CN208803911U - A kind of fuel changing-over device for dual-fuel carburetor - Google Patents
A kind of fuel changing-over device for dual-fuel carburetor Download PDFInfo
- Publication number
- CN208803911U CN208803911U CN201821327695.4U CN201821327695U CN208803911U CN 208803911 U CN208803911 U CN 208803911U CN 201821327695 U CN201821327695 U CN 201821327695U CN 208803911 U CN208803911 U CN 208803911U
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- China
- Prior art keywords
- switch
- fuel
- carburetor
- relief vent
- pressure relief
- 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.)
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
The utility model discloses a kind of fuel changing-over devices for dual-fuel carburetor, including pressure pipeline, Fuel switching switch, take oilhole plugging module, the connection of the mixing chamber of pressure pipeline one end and carburetor, the other end is connect with the negative pressure cavity of oilhole plugging module is taken, the seal modules that the pressure pipeline is equipped with pressure relief vent, blocks pressure relief vent, the Fuel switching switch includes first switch, second switch, third switch, and first switch drives second switch, third switch.The utility model setting Fuel switching switchs, takes oilhole plugging module, using a variety of cooperations of Fuel switching switch and negative pressure cavity, pressure relief vent, realizes the supply to carburetor Oil/gas Fuels, it is switched fast different fuel, fuel supply is controlled, fuel losses are avoided, improves engine health, it can guarantee the stability of carburetor work simultaneously, pressure pipeline pressure instability is avoided, excessively strain diaphragm assembly, improves its service life, cost is reduced, is economized on resources.
Description
Technical field
The utility model belongs to carburetor field, specifically, being related to a kind of Fuel switching for dual-fuel carburetor
Device.
Background technique
Dual-fuel carburetor is to mix with air a certain proportion of fuel under the vacuum action that engine operation generates
Mechanical device, the selection of fuel is mostly gasoline and natural gas at present, and many dual-fuel carburetors are using control Vavle switchings, at present
The switching device of use, inconvenient using switching, the mixing of pressure instability oil and gas gradually will appear gas leakage oil leak, give engine band
Carry out security risk, while service life reduces, and virtually increases use cost.
In view of this special to propose the utility model.
Utility model content
It is a kind of for double fuel the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide
The fuel changing-over device of oily device, in order to solve the above technical problems, the basic idea of the utility model adopting the technical scheme is:
A kind of fuel changing-over device for dual-fuel carburetor, including pressure pipeline, Fuel switching switch, oilhole are taken to seal
The mixing chamber of stifled module, pressure pipeline one end and carburetor connects, and the other end is connect with the negative pressure cavity of oilhole plugging module is taken, institute
Seal modules of the pressure pipeline equipped with pressure relief vent, closure pressure relief vent are stated, the Fuel switching switch includes first switch, second
Switch, third switch, first switch drive second switch, third to switch, and the gasoline inlet pipe of first switch and carburetor connects, the
Two switches are connect with the combustion gas inlet pipe of carburetor, and third switch is connected on pressure pipe road, control the circulation of pressure pipeline, and energy
Driving seal modules are to open pressure relief vent, and between third switch and negative pressure cavity, the Fuel switching is opened for the pressure relief vent setting
Pass is at least able to achieve two states:
First state, first switch are closed, and second switch is opened, and third switch is opened and do not drive seal modules, take oil
Plugging module closing in hole takes oilhole；
Second state, first switch are opened, and second switch is closed, and third switch is closed and driving seal modules open release
Hole takes oilhole plugging module not close and takes oilhole.
Further, described that oilhole plugging module is taken to include chamber lid, diaphragm assembly, connect bolt, the first magnet, the second magnetic
Iron, return spring, sealing mandril, the chamber lid and carburetor are connected and fixed connection and form cavity, the diaphragm assembly and carburetion
Cavity is simultaneously separated into negative pressure cavity, counter balance pocket by device connection, and chamber lid is equipped with the balance hole for being connected in the external world with counter balance pocket, the connection
Bolt is connect with carburetor, and connection bolt is equipped with mesoporous, and first magnet one end connect with diaphragm assembly, during the other end is located at
It is slided in hole, second magnet is located in mesoporous and can slide, and described sealing mandril one end is connect with the second magnet, the other end
Take oilhole to take oilhole with merging can block with carburetor, the return spring, which is set in, to be sealed on mandril, first magnet and
The end mutual exclusion adjacent to each other of second magnet.
Further, described to take oilhole plugging module include sealing block, and sealing block is in concave, and sealing block is mounted in mesoporous
And between the first magnet, the second magnet, the groove of the first magnet one end and sealing block far from diaphragm assembly is slidably connected.
Further, the seal modules include pressure relief vent button, sealing block, the compression bullet being located inside pressure pipeline
Spring, pressure relief vent button are connect with sealing block, and compressed spring is set in fixed link, and the compressed spring is connect with sealing block,
Pressure relief vent button can be blocked pressure relief vent under elastic force effect.
Further, the first switch engages drive connection with second switch, third switch, and third switch is equipped with ellipse
Piece, the elliptical piece and pressure relief vent snap fit, can be by pressure relief vent button press so that pressure relief vent is not closed.
Further, the first switch, second switch, third switch word order, first switch are nibbled with second switch
Connection is closed, second switch engages connection with third switch, and third switch is equipped with elliptical piece, and the elliptical piece is matched with pressure relief vent button
It closes, it can be by pressure relief vent button press so that pressure relief vent is not closed.
Further, the first switch is also able to achieve the third state: first switch is closed, and second switch is closed, third
Switch is opened and does not drive seal modules, and the closing of oilhole plugging module is taken to take oilhole.
After adopting the above technical scheme, the utility model has the advantages that compared with prior art.
The utility model setting Fuel switching switch, take oilhole plugging module, using Fuel switching switch with negative pressure cavity, unload
A variety of cooperations in hole are pressed, realize the supply to carburetor Oil/gas Fuels, are switched fast different fuel, control fuel supply avoids
Fuel losses improve engine health, while can guarantee the stability of carburetor work, avoid pressure pipeline pressure not
Surely, excessively strain diaphragm assembly, improves its service life, reduces cost, economizes on resources.
The utility model is structurally reasonable, practical, has biggish application value.
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
The a part of attached drawing as the application, is further understood from the utility model for providing, the utility model
Illustrative embodiments and their description for explaining the utility model, but do not constitute improper limits to the present invention.Obviously,
The accompanying drawings in the following description is only some embodiments, to those skilled in the art, is not paying creative labor
Under the premise of dynamic, it can also be obtained according to these attached drawings other accompanying drawings.In the accompanying drawings:
Fig. 1 is an embodiment of the present invention structural schematic diagram；
Fig. 2 is that an embodiment of the present invention Fuel switching switchs first state schematic diagram；
Seal modules operation schematic diagram when Fig. 3 is an embodiment of the present invention first state；
Fig. 4 is the second status diagram of an embodiment of the present invention Fuel switching switch；
Seal modules operation schematic diagram when Fig. 5 is the second state of an embodiment of the present invention.
In figure: 1- mixing chamber；2- pressure pipeline；21- pressure relief vent；3- Fuel switching switch；31- first switch；32- second
Switch；33- third switch；34- elliptical piece；41- chamber lid；42- diaphragm assembly；The first magnet of 43-；44- sealing block；45- second
Magnet；46- return spring；47- connection bolt；48- seals mandril；5- takes oilhole；61- pressure relief vent button；62- sealing block；63-
Compressed spring；71- negative pressure cavity；72- counter balance pocket；8- balance hole.
It should be noted that these attached drawings and verbal description are not intended to limit the design of the utility model in any way
Range, but illustrate the concept of the utility model for those skilled in the art by referring to specific embodiments.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
The technical solution in embodiment is clearly and completely described in attached drawing in type embodiment, and following embodiment is for illustrating this
Utility model, but be not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for describing the utility model and simplifying description, rather than the device or element of indication or suggestion meaning must have specific side
Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.
For the ordinary skill in the art, can be understood with concrete condition above-mentioned term in the present invention specifically contain
Justice.
Embodiment one
As shown in Figures 1 to 5, a kind of fuel changing-over device for dual-fuel carburetor described in the present embodiment, including take
Pressure pipeline 2, Fuel switching switch 3 take 5 plugging module of oilhole, wherein taking 5 plugging module of oilhole includes chamber lid 41, diaphragm assembly
42, bolt 47, the first magnet 43, the second magnet 45, return spring 46, sealing mandril 48, sealing block 44, chamber lid 41 and change are connected
Oily device is connected and fixed connection and forms cavity, and diaphragm assembly 42 connect with carburetor and cavity is separated into negative pressure cavity 71, counter balance pocket
72, chamber lid 41 is equipped with the balance hole 8 for being connected in the external world with counter balance pocket 72, and connection bolt 47 is connect with carburetor, connects bolt 47
Equipped with mesoporous, 43 one end of the first magnet is connect with diaphragm assembly 42, and the other end is located at sliding in mesoporous, during the second magnet 45 is located at
In hole and can slide, seal 48 one end of mandril and connect with the second magnet 45, the other end takes oilhole 5 to match to merge and can block with carburetor
Oilhole 5 is taken, return spring 46 is set on sealing mandril 48, and the first magnet 43 end adjacent to each other with the second magnet 45 is mutual
Reprimand.Sealing block 44 is in concave, and sealing block 44 is mounted in mesoporous and between the first magnet 43, the second magnet 45, the first magnetic
The one end of iron 43 far from diaphragm assembly 42 and the groove of sealing block 44 are slidably connected.
The connection of the mixing chamber 1 of 2 one end of pressure pipeline and carburetor, the other end and the negative pressure cavity 71 for taking 5 plugging module of oilhole
Connection, the seal modules that pressure pipeline 2 is equipped with pressure relief vent 21, blocks pressure relief vent 21, seal modules include being located at pressure pipeline 2
Pressure relief vent button 61, the sealing block 62, compressed spring 63 of inside, pressure relief vent button 61 are connect with sealing block 62, compressed spring 63
It is set in fixed link, compressed spring 63 is connect with sealing block 62, pressure relief vent button 61 can be blocked release under the effect of elasticity
Hole 21.
Fuel switching switch 3 includes first switch 31, second switch 32, third switch 33, second switch 32 and carburetor
The connection of combustion gas inlet pipe, third switch 33 can drive seal modules opening/closing, first switch 31, second switch 32, third switch 33
Word order, first switch 31 engage connection with second switch 32, and second switch 32 engages connection with third switch 33, and first opens
It closes 31 to connect with the gasoline inlet pipe of carburetor, second switch 32 is connect with the combustion gas inlet pipe of carburetor, and third switch 33 is connected on
On pressure pipeline 2, the circulation of pressure pipeline 2 is controlled, third switch 33 is equipped with elliptical piece 34, elliptical piece 34 and pressure relief vent button 61
Cooperation can press pressure relief vent button 61 so that pressure relief vent 21 is not closed, and wherein the setting of pressure relief vent 21 in third switch 33 and is born
It presses between chamber 71.That is the conversion of the control of first switch 31 fuel, second switch 32 mainly control the switch of gas fuel, third switch
33 control the switch of 2 releases of pressure pipeline, oil fuel.
By controlling the rotation of first switch 31, first switch 31 drives second switch 32 to rotate, and ON/OFF gas fuel supplies
It gives, drives third switch 33 to rotate while second switch 32 rotates, the elliptical piece 34 of third switch 33 can open pressure relief vent 21,
Make pressure pipeline 2 and atmosphere with pressing, negative pressure cavity 71 and counter balance pocket 72 take the logical oil of oilhole 5 with pressing.
Specifically, control first switch 31 rotates, and is able to achieve following three kinds of states:
First state (uses gas), and first switch 31 is closed, and second switch 32 is opened, and third switch 33 is opened and do not driven close
Module is sealed, the closing of 5 plugging module of oilhole is taken to take oilhole 5.First switch 31 is closed at this time, and second switch 32 is opened, and gives carburetor
Gas supply is opened by gear-linked third switch 33, i.e., elliptical piece 34 does not press pressure relief vent button 61, and pressure relief vent 21 is relaxed hole
Button 61 blocks (compressed spring 63 withstands sealing block 62 using elastic force and seals up pressure relief vent 21 in pressure pipeline 2), thus making
The negative pressure of oily device mixing chamber 1 is conducted by pressure pipeline 2 to negative pressure cavity 71, because of the presence of balance hole 8,71 pressure of negative pressure cavity
Small, 72 pressure of counter balance pocket is big, makes the inside and outside generation pressure difference of diaphragm assembly 42, pushes diaphragm assembly 42 and the using atmospheric pressure
One magnet 43 moves upwards, and using homopolar-repulsion principle, the first magnet 43 continues to press on 48 grams of mandril of the second magnet 45 and sealing
The elastic force for taking return spring 46 up moves, and so that the plug at end part for sealing mandril 48 is taken 5 channel of oilhole eventually, reaches sealing and take oilhole
5 and cut off the effect of oil circuit.It is driven at this point, carburetor is burnt with gas.
Second state (with oil), first switch 31 is opened, and second switch 32 is closed, and third switch 33 is closed and driving sealing
Module opens pressure relief vent 21, takes 5 plugging module of oilhole not close and takes oilhole 5.First switch 31 is rotated by 90 ° counterclockwise, first
Switch 31 is opened, and second switch 32 is closed, and by gear-linked, third switch 33 is closed, i.e., elliptical piece 34 presses pressure relief vent and presses
Button 61, the pressure relief vent 21 of pressure pipeline 2 is opened, and (elliptical piece 34 pushes down pressure relief vent button 61, and sealing block 62 is made to overcome spring
Elastic force is detached from 2 inner wall of pressure pipeline, makes to communicate in pipe with atmosphere), to cut off the negative pressure conduction in carburetor mixing chamber 1, together
When release negative pressure cavity 71 and third switch 33 between negative pressure in part pressure pipeline 2,72 equipressure of negative pressure cavity 71 and counter balance pocket makes
No pressure is poor inside and outside diaphragm assembly 42, to using diaphragm assembly 42, the first magnet 43, the second magnet 45, seal mandril 48
The effect of the elastic force of self gravity and return spring 46 makes to fall back to original position with upper-part, and the thick stick disengaging of sealing top takes oil
It is unimpeded to reach recovery oil circuit for hole 5, at this point, carburetor is driven with oil firing, realizes the function of fuel conversion.
The third state (no fuel), first switch 31 are closed, and second switch 32 is closed, and third switch 33 is opened and do not driven
Seal modules take the closing of 5 plugging module of oilhole to take oilhole 5.When first switch 31 is opened, second switch 32 is closed, and is used at this time
Oil, then first switch 31 is rotated by 90 ° counterclockwise, oil circuit is closed again, but the gear on the rotation position is anodontia, cannot be stung
Crossed belt moves second switch 32 and third switch 33, thus oil in the gear, gas, pressure are in closed position, this can be set
Position is engine misses switch, and oil, gas are in closed position, does not have fuel leakage after flame-out, improves engine
Safety.
It should be noted that the above first switch 31, second switch 32, the rotational angle of third switch 33 and direction,
For a certain embodiment, not as restriction, it is only necessary to meet the opening/closing closings of lower three switches of above-mentioned three kinds of states.
In addition, the cooperation of the utility model pressure relief vent 21 and seal modules can play pressure stabilization function, by selecting pressure pipe
The suitable spring of elastic force after making return spring 46, can play the pressure stabilization function of pressure pipeline 2 in 2 pressure relief vent 21 of road；It reduces
The working strength of diaphragm assembly 42, prolongs its service life.Because engine is negative from idling operation to standard-sized sheet operating condition mixing chamber 1
Pressure varies widely, and when negative pressure is greater than spring pressure in pressure pipeline 2, sealing block 62 is opened by suction, in pipeline and big gas phase
It is logical, play the role of reducing negative pressure；When negative pressure is less than spring pressure in pressure pipeline 2, sealing block 62 is by spring force top
Continue to play sealing function on to 2 inner wall of pressure pipeline, 2 negative pressure of pressure pipeline is made to start to enhance again.Work in cycles, reaches
To the effect of pressure stabilizing.
The utility model setting Fuel switching switch, take oilhole plugging module, using Fuel switching switch with negative pressure cavity, unload
A variety of cooperations in hole are pressed, realize the supply to carburetor Oil/gas Fuels, are switched fast different fuel, control fuel supply avoids
Fuel losses improve engine health, while can guarantee the stability of carburetor work, avoid pressure pipeline pressure not
Surely, excessively strain diaphragm assembly, improves its service life, reduces cost, economizes on resources.
The above is only the preferred embodiment of the utility model, not makees in any form to the utility model
Limitation, although the utility model has been disclosed with preferred embodiment as above, is not intended to limit the utility model, any to be familiar with
The technical staff of this patent is not departing within the scope of technical solutions of the utility model, when the technology contents work using above-mentioned prompt
A little equivalent embodiment changed or be modified to equivalent variations out, but all contents without departing from technical solutions of the utility model,
Any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention, still belong to
In the range of the utility model.
Claims (7)
1. a kind of fuel changing-over device for dual-fuel carburetor, which is characterized in that opened including pressure pipeline, Fuel switching
Close, take oilhole plugging module, the mixing chamber of pressure pipeline one end and carburetor connects, the other end with take the negative of oilhole plugging module
Press chamber connection, the seal modules that the pressure pipeline is equipped with pressure relief vent, blocks pressure relief vent, Fuel switching switch includes the
One switch, second switch, third switch, first switch drive second switch, third switch, the gasoline of first switch and carburetor
The combustion gas inlet pipe of inlet pipe connection, second switch and carburetor connects, and third switch is connected on pressure pipe road, controls pressure pipeline
Circulation, and seal modules can be driven to open pressure relief vent, the pressure relief vent setting is described between third switch and negative pressure cavity
Fuel switching switch is at least able to achieve two states:
First state, first switch are closed, and second switch is opened, and third switch is opened and do not drive seal modules, and oilhole is taken to seal
Stifled module closing takes oilhole；
Second state, first switch are opened, and second switch is closed, and third switch is closed and driving seal modules open pressure relief vent,
It takes oilhole plugging module not close and takes oilhole.
2. a kind of fuel changing-over device for dual-fuel carburetor according to claim 1, which is characterized in that described to take
Oilhole plugging module includes chamber lid, diaphragm assembly, connection bolt, the first magnet, the second magnet, return spring, sealing mandril, institute
It states chamber lid and carburetor is connected and fixed connection and forms cavity, the diaphragm assembly connect with carburetor and cavity is separated into negative pressure
Chamber, counter balance pocket, chamber lid are equipped with the balance hole for being connected in the external world with counter balance pocket, and the connection bolt is connect with carburetor, connect spiral shell
Bolt is equipped with mesoporous, and first magnet one end is connect with diaphragm assembly, and the other end is located at sliding, second magnet position in mesoporous
In that in mesoporous and can slide, described sealing mandril one end is connect with the second magnet, and the other end takes oilhole to match to merge energy with carburetor
Closure takes oilhole, and the return spring is set on sealing mandril, first magnet and the second magnet end adjacent to each other
Mutual exclusion.
3. a kind of fuel changing-over device for dual-fuel carburetor according to claim 2, which is characterized in that described to take
Oilhole plugging module includes sealing block, and sealing block is in concave, and sealing block is mounted in mesoporous and is located at the first magnet, the second magnet
Between, the groove of the first magnet one end and sealing block far from diaphragm assembly is slidably connected.
4. a kind of fuel changing-over device for dual-fuel carburetor according to claim 1, which is characterized in that described close
Envelope module includes pressure relief vent button, the sealing block, compressed spring being located inside pressure pipeline, and pressure relief vent button and sealing block connect
It connects, compressed spring is set in fixed link, and the compressed spring is connect with sealing block, under the effect of elasticity can be by pressure relief vent button
Block pressure relief vent.
5. a kind of fuel changing-over device for dual-fuel carburetor according to claim 4, which is characterized in that described
One switch engages drive connection with second switch, third switch, and third switch is equipped with elliptical piece, and the elliptical piece is pressed with pressure relief vent
Button cooperation, can be by pressure relief vent button press so that pressure relief vent is not closed.
6. a kind of fuel changing-over device for dual-fuel carburetor according to claim 4, which is characterized in that described
One switch, second switch, third switch word order, and first switch engages connection with second switch, and second switch is opened with third
Close engagement connection, third switch is equipped with elliptical piece, the elliptical piece and pressure relief vent snap fit, can by pressure relief vent button press with
Close pressure relief vent not.
7. -6 any a kind of fuel changing-over device for dual-fuel carburetor according to claim 1, which is characterized in that
The first switch is also able to achieve the third state: first switch is closed, and second switch is closed, and third switch is opened and do not driven close
Module is sealed, the closing of oilhole plugging module is taken to take oilhole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821327695.4U CN208803911U (en) | 2018-08-17 | 2018-08-17 | A kind of fuel changing-over device for dual-fuel carburetor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821327695.4U CN208803911U (en) | 2018-08-17 | 2018-08-17 | A kind of fuel changing-over device for dual-fuel carburetor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208803911U true CN208803911U (en) | 2019-04-30 |
Family
ID=66235278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821327695.4U Expired - Fee Related CN208803911U (en) | 2018-08-17 | 2018-08-17 | A kind of fuel changing-over device for dual-fuel carburetor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208803911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869062A (en) * | 2018-08-17 | 2018-11-23 | 福鼎市卡夫卡机械部件有限公司 | A kind of fuel changing-over device for dual-fuel carburetor |
-
2018
- 2018-08-17 CN CN201821327695.4U patent/CN208803911U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869062A (en) * | 2018-08-17 | 2018-11-23 | 福鼎市卡夫卡机械部件有限公司 | A kind of fuel changing-over device for dual-fuel carburetor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190430 Termination date: 20190817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |