CN206647187U - Supercharging gasoline engine Venturi tube fuel vapor desorption apparatus - Google Patents
Supercharging gasoline engine Venturi tube fuel vapor desorption apparatus Download PDFInfo
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- CN206647187U CN206647187U CN201720420156.4U CN201720420156U CN206647187U CN 206647187 U CN206647187 U CN 206647187U CN 201720420156 U CN201720420156 U CN 201720420156U CN 206647187 U CN206647187 U CN 206647187U
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- venturi tube
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Abstract
The utility model discloses a kind of supercharging gasoline engine Venturi tube fuel vapor desorption apparatus, including with air filter escape pipe, compressor, charge air cooler, inlet manifold, fuel tank, canister and Venturi tube；The inlet end of the outlet side connection compressor of air filter escape pipe, the inlet end of the outlet side connection charge air cooler of compressor, the outlet side of charge air cooler is connected with the first branch pipe and the second branch pipe, the inlet end of the contracting noz(zle) section of the first branch pipe connection Venturi tube, the second branch pipe connection inlet manifold；The oil gas air inlet pipeline section of Venturi tube is by connecting canister, the outlet side connection air filter escape pipe of mixing section.Pass through the swabbing action of Venturi tube, the utility model can realize that canister can be desorbed under whole operating mode, make canister that the fuel vapor of absorption be all desorbed at the appointed time, so as to which when refueling again, canister can effectively adsorb caused fuel vapor in refueling process, both air pollution is reduced, improves fuel utilization ratio again.
Description
Technical field
It the utility model is related to automotive field, more particularly to a kind of supercharging gasoline engine fuel vapor desorption apparatus.
Background technology
When motor vehicle refuels, discharge vaporization when excessive gas concentration is replaced from automotive oil tank than automobile normal work
Gas concentration is several ten times larger, the HC for discharge of refueling（HC is hydrocarbon, herein refers to the fuel evaporated in fuel feeding system）Amount and tail
The HC of gas discharge（Herein refer to the unburned part in engine exhaust）Quite or more.These volatile emissions in refueling process
HC be most chemically active part in gasoline, it is maximum to the photochemical fog contribution function that forms the thing characterized by ozone,
With NOx（Nitrogen oxides）Third contact of a total solar or lunar eclipse chemical reaction is issued in illumination condition, can not only form surface ozone pollutant, Er Qiehui
Produce secondary organic aerosol（SOA）Deng the airborne fine particulate matter more dangerous than PM2.5, can especially be risen to forming haze weather
To the effect added fuel to the flames, and then it is generally reduced air quality.
It is being discharged with the oiling additional issue of gasoline engine plus tight, it is extremely urgent to solve oiling discharge vaporization.Reduce at present
The measure of oiling discharge vaporization mainly has to be increased using ORVR technologies, the volume of canister, and oil tank valve structural reform is FLVV valves, by canister
The caliber of adsorption tube increases.Engine with supercharger is connected with inlet manifold, and the pressure of inlet manifold may when engine with supercharger works
Higher than the pressure at canister, lead to not the oil vapour being desorbed in canister, can not just adsorb in refueling process and produce after canister saturation
Raw fuel vapor.
Utility model content
The purpose of this utility model is to provide a kind of supercharging gasoline engine Venturi tube fuel vapor desorption apparatus solve carbon
The canister when fuel vapor that tank adsorbs in refueling process can not realize desorption when compressor works, cause vehicle to refuel again
Because saturation can not adsorb the problem of caused fuel vapor in refueling process.
To achieve the above object, supercharging gasoline engine Venturi tube fuel vapor desorption apparatus of the present utility model includes and sky
Air filter escape pipe that air cleaner is connected, compressor, charge air cooler, the inlet manifold being connected with engine, fuel tank, canister and
Venturi tube, fuel tank are connected with canister；
Venturi tube includes contracting noz(zle) section, mixing section and oil gas air inlet pipeline section, and the air inlet section diameter of contracting noz(zle) section is big
In its air outlet section diameter, the air inlet section diameter of contracting noz(zle) section is more than mixing section diameter, shrinks air inlet section and mixing section coaxial line
Set, the outlet side of the outlet side of contracting noz(zle) section, the inlet end of mixing section and oil gas air inlet pipeline section intersects；
The inlet end of the outlet side connection compressor of air filter escape pipe, the air inlet of the outlet side connection charge air cooler of compressor
End, the outlet side of charge air cooler are connected with the first branch pipe and the second branch pipe, the contracting noz(zle) section of the first branch pipe connection Venturi tube
Inlet end, the second branch pipe connection inlet manifold；
The oil gas air inlet pipeline section of Venturi tube connects canister by being desorbed pipeline, and the outlet side of the mixing section of Venturi tube connects
Connect the air filter escape pipe.
Desorption pipeline is provided with magnetic valve.
The desorption pipeline is connected by communicating pipe with inlet manifold.
The utility model has the following advantages：
By the swabbing action of Venturi tube, the utility model is avoided in engine with supercharger at work due to air inlet discrimination
The pressure of pipe is more than the oil vapour that the pressure at canister leads to not directly be desorbed in canister, it is possible to achieve the carbon under whole operating mode
Tank can be desorbed, and make canister that the fuel vapor of absorption be all desorbed at the appointed time, so as to the canister energy when refueling again
Caused fuel vapor in enough effectively absorption refueling processes, both reduces air pollution, improves fuel utilization ratio again.
In addition, the utility model is simple in construction, and it is easy to use, it is easy to be transformed on the basis of existing motor vehicle.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of Venturi tube in Fig. 1.
Embodiment
Direction shown in arrow is the flow direction of gas at this in Fig. 1.
As depicted in figs. 1 and 2, supercharging gasoline engine Venturi tube fuel vapor desorption apparatus of the present utility model includes and sky
Air filter escape pipe 1 that air cleaner is connected, compressor 2, charge air cooler 3, the inlet manifold 4 being connected with engine 12, fuel tank
5th, canister 6 and Venturi tube 8；Fuel tank 5 is connected with canister 6.
Venturi tube 8 includes contracting noz(zle) section 9, mixing section 10 and oil gas air inlet pipeline section 11, the air inlet section of contracting noz(zle) section 9
Diameter is more than its air outlet section diameter, and the air inlet section diameter of contracting noz(zle) section 9 is more than the diameter of mixing section 10, shrinks air inlet section with mixing
Section 10 is coaxially set, the outlet side of the outlet side of contracting noz(zle) section 9, the inlet end of mixing section 10 and oil gas air inlet pipeline section 11
Intersect；
The inlet end of the outlet side connection compressor 2 of air filter escape pipe 1, the outlet side connection charge air cooler 3 of compressor 2 enter
Gas end, the outlet side of charge air cooler 3 are connected with the first branch pipe 14 and the second branch pipe 15, and the first branch pipe 14 connects the receipts of Venturi tube 8
The inlet end of contracting nozzle segment 9, the second branch pipe 15 connection inlet manifold 4；
The oil gas air inlet pipeline section 11 of Venturi tube 8 connects canister 6, the mixing section 10 of Venturi tube 8 by being desorbed pipeline 13
Outlet side be connected by vibrating friction welding (FW) with the air filter escape pipe 1.Desorption pipeline 13 is provided with magnetic valve 7.
The desorption pipeline 13 is connected by communicating pipe 16 with inlet manifold 4.
Wherein, air filter escape pipe 1, compressor 2, charge air cooler 3, inlet manifold 4, fuel tank 5, canister 6, magnetic valve 7, venturi
Pipe 8 is existing apparatus, and concrete structure is no longer described in detail.
During desorption, magnetic valve 7 is opened, when compressor 2 does not work, the oil gas in canister 6 can directly be entered by communicating pipe 16
Enter inlet manifold 4, realize that canister 6 is desorbed；When compressor 2 works, the fresh air that air cleaner is sent out enters through compressor 2
Charge air cooler 3 cools down, and then the fresh air after part supercharging is sent into the contracting noz(zle) section 9 of Venturi tube 8, by reducing diameter part
Speedup decompression after point, subsequently into mixing section 10.In the process, in the outlet side of contracting noz(zle) section 9, the air inlet of mixing section 10
End and the outlet side place of intersecting of oil gas air inlet pipeline section 11 produce low pressure, and the oil gas in canister 6 is inhaled through being desorbed the section of pipeline 13
Enter Venturi tube 8, in mixing section 10, oil gas and fresh air mixing.Mixed gas enters air filter escape pipe 1, through pressure
After mechanism of qi 2 and charge air cooler 3, burn and use into the supply engine 12 of inlet manifold 4.
The utility model is avoided in engine with supercharger 12 at work because the pressure at inlet manifold 4 is more than canister 6
The pressure at place leads to not the oil vapour in directly desorption canister 6, it is possible to achieve ensures that canister 6 can take off under whole operating mode
It is attached, make canister 6 that the fuel vapor of absorption be all desorbed at the appointed time, during so as to ensure group refueling, canister 6 can have
Caused fuel vapor in effect absorption refueling process.
Above example is only to illustrative and not limiting the technical solution of the utility model, although with reference to above-described embodiment pair
The utility model is described in detail, it will be understood by those within the art that：The utility model can still be entered
Row modification or equivalent substitution, without departing from any modification or partial replacement of spirit and scope of the present utility model, it all should
Cover among right of the present utility model.
Claims (3)
1. supercharging gasoline engine Venturi tube fuel vapor desorption apparatus, it is characterised in that：Including what is be connected with air cleaner
Air filter escape pipe, compressor, charge air cooler, the inlet manifold being connected with engine, fuel tank, canister and Venturi tube, fuel tank with
Canister is connected；
Venturi tube includes contracting noz(zle) section, mixing section and oil gas air inlet pipeline section, and the air inlet section diameter of contracting noz(zle) section is more than it
Air outlet section diameter, the air inlet section diameter of contracting noz(zle) section are more than mixing section diameter, shrink air inlet section and are coaxially set with mixing section,
The outlet side of the outlet side of contracting noz(zle) section, the inlet end of mixing section and oil gas air inlet pipeline section intersects；
The inlet end of the outlet side connection compressor of air filter escape pipe, the inlet end of the outlet side connection charge air cooler of compressor, in
The outlet side of cooler is connected with the first branch pipe and the second branch pipe, the air inlet of the contracting noz(zle) section of the first branch pipe connection Venturi tube
End, the second branch pipe connection inlet manifold；
The oil gas air inlet pipeline section of Venturi tube connects canister, the outlet side connection institute of the mixing section of Venturi tube by being desorbed pipeline
State air filter escape pipe.
2. supercharging gasoline engine Venturi tube fuel vapor desorption apparatus according to claim 1, it is characterised in that：Desorption pipe
Road is provided with magnetic valve.
3. supercharging gasoline engine Venturi tube fuel vapor desorption apparatus according to claim 1, it is characterised in that：It is described de-
Attached pipeline is connected by communicating pipe with inlet manifold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720420156.4U CN206647187U (en) | 2017-04-20 | 2017-04-20 | Supercharging gasoline engine Venturi tube fuel vapor desorption apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720420156.4U CN206647187U (en) | 2017-04-20 | 2017-04-20 | Supercharging gasoline engine Venturi tube fuel vapor desorption apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206647187U true CN206647187U (en) | 2017-11-17 |
Family
ID=60276407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720420156.4U Expired - Fee Related CN206647187U (en) | 2017-04-20 | 2017-04-20 | Supercharging gasoline engine Venturi tube fuel vapor desorption apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206647187U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223201A (en) * | 2018-01-17 | 2018-06-29 | 恒勃控股股份有限公司 | A kind of fuel evaporation control desorption apparatus of fuel tank for automobile |
| CN109958552A (en) * | 2017-12-25 | 2019-07-02 | 长城汽车股份有限公司 | Fuel-steam desorption system and vehicle |
| CN110657048A (en) * | 2018-06-29 | 2020-01-07 | 重庆金康新能源汽车有限公司 | Desorption structure for fuel oil in air inlet pipe |
| CN110953094A (en) * | 2019-12-30 | 2020-04-03 | 东风富士汤姆森调温器有限公司 | Fuel evaporation and desorption system of small-displacement turbocharged vehicle type and control method thereof |
-
2017
- 2017-04-20 CN CN201720420156.4U patent/CN206647187U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958552A (en) * | 2017-12-25 | 2019-07-02 | 长城汽车股份有限公司 | Fuel-steam desorption system and vehicle |
| CN109958552B (en) * | 2017-12-25 | 2021-02-26 | 长城汽车股份有限公司 | Fuel steam desorption system and vehicle |
| CN108223201A (en) * | 2018-01-17 | 2018-06-29 | 恒勃控股股份有限公司 | A kind of fuel evaporation control desorption apparatus of fuel tank for automobile |
| CN110657048A (en) * | 2018-06-29 | 2020-01-07 | 重庆金康新能源汽车有限公司 | Desorption structure for fuel oil in air inlet pipe |
| CN110953094A (en) * | 2019-12-30 | 2020-04-03 | 东风富士汤姆森调温器有限公司 | Fuel evaporation and desorption system of small-displacement turbocharged vehicle type and control method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171117 Termination date: 20200420 |
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| CF01 | Termination of patent right due to non-payment of annual fee |