CN102777297A - Fuel filter with filter screen mechanism - Google Patents
Fuel filter with filter screen mechanism Download PDFInfo
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- CN102777297A CN102777297A CN2012102858249A CN201210285824A CN102777297A CN 102777297 A CN102777297 A CN 102777297A CN 2012102858249 A CN2012102858249 A CN 2012102858249A CN 201210285824 A CN201210285824 A CN 201210285824A CN 102777297 A CN102777297 A CN 102777297A
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- filter
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- filter screen
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Abstract
The invention relates to a fuel filter, and in particular relates to a fuel filter with a filter screen mechanism, and mainly aims at solving the technical problem that impurities carried in the inner part of the fuel filter enter a fuel injection system easily. The technical scheme is as follows: the fuel filter with the filter screen mechanism comprises a shell sub-assembly, a threaded cover board sub-assembly and a filter core sub-assembly, wherein the filter core sub-assembly is fixed in the shell sub-assembly by a filter core sealing ring and a spring; and the fuel filter is characterized in that a filter device is additionally arranged on an opening end closure. The edge of the opening end closure is step-shaped, wherein the upper step blocks filter paper and a central pipe, while the lower step is elastically and inversely blocked with the upper end of the filter device so as to form clamped connection. The filter device is of a cylindrical hollow structure, and a filter screen wraps outside the filter device; and the triangular sealing ring is arranged on the circumference of the filter device matched with the opening end closure, and the triangular sealing ring and the opening end closure are in interference fit. According to the invention, the secondary filter is formed by additionally arranging the filter screen in the filter, so the high cleanness requirement of products is realized without increasing the production cost.
Description
Technical field
The present invention relates to a kind of fuel filter; Be particularly related to a kind of high cleanliness fuel filter with filter screen mechanism; Through forming secondary filter, under the situation that does not increase cost of production, realize the more high cleanliness requirement of product in the inner form that increases filter screen of filter cleaner.
Background technique
Traditional filter cleaner is because the narrow limitation of structure and production; The narrow limitation that in the process of producing, reaches manufacturing process unavoidably can be brought metal fragment and dust impurity; Therefore inevitably these impurity directly get into pipeline road and get into common rail fuel injection system then; Cause the premature wear of injection system; The external method that improves the filter cleaner turbidity test at present mainly is to adopt dust-free workshop to produce filter cleaner, and this will certainly increase the production cost, and existing domestic filter cleaner turbidity test all are difficult to the fuel filter turbidity test requirement that reaches increasingly high.With reference to Fig. 1; The prior fuel oil filter cleaner comprises shell sub-assembly 6 and thread plate sub-assembly 7 and filter core sub-assembly 5, and said filter core sub-assembly 5 is fixed in the shell sub-assembly 6 through filter core seal ring 8 and spring 9, and said filter core sub-assembly 5 is mainly by open end cap 1; The end cap 2 of remaining silent; Filter paper 3 forms through the filter paper adhesive curing with center tube 4, and this filter cleaner can filter external impurity, if but filter cleaner inside has impurity can't handle.
Summary of the invention
The purpose of this invention is to provide a kind of high cleanliness fuel filter, mainly solve fuel filter inside and carry the technical problem that impurity gets into fuel injection system easily with filter screen mechanism.This filter cleaner can effectively filter out the metal fragment that brings in the production process, avoids these impurity to get into injection system, is protected to guarantee fuel injection system.
The technological scheme that the present invention adopts is: a kind of fuel filter with filter screen mechanism; Adopt the secondary filter structure; On original product basis, change the structural design of filter cleaner open end cap, on open end cap, increase by one filtrating equipment, this filtrating equipment not only is stamped the sealing of reliability with opening end; And have the anti-lock device of back-off, make sealing and the locking that filtrating equipment has reliability after being pressed into.Simultaneously, this filtrating equipment is the tubular hollow structure, and the outside coats filter screen, has stronger structural strength and strainability; Because the filtrating equipment design at the axis position of filter cleaner and at the oil outlet position of open end cap, is increased the flow resistance that filter screen brings so effectively reduce.In order to reach the effect of sealing and locking; Avoid impurity directly to get into injection system without filter screen, the circumference that cooperates with open end cap at filtrating equipment is provided with the delta seal circle, after this filtrating equipment is pressed into open end cap; Delta seal circle and open end cap form interference fit, play seal action; Simultaneously the filtrating equipment upper end has the elasticity back-off, be pressed into open end cap after, under elastic reaction, the elasticity back-off blocks open end cap, has prevented coming off of filter screen; Simultaneously aspect production process, be somebody's turn to do filtrating equipment, and avoided the impurity etc. in the production process to be brought into injection system in last procedure assembling of producing.
The invention has the beneficial effects as follows: the oil outlet at filter cleaner increases filtration together, guarantees that the large granular impurity that produces in process of production is filtered, and can not get into injection system, is effectively protected to guarantee fuel injection system.Filtrating equipment tubular hollow design is covered filter screen outward, not only rises to reach strainability and have stronger structural strength; The axis design of filtrating equipment can effectively reduce and increase the flow resistance that filter screen brings; Novel open end cap and filter screen design; Reliability between the two is sealed and matched and the locking mechanism of reliability; Effectively filter out the metal impurities that bring in the production process, make filter cleaner under profile size constancy and cost increase situation seldom, effectively promoted the turbidity test of product.
Description of drawings
Fig. 1 is the structural representation of original fuel filter.
Fig. 2 is a structural representation of the present invention.
Among the figure: 1-open end cap, the 2-end cap of remaining silent, 3-filter paper, 4-center tube, 5-filter core sub-assembly, 6-shell sub-assembly, 7-thread plate sub-assembly, 8-filter core seal ring, 9-spring, 10-filtrating equipment, 11-delta seal circle, 12-elasticity back-off.
Embodiment
With reference to Fig. 2, the fuel filter of band filter screen of the present invention mechanism comprises shell sub-assembly 6 and thread plate sub-assembly 7 and filter core sub-assembly 5; Said filter core sub-assembly 5 through filter core seal ring 8 with spring 9, be fixed in the shell sub-assembly 6; Said filter core sub-assembly 5 is mainly by open end cap 1, and the end cap 2 of remaining silent, filter paper 3 pass through the filter paper adhesive curing with center tube 4 and form; Said open end cap 1 edge is step-like; Upper step is blocked filter paper 3 and center tube 4, and lower step forms snap-in the connection with the elasticity back-off 12 of filtrating equipment 10 upper ends, has avoided coming off of filter screen.At the circle distribution delta seal circle 11 that filtrating equipment 10 cooperates with open end cap 1, after this filtrating equipment 10 was pressed into open end cap 1, delta seal circle 11 formed interference fit with open end cap 1, plays seal action.
With reference to Fig. 2; Be the oil circuit direction shown in the arrow, after fuel oil gets into from filler opening, through the filtration of fuel filter filter core sub-assembly 5; Through center tube 4, the secondary filter of the filter screen of process filtrating equipment 10 enters into oil circuit from the screw mouth of thread plate sub-assembly 7 then.
Claims (4)
1. the fuel filter of band filter screen mechanism comprises shell sub-assembly and thread plate sub-assembly and filter core sub-assembly, and said filter core sub-assembly is fixed in the shell sub-assembly through filter core seal ring and spring, it is characterized in that: on open end cap, set up filtrating equipment.
2. the fuel filter of band filter screen according to claim 1 mechanism, it is characterized in that: said open end cap edge is step-like, and upper step is blocked filter paper and center tube, and lower step forms snap-in the connection with the elasticity back-off of filtrating equipment upper end.
3. the fuel filter of band filter screen according to claim 1 mechanism, it is characterized in that: said filtrating equipment is the tubular hollow structure, the outside coats filter screen, is arranged in filter cleaner axis and oil circuit outlet position.
4. the fuel filter of band filter screen according to claim 1 mechanism is characterized in that: at the circle distribution delta seal circle that filter screen cooperates with open end cap, delta seal circle and open end cap form interference fit, form sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102858249A CN102777297A (en) | 2012-08-13 | 2012-08-13 | Fuel filter with filter screen mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102858249A CN102777297A (en) | 2012-08-13 | 2012-08-13 | Fuel filter with filter screen mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102777297A true CN102777297A (en) | 2012-11-14 |
Family
ID=47122356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102858249A Pending CN102777297A (en) | 2012-08-13 | 2012-08-13 | Fuel filter with filter screen mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102777297A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2714137Y (en) * | 2004-06-10 | 2005-08-03 | 张波 | Air dryer |
| CN2921302Y (en) * | 2006-07-03 | 2007-07-11 | 刘万彬 | Paper end cover rotary mounting engine oil filter |
| CN101108285A (en) * | 2007-08-07 | 2008-01-23 | 上海泽周汽车配件有限公司 | Nano polymer filter |
| CN202125385U (en) * | 2011-06-15 | 2012-01-25 | 克拉克过滤器（中国）有限公司 | Fuel oil filter |
| CN202250522U (en) * | 2011-10-17 | 2012-05-30 | 浙江东富汽车部件有限公司 | Filter core cup type fuel filter |
| CN202867059U (en) * | 2012-08-13 | 2013-04-10 | 上海弗列加滤清器有限公司 | Fuel filter with filter screen mechanism |
-
2012
- 2012-08-13 CN CN2012102858249A patent/CN102777297A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2714137Y (en) * | 2004-06-10 | 2005-08-03 | 张波 | Air dryer |
| CN2921302Y (en) * | 2006-07-03 | 2007-07-11 | 刘万彬 | Paper end cover rotary mounting engine oil filter |
| CN101108285A (en) * | 2007-08-07 | 2008-01-23 | 上海泽周汽车配件有限公司 | Nano polymer filter |
| CN202125385U (en) * | 2011-06-15 | 2012-01-25 | 克拉克过滤器（中国）有限公司 | Fuel oil filter |
| CN202250522U (en) * | 2011-10-17 | 2012-05-30 | 浙江东富汽车部件有限公司 | Filter core cup type fuel filter |
| CN202867059U (en) * | 2012-08-13 | 2013-04-10 | 上海弗列加滤清器有限公司 | Fuel filter with filter screen mechanism |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |