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CN102937058B - Novel carbon tank structure - Google Patents

Novel carbon tank structure Download PDF

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Publication number
CN102937058B
CN102937058B CN201210512175.1A CN201210512175A CN102937058B CN 102937058 B CN102937058 B CN 102937058B CN 201210512175 A CN201210512175 A CN 201210512175A CN 102937058 B CN102937058 B CN 102937058B
Authority
CN
China
Prior art keywords
carbon tank
ventilating hole
protective hat
main body
canister
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.)
Expired - Fee Related
Application number
CN201210512175.1A
Other languages
Chinese (zh)
Other versions
CN102937058A (en
Inventor
唐基荣
吕兆平
赵艳芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAIC GM Wuling Automobile Co Ltd
Original Assignee
SAIC GM Wuling Automobile Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SAIC GM Wuling Automobile Co Ltd filed Critical SAIC GM Wuling Automobile Co Ltd
Priority to CN201210512175.1A priority Critical patent/CN102937058B/en
Publication of CN102937058A publication Critical patent/CN102937058A/en
Application granted granted Critical
Publication of CN102937058B publication Critical patent/CN102937058B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)

Abstract

The invention provides a novel carbon tank structure. The novel carbon tank structure comprises a carbon tank main body, wherein the main body is provided with a vent communicated with the outside air. The novel carbon tank structure is characterized by also comprising a protecting cap which covers on the vent; the protecting cap is internally provided with a filtering core along the inner wall; the bottom part of the protecting cap has a convex filtering-core supporting structure; the filtering core is clamped in space between the protecting cap and the filtering-core supporting structure by the filtering-core supporting structure; a fastener which extends into the vent is convexly arranged at the central part of the protecting cap; and the protecting cap is fastened with the vent by the fastener in a clamping manner. The novel carbon tank structure provided by the invention has the advantages that the condition that the protecting cap falls due to vibration in the running process of the whole vehicle can be avoided, the water and sand particles are prevented from directly falling into the carbon tank to block the vent of the carbon tank, and the dust with large particle diameter in the air is prevented from entering the carbon tank along with the air flow to block the vent of the carbon tank.

Description

A kind of carbon tank structure
Technical field
The present invention relates to automotive field, is the carbon tank structure that particularly relates to a kind of automotive fuel oil system.
Background technique
On automobile, store in the fuel tank of gasoline and can produce gasoline vapor discharge because of the volatilization of gasoline.On existing automobile (gasoline car), be generally all provided with canister, as shown in Figure 1, in canister, be filled with granule activated carbon.Canister communicates with the inside of fuel tank by pipeline, collects and store the gasoline vapor producing in fuel tank, the active carbon adsorption fuel-steam in it.In the time of engine running, be stored in gasoline vapor in canister and can be drawn in the gas handling system of motor and participate in burning with the high velocity air of canister ventilating hole and realize reactivating of canister
(desorption process).
On canister, be equipped with ventilating hole, canister in use, working environment very severe, ventilating hole easily enters dust and water in the course of the work, for a long time use, can cause canister ventilating hole stop up, canister desorption resistance increase, finally cause failure of fuel system.
Summary of the invention
The present invention completes in order to solve deficiency of the prior art, the object of this invention is to provide a kind of carbon tank structure, and a kind of canister with protective hat is provided, the problem that can avoid canister ventilating hole that dust causes in canister along with desorption air-flow enters to stop up.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of carbon tank structure, comprises canister main body, and described main body is provided with a ventilating hole communicating with ambient air, it is characterized in that, also comprises a protective hat, and described protective hat covers on the top of described ventilating hole; In described protective hat, along its inwall, filter core is set, is also provided with the filter element supporting structure of protrusion in the lid bottom of described protective hat, described filter element supporting structure is stuck in described filter core in the space between described protective hat and described filter element supporting structure; The central part of described protective hat is also outstanding is provided with buckle, and described buckle stretches into described ventilating hole, and described protective hat is fastening by described buckle and described ventilating hole clamping.
Further, technological scheme of the present invention can also be:
Described buckle be three-pawl type distribute card column, described card column stretches into described ventilating hole, prop up the perforated wall of described ventilating hole to the seam of described card column bottom, the inwall close contact of the outer wall of described card column and described ventilating hole, and there is slightly outwardly Ka Tai on the top of described card column, the outer wall of described Ka Tai and the internal surface clamping of described main body that is connected described ventilating hole, thereby fixing described protective hat and described canister.
Described filter element supporting structure is four equally distributed supporting posts.
In described main body, be provided with the surperficial ring-type splash guard perpendicular to described main body around described ventilating hole; The outer wall of described splash guard is all provided with multiple fins; Filter core is stuck in described splash guard, and fin on the inwall of described protective hat and described splash guard connects and fixes.
On described splash guard, there is a gap.
The invention has the beneficial effects as follows:
(1) avoid water and the grains of sand directly to fall into canister inside, stop up canister ventilating hole, avoid declining because the intrusion of water causes canister ability to work;
(2) avoid the dust that in air, particle is larger to enter canister inside with air-flow, stop up canister ventilating hole;
(3) avoiding canister protective hat in car load running process comes off because of vibration.
Brief description of the drawings
Fig. 1 is the schematic diagram of the carbon tank structure of prior art.
Fig. 2 is the schematic diagram of carbon tank structure of the present invention.
Fig. 3 is the structural representation of the canister body of carbon tank structure of the present invention.
Fig. 4 is the structural representation of the protective hat of carbon tank structure of the present invention.
Fig. 5 is the another structural representation of the protective hat of carbon tank structure of the present invention.
Description of reference numerals
1, canister main body 2, ventilating hole 3, protective hat 4, filter core 5, filter element supporting structure 6, buckle 7, seam 8, card platform 9, splash guard 10, fin 11, gap 12, air-flow direction
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Of the present invention a kind of carbon tank structure as shown in Figure 2-5, comprises canister main body 1, and canister main body 1 is provided with a ventilating hole communicating with ambient air 2, also comprises a protective hat 3, and protective hat covers on the top of ventilating hole; The central part of protective hat is also outstanding is provided with buckle 6, and buckle stretches into ventilating hole, and protective hat is fastening by buckle and ventilating hole clamping, and while having ensured that vehicle travels under various operating modes, protective hat can not come off.In protective hat, along its inwall, filter core 4 is set, is also provided with the filter element supporting structure 5 of protrusion in the lid bottom of protective hat, filter element supporting structure is stuck in filter core in the space between protective hat and filter element supporting structure.
In this example, filter element supporting structure is four equally distributed supporting posts.
In this example, buckle be three-pawl type distribute card column, card column stretches into ventilating hole, prop up the perforated wall of ventilating hole to the seam 7 of card column bottom, the inwall close contact of the outer wall of card column and ventilating hole, and there is slightly outwardly card platform 8 on the top of card column, the outer wall of Ka Tai and the internal surface clamping of main body that is connected ventilating hole, thereby fixed protection cap and canister main body.
In this example, in canister main body, be provided with the ring-type splash guard 9 perpendicular to the upper surface of canister main body around ventilating hole; The outer wall of splash guard is all provided with multiple fins 10; Filter core is stuck in splash guard, and fin on inwall and the splash guard of protective hat connects and fixes.
Pass through said structure, after ventilating hole on protective hat of the present invention and canister body is fixed, the seam of buckle bottom coordinates and has ensured that buckle forms firm being connected with ventilating hole with the canister ventilating hole degree of depth with the distance at the top of card column, has avoided protective hat in car load running process and has come off because of vibration.Filter element supporting structure has been guaranteed to keep function in the long-term using process of filter core, is easy to realize large-scale production simultaneously.Filter core is arranged on canister splash guard inner side the upper surface butt with canister body, because protective hat covers the screens effect of the seam of buckle bottom, both position and the shape of filter core had been ensured, ensure that again atmosphere can flow in the gap of protective hat bottom and the formation of canister body, air-flow direction 12 as shown, can intercept like this grains of sand and water and enter canister main body by protective hat, air that simultaneously again can filter bag dust, guarantee to suck the turbidity test of the air of canister, ensured the venting capability of canister in long-term using process itself.Above-mentioned design greatly reduces the possibility that canister desorption resistance increases, and also solve canister ventilating hole and invade the ventilating hole blockage problem causing because of the grains of sand, water and dust, and the failure of fuel system problem that therefore causes of solution.This structure can also ensure that the water of the upper surface of canister main body can not soak filter core.
In this example, on splash guard, there is a gap 11, it is as flowing water mouth, only need to keep the downward-sloping very little angle of opening position, just can guarantee that filter core is not soaked in water, be conducive to unexpected water of invading in manger board simultaneously and automatically flow out, avoid declining because the intrusion of water causes canister ability to work, guarantee the operating life of filter core, extended the working life of the canister main body with protective hat.
By using the carbon tank structure after above-mentioned improvement, can effectively avoid stopping up because of canister the fuel tank abnormal sound, the distortion fault feedback (CPIP) that cause.Originally the extreme road conditions 5000km canister that travels occurs that situation about stopping up also has great improvement, adopt this technology after failure free time can rise to more than 60,000 kilometers.Of the present invention simple in structure, cost is low: maintenance scheme is simple and easy to do, only needs to change protective hat, can make canister maintenance cost reduce approximately 95%.
Above-mentionedly only the concrete enforcement in the present invention is illustrated, but can not serves as unique foundation of protection scope of the present invention, every equivalence of making according to the design spirit in the present invention changes or modifies, and all should think and fall into protection scope of the present invention.

Claims (5)

1. a carbon tank structure, comprises canister main body, and described main body is provided with a ventilating hole communicating with ambient air, it is characterized in that, also comprises a protective hat, and described protective hat covers on the top of described ventilating hole; In described protective hat, along its inwall, filter core is set, is also provided with the filter element supporting structure of protrusion in the lid bottom of described protective hat, described filter element supporting structure is stuck in described filter core in the space between described protective hat and described filter element supporting structure; The central part of described protective hat is also outstanding is provided with buckle, and described buckle stretches into described ventilating hole, and described protective hat is fastening by described buckle and described ventilating hole clamping.
2. a kind of carbon tank structure according to claim 1, it is characterized in that: described buckle be three-pawl type distribute card column, described card column stretches into described ventilating hole, prop up the perforated wall of described ventilating hole to the seam of described card column bottom, the inwall close contact of the outer wall of described card column and described ventilating hole, and there is slightly outwardly Ka Tai on the top of described card column, the outer wall of described Ka Tai and the internal surface clamping of described main body that is connected described ventilating hole, thereby fixing described protective hat and described canister.
3. a kind of carbon tank structure according to claim 2, is characterized in that: described filter element supporting structure is four equally distributed supporting posts.
4. a kind of carbon tank structure according to claim 3, is characterized in that: in described main body, be provided with the surperficial ring-type splash guard perpendicular to described main body around described ventilating hole; The outer wall of described splash guard is all provided with multiple fins; Filter core is stuck in described splash guard, and fin on the inwall of described protective hat and described splash guard connects and fixes.
5. a kind of carbon tank structure according to claim 4, is characterized in that: on described splash guard, have a gap.
CN201210512175.1A 2012-12-03 2012-12-03 Novel carbon tank structure Expired - Fee Related CN102937058B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210512175.1A CN102937058B (en) 2012-12-03 2012-12-03 Novel carbon tank structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210512175.1A CN102937058B (en) 2012-12-03 2012-12-03 Novel carbon tank structure

Publications (2)

Publication Number Publication Date
CN102937058A CN102937058A (en) 2013-02-20
CN102937058B true CN102937058B (en) 2014-07-30

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103894020A (en) * 2013-08-02 2014-07-02 马勒技术投资(中国)有限公司 Dust filter of air vent of carbon tank

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7261093B2 (en) * 2004-07-21 2007-08-28 Stant Manufacturing Inc. Evaporative emissions control fuel cap
CN201757013U (en) * 2010-03-09 2011-03-09 浙江飞亚电子有限公司 Carbon tank
CN202007722U (en) * 2011-03-03 2011-10-12 重庆润通动力有限公司 Gas vent valve arranged on fuel oil tank of universal gasoline engine
CN202215399U (en) * 2011-07-29 2012-05-09 马勒技术投资(中国)有限公司 Carbon tank provided with protective hat
CN203009104U (en) * 2012-12-03 2013-06-19 上汽通用五菱汽车股份有限公司 Novel carbon canister structure

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Granted publication date: 20140730

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CF01 Termination of patent right due to non-payment of annual fee