器有限公司 | Fuel filter |
| CN113757009A (en) * | 2021-09-08 | 2021-12-07 | 江西三格滤清器制造有限公司 | Fuel filter |
| US20240084767A1 (en) * | 2022-09-14 | 2024-03-14 | Zhejiang Weitai Automobile Parts Co., Ltd. | Fuel-water separation filter element capable of exhausting gas, and filter |
| US12116965B2 (en) * | 2022-09-14 | 2024-10-15 | Zhejiang Weitai Automobile Parts Co., Ltd. | Fuel-water separation filter element capable of exhausting gas, and filter |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
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| RJ01 | Rejection of invention patent application after publication |