CN203867735U - Desorption device for carbon tank of automobile engine - Google Patents
Desorption device for carbon tank of automobile engine Download PDFInfo
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- CN203867735U CN203867735U CN201420296179.5U CN201420296179U CN203867735U CN 203867735 U CN203867735 U CN 203867735U CN 201420296179 U CN201420296179 U CN 201420296179U CN 203867735 U CN203867735 U CN 203867735U
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- desorption
- canister
- air
- stabilizing cavity
- pressure stabilizing
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Abstract
The utility model discloses a desorption device for a carbon tank of an automobile engine. The desorption device comprises a fuel tank and an air inlet pipe. The carbon tank is connected between the fuel tank and the air inlet pipe. An air filter, a supercharger, an intercooler and a pressure stabilizing cavity are sequentially connected to the air inlet pipe in the air inflow direction. A fuel air inlet of the carbon tank is connected with the fuel tank. An atmosphere through hole of the carbon tank is communicated with the pressure stabilizing cavity. A desorption port of the carbon tank is communicated with the air inlet pipe between the supercharger and the air filter. According to the desorption device, desorption of the carbon tank is conducted through a pressure source and hot air on the supercharged engine, so that the pressure difference in the desorption process is substantially increased; in the same desorption time, desorption air flow is increased, and the desorption efficiency of the carbon tank is improved; since the temperature of air in the pressure stabilizing cavity is high, completion of the desorption process of fuel vapor from carbon powder is facilitated, and the desorption efficiency of the carbon tank is further improved; the air in the pressure stabilizing cavity passes through the filter, so the service life of the carbon powder is prolonged since clean air is used for desorption. The desorption device improves the operational capacity of the carbon tank on a finished automobile.
Description
Technical field
The utility model relates to automobile discharge of steam control system, refers to particularly a kind of motor car engine canister desorption apparatus.
Background technique
Because gasoline is a kind of volatile liquid, fuel tank of vehicle is often full of steam at normal temperatures, fuel vaporization and discharge control system is for introducing engine combustion by fuel vapour, preventing that fuel vapour from evaporateing into causes waste of fuel and environmental pollution in atmosphere, in this process, canister plays an important role.
Canister is generally contained between fuel tank and motor, after engine misses, fuel vapour and fresh air are in in-tank mixing and be adsorbed and be stored in activated carbon canister, when after engine start, the electromagnetic valve being contained between activated carbon canister and intake manifold is opened, gasoline vapor in activated carbon canister is brought in cylinder and is participated in burning by clean air under the degree of vacuum effect of suction tude, and canister completes desorption.The size of canister unit time desorption gas amount, that is: desorption efficiency, is determining its ability to work in the actual using process of car load, and at present, because of design limitation, the gas flow of canister desorption is less, and desorption efficiency has much room for improvement.
Summary of the invention
The purpose of this utility model will provide a kind of motor car engine canister desorption apparatus exactly, and this device has improved the desorption efficiency of canister and the ability to work on car load thereof.
For achieving the above object, the technical solution adopted in the utility model is: a kind of motor car engine canister desorption apparatus, comprise fuel tank and suction tude, between described fuel tank and suction tude, be connected with canister, in described suction tude, be connected with successively air filter, pressurized machine, intercooler along airintake direction, and pressure stabilizing cavity, the fuel oil suction port of described canister is connected with described fuel tank, the large vent hole of described canister is communicated with described pressure stabilizing cavity, and the desorption mouth of described canister is communicated with the suction tude between described pressurized machine and described air filter.
The utility model is by being communicated with the large vent hole of canister with pressure stabilizing cavity, and the desorption mouth of canister is communicated with the suction tude between pressurized machine and air filter, thereby the pressure source on application supercharged engine and hot air carry out charcoal tank desorption, specifically, on supercharged engine, air is after pressurized machine and condenser, the relative atmospheric temperature of air temperature promotes, gas pressure improves, in pressure stabilizing cavity, there is malleation, and pressurized machine drives pressurized air by waste gas, in air inlet pipeline under the effect of pressurized machine between pressurized machine and air filter, there is negative pressure, thereby taking the pressure difference at this two place as power source, and taking the air of higher temperature in pressure stabilizing cavity as desorption gas, complete charcoal tank desorption process, because being malleation in pressure stabilizing cavity, before pressurized machine, place is negative pressure, therefore, the utility model has significantly improved the pressure difference of desorption process, under identical desorption time, increase desorption gas flow, improve charcoal tank desorption efficiency, because gas temperature in pressure stabilizing cavity is higher, because charcoal tank absorbs heat in desorption process, use hot air to carry out desorption to charcoal tank and be conducive to fuel-steam disengaging smoothly from carbon dust, further improve charcoal tank desorption efficiency, and the raising of charcoal tank desorption temperature is to rely on the thermal source of motor self, do not need to increase extra electric drive heating plant, air in pressure stabilizing cavity is owing to having passed through filter cleaner, and clean air carries out the working life that desorption process is conducive to improve carbon dust, the utility model is simple in structure, has promoted the ability to work of canister on car load and the discharge vaporization performance of automobile.
Further, the connecting pipeline between large vent hole and the described pressure stabilizing cavity of described canister is provided with the first solenoid valve, and the connecting pipeline between desorption mouth and the described suction tude of described canister is provided with the second solenoid valve.
Further, on the large vent hole of described canister, be connected with atmosphere siphunculus, described atmosphere siphunculus is provided with the 3rd solenoid valve, and the connecting tube between the large vent hole of described canister and described pressure stabilizing cavity is connected with described atmosphere siphunculus.
Brief description of the drawings
Fig. 1 is a kind of structural representation of motor car engine canister desorption apparatus.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, is convenient to more clearly understand the utility model, but they do not form and limit the utility model.
As shown in Figure 1, a kind of motor car engine canister desorption apparatus, comprise fuel tank 1 and suction tude 2, between described fuel tank 1 and suction tude 2, be connected with canister 3, in described suction tude 2, be connected with successively air filter 4 along airintake direction, pressurized machine 5, intercooler 6, and pressure stabilizing cavity 7, the fuel oil suction port 301 of described canister 3 is connected with described fuel tank 1, the large vent hole 302 of described canister 3 is communicated with described pressure stabilizing cavity 7, connecting pipeline between large vent hole 302 and the described pressure stabilizing cavity 7 of described canister 3 is provided with the first solenoid valve 8, the desorption mouth 303 of described canister 3 is communicated with the suction tude 2 between described pressurized machine 5 and described air filter 4, connecting pipeline between desorption mouth 303 and the described suction tude 2 of described canister 3 is provided with the second solenoid valve 9.Wherein, on the large vent hole 302 of described canister 3, be connected with atmosphere siphunculus 10, described atmosphere siphunculus 10 is provided with the 3rd solenoid valve 11, and the connecting tube between the large vent hole 302 of described canister and described pressure stabilizing cavity 7 is connected with described atmosphere siphunculus 10.
Working procedure of the present utility model is as follows: in the time that supercharged engine is flame-out, the 3rd solenoid valve 11 is opened, the first solenoid valve 8 and the second solenoid valve 9 are closed, fuel-steam in fuel tank 1 is stored in charcoal canister 3 through the fuel oil suction port 301 of inhalation valve 12 and canister 3, and canister 3 is carrying out adsorptive process, after supercharged engine starts, air is through air filter 4, pressurized machine 5, after intercooler 6, by pressure stabilizing cavity 7 connecting engine cylinder bodies, air enters engine chamber, pressurized machine 5 drives pressurized air by waste gas, under the effect of pressurized machine 5, after air filter 4, in the air inlet pipeline before pressurized machine 5, there is negative pressure (about ﹣ 3KPa), the interior malleation (about 85KPa) that occurs of pressure stabilizing cavity 7, Engine ECU is closed by pulse signal control the 3rd solenoid valve 11, the first solenoid valve 8 and the second solenoid valve 9 are opened, under gas pressure difference effect in suction tude 2 before pressure stabilizing cavity 7 and pressurized machine 5, the interior hot air of pressure stabilizing cavity 7 is successively through the first solenoid valve 8, the large vent hole 302 of charcoal tank 3, canister 3, the desorption mouth 303 of canister 3, the second solenoid valve 9 enters in suction tude 2, complete the desorption process of charcoal tank 3.
The charcoal tank desorption mouth operated by rotary motion of current supercharged engine is on pressure stabilizing cavity or passing through air-strainer not on the suction tude of pressurized machine, pressure and the atmospheric pressure pressure reduction at desorption mouth place are less, cause under identical desorption time, the gas flow of desorption is less, and desorption efficiency is not high.The utility model is by being communicated with the large vent hole of canister with pressure stabilizing cavity, and the desorption mouth of canister is communicated with the suction tude between pressurized machine and air filter, thereby the pressure source on application supercharged engine and hot air carry out charcoal tank desorption, significantly improve the pressure difference of desorption process, under identical desorption time, increase desorption gas flow, improved charcoal tank desorption efficiency; Because gas temperature in pressure stabilizing cavity is higher, be conducive to fuel-steam and from carbon dust, complete desorption process, further improve charcoal tank desorption efficiency; Air in pressure stabilizing cavity is owing to having passed through filter cleaner, and clean air carries out the working life that desorption process is conducive to improve carbon dust; The utility model is simple in structure, has promoted the ability to work of canister on car load.
Claims (3)
1. a motor car engine canister desorption apparatus, comprise fuel tank (1) and suction tude (2), between described fuel tank (1) and suction tude (2), be connected with canister (3), described suction tude (2) is upper is connected with air filter (4) successively along airintake direction, pressurized machine (5), intercooler (6), and pressure stabilizing cavity (7), it is characterized in that: the fuel oil suction port (301) of described canister (3) is connected with described fuel tank (1), the large vent hole (302) of described canister (3) is communicated with described pressure stabilizing cavity (7), the desorption mouth (303) of described canister (3) is communicated with the suction tude (2) between described pressurized machine (5) and described air filter (4).
2. motor car engine canister desorption apparatus according to claim 1, it is characterized in that: the connecting pipeline between large vent hole (302) and the described pressure stabilizing cavity (7) of described canister (3) is provided with the first solenoid valve (8), the connecting pipeline between desorption mouth (303) and the described suction tude (2) of described canister (3) is provided with the second solenoid valve (9).
3. motor car engine canister desorption apparatus according to claim 1, it is characterized in that: on the large vent hole (302) of described canister (3), be connected with atmosphere siphunculus (10), described atmosphere siphunculus (10) is provided with the 3rd solenoid valve (11), and the connecting tube between the large vent hole of described canister (302) and described pressure stabilizing cavity (7) is connected with described atmosphere siphunculus (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296179.5U CN203867735U (en) | 2014-06-05 | 2014-06-05 | Desorption device for carbon tank of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296179.5U CN203867735U (en) | 2014-06-05 | 2014-06-05 | Desorption device for carbon tank of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203867735U true CN203867735U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420296179.5U Active CN203867735U (en) | 2014-06-05 | 2014-06-05 | Desorption device for carbon tank of automobile engine |
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| CN (1) | CN203867735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033292A (en) * | 2014-06-05 | 2014-09-10 | 东风汽车公司 | Automobile engine charcoal canister desorption device |
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2014
- 2014-06-05 CN CN201420296179.5U patent/CN203867735U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033292A (en) * | 2014-06-05 | 2014-09-10 | 东风汽车公司 | Automobile engine charcoal canister desorption device |
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| GR01 | Patent grant |