CN108869062A - 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
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- CN108869062A CN108869062A CN201810938615.7A CN201810938615A CN108869062A CN 108869062 A CN108869062 A CN 108869062A CN 201810938615 A CN201810938615 A CN 201810938615A CN 108869062 A CN108869062 A CN 108869062A
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- Prior art keywords
- switch
- fuel
- carburetor
- relief vent
- pressure relief
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- 239000000446 fuel Substances 0.000 title claims abstract description 70
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 40
- 230000000694 effects Effects 0.000 claims description 6
- 239000000567 combustion gas Substances 0.000 claims description 4
- 230000007717 exclusion Effects 0.000 claims description 2
- 230000036541 health Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 241001014327 Anodontia Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 206010002583 anodontia Diseases 0.000 description 1
- 230000005212 anodontia Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0602—Control of components of the fuel supply system
- F02D19/0613—Switch-over from one fuel to another
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
- F02D19/0647—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0673—Valves; Pressure or flow regulators; Mixers
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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
Abstract
The invention 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 present invention is arranged Fuel switching and 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 invention belongs to carburetor fields, specifically, being related to a kind of fuel changing-over device for dual-fuel carburetor.
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 present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide a kind of for dual-fuel carburetor
Fuel changing-over device, in order to solve the above technical problems, the present invention is using the basic conception of technical solution：
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 present invention has the advantages that compared with prior art.
The present invention is arranged Fuel switching and switchs, takes oilhole plugging module, utilizes Fuel switching switch and negative pressure cavity, pressure relief vent
A variety of cooperations, realize supply to carburetor Oil/gas Fuels, be switched fast different fuel, control fuel supply avoids fuel
Leakage improves engine health, while can guarantee the stability of carburetor work, avoids pressure pipeline pressure instability, mistake
Degree strain diaphragm assembly, improves its service life, reduces cost, economize on resources.
Structure of the invention is reasonable, practical, has biggish application value.
A specific embodiment of the invention 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, for providing further understanding of the invention, of the invention is schematic
Examples and descriptions thereof are used to explain the present invention, but does not constitute an undue limitation on the present invention.Obviously, the accompanying drawings in the following description
Only some embodiments to those skilled in the art without creative efforts, can be with
Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings：
Fig. 1 is one embodiment of the invention structural schematic diagram；
Fig. 2 is that one embodiment of the invention Fuel switching switchs first state schematic diagram；
Seal modules operation schematic diagram when Fig. 3 is one embodiment of the invention first state；
Fig. 4 is the second status diagram of one embodiment of the invention Fuel switching switch；
Seal modules operation schematic diagram when Fig. 5 is the second state of one embodiment of the 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 the design model limiting the invention in any way
It encloses, but illustrates idea of the invention by referring to specific embodiments for those skilled in the art.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in embodiment is clearly and completely described, the following examples are intended to illustrate the invention, but
It is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
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 pressure relief vent 21 of the present invention and seal modules can play pressure stabilization function, by selecting pressure pipeline 2 to unload
The suitable spring of elastic force after making return spring 46, can play the pressure stabilization function of pressure pipeline 2 in pressure hole 21；It is total to reduce diaphragm
At 42 working strength, prolong its service life.Because engine has very from idling operation to the negative pressure of standard-sized sheet operating condition mixing chamber 1
Big variation, when negative pressure is greater than spring pressure in pressure pipeline 2, sealing block 62 is opened by suction, is communicated, is played with atmosphere in pipeline
Reduce the effect of negative pressure；When negative pressure is less than spring pressure in pressure pipeline 2, sealing block 62 is by spring force top to pressure pipe
Continue to play sealing function on 2 inner wall of road, 2 negative pressure of pressure pipeline is made to start to enhance again.Work in cycles, reaches pressure stabilizing
Effect.
The present invention is arranged Fuel switching and switchs, takes oilhole plugging module, utilizes Fuel switching switch and negative pressure cavity, pressure relief vent
A variety of cooperations, realize supply to carburetor Oil/gas Fuels, be switched fast different fuel, control fuel supply avoids fuel
Leakage improves engine health, while can guarantee the stability of carburetor work, avoids pressure pipeline pressure instability, mistake
Degree strain diaphragm assembly, improves its service life, reduces cost, economize on resources.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
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 |
|---|---|---|---|
| CN201810938615.7A CN108869062A (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 |
|---|---|---|---|
| CN201810938615.7A CN108869062A (en) | 2018-08-17 | 2018-08-17 | A kind of fuel changing-over device for dual-fuel carburetor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869062A true CN108869062A (en) | 2018-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810938615.7A Pending CN108869062A (en) | 2018-08-17 | 2018-08-17 | A kind of fuel changing-over device for dual-fuel carburetor |
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| CN (1) | CN108869062A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953091A (en) * | 2019-11-01 | 2020-04-03 | 陈其安 | Oil-gas dual-purpose carburetor |
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| CN206600212U (en) * | 2017-04-12 | 2017-10-31 | 夏品清 | Integration-in-one oil-gas two-way carburetor |
| CN108331680A (en) * | 2018-04-20 | 2018-07-27 | 夏品清 | The oil-gas two-way carburetor and its bottom cup that double fuel automatically switches |
| CN208803911U (en) * | 2018-08-17 | 2019-04-30 | 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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| GB2062764A (en) * | 1979-11-06 | 1981-05-28 | Saab Scania Ab | An Arrangement for the Alternative Carburetted Supply of Liquid or Gaseous Fuel to Internal Combustion Engines |
| JPS56107939A (en) * | 1980-01-31 | 1981-08-27 | Mazda Motor Corp | Carburetor in engine |
| US4594990A (en) * | 1985-06-03 | 1986-06-17 | Propane Carburetion Systems, Inc. | Carburetor for gaseous fuel |
| US4936267A (en) * | 1987-11-06 | 1990-06-26 | Andreas Stihl | Carburetor for an internal combustion engine |
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| CN206600212U (en) * | 2017-04-12 | 2017-10-31 | 夏品清 | Integration-in-one oil-gas two-way carburetor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953091A (en) * | 2019-11-01 | 2020-04-03 | 陈其安 | Oil-gas dual-purpose carburetor |
| US11473531B2 (en) * | 2019-11-01 | 2022-10-18 | Qian Chen | Carburetor |
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