CN204236231U - With the canister vent pipe mounting structure of filter protection device - Google Patents
With the canister vent pipe mounting structure of filter protection device Download PDFInfo
- Publication number
- CN204236231U CN204236231U CN201420658471.7U CN201420658471U CN204236231U CN 204236231 U CN204236231 U CN 204236231U CN 201420658471 U CN201420658471 U CN 201420658471U CN 204236231 U CN204236231 U CN 204236231U
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- CN
- China
- Prior art keywords
- protection device
- filter protection
- housing
- pipe
- canister
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- 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.)
- Expired - Fee Related
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- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
The utility model discloses a kind of canister vent pipe mounting structure with filter protection device, be provided with filter protection device at breather pipe oral area, filter protection device is arranged on fuel filler pipe and close filler cap position.This filter protection device is made up of housing and the foam-rubber cushion being positioned at housing, and be provided with air extractor vent in housing upper surface, be provided with breather pipe connector in housing lower surface, breather pipe connector is connected with canister vent pipe.This structure, by setting up filter protection device and setting position thereof, well avoids muddy water and dust enters canister vent pipe, also just protects reliability and the durability of canister work.The utility model structure simply, does not change existing vehicle structure and layout, easily realizes.
Description
Technical field
The utility model relates to automobile correlation technique, specifically relates to a kind of canister vent pipe mounting structure with filter protection device, belongs to automobile technical field.
Background technology
Fuel oil in automotive oil tank temperature reach certain in can produce oil vapour, make on the one hand to produce higher pressure in fuel tank, there is potential safety hazard, overflow also can foul air for oil vapour simultaneously.Given this, current automobile has additional usually the canister be connected with fuel tank, canister, built with absorption carbon, for adsorbed oil steam, is avoided directly overflowing entering air, is also played the effect of fuel tank pressure release simultaneously.In order to recycle the oil vapour of canister absorption, also avoid canister to adsorb saturated rear inefficacy, breather pipe canister being provided with the oil return pipe be connected with driving engine simultaneously and communicating with air simultaneously.When engine operation, the valve open on oil return pipe, the oil vapour that canister is adsorbed by oil return pipe by driving engine generation negative pressure sucks engine chamber together with air (being entered by breather pipe).Time driving engine does not have in harness, valve and oil return pipe are closed, and now canister can continue adsorbed oil steam, if reached capacity, unnecessary oil vapour also can enter air.Because canister is usually located at below automobile tail spare tyre, therefore breather pipe position is lower, and prior art breather pipe directly communicates with air, so just have the following disadvantages: 1, when engine operation sucks air, muddy water in environment and dust also easily can enter breather pipe, and be attached in canister, affect functional reliability and the service life of canister.2, time driving engine does not have in harness, if canister adsorbed oil saturated with vapor, oil vapour also can enter air, foul air.
Summary of the invention
For prior art above shortcomings, the purpose of this utility model is to provide a kind of to be had dust-proof, waterproofing protection and avoids oil vapour directly to enter the canister vent pipe mounting structure of the band filter protection device of air.
To achieve these goals, the technical solution adopted in the utility model is such:
With the canister vent pipe mounting structure of filter protection device, filter protection device is provided with at breather pipe oral area, this filter protection device is made up of housing and the foam-rubber cushion being positioned at housing, air extractor vent is provided with in housing upper surface, be provided with breather pipe connector in housing lower surface, breather pipe connector is connected with canister vent pipe.When suction air, the foam-rubber cushion in this structure can effectively filter dust and muddy water, and filter protection device plays a role in filtering to the air entering canister.Under flameout state, if canister absorption is saturated, also can be adsorbed by foam-rubber cushion by breather pipe oil vapour out, therefore greatly can reduce the oil vapour amount entering air.
Further, described filter protection device is arranged on fuel filler pipe and close filler cap position.Because this position is often higher, and be wrapped in bodywork component, so muddy water is difficult to arrive, and dust also easily rests on peripheral parts after arriving, and is difficult to enter in housing, even if enter, also can be adsorbed by foam-rubber cushion.
Described housing is fastened by upper shell and lower house two parts and forms, and air extractor vent is located on upper shell, and breather pipe connector is located on lower house.This structure is both convenient installs, and is also convenient for changing foam-rubber cushion.
The housing cross-sectional of described filter protection device is in fan ring structure, and the arcwall face of fan ring structure indent is fitted on fuel filler pipe.
Described filter protection device is embraced part by the circle of fitting with fuel filler pipe and is fixedly mounted on fuel filler pipe, and circular part of embracing is embraced part by left and right two semicircular arc and surrounded and formed, and wherein a semicircular arc is embraced part and to be arranged on upper shell and one-body molded with upper shell.
Compared to existing technology, the utility model has following beneficial effect:
1, this structure is by setting up filter protection device and setting position thereof, well avoids muddy water and dust enters canister vent pipe, also just protects reliability and the durability of canister work.
2, because filter protection device to be arranged on fuel filler pipe (near filler cap place), so ensure that it is in vehicle very high position and be wrapped in bodywork component, ensure that own reliability work; And also ensure that its discharge vaporization gas can not escape in railway carriage, avoid polluting air and initiation potential safety hazard in car.
3, the utility model structure simply, does not change existing vehicle structure and layout, easily realizes.
Accompanying drawing explanation
Fig. 1-the utility model structural representation.
The other angle schematic diagram of Fig. 2-Fig. 1.
Fig. 3-the utility model filter protection structure drawing of device.
Fig. 4-Fig. 3 A-A cutaway view.
Fig. 5-Fig. 3 birds-eye view.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
See Fig. 1 and Fig. 2, upper as can be seen from figure, the canister vent pipe mounting structure of the utility model band filter protection device, is provided with filter protection device 2 at breather pipe 1 oral area.This filter protection device 2 is made up of housing 3 and the foam-rubber cushion 4 being positioned at housing, and be provided with air extractor vent 5 in housing upper surface, be provided with breather pipe connector 6 in housing lower surface, breather pipe connector 6 is connected with canister vent pipe 1, sees Fig. 3-Fig. 5 simultaneously.When suction air, the foam-rubber cushion in this structure can effectively filter dust and muddy water, and filter protection device plays a role in filtering to the air entering canister.Under flameout state, if canister absorption is saturated, also can be adsorbed by foam-rubber cushion by breather pipe oil vapour out, therefore greatly can reduce the oil vapour amount entering air.
Further, described filter protection device 2 is arranged on fuel filler pipe 7 and close filler cap 8 position, sees Fig. 1 and Fig. 2.Because this position is often higher, and be wrapped in bodywork component, so muddy water is difficult to arrive, and dust also easily rests on peripheral parts after arriving, and is difficult to enter in housing, even if enter, also can be adsorbed by foam-rubber cushion.
See Fig. 4, described housing 3 fastens for Plastic Parts and by upper shell 9 and lower house 10 two parts and forms, and upper shell 9 covers on outside lower house 10, and air extractor vent 5 has two places, left and right to be all located at upper shell 9 upper surface, and breather pipe connector 6 is located on lower house 10.This structure is the expediently installation of lower house and fractionation both, is also convenient for changing foam-rubber cushion.Around the lower end outer wall of breather pipe connector, there is raised structures, so more can guarantee and the reliability that canister vent pipe is connected, difficult drop-off.
See Fig. 5, the housing cross-sectional of described filter protection device is in fan ring structure, and inner sea pad is also corresponding shape, and the arcwall face of fan ring structure indent is fitted on fuel filler pipe, and this spline structure seems compact, is more convenient for installing.
Be easily mounted on fuel filler pipe to make filter protection device, the utility model is provided with the circle of fitting with fuel filler pipe 7 and embraces part on filter protection device 2, circular part of embracing is embraced part 11 by left and right two semicircular arc and is surrounded and form to be embraced by fuel filler pipe, wherein a semicircular arc is embraced part 11 and to be arranged on upper shell 9 and one-body molded with upper shell 9, and second half circular arc is embraced part and surrounded with it fixing when mounted.
Compared to existing technology, the utility model does not change this body structure of canister and the annexation with fuel tank driving engine, just have additional filter protection device at canister vent spout part and be arranged on specific position, in order to be installed to this ad-hoc location, breather pipe length needs to increase.Even if filter protection device is not set up in this position, breather pipe oral area is also not easy to enter muddy water and dust, therefore under both combineds action, guarantees that muddy water and dust can not enter canister vent pipe.
This structure installment illustrates:
1, first filter protection device three part (upper-lower casing and foam-rubber cushion, upper shell comprises embraces part, and lower house comprises breather pipe connector) is assembled intact;
2, again filter protection device is assembled to (near filler cap place) on fuel filler pipe;
3, the fuel filler pipe general assembly the 2nd step completed on vehicle body, and makes breather pipe connector and canister vent pipe be connected firmly.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (5)
1. be with the canister vent pipe mounting structure of filter protection device, it is characterized in that: be provided with filter protection device at breather pipe oral area, this filter protection device is made up of housing and the foam-rubber cushion being positioned at housing, air extractor vent is provided with in housing upper surface, be provided with breather pipe connector in housing lower surface, breather pipe connector is connected with canister vent pipe.
2. the canister vent pipe mounting structure of band filter protection device according to claim 1, is characterized in that: described filter protection device is arranged on fuel filler pipe and close filler cap position.
3. the canister vent pipe mounting structure of band filter protection device according to claim 1 and 2, is characterized in that: described housing is fastened by upper shell and lower house two parts and forms, and air extractor vent is located on upper shell, and breather pipe connector is located on lower house.
4. the canister vent pipe mounting structure of band filter protection device according to claim 3, is characterized in that: the housing cross-sectional of described filter protection device is in fan ring structure, and the arcwall face of fan ring structure indent is fitted on fuel filler pipe.
5. the canister vent pipe mounting structure of band filter protection device according to claim 4, it is characterized in that: described filter protection device is embraced part by the circle of fitting with fuel filler pipe and is fixedly mounted on fuel filler pipe, circular part of embracing is embraced part by left and right two semicircular arc and is surrounded and formed, and wherein a semicircular arc is embraced part and to be arranged on upper shell and one-body molded with upper shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420658471.7U CN204236231U (en) | 2014-11-06 | 2014-11-06 | With the canister vent pipe mounting structure of filter protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420658471.7U CN204236231U (en) | 2014-11-06 | 2014-11-06 | With the canister vent pipe mounting structure of filter protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204236231U true CN204236231U (en) | 2015-04-01 |
Family
ID=52765774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420658471.7U Expired - Fee Related CN204236231U (en) | 2014-11-06 | 2014-11-06 | With the canister vent pipe mounting structure of filter protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204236231U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385906A (en) * | 2014-11-06 | 2015-03-04 | 力帆实业(集团)股份有限公司 | Mounting structure for filtering and protecting vent pipe of carbon tank |
-
2014
- 2014-11-06 CN CN201420658471.7U patent/CN204236231U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385906A (en) * | 2014-11-06 | 2015-03-04 | 力帆实业(集团)股份有限公司 | Mounting structure for filtering and protecting vent pipe of carbon tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20191106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |