CN107803060B - A kind of diesel fuel filter filter core - Google Patents
A kind of diesel fuel filter filter core Download PDFInfo
- Publication number
- CN107803060B CN107803060B CN201711053495.4A CN201711053495A CN107803060B CN 107803060 B CN107803060 B CN 107803060B CN 201711053495 A CN201711053495 A CN 201711053495A CN 107803060 B CN107803060 B CN 107803060B
- Authority
- CN
- China
- Prior art keywords
- filter core
- fluid channel
- filter
- level
- main body
- 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.)
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Links
- 239000002283 diesel fuel Substances 0.000 title claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 41
- 238000001914 filtration Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 238000013517 stratification Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 abstract description 5
- 239000000295 fuel oil Substances 0.000 abstract description 5
- 239000000356 contaminant Substances 0.000 abstract description 3
- 239000011162 core material Substances 0.000 description 76
- 239000012535 impurity Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- 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
- B01D35/005—Filters specially adapted for use in internal-combustion engine lubrication or fuel systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/232—Supported filter elements arranged for outward flow filtration with corrugated, folded or wound sheets
- B01D29/235—Supported filter elements arranged for outward flow filtration with corrugated, folded or wound sheets having a concertina shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
- B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/02—Filtering elements having a conical form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/20—Pressure-related systems for filters
- B01D2201/204—Systems for applying vacuum to filters
- B01D2201/208—Systems for applying vacuum to filters by venturi systems
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 invention discloses a kind of diesel fuel filter filter cores, including filter core main body, the filter core main body has axially penetrated through fluid channel, and the fluid channel is up-narrow and down-wide cone type structure, and the oil outlet of the filter core main body is formed in the minimum diameter end of the fluid channel.Compared with prior art, the present invention is by being up-narrow and down-wide cone type structure by the fluid channel of filter core main body, by changing the size of the upper lower section of frustum type chamber, it can control fuel oil and flow through the flow velocity of fluid channel, to change the negative pressure of fluid channel generation.Wherein, fluid channel is longer, and upper and lower area of section is than smaller, then faster by the flow velocity of oil outlet, the negative pressure closer to filter core main body upper end is bigger, and the ability of adsorbing contaminant is bigger, when guaranteeing that filter core resistance meets the requirement of fuel system, the filter efficiency of filter core main body is improved.
Description
Technical field
The present invention relates to filter cartridge construction technical field, especially a kind of diesel fuel filter filter core.
Background technique
Diesel fuel filter mainly for separating of the impurity in diesel oil and filters moisture as engine filtering device for diesel,
Guarantee the spatter property for entering the fuel oil of engine.Filter core is as most critical structure in filter, and filtering accuracy is to systematic influence
It is huge.Filter core needs to meet filtering accuracy height, the small demand of resistance.Currently, part filter core is to meet system to lower resistance demand,
Filter element filtering precision is reduced, being able to satisfy system resistance requirement, still filtering accuracy is not high, and impurity easily enters engine nozzle, makes
At nozzle wear；Other part filter cores are to meet nozzle accuracy requirement, and filter core precision is improved, and resistance increases, and cause filter core
Easily blocking, causes high-pressure oil pump of engine load excessive, and abrasion is accelerated.
Summary of the invention
The object of the present invention is to provide a kind of diesel fuel filter filter core, the technical issues of to solve in the prior art, its energy
Enough when guaranteeing that filter core resistance meets the requirement of fuel system, the filter efficiency of filter core is improved.
The present invention provides a kind of diesel fuel filter filter core, including filter core main body, the filter core main body has axially penetrated through stream
Body channel, the fluid channel are up-narrow and down-wide cone type structure, and the oil outlet of the filter core main body is formed in the stream
The minimum diameter end in body channel.
Diesel fuel filter filter core as described above, wherein preferably, the filter core main body includes successively layer from top to bottom
Upper end cover, level-one filter core, second level filter core and the lower cover of folded setting, the upper end cover, level-one filter core, second level filter core and lower cover
It is coaxially disposed, the level-one filter core and the second level filter core are tubular structure, and the porosity of the level-one filter core is less than institute
The porosity of second level filter core is stated, the minimum diameter end of the fluid channel is formed in the outer end face of the upper end cover, the fluid
The maximum gauge end in channel is formed in the outer end face of the lower cover.
Diesel fuel filter filter core as described above, wherein preferably, the layer of the level-one filter core and the second level filter core
Support plate is provided at folded position.
Diesel fuel filter filter core as described above, wherein preferably, the upper end cover and the level-one cartridge seal are solid
Even.
Diesel fuel filter filter core as described above, wherein preferably, the lower cover and the second level cartridge seal are solid
Even.
Diesel fuel filter filter core as described above, wherein preferably, the center of the upper end cover offers round logical
Hole, the circular through hole are connected to the minimum diameter end of the fluid channel, and the internal diameter of the circular through hole and the fluid
The diameter of section at the minimum diameter end in channel is equal.
Diesel fuel filter filter core as described above, wherein preferably, the inner wall of the circular through hole faces away from described
The side of fluid channel extends to form annular boss, and the inner wall of the annular boss is equipped with internal screw thread.
Compared with prior art, the present invention is by being up-narrow and down-wide cone type knot by the fluid channel of filter core main body
Structure changes the size of the upper lower section of fluid channel, can control fuel oil and flows through the flow velocity of fluid channel, so that it is logical to change fluid
The negative pressure that road generates.Wherein, fluid channel is longer, and upper and lower area of section is than smaller, then faster by the flow velocity of oil outlet, more leans on
The negative pressure of nearly filter core main body upper end is bigger, and the ability of adsorbing contaminant is bigger, meets the requirement of fuel system in guarantee filter core resistance
In the case of, improve the filter efficiency of filter core main body.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Description of symbols: 1- filter core main body, 2- fluid channel, 3- upper end cover, 4- level-one filter core, 5- second level filter core, 6-
Lower cover, 7- support plate, 8- circular through hole, 9- annular boss.
Specific embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, for explaining only the invention, and cannot be construed to
Limitation of the present invention.
As shown in Figure 1, the embodiment provides a kind of diesel fuel filter filter core, including filter core main body 1, the filter
The filter core material of core main body 1 is preferably folded filter paper material, and the filter core main body 1 has axially penetrated through fluid channel 2, the fluid
Channel 2 is up-narrow and down-wide cone type structure, and the oil outlet of the filter core main body 1 is formed in the minimum of the fluid channel 2
Diameter end.
By being up-narrow and down-wide cone type structure by the fluid channel 2 of filter core main body 1, change the upper of fluid channel 2
The size of lower section can control fuel oil and flow through the flow velocity of fluid channel 2, to change the negative pressure of the generation of fluid channel 2.Its
In, fluid channel 2 is longer, and upper and lower area of section is than smaller, then faster by the flow velocity of oil outlet, in filter core main body 1
The negative pressure at end is bigger, and the ability of adsorbing contaminant is bigger, when guaranteeing that filter core resistance meets the requirement of fuel system, improves
The filter efficiency of filter core main body 1.
The filter core main body 1 includes upper end cover 3, level-one filter core 4,5 and of second level filter core being cascading from top to bottom
Lower cover 6, the upper end cover 3, level-one filter core 4, second level filter core 5 and lower cover 6 are coaxially disposed, the upper end cover 3 with it is described
The sealing of level-one filter core 4 is connected, and the lower cover 6 is connected with the second level filter core 5 sealing, the level-one filter core 4 and the second level
Support plate 7 is provided at the stratification position of filter core 5, the support plate 7 is round plastic plate.
The level-one filter core 4 and the second level filter core 5 are tubular structure, and wherein level-one filter core 4 is refined filtration, second level filter core
5 be coarse filtration, i.e., the average filter opening aperture of level-one filter core 4 be less than second level filter core 5 average filter opening aperture, the level-one filter core 4
Porosity is less than the porosity of the second level filter core 5, and the minimum diameter end of the fluid channel 2 is formed in the upper end cover 3
Outer end face, the maximum gauge end of the fluid channel 2 are formed in the outer end face of the lower cover 6.
The center of the upper end cover 3 offers circular through hole 8, the axis of the circular through hole 8 and the fluid channel 2
Axis is overlapped, and the circular through hole 8 is connected to the minimum diameter end of the fluid channel 2, and the internal diameter of the circular through hole 8 with
The diameter of section at the minimum diameter end of the fluid channel 2 is equal, to guarantee that flowing is smooth.For the ease of the assembly of this filter core,
The side that the inner wall of the circular through hole 8 faces away from the fluid channel 2 extends to form annular boss 9, the annular boss 9
Inner wall be equipped with internal screw thread, be fixedly connected by being threadedly engaged, it is convenient and efficient.
The present invention is changed the structure of former cylindrical structure, single filter paper by redesigning 1 structure of filter core main body
Into cone type structure being designed as, while single filter paper is changed to multi-layer filter paper composite construction, when the section that fuel oil flows through gradually becomes
Small, flow velocity will be accelerated, and will lead to and generate at level-one filter core 4 than the bigger negative pressure of second level filter core 5, will flow through 1 outer surface of filter core main body
Impurity be more adsorbed on level-one filter core 4, guarantee substantially reduced by the impurity of second level filter core 5.Impurity in fuel is adsorbed
On different efficiency filter core layers, it can accomplish that filter core efficiency maximizes, drag minimization.Therefore, can accomplish to meet filtering effect
Rate combines filter core resistance demand.
The present invention does not influence the construction and arrangement of filter tank assembly, is only adjusted to filter core main body 1, therefore has very strong
Practical application value.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (6)
1. a kind of diesel fuel filter filter core, including filter core main body (1), it is characterised in that: the filter core main body (1) has axially penetrated through
Fluid channel (2), the fluid channel (2) are up-narrow and down-wide cone type structure, the fuel-displaced degree of lip-rounding of the filter core main body (1)
The minimum diameter end of fluid channel described in Cheng Yu (2)；The filter core main body (1) includes the upper end being cascading from top to bottom
Cover (3), level-one filter core (4), second level filter core (5) and lower cover (6), the upper end cover (3), level-one filter core (4), second level filter core
(5) it being coaxially disposed with lower cover (6), the level-one filter core (4) and the second level filter core (5) they are tubular structure, and described one
The porosity of grade filter core (4) is less than the porosity of the second level filter core (5), and the minimum diameter end of the fluid channel (2) is formed
The maximum gauge end of outer end face in the upper end cover (3), the fluid channel (2) is formed in the outer end of the lower cover (6)
Face.
2. diesel fuel filter filter core according to claim 1, it is characterised in that: the level-one filter core (4) and the second level
Support plate (7) are provided at the stratification position of filter core (5).
3. diesel fuel filter filter core according to claim 1, it is characterised in that: the upper end cover (3) and the first-level filtering
Core (4) sealing is connected.
4. diesel fuel filter filter core according to claim 1, it is characterised in that: the lower cover (6) and the second level are filtered
Core (5) sealing is connected.
5. diesel fuel filter filter core according to claim 1, it is characterised in that: the center of the upper end cover (3) offers
Circular through hole (8), the circular through hole (8) is connected to the minimum diameter end of the fluid channel (2), and the circular through hole
(8) diameter of section at the minimum diameter end of internal diameter and the fluid channel (2) is equal.
6. diesel fuel filter filter core according to claim 5, it is characterised in that: the inner wall direction of the circular through hole (8)
It is extended to form annular boss (9) away from the side of the fluid channel (2), the inner wall of the annular boss (9) is equipped with interior spiral shell
Line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053495.4A CN107803060B (en) | 2017-10-30 | 2017-10-30 | A kind of diesel fuel filter filter core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711053495.4A CN107803060B (en) | 2017-10-30 | 2017-10-30 | A kind of diesel fuel filter filter core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107803060A CN107803060A (en) | 2018-03-16 |
| CN107803060B true CN107803060B (en) | 2019-05-07 |
Family
ID=61583263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711053495.4A Active CN107803060B (en) | 2017-10-30 | 2017-10-30 | A kind of diesel fuel filter filter core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107803060B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB731337A (en) * | 1952-09-24 | 1955-06-08 | Bosch Gmbh Robert | Improved fuel filters for internal combustion engines |
| CN2287675Y (en) * | 1996-12-15 | 1998-08-12 | 周彬 | Constant temperature heater for diesel carburettor |
| RU2264583C2 (en) * | 2003-08-25 | 2005-11-20 | Ульяновская государственная сельскохозяйственная академия | Device for cleaning and preparing liquid fuel for combustion |
| CN205478032U (en) * | 2016-01-22 | 2016-08-17 | 瑞安市力硕汽车部件有限公司 | Diesel filter |
-
2017
- 2017-10-30 CN CN201711053495.4A patent/CN107803060B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB731337A (en) * | 1952-09-24 | 1955-06-08 | Bosch Gmbh Robert | Improved fuel filters for internal combustion engines |
| CN2287675Y (en) * | 1996-12-15 | 1998-08-12 | 周彬 | Constant temperature heater for diesel carburettor |
| RU2264583C2 (en) * | 2003-08-25 | 2005-11-20 | Ульяновская государственная сельскохозяйственная академия | Device for cleaning and preparing liquid fuel for combustion |
| CN205478032U (en) * | 2016-01-22 | 2016-08-17 | 瑞安市力硕汽车部件有限公司 | Diesel filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107803060A (en) | 2018-03-16 |
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