CN201277118Y - Fuel oil evaporation pollutant control system - Google Patents
Fuel oil evaporation pollutant control system Download PDFInfo
- Publication number
- CN201277118Y CN201277118Y CNU2008201856353U CN200820185635U CN201277118Y CN 201277118 Y CN201277118 Y CN 201277118Y CN U2008201856353 U CNU2008201856353 U CN U2008201856353U CN 200820185635 U CN200820185635 U CN 200820185635U CN 201277118 Y CN201277118 Y CN 201277118Y
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- valve
- pipe
- fuel evaporation
- fuel
- pressure controlled
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Abstract
The utility model discloses a control system of fuel evaporation pollutants, which comprises an oil-gas separator, a fuel cutting valve, a check valve, a carbon tank and an oil-proof rubber tube, and further comprises a pressure control valve, a three-way pipe and a flow-limiting pipe. The control system of the fuel evaporation pollutants is characterized in that a negative pressure side of the pressure control valve is connected with an air inlet manifold of an engine through the flow-limiting pipe, thereby controlling the amount of recycled fuel evaporation pollutants which are sent into the air inlet manifold of the engine. The check valve and a small air filter are arranged between the pressure control valve and an air inlet side of the carbon tank, thereby increasing the amount of fresh air which is input. An electronic control gulp valve with a flow-limiting valve and an air filter side blow down pipe is arranged between an air outlet side of the carbon tank and an engine system of an engine, thereby controlling the amount of the fuel evaporation pollutants which enter a carburetor and the amount of fresh air which is input by an air filter. The system uses the three measures, which leads the fuel evaporation pollutants which are discharged by the system to be fully recycled and burnt, thereby reducing the exhaust emission, and achieving the purposes of protecting environment and saving energy.
Description
Technical field
The utility model relates to a kind of machinery of small-sized fuel engine or the fuel evaporation pollutant control system that car load is used, and belongs to the engine fuel oil system field.
Background technique
Use the machinery of small-sized fuel engine; as: generator; graden machines such as mowing machine; and the car load that uses small-sized fuel engine; as motorcycle, tricycle, beach buggy, all-terrain vehicle etc.; its fuel tank, Carburetor, crankcase blow parts such as gas leakage, fuel line can give off hydrocarbon and gasoline vapour; this class fuel evaporation pollutant enters atmosphere; befouling environment; therefore be detrimental to health, reduce and prevent that the discharging of small-sized fuel engine fuel evaporation pollutant from being the important topic of protection environment, energy saving.
The effect of fuel evaporation pollutant control system is minimizing and prevents that fuel evaporation pollutants such as hydrocarbon and gasoline vapour from entering a kind of device of atmosphere, what great majority adopted at present is vapor recovery jar (also claiming charcoal canister), active carbon can adsorbing hydrocarbon and gasoline vapour in petrol molecule, when engine running, the fresh air that replenishes is through behind the charcoal canister, the petrol molecule and the hydrocarbon that are adsorbed on the active carbon are sent into the engine intake manifold burning, make it to be fully used; Active carbon in the vapor recovery jar then recovers adsorptive power thereupon, can not lose efficacy too for a long time because of using.The recovery fuel vapor amount that enters engine intake manifold must be controlled, with tamper-proof normal mixed gas composition.
Present by retrieval disclosed documents and materials, fuel evaporation pollutant control system is can only play fuel evaporation pollutant sent in the engine intake manifold once more to burn mostly, reduce fuel evaporation pollutant enter atmosphere effect, but existing fuel evaporation pollutant control system burning is insufficient, inefficiency can not satisfy the requirement of atmospheric environmental standards.A kind of fuel evaporation pollutant that can make of current eager needs fully burns, and can control the fuel evaporation pollutant control system of the recovery fuel evaporation pollutant amount of sending into engine intake manifold.
Summary of the invention
The purpose of this utility model is to provide a kind of can make small-sized oil engine discharging go out hydrocarbon and gasoline vapour fully burns, and can control the recovery hydrocarbon of sending into engine intake manifold and the fuel evaporation pollutant control system of gasoline vapour amount effectively.
In order to achieve the above object, the technical solution of the utility model is: fuel evaporation pollutant control system comprises being installed in deaerator in the fuel tank, fuel-cut valve, one-way valve, canister and oil resistant rubber pipe; Deaerator is taken over the air inlet side of fuel-cut valve; Canister give vent to anger side joint pipe Carburetor and empty filter pipeline enclosure suction tude in the engine start system; Fuel evaporation pollutant control system also comprises pressure controlled valve, three-way pipe and current limiting tube; The fuel-cut valve is given vent to anger the side joint pipe to three-way pipe, and three-way pipe is taken over pressure controlled valve air inlet side, and the other end of three-way pipe connects one-way valve, and one-way valve communicates with atmosphere; Give vent to anger side and the canister air inlet side pipe of pressure controlled valve connect, and the side of giving vent to anger of pressure controlled valve is also taken on the EFI throttle valve of Carburetor in the engine start system; The pressure controlled valve suction side is taken in the engine start system on the inlet manifold between Carburetor and motor through current limiting tube; All connecting tubes are the oil resistant rubber pipe.
The current limiting tube of pressure controlled valve suction side is installed in the negative pressure side pipe of pressure controlled valve.
The current limiting tube of pressure controlled valve suction side also can be installed in the engine start system on the inlet manifold between Carburetor and motor.
The suction side of pressure controlled valve also can connect a throttle valve, and current limiting tube can be installed in arbitrary end of throttle valve.
Be connected with the electric controlled gas-compensation valve between canister and engine start system, canister give vent to anger side joint to the threeway of electric controlled gas-compensation valve, the opposite side of electric control aeration valve threeway is equipped with a current limiting tube, current limiting tube is connected with empty filter in the engine start system, the threeway of electric control aeration valve give vent to anger the side joint pipe in the engine start system on the inlet manifold between Carburetor and motor.
Be connected filter side blowdown pipe between the empty filter in the current limiting tube of electric control aeration valve one side and the engine start system.
Be equipped with a three-way pipe between pressure controlled valve and canister, the pressure controlled valve side of giving vent to anger is connected with canister through three-way pipe, and the other end of three-way pipe connects one-way valve, and one-way valve communicates with atmosphere through little empty filter.
Pressure controlled valve and the fuel-cut valve three-way pipe that side is connected of giving vent to anger, the other end of three-way pipe is equipped with an one-way valve, and this one-way valve side that communicates with atmosphere is installed a little empty filter.
The utility model good effect is: because the utility model adopts following three measures: the one, at the pressure controlled valve suction side current limiting tube is set; The 2nd, between canister and engine start system, be connected with the electric controlled gas-compensation valve, the electric control aeration valve has current limiting tube and empty filter side blowdown pipe; The 3rd, an one-way valve and little empty filter are set between pressure controlled valve and canister, communicate with atmosphere; This three measures can strengthen the fresh air input quantity, and hydrocarbon and gasoline vapour that parts such as fuel tank are discharged fully burn; Flow-limiting valve can be controlled recovery hydrocarbon and the gasoline vapour amount of sending into engine intake manifold effectively simultaneously, thereby improves the working efficiency of system, reduces small-sized fuel engine discharge amount of exhaust gas.
Description of drawings
The embodiment who provides below in conjunction with accompanying drawing does explanation in further detail to the utility model.
Fig. 1 is the utility model embodiment 1 a system schematic;
Fig. 2 is the utility model embodiment 2 a system schematic;
Fig. 3 is the utility model embodiment 3 a system schematic;
Fig. 4 is the utility model embodiment 4 a system schematic;
Fig. 5 is the utility model embodiment 5 a system schematic;
Fig. 6 is the utility model embodiment 6 a system schematic.
Embodiment
Fig. 1 is the utility model embodiment 1 a system schematic; A kind of fuel evaporation pollutant control system comprises the deaerator 1, fuel-cut valve 2, one-way valve 4, canister 6 and the oil resistant rubber pipe 15 that are installed in the fuel tank 11; Deaerator 1 is taken over the air inlet side of fuel-cut valve 2; Canister 6 is given vent to anger the side joint pipe to the Carburetor 7-2 of engine start system 7 and the suction port of empty filter 7-3 pipeline enclosure; This fuel evaporation pollutant control system also comprises pressure controlled valve 3, three-way pipe 5 and current limiting tube 8A; Fuel-cut valve 2 is given vent to anger the side joint pipe to three-way pipe 5, and three-way pipe 5 is taken over pressure controlled valve 3 air inlet sides, and the other end of three-way pipe 5 connects one-way valve 4, and one-way valve 4 communicates with atmosphere; Give vent to anger side and the canister 6 air inlet side pipes of pressure controlled valve 3 connect, and the side of giving vent to anger of pressure controlled valve 3 is also taken on the EFI throttle valve 7-5 of Carburetor 7-2 in the engine start system 7; The suction side 9 of pressure controlled valve 3 connects a throttle valve 8, and current limiting tube 8A is installed in arbitrary end of throttle valve 8, and throttle valve 8 is taken in the engine start system 7 on the inlet manifold 7-4 between Carburetor 7-2 and motor 7-1 through current limiting tube 8A; All connecting tubes are oil resistant rubber pipe 15.
Fig. 2 is the utility model embodiment 2 a system schematic; This system is substantially the same manner as Example 1, it and embodiment 1 do not exist together for: among the embodiment 2,6 of pressure controlled valve 3 and canisters are equipped with a three-way pipe 16, pressure controlled valve 3 side of giving vent to anger is connected with canister 6 through three-way pipe 16, the other end of three-way pipe 16 connects one-way valve 17, and one-way valve 17 communicates with atmosphere through little empty filter 18; In pressure controlled valve 3 suction sides 9 pipes current limiting tube 8A is housed, pressure controlled valve 3 is in current limiting tube 8A is installed in pressure controlled valve 3 negative pressure side pipes.
Fig. 3 is the utility model embodiment 3 a system schematic; This system is substantially the same manner as Example 1, it and embodiment 1 do not exist together for: among the embodiment 3,7 of canister 6 and engine start systems are connected with electric controlled gas-compensation valve 12, canister 6 give vent to anger side joint to the threeway of electric controlled gas-compensation valve 12, the opposite side of electric control aeration valve 12 threeways is equipped with a current limiting tube 13, and current limiting tube 13 is connected with empty filter 7-3 in the engine start system 7; 12 threeways of electric control aeration valve give vent to anger the side joint pipe in the engine start system 7 between Carburetor 7-2 and motor 7-1 on the inlet manifold 7-4.
Fig. 4 is the utility model embodiment 4 a system schematic; This system is substantially the same manner as Example 3, it and embodiment 3 do not exist together for: among the embodiment 4,6 of pressure controlled valve 3 and canisters are equipped with a three-way pipe 16, pressure controlled valve 3 side of giving vent to anger is connected with canister 6 through three-way pipe 16, the other end of three-way pipe 16 connects one-way valve 17, and one-way valve 17 communicates with atmosphere through little empty filter 18; The current limiting tube 8A of the suction side 9 of pressure controlled valve 3 is installed in the engine start system 7 on the inlet manifold 7-4 between Carburetor 7-2 and motor 7-1.
Fig. 5 is the utility model embodiment 5 a system schematic; This system is substantially the same manner as Example 3, it and embodiment 3 do not exist together for: among the embodiment 5,6 of pressure controlled valve 3 and canisters are equipped with a three-way pipe 16, pressure controlled valve 3 side of giving vent to anger is connected with canister 6 through three-way pipe 16, the other end of three-way pipe 16 connects one-way valve 17, and one-way valve 17 communicates with atmosphere through little empty filter 18; Be connected filter side blowdown pipe between the empty filter 7-3 in the current limiting tube 13 of electric controlled gas-compensation valve 12 1 sides and the engine start system 7.
Fig. 6 is the utility model embodiment 6 a system schematic.This system is substantially the same manner as Example 5, it and embodiment 5 do not exist together for: in pressure controlled valve 3 suction sides 9 pipes current limiting tube 8A is housed, pressure controlled valve 3 is directly taken in the engine start system on the inlet manifold 7-4 between Carburetor 7-2 and motor 7-1 through current limiting tube 8A.
Shown in Fig. 1～6, three-way pipe 5 connects an one-way valve 4, and one-way valve 4 side that communicates with atmosphere is installed a little empty filter 10.
The utility model can be followed according to the machinery of small-sized fuel engine or its fuel evaporation pollutant emission status of car load and be accelerated with configuration and combination.Reach the purpose of protection environment, energy saving.
Claims (8)
1, a kind of fuel evaporation pollutant control system comprises the deaerator (1), fuel-cut valve (2), one-way valve (4), canister (6) and the oil resistant rubber pipe (15) that are installed in the fuel tank (11); Deaerator (1) is taken over the air inlet side of fuel-cut valve (2); Canister (6) is given vent to anger the side joint pipe to the suction port of the middle Carburetor (7-2) of engine start system (7) with empty filter (7-3) pipeline enclosure; It is characterized in that: also comprise pressure controlled valve (3), three-way pipe (5) and current limiting tube (8A); Fuel-cut valve (2) is given vent to anger the side joint pipe to three-way pipe (5), and three-way pipe (5) is taken over pressure controlled valve (3) air inlet side, and the other end of three-way pipe (5) connects one-way valve (4), and one-way valve (4) communicates with atmosphere; Give vent to anger side and canister (6) the air inlet side pipe of pressure controlled valve (3) connect, and the side of giving vent to anger of pressure controlled valve (3) is also taken on the EFI throttle valve (7-5) of Carburetor (7-2) in the engine start system (7); Pressure controlled valve (3) suction side (9) is taken in the engine start system (7) on the inlet manifold (7-4) between Carburetor (7-2) and motor (7-1) through current limiting tube (8A); All connecting tubes are oil resistant rubber pipe (15).
2, fuel evaporation pollutant control system according to claim 1 is characterized in that: current limiting tube (8A) is installed in suction side (9) pipe of pressure controlled valve (3).
3, fuel evaporation pollutant control system according to claim 1 is characterized in that: current limiting tube (8A) is installed in the engine start system (7) on the inlet manifold (7-4) between Carburetor (7-2) and motor (7-1).
4, fuel evaporation pollutant control system according to claim 1 is characterized in that: the suction side (9) of described pressure controlled valve (3) connects a throttle valve (8), and current limiting tube (8A) is installed in arbitrary end of throttle valve (8).
5, fuel evaporation pollutant control system according to claim 1, it is characterized in that: be connected with electric controlled gas-compensation valve (12) between described canister (6) and engine start system (7), canister (6) give vent to anger side joint to the threeway of electric controlled gas-compensation valve (12), the opposite side of electric control aeration valve (12) threeway is equipped with a current limiting tube (13), current limiting tube (13) is connected with empty filter (7-3) in the engine start system (7), electric control aeration valve (12) threeway give vent to anger the side joint pipe in the engine start system (7) between Carburetor (7-2) and motor (7-1) on the inlet manifold (7-4).
6, fuel evaporation pollutant control system according to claim 5 is characterized in that: be connected filter side blowdown pipe between the empty filter (7-3) in current limiting tube (13) and the engine start system (7).
7, according to claim 1 or 5 or 6 described fuel evaporation pollutant control systems, it is characterized in that: be equipped with a three-way pipe (16) between pressure controlled valve (3) and canister (6), pressure controlled valve (3) side of giving vent to anger is connected with canister (6) through three-way pipe (16), the other end of three-way pipe (16) connects one-way valve (17), and one-way valve (17) communicates with atmosphere through little empty filter (18).
8, according to claim 1 or 5 or 6 described fuel evaporation pollutant control systems, it is characterized in that: three-way pipe (5) connects an one-way valve (4), and one-way valve (4) side that communicates with atmosphere is installed a little empty filter (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201856353U CN201277118Y (en) | 2008-09-10 | 2008-09-10 | Fuel oil evaporation pollutant control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201856353U CN201277118Y (en) | 2008-09-10 | 2008-09-10 | Fuel oil evaporation pollutant control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277118Y true CN201277118Y (en) | 2009-07-22 |
Family
ID=40894704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201856353U Expired - Fee Related CN201277118Y (en) | 2008-09-10 | 2008-09-10 | Fuel oil evaporation pollutant control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201277118Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464845A (en) * | 2016-01-19 | 2016-04-06 | 河北亚大汽车塑料制品有限公司 | Fuel steam venturi connector and fuel steam discharging control system |
| CN112576422A (en) * | 2020-12-09 | 2021-03-30 | 亚普汽车部件股份有限公司 | Electric control valve, fuel system and fuel filling method |
-
2008
- 2008-09-10 CN CNU2008201856353U patent/CN201277118Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464845A (en) * | 2016-01-19 | 2016-04-06 | 河北亚大汽车塑料制品有限公司 | Fuel steam venturi connector and fuel steam discharging control system |
| CN112576422A (en) * | 2020-12-09 | 2021-03-30 | 亚普汽车部件股份有限公司 | Electric control valve, fuel system and fuel filling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20130910 |