CN206144682U - Fuel vapor recovery unit , vehicle fuel oil system , vehicle - Google Patents
Fuel vapor recovery unit , vehicle fuel oil system , vehicle Download PDFInfo
- Publication number
- CN206144682U CN206144682U CN201621105358.1U CN201621105358U CN206144682U CN 206144682 U CN206144682 U CN 206144682U CN 201621105358 U CN201621105358 U CN 201621105358U CN 206144682 U CN206144682 U CN 206144682U
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- China
- Prior art keywords
- fuel
- inner tube
- steam
- retracting device
- arm
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Abstract
The utility model provides a fuel vapor recovery unit, vehicle fuel oil system, vehicle. This fuel vapor recovery unit includes the outer tube, the inner tube, the active carbon, adsorb branch pipe and atmosphere branch pipe, outer pipe box is established on the inner tube, it holds the cavity to form between outer tube and the inner tube, the active carbon is filled in holding the cavity, it had the gas through -hole to open on the inner tube, a first serving that absorption branch connection that is used for being linked together with the fuel tank is at the first end or the inner tube of outer tube, it serves at the second end of outer tube or the second of inner tube to communicate atmospheric atmosphere branch connection, and the the central axis of inner tube has a plurality of positions of buckling. Use the technical scheme of the utility model can solve among the prior art problem that absorption efficiency is low of the oil of activated carbon canister in to fuel vapor, can realize that fuel vapor and active carbon keep the contact of long period and improve absorption efficiency, adsorb the oil among the fuel vapor clean as far as possible to discharge out clean air, in order to realize the environmental protection.
Description
Technical field
The utility model is related to Car design manufacturing technology field, in particular it relates to a kind of fuel-steam retracting device, car
Fuel system, vehicle.
Background technology
In the fuel system of automobile, because gasoline is a kind of volatile liquid, the fuel oil of fuel system at normal temperatures
Oil vapour is often filled up in case, in order to solve the emission problem of the fuel-steam in fuel tank, thus combustion is provided with automobile
Oily evaporative emission control system.The effect of evaporative emission control system is to introduce fuel-steam to burn and prevent from evaporateing into
In air, this process key is after the oil in fuel-steam is separated with air again by clean air discharge.
In the prior art, again will be clean after carrying out adsorbing totally to the oil in oil vapour using activated carbon in charcoal canister
Air discharge.Fill activated carbon in charcoal canister of the prior art, the direct fuel-steam after activated carbon of fuel-steam
It is adsorbed, then air is discharged.But, the oily adsorption efficiency during charcoal canister is to fuel-steam in prior art is not
Height, for the oily adsorbance in improving charcoal canister to oil vapour, needs to do the volume of charcoal canister greatly, and by activity
The amount of charcoal increases, and can so cause manufacturing cost to increase, and it is excessive to also result in the aeration resistance of charcoal canister.
Utility model content
The purpose of this utility model is to provide a kind of fuel-steam retracting device, vehicle fuel system, vehicle, it is intended to solved
The low problem of oily adsorption efficiency during certainly charcoal canister is to fuel-steam in prior art.
To solve above-mentioned technical problem, the technical solution of the utility model is：A kind of fuel-steam retracting device is provided, is wrapped
Outer tube, inner tube, activated carbon, absorption arm and big gas branch pipe are included, outer tube is set in inner tube, formed between outer tube and inner tube and accommodated
Cavity, activated carbon is filled in accommodating cavity, and vent hole was provided with inner tube, and the absorption arm for being connected with fuel tank connects
It is connected in the first end of the first end of outer tube or inner tube, the open to atmosphere big gas branch pipe of company is connected to second end or interior of outer tube
On second end of pipe, and the central axis of inner tube has multiple crooked places.
Alternatively, adsorb and control oil vapour is provided with arm can only flow to the first unidirectional of outer tube or inner tube from fuel tank
Valve.
Alternatively, the first end of inner tube is additionally provided with desorption arm, and desorption arm is used to be connected with the inlet manifold of internal combustion engine
It is logical, and the control valve for being provided with control desorption arm connection or disconnecting is desorbed on arm.
Alternatively, control oil vapour is provided with inner tube can only flow to the multiple second unidirectional of big gas branch pipe from absorption arm
Valve, multiple second check valves are uniform and compartment of terrain is distributed.
Alternatively, inner tube is shaped as circular shape in the corresponding crooked place of correspondence its center axis, inner tube it is multiple
Serpentine shaped is formed between the crooked place of circular shape.
Alternatively, inner tube angle for being formed at the corresponding crooked place of correspondence its center axis is ω, ω be more than or
Equal to 90 °.
Alternatively, fuel-steam retracting device also includes housing, and outer tube and inner tube are installed in housing, absorption arm,
Desorption arm and big gas branch pipe both pass through housing.
According to another aspect of the present utility model, there is provided a kind of vehicle fuel system, including fuel tank and be used for back
The oily fuel-steam retracting device in the fuel-steam in fuel tank is received, fuel-steam retracting device is aforesaid fuel-steam
Retracting device.
According to another aspect of the present utility model, there is provided a kind of vehicle, the vehicle includes aforesaid vehicle fuel system.
In the utility model, by arranging multiple crooked places so that when fuel-steam can keep longer with activated carbon
Between contact, it is so as to the oily adsorption recovery efficiency in improving to fuel-steam, the oil absorption in fuel-steam is clean, finally
Give off clean harmless air.
Description of the drawings
Fig. 1 is the structural representation of the first embodiment in adsorption process of fuel-steam retracting device of the present utility model；
Fig. 2 is the structural representation of the first embodiment in desorption process of fuel-steam retracting device of the present utility model；
Fig. 3 is the cross-sectional view of the inner tube of the first embodiment of fuel-steam retracting device of the present utility model；
Fig. 4 is the part bending position of the outer tube of the second embodiment of fuel-steam retracting device of the present utility model and inner tube
The structural representation put；
Fig. 5 is mplifying structure schematic diagram at A in Fig. 4.
In the accompanying drawings：
| Outer tube | 10 | Inner tube | 20 |
| Cross vent hole | 21 | Absorption arm | 22 |
| Big gas branch pipe | 23 | Desorption arm | 24 |
| Activated carbon | 30 | First check valve | 41 |
| Control valve | 42 | Second check valve | 43 |
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it is connected on another element.When an element is referred to as " being connected to " another element, it can be with
It is directly to another element or is indirectly connected on another element.
Also, it should be noted that the orientation term such as left and right, upper and lower in the present embodiment, be only each other relative concept or
Normal operating condition with product is reference, and be should not be regarded as restrictive.
As shown in Figure 1 to Figure 3, the fuel-steam retracting device of first embodiment of the present utility model includes outer tube 10, interior
Pipe 20, activated carbon 30, absorption arm 22 and big gas branch pipe 23, outer tube 10 is set in inner tube 20, between outer tube 10 and inner tube 20
Accommodating cavity is formed, activated carbon 30 is filled in accommodating cavity, vent hole 21 is provided with inner tube 20, for being connected with fuel tank
Logical absorption arm 22 is connected in the first end of the first end of outer tube 10 or inner tube 20 and (adsorbs arm 22 and be connected to outer tube
In 10 first end or when absorption arm 22 is connected in the first end of inner tube 10, when absorption arm 22 is connected to inner tube 10
When in first end, it is tightly connected between two ends of outer tube 10 and the outer wall of inner tube 20), the open to atmosphere big gas branch pipe 23 of company connects
It is connected on the second end of the second end of outer tube 10 or inner tube 10 that (preferably, big gas branch pipe 23 is connected to the second end of inner tube 10
On), and the central axis of inner tube 20 has multiple crooked places (now, outer tube 10 and the bending simultaneously of inner tube 20, and outer tube 10
It is filled with activated carbon 30 all the time and inner tube 20 between).
By fuel-steam retracting device of the present utility model, when the fuel oil in fuel tank of vehicle produce fuel-steam it
Afterwards, fuel-steam is entered in inner tube 20 from absorption arm 22, then the tube wall phase at fuel-steam and the crooked place of inner tube 20
Meet and passed through vent hole 21 to enter in activated carbon 30, the oil in fuel-steam is carried out adsorption recovery by activated carbon 30, then will
Clean air is discharged in air by big gas branch pipe 23.Using the fuel-steam retracting device, by arranging multiple bending positions
Put so that fuel-steam can keep the contact of long period with activated carbon 30, so as to the oily suction in improving to fuel-steam
Attached organic efficiency, the oil absorption in fuel-steam is clean, finally give off clean harmless air.
Hereinafter illustrate to be illustrated as a example by adsorbing arm 22 and directly be connected with the first end of inner tube 20.
In the present embodiment, adsorb and control fuel-steam is provided with arm 22 the of inner tube 20 can only be flowed to from fuel tank
One check valve 41, so that it is guaranteed that the air of outside cannot pour in down a chimney in fuel tank.
Specifically, the first end of inner tube 20 is additionally provided with desorption arm 24, is desorbed arm 24 for the air inlet discrimination with internal combustion engine
Pipe is connected, and is desorbed on arm 24 and is provided with that control desorption arm 24 is connected or the control valve 42 that disconnects (specifically, passes through
Controller is controlled to control valve 42, thus electrically connects between controller and control valve 42, when the fuel-steam is reclaimed
When pipeline application is on automobile, controller is preferably vehicle ECU).As shown in figure 1, when fuel-steam retracting device is in suction
During the attached course of work, the control valve 42 on now vehicle ECU controls desorption arm 24 keeps normal closed mode, oil vapour to enter
Cannot circulate from desorption arm 24 after inner tube 20.As shown in Fig. 2 when fuel-steam retracting device is in the desorption course of work,
Control valve 42 on now vehicle ECU controls desorption arm 24 is opened, because the inlet manifold of internal combustion engine works in air-breathing
State, swiftly flowing air-flow can be caused to be desorbed in arm 24 and form negative pressure of vacuum in inlet manifold, and now, outside air is big
Inner tube 20 is pressed in the presence of air pressure, and air again evaporates the fuel oil on activated carbon 30 and band after activated carbon 30
Walk, the air for carrying fuel-steam is entered in inlet manifold from desorption arm 24, enters eventually into work by combustion in engine.
As depicted in figs. 1 and 2, in order in desorption process outside air can as much as possible from activated carbon 30 pass through and
EVAP on activated carbon 30 is taken away, therefore, control oil vapour is provided with inner tube 20 can only be flowed to from absorption arm 22
Multiple second check valves 43 of big gas branch pipe 23, multiple second check valves 43 are uniform and compartment of terrain is distributed.So, outside air from
Big gas branch pipe 23 is entered after inner tube 20, and after running into second check valve 43 and stopping, air will be again by mistake
Vent hole 21 is entered in activated carbon 30, and so as to be pulled away preferably the EVAP on activated carbon 30 engine is entered.
Specifically, the inner tube 20 of the present embodiment is shaped as circular arc in the corresponding crooked place for corresponding to its center axis
Shape, between the crooked place of multiple circular shapes of inner tube 20 serpentine shaped is formed, specifically, the both sides of each circular shape
Inner tube 20 and outer tube 10 cause fuel-steam to turn at each crooked place and are 180 °.EVAP in fuel tank
During, after fuel-steam is by arm 22 is adsorbed in inner tube 20, fuel-steam is due to the effect of inertia, fuel-steam meeting
As much as possible along linear motion, when fuel-steam is linearly moved to the crooked place of circular shape, fuel-steam is passed through
Cross vent hole 21 and clash into activated carbon 30, the oil gas molecule of fuel-steam catches absorption by activated carbon 30, finally clean sky
Gas is spilt in air by big gas branch pipe 23, thus plays the effect of environmental protection.Similarly, it is extraneous in the desorption course of work
After air is entered in inner tube 20 by big gas branch pipe 23, also can as much as possible move along a straight line in the presence of inertia, and work as
When the crooked place of air movement each circular shape or each second control valve 43, similarly air have passed through vent hole
21 and clash into activated carbon 30, thus air flow causes EVAP on activated carbon 30 to form fuel-steam with air together
Inlet manifold is entered by desorption arm 24 and engine combustion is entered.
During fuel-steam retracting device is operated, especially carry out in the desorption course of work, due to gas
The tube wall of collision inner tube 20, thus noise can be produced, such as buzz.In order to reduce noise pollution, noise transmission is reduced, thus
Fuel-steam retracting device also includes housing 50, and outer tube 10 and inner tube 20 are installed in housing 50 so that produced noise
In the internal reflection of housing 50 and the propagation energy of noise is consumed, so as to reduce noise effect.Absorption arm 22, desorption arm 24 with
Big gas branch pipe 23 both passes through housing 50, also, the absorption arm 22, desorption arm 24 of the present embodiment with big gas branch pipe 23 from shell
The same side of body 50 passes.
As shown in Figure 4 and Figure 5, it is the structural representation of the second embodiment of fuel-steam retracting device of the present utility model
Figure.Second embodiment compared with first embodiment, with following difference.The inner tube 20 of second embodiment is being corresponded to wherein
The angle formed at the corresponding crooked place of heart axis is ω, and ω is more than or equal to 90 °, preferably ω=90 °.So
The crooked place of inner tube 20 is set, can equally utilize the principle that gas moves along a straight line because of effect of inertia to make fuel-steam and work
Property charcoal 30 collide and be adsorbed, and can also realize that fuel-steam and activated carbon 30 keep the contact of long period and improve suction
Attached efficiency, it is as much as possible that the oil absorption in fuel-steam is clean, so as to give off clean air, to realize environmental protection.Second
In addition to said structure is different from first embodiment, remaining structure all same will not be described here embodiment.
In the prior art, the canister applied on fuel tank is easily blocked due to air outlet, causes aeration resistance to increase
Greatly, nozzle early jump rifle when aeration resistance even increases to oiling and can not normally refuel.Using combustion of the present utility model
After oil vapour retracting device, can periodically desorption process be carried out to activated carbon 30, so as to reduce aeration resistance, reach elimination ventilation
The purpose of resistance increase.In order to make after having dust to enter and precipitate inside the inner tube 20 for further preventing fuel-steam retracting device
Into blocking, thus can big gas branch pipe 23 port arrange filter, the less screen pack of such as mesh aperture or
Filter sponge, or filter asbestos gauge etc. so that the impurity such as dust is blocked on the inner tube 20 of fuel-steam retracting device
Outside.
According to another aspect of the present utility model, there is provided a kind of vehicle fuel system.The vehicle fuel system includes combustion
Fuel tank and with for reclaim in fuel tank fuel-steam in oily fuel-steam retracting device, and the fuel-steam reclaims
Device is the fuel-steam retracting device described in previous embodiment, using the fuel-steam retracting device to being produced in fuel tank
Raw oil vapour is recycled, and can not only reach the purpose for making full use of the energy, additionally it is possible to realize environmental protection protection.
According to another aspect of the present utility model, there is provided a kind of vehicle, the vehicle includes aforesaid vehicle fuel system.
Black arrow direction in Fig. 1 and Fig. 2 represents the direction that gas flows.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
Any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (9)
1. a kind of fuel-steam retracting device, it is characterised in that including outer tube (10), inner tube (20), activated carbon (30), absorption
Pipe (22) and big gas branch pipe (23), the outer tube (10) is set in said inner tube (20), the outer tube (10) and said inner tube
(20) accommodating cavity is formed between, the activated carbon (30) is filled in the accommodating cavity, and said inner tube was provided with (20)
Vent hole (21), the absorption arm (22) for being connected with the fuel tank be connected to the first end of the outer tube (10) or
In the first end of said inner tube (20), the open to atmosphere big gas branch pipe (23) of company is connected to the second end or the institute of the outer tube (10)
State on the second end of inner tube (20), and the central axis of said inner tube (20) has multiple crooked places.
2. fuel-steam retracting device as claimed in claim 1, it is characterised in that be provided with control on the absorption arm (22)
Liquefaction steam can only flow to first check valve (41) of the outer tube (10) or said inner tube (20) from fuel tank.
3. fuel-steam retracting device as claimed in claim 2, it is characterised in that the first end of said inner tube (20) is additionally provided with
Desorption arm (24), desorption arm (24) is connected for the inlet manifold with internal combustion engine, and desorption arm (24)
On be provided with control it is described desorption arm (24) connection or disconnect control valve (42).
4. fuel-steam retracting device as claimed in claim 3, it is characterised in that control oil is provided with said inner tube (20)
Steam can only flow to multiple second check valves (43) of the big gas branch pipe (23) from absorption arm (22), and multiple described the
Two check valves (43) are uniform and compartment of terrain is distributed.
5. the fuel-steam retracting device as any one of Claims 1-4, it is characterised in that said inner tube (20) exists
The corresponding crooked place of correspondence its center axis is shaped as circular shape, the crooked place of multiple circular shapes of inner tube (20)
Between form serpentine shaped.
6. the fuel-steam retracting device as any one of Claims 1-4, it is characterised in that said inner tube (20) exists
The angle formed at the corresponding crooked place of correspondence its center axis is ω, and ω is more than or equal to 90 °.
7. fuel-steam retracting device as claimed in claim 4, it is characterised in that the fuel-steam retracting device is also wrapped
Housing (50) is included, the outer tube (10) and said inner tube (20) are installed in the housing (50), absorption arm (22),
Desorption arm (24) and the big gas branch pipe (23) both pass through the housing (50).
8. a kind of vehicle fuel system, including fuel tank and with for reclaim in the fuel tank fuel-steam in oily combustion
Oil vapour retracting device, it is characterised in that the fuel-steam retracting device is the combustion any one of claim 1 to 7
Oil vapour retracting device.
9. a kind of vehicle, it is characterised in that the vehicle includes the vehicle fuel system described in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621105358.1U CN206144682U (en) | 2016-10-09 | 2016-10-09 | Fuel vapor recovery unit , vehicle fuel oil system , vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621105358.1U CN206144682U (en) | 2016-10-09 | 2016-10-09 | Fuel vapor recovery unit , vehicle fuel oil system , vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206144682U true CN206144682U (en) | 2017-05-03 |
Family
ID=58621353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621105358.1U Active CN206144682U (en) | 2016-10-09 | 2016-10-09 | Fuel vapor recovery unit , vehicle fuel oil system , vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206144682U (en) |
-
2016
- 2016-10-09 CN CN201621105358.1U patent/CN206144682U/en active Active
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