CN206329426U - Fuel tank cap with canister function - Google Patents
Fuel tank cap with canister function Download PDFInfo
- Publication number
- CN206329426U CN206329426U CN201621360241.8U CN201621360241U CN206329426U CN 206329426 U CN206329426 U CN 206329426U CN 201621360241 U CN201621360241 U CN 201621360241U CN 206329426 U CN206329426 U CN 206329426U
- Authority
- CN
- China
- Prior art keywords
- support
- tank body
- fuel tank
- tubing string
- stomata
- 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.)
- Withdrawn - After Issue
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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 utility model discloses a kind of fuel tank cap with canister function, include the support (6) of upper lid (1), tank body (7), carbon dust (4) and accommodating carbon dust (4), support (6) is socketed in tank body (7), and lower end and the tank body (7) of support (6) are tightly connected；Support (6) has center tubing string (8) and the continuous passage (9) for lengthening oil vapour circulation path, continuous passage (9) initiating terminal is connected with center tubing string (8), and terminal is connected with the fuel tank external world；Tank body (7) bottom is provided with the first stomata (20) connected with fuel tank inner chamber and the second stomata (21) connected with the fuel tank external world, first stomata (20) is connected with center tubing string (8), and the second stomata (21) is connected with the terminal of continuous passage (9).After above structure, structure is compacter, is more applicable for small-sized plant equipment；The circulation path of fuel-steam is considerably increased, makes the more efficient of absorption.
Description
Technical field
The utility model is related to a kind of fuel tank cap with canister function.
Background technology
Generally, canister can be installed between petrol tank and engine, because activated carbon has adsorption function, work as automobile
When running or be flame-out, the fuel-steam in fuel tank enters the top of activated carbon canister by pipeline, and fresh air is then from activity
Canister bottom enters in activated carbon canister.After engine misses, gasoline vapor with fresh air is in in-tank mixing and is stored in activity
In canister, after engine start, the electromagnetic valve of the EVAP purifier between activated carbon canister and inlet manifold
Open, the gasoline vapor in activated carbon canister is inhaled into inlet manifold and participates in burning.In the prior art, canister and fuel tank are general all
It is separately provided, furthermore is attached by oil pipe, is additionally provided with addition on fuel tank for making air pressure in casing keep balance
Breather valve.But, it has the drawback that：Canister and fuel tank are split type settings, and in other words canister is arranged on outside fuel tank, carbon
Tank is connected by oil pipe with fuel tank, therefore, and overall structure is scattered, and space-consuming is larger, is not particularly suited for small volume some
The small-displacement gasoline engines such as plant equipment, such as graden machine.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of structure for integrating canister and fuel tank cap
The compact fuel tank cap with canister function.
In order to solve the above technical problems, the fuel tank cap with canister function that the utility model is provided, one kind carries canister
The fuel tank cap of function, including upper lid, tank body and carbon dust, packing carbon powder is in tank body, and tank body connects with top cap；It also includes being used for
The support of accommodating carbon dust, support is socketed in tank body, and lower end and the tank body of support are tightly connected；Described support tool
There are center tubing string and the continuous passage for lengthening oil vapour circulation path, the initiating terminal of continuous passage is connected with center tubing string,
Terminal is connected with the fuel tank external world；Described tank base is provided with the first stomata connected with fuel tank inner chamber and connected with the fuel tank external world
The second logical stomata, the first stomata is connected with center tubing string, and the second stomata is connected with the terminal of continuous passage.
Described support takes the shape of the letter U, and its inside is additionally provided with the radial direction that lower end is connected as a single entity with support bottom
Dividing plate and at least one toroidal membrane, toroidal membrane and center tubing string it is concentric and be located at center tubing string and support annular sidewall it
Between, one end of radial direction dividing plate is connected with the side wall of center tubing string, the annular sidewall connection of the other end and support；Described annular
One end of dividing plate is connected with the side of radial direction dividing plate, has passage, toroidal membrane between the opposite side of the other end and radial direction dividing plate
At least two circle continuous passages that head and the tail are connected will be divided into inside support with radial direction dividing plate.
The initiating terminal of the continuous passage is connected with center tubing string to be referred to, central tube column top has breach, the position of breach
Setting in the side of the radial direction dividing plate at continuous passage initiating terminal.
The terminal of the continuous passage is connected with the fuel tank external world to be referred to, the support bottom of continuous passage end is provided with logical
Gas passage, the venting channels are located at the second stomata of tank body and connected with the second stomata.
Described venting channels are the fan-shaped air grid that multiple arcs long lumbar hole is constituted, at the air grid covered with
Fan-shaped filter.
Diaphragm plate is provided with the middle part of the center tubing string inner chamber of the support, diaphragm plate center is provided with more than through hole, diaphragm plate
Partial center tubing string is embedded with the center tubing string inner chamber of part below filtering bodies, diaphragm plate and the first stomata phase of tank base
It is logical.
The lower end of the support is tightly connected with tank body to be referred to, the lower end of support is provided with boss, corresponding tank body
Bottom is provided with the cavity of accommodating boss, is tightly connected between the outer circle wall of boss and the madial wall of cavity by sealing ring；It is convex
The hollow structure that the endoporus of Tai Neiweiyu centers tubing string is communicated, the first stomata of tank base is connected with cavity.
The intracavity sidewall of described tank body is the diameter with diameter greater than tank base at the conical surface, and tank body opening, branch
Hold that frame is socketed in tank body and the bottom surface of support is close to the bottom of chamber of tank inner chamber, upper end and the top cap of tank body connect.
Non-woven fabrics compressing tablet and gland are additionally provided between described support and upper lid successively, non-woven fabrics compressing tablet is covered in carbon dust
On, gland is located on non-woven fabrics compressing tablet and the edge of gland is fixedly connected with the edge of opening of support.
After above structure, the utility model compared with prior art, has the following advantages that：
1) due to the support of accommodating carbon dust is arranged in tank body, such canister and fuel tank cap are integrated in one, and make knot
Structure is compacter, greatly reduces volume, is more applicable for the equipment such as small-sized graden machine；In addition, the center that support has
Tubing string and continuous passage, considerably increase the fuel-steam circulation path of carbon dust, make the more efficient of absorption, inhale to a greater extent
Attached fuel-steam, further increases ability to work；
2) toroidal membrane in support is at least one, and when quantity is one, continuous passage is end to end two
Circle, when quantity is two, continuous passage is end to end three circles, and by that analogy, the path of the more continuous passages of quantity is more
Long, strainability is better, and these structures can determine according to actually used ability to work situation；
3) filter that the filtering bodies and continuous passage tail end that tubing string upper end in center is provided with are provided with, is for making combustion
Oil cannot directly enter in carbon dust chamber, cause carbon dust to fail；
4) support lower end and tank body are tightly connected, and make can only be at the tubing string of center from the oil vapour that tank base enters
Pass through, and avoid going in the gap between support and tank body, it is ensured that the actual of fuel-steam flows to path；
5) madial wall of tank body is designed to the conical surface extended out, support is more conveniently put into tank body；
6) carbon dust is more stably contained in support successively covered with non-woven fabrics compressing tablet and gland on carbon dust, keep away
Exempt from carbon dust to run out of and influence quality oily in fuel tank.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of fuel tank cap of the utility model with canister function.
Fig. 2 is the configuration schematic diagram of fuel tank cap of the utility model with canister function.
Fig. 3 is confined explosion's structural representation of fuel tank cap of the utility model with canister function.
Fig. 4 is the structural representation of support in fuel tank cap of the utility model with canister function.
Fig. 5 is the structural representation of tank body in fuel tank cap of the utility model with canister function.
Wherein, 1, upper lid；2nd, gland；3rd, non-woven fabrics compressing tablet；4th, carbon dust；5th, filtering bodies；6th, support；7th, tank body；8th, in
Heart tubing string；9th, continuous passage；10th, sealing ring；11st, boss；12nd, cavity；13rd, diaphragm plate；14th, filter；15th, radial direction dividing plate；
16th, toroidal membrane；17th, breach；18th, passage；19th, air grid；20th, the first stomata；21st, the second stomata.
Embodiment
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
From the structural representation of fuel tank cap of the utility model shown in Fig. 1~Fig. 5 with canister function, it includes
Upper lid 1, tank body 7 and carbon dust 4, carbon dust 4 are filled in tank body 7, and tank body 7 is connected with upper lid 1.It also includes being used to house carbon dust 4
Support 6, support 6 is socketed in tank body 7, and lower end and the tank body 7 of support 6 are tightly connected.Described support 6 has
Center tubing string 8 and the continuous passage 9 for lengthening oil vapour circulation path, initiating terminal and the center tubing string 8 of continuous passage 9 connect
Logical, terminal is connected with the fuel tank external world.The described bottom of tank body 7 is provided with the first stomata 20 and and fuel tank connected with fuel tank inner chamber
Second stomata 21 of external world's connection, the first stomata 20 is connected with center tubing string 8, and the terminal of the second stomata 21 and continuous passage 9 connects
It is logical.
Described support 6 takes the shape of the letter U, and its inside is additionally provided with the footpath that lower end is connected as a single entity with the bottom of support 6
To dividing plate 15 and at least one toroidal membrane 16, toroidal membrane 16 and center tubing string 8 are concentric and positioned at center tubing string 8 and support
Between 6 annular sidewalls, one end of radial direction dividing plate 15 is connected with the side wall of center tubing string 8, the annular sidewall of the other end and support 6
Connection.One end of described toroidal membrane 16 is connected with the side of radial direction dividing plate 15, the opposite side of the other end and radial direction dividing plate 15
Between there is passage 18, toroidal membrane 16 and radial direction dividing plate 15 will be divided at least two circles that head and the tail connects continuously inside support 6
Passage 9.
The initiating terminal of the continuous passage 9 is connected with center tubing string 8 to be referred to, the top of center tubing string 8 has breach 17, breach
17 position is located at the side of the radial direction dividing plate 15 at the initiating terminal of continuous passage 9.
The terminal of the continuous passage 9 is connected with the fuel tank external world to be referred to, the bottom of support 6 of the end of continuous passage 9 is set
There are venting channels, the venting channels are located at the second stomata 21 of tank body 7 and connected with the second stomata 21.
Described venting channels are to be covered at the fan-shaped air grid 19 that multiple arcs long lumbar hole is constituted, the air grid 19
It is stamped the filter 14 of sector.
Diaphragm plate 13 is provided with the middle part of the inner chamber of center tubing string 8 of the support 6, the center of diaphragm plate 13 is provided with through hole, tabula
The center tubing string 8 of the above section of plate 13 is embedded with filtering bodies 5, the inner chamber of center tubing string 8 and the bottom of tank body 7 of diaphragm plate part below 13
First stomata 20 in portion is communicated.
The lower end of the support 6 is tightly connected with tank body 7 to be referred to, the lower end of support 6 is provided with boss 11, corresponding tank
The bottom of body 7 is provided with the cavity 12 of accommodating boss 11, passes through sealing between the outer circle wall of boss 11 and the madial wall of cavity 12
Circle 10 is tightly connected.The hollow structure that the endoporus of the Nei Weiyu centers tubing string 8 of boss 11 is communicated, the first stomata 20 of the bottom of tank body 7
Connected with cavity 12.
The intracavity sidewall of described tank body 7 is the diameter with diameter greater than the bottom of tank body 7 at the conical surface, and the opening of tank body 7,
Support 6 is socketed in tank body 7 and the bottom surface of support 6 is close to the bottom of chamber of the inner chamber of tank body 7, the upper end of tank body 7 and upper lid 1
Connection.
Non-woven fabrics compressing tablet 3 and gland 2 are additionally provided between described support 6 and upper lid 1 successively, non-woven fabrics compressing tablet 3 is covered
In on carbon dust 4, gland 2 is located on non-woven fabrics compressing tablet 3 and the edge of gland 2 is fixedly connected with the edge of opening of support 6.
The course of work of the present utility model is as follows：Oil vapour in fuel tank enters tank from the first stomata 20 of the bottom of tank body 7
In the cavity 12 of the bottom of body 7, and filtering bodies 5 are entered by the through hole in center tubing string 8, then successively by way of breach 17, continuous
After the initiating terminal of passage 9, inner ring continuous passage, passage 18, outer ring continuous passage, the tail end of continuous passage 9 is reached, and from tail end
Filter 14 filter, finally fuel-steam is discharged outside to from the second stomata 21；Conversely, being sucked from the second stomata 21
Air, the fuel-steam of absorption is finally brought into fuel tank burnt successively reverses through each passage.
The above, is only the preferable feasible implementation example of the utility model, it is impossible to therefore limit to of the present utility model
Interest field, it is for those skilled in the art, all to be made with the technical solution of the utility model and technical concept
Other it is various it is corresponding change should all belong within the utility model scope of the claims.Such as continuous passage can
It is variously-shaped to be designed to, as long as joining end to end and one end connects the other end with center tubing string and is in communication with the outside.
Claims (9)
1. a kind of fuel tank cap with canister function, including upper lid (1), tank body (7) and carbon dust (4), carbon dust (4) are filled in tank body
(7) in, tank body (7) is connected with upper lid (1)；It is characterized in that：It also includes the support (6) for being used to house carbon dust (4), supports
Frame (6) is socketed in tank body (7), and lower end and the tank body (7) of support (6) are tightly connected；Described support (6) has center
Tubing string (8) and the continuous passage (9) for lengthening oil vapour circulation path, initiating terminal and the center tubing string (8) of continuous passage (9)
Connection, terminal is connected with the fuel tank external world；Described tank body (7) bottom be provided with the first stomata (20) for being connected with fuel tank inner chamber and
With the second stomata (21) for connect of the fuel tank external world, the first stomata (20) is connected with center tubing string (8), the second stomata (21) and continuously
The terminal connection of passage (9).
2. the fuel tank cap according to claim 1 with canister function, it is characterised in that：Described support (6) is in U
Shape, its inside is additionally provided with a radial direction dividing plate (15) and at least one ring that lower end is connected as a single entity with support (6) bottom
Shape dividing plate (16), toroidal membrane (16) and center tubing string (8) are concentric and positioned at center tubing string (8) and support (6) annular sidewall
Between, one end of radial direction dividing plate (15) is connected with the side wall of center tubing string (8), and the annular sidewall of the other end and support (6) connects
Connect；One end of described toroidal membrane (16) is connected with the side of radial direction dividing plate (15), and the other end is another with radial direction dividing plate (15)
There is passage (18), toroidal membrane (16) will be divided into what head and the tail were connected with radial direction dividing plate (15) inside support (6) between side
At least two circle continuous passages (9).
3. the fuel tank cap according to claim 2 with canister function, it is characterised in that：Of the continuous passage (9)
Top is connected with center tubing string (8) to be referred to, has breach (17) at the top of center tubing string (8), and the position of breach (17) is located at continuously
The side of radial direction dividing plate (15) at passage (9) initiating terminal.
4. the fuel tank cap according to claim 2 with canister function, it is characterised in that：The end of the continuous passage (9)
End is connected with the fuel tank external world to be referred to, support (6) bottom of continuous passage (9) end is provided with venting channels, the venting channels
Connect positioned at the second stomata (21) place of tank body (7) and with the second stomata (21).
5. the fuel tank cap according to claim 4 with canister function, it is characterised in that：Described venting channels are multiple
The fan-shaped air grid (19) of arc long lumbar hole composition, air grid (19) place is covered with fan-shaped filter (14).
6. the fuel tank cap according to claim 2 with canister function, it is characterised in that：The center of the support (6)
Diaphragm plate (13) is provided with the middle part of tubing string (8) inner chamber, diaphragm plate (13) center is provided with through hole, the center of diaphragm plate (13) above section
Tubing string (8) is embedded with filtering bodies (5), center tubing string (8) inner chamber of diaphragm plate (13) following part and the first of tank body (7) bottom
Stomata (20) is communicated.
7. the fuel tank cap according to claim 1 with canister function, it is characterised in that：The lower end of the support (6)
It is tightly connected and refers to tank body (7), the lower end of support (6) is provided with boss (11), and the bottom of corresponding tank body (7) is provided with accommodating
The cavity (12) of boss (11), is sealed between the outer circle wall of boss (11) and the madial wall of cavity (12) by sealing ring (10)
Connection；The hollow structure that the endoporus of boss (11) Nei Weiyu centers tubing string (8) is communicated, first stomata (20) of tank body (7) bottom
Connected with cavity (12).
8. the fuel tank cap according to claim 1 with canister function, it is characterised in that：The inner chamber of described tank body (7)
Side wall is the diameter with diameter greater than tank body (7) bottom at the conical surface, and tank body (7) opening, and support (6) is socketed in tank body
(7) bottom surface of interior and support (6) is close to the bottom of chamber of tank body (7) inner chamber, and the upper end of tank body (7) is connected with upper lid (1).
9. the fuel tank cap according to claim 1 with canister function, it is characterised in that：Described support (6) and upper
Non-woven fabrics compressing tablet (3) and gland (2) are additionally provided with successively between lid (1), and non-woven fabrics compressing tablet (3) is covered on carbon dust (4), gland
(2) it is located on non-woven fabrics compressing tablet (3) and the edge of gland (2) is fixedly connected with the edge of opening of support (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621360241.8U CN206329426U (en) | 2016-12-12 | 2016-12-12 | Fuel tank cap with canister function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621360241.8U CN206329426U (en) | 2016-12-12 | 2016-12-12 | Fuel tank cap with canister function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329426U true CN206329426U (en) | 2017-07-14 |
Family
ID=59290424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621360241.8U Withdrawn - After Issue CN206329426U (en) | 2016-12-12 | 2016-12-12 | Fuel tank cap with canister function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206329426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704059A (en) * | 2016-12-12 | 2017-05-24 | 宁波利凯特环保科技有限公司 | Fuel tank cap with carbon tank function |
-
2016
- 2016-12-12 CN CN201621360241.8U patent/CN206329426U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704059A (en) * | 2016-12-12 | 2017-05-24 | 宁波利凯特环保科技有限公司 | Fuel tank cap with carbon tank function |
| CN106704059B (en) * | 2016-12-12 | 2019-06-25 | 宁波利凯特环保科技有限公司 | Fuel tank cap with canister function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170714 Effective date of abandoning: 20190625 |