CN206539422U - Automobile and its canister desorption apparatus - Google Patents
Automobile and its canister desorption apparatus Download PDFInfo
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- CN206539422U CN206539422U CN201621475085.XU CN201621475085U CN206539422U CN 206539422 U CN206539422 U CN 206539422U CN 201621475085 U CN201621475085 U CN 201621475085U CN 206539422 U CN206539422 U CN 206539422U
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Abstract
The utility model is related to automotive fuel oil system technical field, more particularly to automobile and its canister desorption apparatus, canister desorption apparatus includes engine aspirating system, booster, air cleaner and canister, connected between air cleaner and booster by the first air entraining pipe, connected between booster and engine aspirating system by the second air entraining pipe, and air throttle is provided with the second air entraining pipe；Canister desorption apparatus also includes venturi valve, and venturi valve is provided with first interface, second interface and the 3rd interface, and first interface is connected with canister, and second interface is connected with the first air entraining pipe, and the 3rd interface is connected with engine aspirating system respectively；Provided with the first check valve for making medium flow to first interface from canister between first interface and canister, provided with the second check valve for making medium flow to the first air entraining pipe from second interface between second interface and the first air entraining pipe.The utility model can improve the desorption flow to fuel-steam in canister, so as to lift the fuel-steam desorption effect in canister.
Description
Technical field
The utility model is related to automotive fuel oil system technical field, more particularly to automobile and its canister desorption apparatus.
Background technology
Due to the volatility of gasoline, automobile is in refueling process, in the course of work or because environment temperature increases, in fuel tank
Fluid evaporate into air, pollute.Existing automobile is absorbed generally by activated carbon canister during automotive service
Fuel-steam, it also requires by negative pressure extracting outside air into canister, fuel-steam being flushed in engine and burnt
The regeneration of canister can be realized.In addition, in order to control the oil and gas leakage of canister to be polluted into environment, country has formulated mandatory
Discharge vaporization standard, defines gasoline car exhaust of oil limit value, and can the fuel-steam in canister rinse dry in such cases
It is net then particularly important.And as adding for national discharge vaporization regulation is tight, gasoline car is needed by the way that the volume of canister is increased into 2
Times or so, then the desorption traffic demand then further increase therewith to the fuel-steam in canister.Therefore, it is necessary to research and develop one
Plant the technology for the desorption flow that can improve the fuel-steam to being stored in canister.
Utility model content
The purpose of this utility model is to provide a kind of automobile and its canister desorption apparatus, it is intended to solve the vapour of prior art
The technical problem of the small fuel-steam desorption effect difference caused in canister of fuel-steam desorption flow in car canister.
To achieve the above object, the technical solution of the utility model is：A kind of canister desorption apparatus, including engine enter
Gas system, booster, air cleaner and canister, are connected between the air cleaner and the booster by the first air entraining pipe
It is logical, connected between the booster and the engine aspirating system by the second air entraining pipe, and set in second air entraining pipe
There is air throttle；The canister desorption apparatus also includes venturi valve, and the venturi valve is provided with first interface, second interface and the
Three interfaces, the first interface is connected with the canister, and the second interface is connected with first air entraining pipe, and the described 3rd connects
Mouth is connected with the engine aspirating system；Being provided between the first interface and the canister makes medium be flowed to from the canister
First check valve of the first interface, being provided between the second interface and first air entraining pipe makes medium from described second
Interface flows to the second check valve of first air entraining pipe.
Preferably, the venturi valve includes entrance reduced portion, cylindrical throat and outlet flaring portion, and described first connects
Mouth is located at the cylindrical throat, and the second interface is located at the entrance located at the outlet flaring portion, the 3rd interface
Reduced portion.
Preferably, the first interface is connected by downtake pipe with the canister, and the second interface passes through second
Blast pipe is connected with first air entraining pipe, and the 3rd interface is connected by the 3rd blast pipe and the engine aspirating system
It is logical.
Preferably, first check valve is on the downtake pipe or the first interface.
Preferably, second check valve is on the second exhaust pipe or the second interface.
Preferably, the downtake pipe is provided with the Valve EGR for being used for controlling the downtake pipe switch.
Preferably, the booster is turbocharger.
The beneficial effects of the utility model：Canister desorption apparatus of the present utility model, during work, when engine load is relatively low
When, throttle opening is relatively low and booster does not work, and now the negative pressure in engine aspirating system is larger, and the fuel oil in canister steams
Vapour through downtake pipe, the first check valve, the first interface of venturi valve, venturi valve the 3rd interface and the 3rd blast pipe
Engine aspirating system is entered, now the second check valve can prevent the air-flow after air cleaner from flowing through text through second interface
Valve in mound, it is to avoid canister desorption effect is affected；When the engine load is relatively large, throttle opening is larger and booster work
Make, now the air pressure of engine aspirating system is more than atmospheric pressure, a portion high pressure draught passes through the 3rd blast pipe, venturi
The 3rd interface, second exhaust pipe, the second check valve of valve flow to the first air entraining pipe, and venturi valve produces larger negative pressure, by carbon
Fuel-steam in tank is adsorbed, and engine combustion is flowed into by engine aspirating system, during this, the first check valve
Air-flow reverse flow can be prevented into canister.So, it is possible to use the larger negative pressure of venturi valve formation, produce stronger
Flushing air-flow, by the fuel-steam in canister be adsorbed onto in engine burn, can significantly increase the desorption gas of canister
Flow so that canister desorption is cleaner, advantageously reduces vehicle discharge vaporization, reduces environmental pollution.
Another technical scheme of the present utility model is：A kind of automobile, it includes above-mentioned canister desorption apparatus.
Automobile of the present utility model, the canister desorption apparatus above-mentioned due to having used, then can be desorbed by the canister
Device forms larger negative pressure and produces stronger flushing air-flow in the course of the work, and the fuel-steam in canister is adsorbed onto
Burnt in engine, can significantly increase the desorption gas flow of canister so that canister desorption is cleaner, advantageously reduces
Vehicle discharge vaporization, reduces environmental pollution.
Brief description of the drawings
The structural schematic block diagram for the canister desorption apparatus that Fig. 1 provides for the utility model embodiment.
Reference includes：
The air entraining pipe of 10-engine aspirating system, 20-booster 21-the second
30-air cleaner 31-the first, 40-canister of air entraining pipe
50-air throttle, 60-venturi valve, 61-first interface
The 70-the first check valve of interface of 62-second interface 63-the three
80-the second check valve 90-Valve EGR, 611-downtake pipe
The blast pipe of 621-second exhaust pipe 631-the three.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
In description of the present utility model, it is to be understood that term " length ", " width ", " on ", " under ", " preceding ",
The orientation or position relationship of the instruction such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " are based on attached
Orientation or position relationship shown in figure, are for only for ease of description the utility model and are described with simplified, rather than indicate or imply
Signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The limitation of utility model.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
As shown in figure 1, a kind of canister desorption apparatus that the utility model embodiment is provided, including engine aspirating system
10th, booster 20, air cleaner 30 and canister 40, draw between the air cleaner 30 and the booster 20 by first
Tracheae 31 is connected, and is connected between the booster 20 and the engine aspirating system 10 by the second air entraining pipe 21, and described
Air throttle 50 is provided with second air entraining pipe 21；The canister desorption apparatus also includes venturi valve 60, and the venturi valve 60 is set
There are first interface 61, the interface 63 of second interface 62 and the 3rd, the first interface 61 is connected with the canister 40, and described second connects
Mouth 62 is connected with first air entraining pipe 31, and the 3rd interface 63 is connected with the engine aspirating system 10；Described first
Provided with the first check valve 70 for making medium flow to the first interface 61 from the canister 40 between interface 61 and the canister 40,
Draw between the second interface 62 and first air entraining pipe 31 provided with making medium flow to described first from the second interface 62
Second check valve 80 of tracheae 31.Wherein, above-mentioned medium is fuel-steam.
Specifically, the venturi valve 60 includes entrance reduced portion, cylindrical throat and outlet flaring portion, and described first
Interface 61 is located at the cylindrical throat, and the second interface 62 is located at located at the outlet flaring portion, the 3rd interface 63
The entrance reduced portion.
Specifically, the canister desorption apparatus of the utility model embodiment, during work, when engine load is relatively low, solar term
50 apertures of door are relatively low and booster 20 does not work, and now the negative pressure in engine aspirating system 10 is larger, the fuel oil in canister 40
Steam through downtake pipe 611, the first check valve 70, the first interface 61 of venturi valve 60, venturi valve 60 the 3rd interface
63 and the 3rd blast pipe 631 enter engine aspirating system 10, now the second check valve 80 can prevent air cleaner 30
Air-flow afterwards flows through venturi valve 60 through second interface 62, it is to avoid the desorption effect of canister 40 is affected；When engine load compared with
When big, the aperture of air throttle 50 is larger and booster 20 works, and now the air pressure of engine aspirating system 10 is more than atmospheric pressure, its
Middle a part of high pressure draught passes through the 3rd blast pipe 631, the 3rd interface 63 of venturi valve 60, second interface 62, second exhaust
Pipe 621, the second check valve 80 flow to the first air entraining pipe 31, and venturi valve 60 produces Venturi effect, that is, effectively increase the
Pressure differential between two interfaces 62 and first interface 61, venturi valve 60 the second interface 62 positioned at outlet flaring portion produce compared with
Big negative pressure causes the first check valve 70 to open, so that the fuel-steam in canister 40 be adsorbed, passes through engine charge
System 10 is flowed into engine combustion, during this, and the first check valve 70 can prevent air-flow reverse flow into canister 40.Such as
This, it is possible to use the larger negative pressure of the venturi valve 60 formation, stronger flushing air-flow is produced, the fuel oil in canister 40 is steamed
Vapour, which is adsorbed onto in engine, to burn, and can significantly increase the desorption gas flow of canister 40 so that canister 40 is desorbed more dry
Only, vehicle discharge vaporization is advantageously reduced, environmental pollution is reduced.
In other words, the canister desorption apparatus of the present embodiment, by controlling connection between above-mentioned part, in engine
In the presence of negative pressure and venturi valve 60, extraneous clean air is sucked into canister by the air inlet (not shown) of canister 40
40, the fuel-steam of interim storage in carbon dust is rinsed well, and form the mixed gas containing oil gas.Afterwards, mixed gas
Each cylinder for being further sucked into engine is burnt, so that the discharge for reducing hydrocarbon is reached, environmental protection, section
The about purpose of the energy.Realize in underload and the work of booster 20, larger negative pressure can be achieved to the fuel oil in canister 40
Steam is desorbed.
More specifically, the planform of canister 40 is required according to Car design, with different profile and shape, installation position
Putting also can be different, and the installing space being had according to vehicle is installed；First check valve 70 and the second check valve 80 are preferred
For identical structure, and the first check valve 70 and the second check valve 80 are one and fill chaffy valve body, for controlling fuel oil to steam
Vapour one-way trip, i.e. the effect of the first check valve 70 is so that medium flows to first interface 61, the second check valve 80 from canister 40
Effect be so that medium flows to first air entraining pipe 31 from the second interface 62.
It should be further stated that, what all air inlet components after the finger joint valve 50 of engine aspirating system 10 were formed is
System, it is the part being connected with the engine of automobile.
In the present embodiment, the first interface 61 is connected by downtake pipe 611 with the canister 40, and described second connects
Mouthfuls 62 are connected by second exhaust pipe 621 with first air entraining pipe 31, the 3rd interface 63 by the 3rd blast pipe 631 and
The engine aspirating system 10 is connected.Specifically, downtake pipe 611, the blast pipe 631 of second exhaust pipe 621 and the 3rd are equal
It can be made of different materials, it flows mainly for fuel-steam.And downtake pipe 611, second exhaust pipe 621 and
Connection between the two-port and part of three blast pipes 631 can use the modes such as clip, quick connector to be attached and ensure
The sealing of junction.
In the present embodiment, first check valve 70 is on the downtake pipe 611 or the first interface 61.Tool
Body, the quantity of first check valve 70 can be one or more, according to specific increase in demand, and this is first unidirectional
Valve 70 can be arranged directly on first interface 61, thus it is integrated with integral, compact conformation with venturi valve 60, install more square
Just.
In the present embodiment, second check valve 80 is on the second exhaust pipe 621 or the second interface 62.Together
Reason, the quantity of the second check valve 80 can be one or more, according to specific increase in demand, and second check valve
80 can be arranged directly in second interface 62, thus it is integrated with integral, compact conformation with venturi valve 60, install more square
Just.
In the present embodiment, the downtake pipe 611 is provided with the canister for being used for controlling the downtake pipe 611 to switch
Magnetic valve 90.Specifically, there are the magnet coil and valve body original paper of correlation in the inside of Valve EGR 90, for controlling first row
Tracheae 611 carries out switch during desorption work.
In the present embodiment, the booster 20 is turbocharger.Specifically, the cylinder wall thickness of turbocharger, pressure-resistant
Property is good, and service life is long.
The utility model embodiment also provides a kind of automobile, and it includes above-mentioned canister desorption apparatus.
The automobile of the utility model embodiment, the canister desorption apparatus above-mentioned due to having used, then the carbon can be passed through
Tank desorption apparatus forms larger negative pressure and produces stronger flushing air-flow in the course of the work, and the fuel oil in canister 40 is steamed
Vapour, which is adsorbed onto in engine, to burn, and can significantly increase the desorption gas flow of canister 40 so that canister 40 is desorbed more dry
Only, vehicle discharge vaporization is advantageously reduced, environmental pollution is reduced
It is, with above-described good characteristic, to be able to make it using upper, promote to understand the utility model in summary
The efficiency that does not have in conventional art and with practicality, the product as a great practical value.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Any modification, equivalent substitution or improvement made within the thought and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of canister desorption apparatus, including engine aspirating system, booster, air cleaner and canister, the air filter
Connected clearly, passed through between the booster and the engine aspirating system by the first air entraining pipe between device and the booster
Second air entraining pipe is connected, and air throttle is provided with second air entraining pipe；It is characterized in that：The canister desorption apparatus also includes
Venturi valve, the venturi valve is provided with first interface, second interface and the 3rd interface, and the first interface connects with the canister
Logical, the second interface is connected with first air entraining pipe, and the 3rd interface is connected with the engine aspirating system；
Between the first interface and the canister provided with make medium from the canister flow to the first interface it is first unidirectional
Valve, being provided between the second interface and first air entraining pipe makes medium flow to first air entraining pipe from the first interface
The second check valve.
2. canister desorption apparatus according to claim 1, it is characterised in that：The venturi valve include entrance reduced portion,
Cylindrical throat and outlet flaring portion, and the first interface is located at the cylindrical throat, the second interface is located at described
Flaring portion is exported, the 3rd interface is located at the entrance reduced portion.
3. canister desorption apparatus according to claim 1 or 2, it is characterised in that：The first interface passes through first exhaust
Pipe is connected with the canister, and the second interface is connected by second exhaust pipe with first air entraining pipe, the 3rd interface
Connected by the 3rd blast pipe with the engine aspirating system.
4. canister desorption apparatus according to claim 3, it is characterised in that：First check valve is located at the first row
On tracheae or the first interface.
5. canister desorption apparatus according to claim 3, it is characterised in that：Second check valve is located at the second row
On tracheae or the second interface.
6. canister desorption apparatus according to claim 3, it is characterised in that：The downtake pipe, which is provided with, to be used to control
The Valve EGR of the downtake pipe switch.
7. canister desorption apparatus according to claim 1 or 2, it is characterised in that：The booster is turbocharger.
8. a kind of automobile, it is characterised in that：Including the canister desorption apparatus described in any one of claim 1~7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621475085.XU CN206539422U (en) | 2016-12-29 | 2016-12-29 | Automobile and its canister desorption apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621475085.XU CN206539422U (en) | 2016-12-29 | 2016-12-29 | Automobile and its canister desorption apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206539422U true CN206539422U (en) | 2017-10-03 |
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ID=59938409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621475085.XU Active CN206539422U (en) | 2016-12-29 | 2016-12-29 | Automobile and its canister desorption apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN206539422U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217677A (en) * | 2022-02-21 | 2022-10-21 | 广州汽车集团股份有限公司 | Fuel steam desorption system and fuel steam desorption method |
| CN115217648A (en) * | 2021-12-15 | 2022-10-21 | 广州汽车集团股份有限公司 | Method, system, equipment and medium for controlling desorption of engine carbon canister |
-
2016
- 2016-12-29 CN CN201621475085.XU patent/CN206539422U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217648A (en) * | 2021-12-15 | 2022-10-21 | 广州汽车集团股份有限公司 | Method, system, equipment and medium for controlling desorption of engine carbon canister |
| CN115217648B (en) * | 2021-12-15 | 2023-09-01 | 广州汽车集团股份有限公司 | Engine carbon tank desorption control method, system, equipment and medium |
| CN115217677A (en) * | 2022-02-21 | 2022-10-21 | 广州汽车集团股份有限公司 | Fuel steam desorption system and fuel steam desorption method |
| CN115217677B (en) * | 2022-02-21 | 2024-03-01 | 广州汽车集团股份有限公司 | Fuel vapor desorption system and fuel vapor desorption method |
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