CN204299748U - A kind of spring fuel regulator valve - Google Patents
A kind of spring fuel regulator valve Download PDFInfo
- Publication number
- CN204299748U CN204299748U CN201420749230.3U CN201420749230U CN204299748U CN 204299748 U CN204299748 U CN 204299748U CN 201420749230 U CN201420749230 U CN 201420749230U CN 204299748 U CN204299748 U CN 204299748U
- Authority
- CN
- China
- Prior art keywords
- valve
- fuel
- spool
- spring
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
The utility model discloses a kind of spring fuel regulator valve, comprise the fuel regulator valve on the fuel pipe that is arranged between carburetor and fuel tank, described fuel regulator valve mainly comprises valve body, valve seat, spool and spring, described spring is arranged on above valve seat, spool is provided with above spring, the main valve chamber of sealing is formed between valve body and valve seat, described spool is by adopting high density material, slit opening is set, arrange in balancing weight three kinds of modes one or more increase weight subtract floating, the spool buoyancy be under oil bath environment in main valve chamber is made to be less than its deadweight, valve body upper inner is provided with valve port, the plug coordinated with it is provided with below described valve port, the spool of the affixed below of described plug, the aperture A as oil-out is provided with at seat bottom portion, the aperture B as oil-in is provided with outside the valve port on valve body top.Adopt the utility model, when engine tilts to a certain extent time, fuel regulator valve can be closed automatically, cuts off the fuel pipe between carburetor and fuel tank, has and implements the advantage simple, cost is low, reliability is high.
Description
Technical field
The utility model belongs to carburetor engine technical field, particularly relates to a kind of spring fuel regulator valve being arranged at fuel pipe between carburetor and fuel tank.
Background technology
The fuel oil supply system of carburetor engine is relatively simple, and cost performance is high, and at general purpose engine, generating set, water pump, graden machine, agricultural machinery, the sector applications such as boats and ships are extensive.
Carburetor is under the cylinder suction function of engine piston motion generation, by the mechanical device that a certain proportion of gasoline mixes with air.Have the float of band needle-valve in float carburettor, outside fuel oil enters carburetor by inlet nozzle, and under the effect of float buoyancy, needle-valve can control the opening and closing of the oil-feed valve port be communicated with inlet nozzle, with the fuel level in stable float chamber.The balance pipe communicated with the external world is also provided with at float chamber top; the carburetor balance pipe of outer balanced type communicates with ambient atmosphere; the carburetor balance pipe of internal balance type generally communicates with air filter, to keep float chamber air pressure inside to stablize, guarantees that carburetor normally works.
When carburetor works, fuel oil from float chamber along upper oil pipe, main jet pipe is inhaled into trunnion and mixes with air, motor intake manifold and trunnion are connected to combustion chamber and carry gaseous mixture.The primary air passage be connected with main jet pipe communicates with the external world, for it provides air, to increase the atomizing effect of fuel oil.In addition fuel oil also enters idling passage from upper oil pipe, and the engine for idling operation provides idling gaseous mixture, and idling passage is connected with the external world with inlet manifold.
Due to the main jet pipe of carburetor, primary air passage, idling passage and balance pipe all can communicate with inlet manifold or the external world, when engine tilts to a certain extent time, because float needle valve cannot normally close oil-feed valve port, oil tank fuel is caused to enter carburetor bowl in a large number, cause the fuel level of carburettor float indoor too high, fuel oil will via main jet pipe, primary air passage, idling passage or balance pipe leak, not only waste fuel oil, and the fuel oil revealed enters engine chamber in a large number from inlet manifold and can cause engine cannot normal starting, and be leaked to extraneous fuel oil pollution environment, easily cause potential safety hazard.
Fuel regulator valve of the present utility model is conceived to the deficiency of existing carburetor engine fuel oil supply system just, the fuel pipe between carburetor and fuel tank adds the mechanical fuel control valve that automatically can cut off oil circuit based on spring.
Utility model content
The purpose of this utility model is to overcome prior art Problems existing, provides a kind of spring fuel regulator valve.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
A kind of spring fuel regulator valve, comprise the fuel regulator valve on the fuel pipe that is arranged between carburetor and fuel tank, described fuel regulator valve mainly comprises valve body, valve seat, spool and spring, described spring is arranged on above valve seat, spool is provided with above spring, the main valve chamber of sealing is formed between valve body and valve seat, described spool is by adopting high density material, slit opening is set, arrange in balancing weight three kinds of modes one or more increase weight subtract floating, the spool buoyancy be under oil bath environment in main valve chamber is made to be less than its deadweight, valve body upper inner is provided with valve port, the plug coordinated with it is provided with below described valve port, the spool of the affixed below of described plug, the aperture A as oil-out is provided with at seat bottom portion, the aperture B as oil-in is provided with outside the valve port on the top of valve body.
Further, the opening part of described aperture A is provided with sealing ring, and aperture A is communicated with the inlet nozzle on carburetor by sealing circle.
Further, the opening part of described aperture B is provided with sealing ring, and aperture B is communicated with the oil outlet on fuel tank by sealing circle.
Further, described aperture A is communicated with the inlet nozzle on carburetor by oil pipe A, and described aperture B is communicated with the oil outlet on fuel tank by oil pipe B.
The beneficial effects of the utility model are:
After adopting the utility model, when engine tilts to a certain extent time, fuel regulator valve can be closed automatically by spring, cut off the fuel pipe between carburetor and fuel tank, fuel oil can not enter carburetor bowl again, prevents the fuel oil in fuel tank from leaking from carburetor, play saving fuel, prevent the pollution of the environment, improve the effect of engine reliability, and enforcement is simple, cost is low, reliability is high.
Accompanying drawing explanation
Fig. 1 is the fuel regulator valve front view of the utility model embodiment one;
Fig. 2 is the fuel regulator valve A-A sectional view of the utility model embodiment one;
Fig. 3 is the fuel regulator valve B-B sectional view of the utility model embodiment one;
Fig. 4 is the spool top view of the utility model fuel regulator valve;
Fig. 5 is the spool front view of the utility model fuel regulator valve;
Fig. 6 is the spool C-C sectional view of the utility model fuel regulator valve;
Fig. 7 is the spool D-D sectional view of the utility model fuel regulator valve;
Fig. 8 is the spool E-E sectional view of the utility model fuel regulator valve;
Fig. 9 is the spool F-F sectional view of the utility model fuel regulator valve;
Figure 10 is the spool top perspective view of the utility model fuel regulator valve;
Figure 11 is the spool bottom perspective view of the utility model fuel regulator valve;
Figure 12 is valve seat and the spring stereogram of the utility model embodiment one;
Figure 13 is the fuel regulator valve stereogram of the utility model embodiment one;
Figure 14 is the fuel regulator valve explosive view of the utility model embodiment one;
Figure 15 is the stereogram that the fuel regulator valve of the utility model embodiment one is connected with carburetor;
Figure 16 is the sectional view that the fuel regulator valve of the utility model embodiment one is connected with carburetor;
Figure 17 is the fuel regulator valve application stereogram (having removed air filter of engine, fuel tank and oil pipe) on the engine of the utility model embodiment one;
Figure 18 is the fuel regulator valve front view of the utility model embodiment two;
Figure 19 is the fuel regulator valve stereogram of the utility model embodiment two;
Figure 20 is the fuel regulator valve explosive view of the utility model embodiment two;
Figure 21 is the sectional view that the fuel regulator valve of the utility model embodiment two is connected with fuel tank;
Figure 22 is the fuel regulator valve front view of the utility model embodiment three;
Figure 23 is the fuel regulator valve stereogram of the utility model embodiment three;
Figure 24 is the fuel regulator valve explosive view of the utility model embodiment three;
Figure 25 is the sectional view that the fuel regulator valve of the utility model embodiment three is connected with carburetor and fuel tank.
Number in the figure illustrates: 1. fuel regulator valve, 2. valve body, 201. aperture B, 202. valve ports, 3. valve seat, 301. aperture A, 4. spools, 401. plugs, 402. slit openings, 5. spring, 6. sealing ring, 7. oil pipe A, 8. oil pipe B, 9. carburetor, 901. float chambers, 902. floats, 903. needle-valves, 904. inlet nozzles, 905. oil-feed valve port, 10. fuel tanks, 1001. fuel tank cap, 1002. oil outlets, 11. engines, 1101. cylinder heads, 1102. crankcases, 1103. wind scoopers, 1104. starters, 1105. silencers.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
The utility model provides 3 kinds of embodiments:
1, embodiment one:
As shown in Fig. 1 to Figure 17, fuel regulator valve 1 is made up of valve body 2, valve seat 3, spool 4, spring 5 and sealing ring 6.Spring 5 is placed on valve seat 3 top, spool 4 is placed on above spring 5, aperture A 301 is provided with bottom valve seat 3, aperture A 301 is the oil-out of fuel regulator valve 1, aperture A's 301 is opening down, be provided with sealing ring 6 in opening, aperture A 301 is directly communicated with the inlet nozzle 904 on carburetor 9 by sealing ring 6.
The upper outside of valve body 2 is provided with aperture B 201, and aperture B 201 is the oil-in of fuel regulator valve 1, and this aperture B 201 is communicated with the oil outlet 1002 on fuel tank 10 by oil pipe.
For avoiding fuel flow direction to disturb spool 4 action, the utility model is using the aperture A 301 of this fuel regulator valve 1 as oil-out, and aperture B 201 is as oil-in.
Valve body 2 upper inner is provided with valve port 202, and this valve port 202 can be closed by the plug 401 on spool 4 top, and then fuel regulator valve 1 is in closed condition, and fuel regulator valve 1 is closed rear carburetor 9 and is no longer communicated with fuel tank 10.
Link together valve seat 3 and valve body 2 peripheral sealing, can the connected modes such as welding be adopted.
When engine 11 does not tilt, fuel regulator valve 1 is in vertical state, and now spool 4 is in extreme lower position, and valve port 202 is opened, and fuel regulator valve 1 is in opening, and the fuel oil now in fuel tank 10 enters carburetor 9 by oil pipe and fuel regulator valve 1.When engine 11 tilts to a certain degree, spring 5 will promote spool 4 close port 202, and make fuel regulator valve 1 be in closed condition, the oil circuit now between carburetor 9 and fuel tank 10 is cut off by fuel regulator valve 1.
Because fuel regulator valve 1 is connected in the oil circuit between carburetor 9 and fuel tank 10, fuel regulator valve 1 inside is always full of fuel oil, and therefore spool 4 is also submerged in fuel oil.Although spool 4 of the present utility model is close with existing a kind of anti-dumping pressure control valve float outward appearance, but there is the difference of essence: anti-dumping pressure control valve is because function needs, require that float can float in fuel oil and close anti-dumping pressure control valve, revealed by anti-dumping pressure control valve to prevent fuel oil, therefore float is designed to the cavity structure of top seal, to produce the buoyancy being greater than float weight, float is floated close port 202 in fuel oil.And spool 4 of the present utility model is absolutely not allow to float in fuel oil, namely the utility model requires that spool 4 buoyancy suffered in fuel oil is less than the weight of spool 4, otherwise will cause carburetor 9 failure of oil feed.Therefore spool 4 top design of the present utility model has multiple slit opening 402, and spool 4 is without the cavity structure of top seal, and therefore spool 4 can not float in fuel oil.Certain spool 4 also can not establish slit opening 402, and take the method increasing spool weight to make " weight that the buoyancy of spool 4 suffered by fuel oil is less than spool 4 ", such as spool 4 adopts highdensity material manufacture, or on spool 4, balancing weight is set, just manufacturing cost can be increased like this, but these still can be used as alternative of the present utility model.
The course of work the following detailed description of this fuel regulator valve 1:
Be provided with spring 5 between valve seat 3 and spool 4, spring 5 is placed on valve seat 3 top, and spool 4 is placed on above spring 5.When engine 11 does not tilt, because fuel regulator valve 1 is vertically installed, spool 4 overcomes fuel oil buoyancy suffered by spool 4 with total weight and removes Compress Spring 5, because this spring 5 is designed to: the elastic force after compression is less than " spool 4 weight " and the difference of " spool 4 is suffered buoyancy in fuel oil ", although therefore spool 4 is submerged in fuel oil, be subject to again spring 5 power effect upwards, but still can sink to the end at self gravitation effect bottom spool 4, contact with valve seat 3 bottom spool 4, spool 4 is in extreme lower position, valve port 202 on valve body 2 is opened, fuel regulator valve 1 is in opening, fuel oil in fuel tank 10 enters carburetor 9 by oil pipe and fuel regulator valve 1, can be engine 11 normal fuel injection.
When engine 11 tilts, fuel regulator valve 1 also tilts thereupon, the pressure size that now spool 4 is applied to spring 5 equals " sliding force " of spool 4 along valve body 2 inwall, when engine 11 angle of inclination increases gradually, this " sliding force " will reduce gradually, when inclination angle increases to a certain degree, spring 5 elastic force can be greater than the difference of this " sliding force " and " spool 4 buoyancy suffered by fuel oil is along the component obliquely of valve body 2 inwall ", then spring 5 overcomes spool 4 resistance of motion promotion spool 4 close port 202, fuel regulator valve 1 is made to be in closed condition, thus the oil circuit between carburetor 9 and fuel tank 10 is cut off by fuel regulator valve 1, carburetor 9 is entered to outward leakage to prevent fuel tank 10 fuel oil.
In sum, when only having engine 11 to tilt to acquire a certain degree, fuel regulator valve 1 just can cut off the oil circuit between carburetor 9 and fuel tank 10, prevent fuel tank 10 fuel oil from entering carburetor 9 to outward leakage, in other situations, fuel regulator valve 1 remains opening, is engine 11 carburetor 9 normal fuel injection.
2, embodiment two:
Compared with embodiment one, the difference of embodiment two is that fuel regulator valve 1 is different from the connected mode of carburetor 9 and fuel tank 10:
As shown in Figure 18 to Figure 21, this fuel regulator valve 1 is made up of valve body 2, valve seat 3, spool 4, spring 5 and sealing ring 6, be with the main distinction of embodiment one: the aperture B 201 of the upper outside of valve body 2 is opening up, sealing ring 6 is provided with in opening, aperture B 201 is directly communicated with the oil outlet 1002 on fuel tank 10 by sealing ring 6, and the aperture A 301 on valve seat 3 is communicated with carburetor 9 inlet nozzle 904 by oil pipe.
3, embodiment three:
Compared with embodiment one, the difference of embodiment three is that fuel regulator valve 1 is different from the connected mode of carburetor 9 and fuel tank 10:
As shown in Figure 22 to Figure 25, this fuel regulator valve 1 is made up of valve body 2, valve seat 3, spool 4 and spring 5, be with the main distinction of embodiment one: the aperture A 301 on valve seat 3 is communicated with carburetor 9 inlet nozzle 904 by oil pipe A 7, the aperture B 201 of valve body 2 upper outside is communicated with the oil outlet 1002 on fuel tank 10 by oil pipe B 8.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a spring fuel regulator valve, comprise the fuel regulator valve (1) on the fuel pipe that is arranged between carburetor and fuel tank, it is characterized in that, described fuel regulator valve (1) mainly comprises valve body (2), valve seat (3), spool (4) and spring (5), described spring (5) is arranged on above valve seat, spring (5) top is provided with spool (4), the main valve chamber of sealing is formed between valve body (2) and valve seat (3), described spool (4) is by adopting high density material, slit opening (402) is set, arrange in balancing weight three kinds of modes one or more increase weight subtract floating, spool (4) buoyancy be under oil bath environment in main valve chamber is made to be less than its deadweight, valve body (2) upper inner is provided with valve port (202), described valve port (202) below is provided with the plug (401) coordinated with it, the spool (4) of described plug (401) affixed below, the aperture A(301 as oil-out is provided with) in valve seat (3) bottom, valve port (202) outside on valve body (2) top is provided with the aperture B(201 as oil-in).
2. spring fuel regulator valve according to claim 1, it is characterized in that, described aperture A(301) opening part be provided with sealing ring (6), aperture A (301) is communicated with the inlet nozzle (904) on carburetor (9) by sealing ring (6).
3. spring fuel regulator valve according to claim 1, it is characterized in that, described aperture B(201) opening part be provided with sealing ring (6), aperture B (201) is communicated with the oil outlet (1002) on fuel tank (10) by sealing ring (6).
4. spring fuel regulator valve according to claim 1, it is characterized in that, described aperture A(301) by oil pipe A(7) be communicated with the inlet nozzle (904) on carburetor (9), described aperture B(201) by oil pipe B(8) be communicated with the oil outlet (1002) on fuel tank (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749230.3U CN204299748U (en) | 2014-12-04 | 2014-12-04 | A kind of spring fuel regulator valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749230.3U CN204299748U (en) | 2014-12-04 | 2014-12-04 | A kind of spring fuel regulator valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299748U true CN204299748U (en) | 2015-04-29 |
Family
ID=53105293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420749230.3U Expired - Fee Related CN204299748U (en) | 2014-12-04 | 2014-12-04 | A kind of spring fuel regulator valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204299748U (en) |
-
2014
- 2014-12-04 CN CN201420749230.3U patent/CN204299748U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8708256B2 (en) | Fuel injection valve | |
| US11041465B2 (en) | Charge forming device with electrically actuated vapor separator vent valve | |
| CN204299723U (en) | A kind of Carburetor overturning-preventing structure based on external fuel oil container | |
| US8573567B2 (en) | Carburetor including one-piece fuel-metering insert | |
| CN204386786U (en) | A kind of steel ball type fuel regulator valve | |
| US9702327B2 (en) | System and method for introducing gas into engine cylinder | |
| CN204299748U (en) | A kind of spring fuel regulator valve | |
| CN104481762A (en) | Spring type fuel control valve | |
| CN108180094B (en) | Built-in tiltable general gasoline engine fuel supply system | |
| CN104481738B (en) | Carburetor balancing-hole toppling prevention structure based on annular pipeline | |
| CN104454269A (en) | Steel ball type fuel oil control valve | |
| CN204327317U (en) | A kind of Carburetor equalizing orifice anti-tipping apparatus based on anti-dumping pressure control valve | |
| CN104454242A (en) | Anti-toppling device for balanced hole of carburetor based on anti-toppling valve | |
| CN210460898U (en) | High-pressure gas injection control driving valve, gas injection system and engine | |
| CN207905969U (en) | Built-in tiltable general gasoline engines fuel oil supply system | |
| CN204386768U (en) | A kind of Carburetor equalizing orifice overturning-preventing structure based on looped pipeline | |
| CN212202289U (en) | Diaphragm carburetor and engine assembly with same | |
| CN210343529U (en) | Novel oil feeding system | |
| CN203412684U (en) | Anti-dumping valve | |
| CN104454243B (en) | Anti-toppling carburetor structure based on external fuel oil container | |
| CN207761829U (en) | The mechanical gas intake valve of middling speed gas/dual fuel engine | |
| CN216588864U (en) | Two-stroke fuel mixing control valve of carburetor | |
| JPS6311328Y2 (en) | ||
| CN213116506U (en) | Electronic injection fuel pump assembly integrated with GVV valve and FLVV valve | |
| CN109356758A (en) | A kind of engine fuel system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20181204 |