CN214145682U - Dual-fuel oil-gas automatic switching transmission device - Google Patents
Dual-fuel oil-gas automatic switching transmission device Download PDFInfo
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- CN214145682U CN214145682U CN202120267830.6U CN202120267830U CN214145682U CN 214145682 U CN214145682 U CN 214145682U CN 202120267830 U CN202120267830 U CN 202120267830U CN 214145682 U CN214145682 U CN 214145682U
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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
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- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model discloses a dual-fuel oil-gas automatic switching transmission device, which comprises a carburetor body, wherein a fuel cavity is arranged in the carburetor body, the bottom of the fuel cavity is provided with a fuel inlet, the carburetor body is provided with a gas inlet, the bottom of the carburetor body is provided with an air chamber, and the gas inlet is communicated with the air chamber; a fuel gas diaphragm, a fuel oil diaphragm and a switching mechanism are sequentially arranged in the gas chamber, the fuel gas diaphragm and the fuel oil diaphragm are fixed on the inner wall of the gas chamber, one end of the switching mechanism is movably connected with the fuel oil diaphragm, and the other end of the switching mechanism is movably connected with the fuel oil inlet; with fuel membrane and switching mechanism components of a whole that can function independently setting, even when the fuel membrane warp the circumstances such as because of reasons such as soaking for a long time or resistant time appearance, the sealed needle still can keep moving in the horizontal direction, phenomenon such as sealed needle operation is not smooth can not appear, simple structure, convenient operation has stronger practicality.
Description
Technical Field
The utility model relates to a carburetor technical field especially relates to a dual fuel oil gas automatic switch-over transmission.
Background
The carburetor generally employs a dual fuel engine, which is an engine capable of using gasoline fuel and liquefied petroleum gas fuel or natural gas as fuel and can be switched between a plurality of fuels.
Because the fuel membrane used in the market is a rubber membrane, the sealing needle is connected with the fuel membrane into a whole; the fuel membrane can deform after being soaked in the fuel for a long time, and even under the condition that the fuel is not soaked, the fuel membrane can deform due to weather resistance along with the time, and the deformed fuel membrane can cause the sealing needle to operate unsmoothly, so that when the engine is switched between oil and gas fuels, the fuel inlet is not tightly sealed, the fuel leakage occurs, two fuels are combusted simultaneously when the gas is supplied, and the abnormal operation of the engine is caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a dual-fuel oil gas automatic switch-over transmission to solve among the prior art fuel inlet seal and not strictly lead to multiple fuel to burn simultaneously, and then cause the unusual problem of engine operation.
In order to solve the problems, the utility model provides a dual-fuel oil-gas automatic switching transmission device, which comprises a carburetor body, wherein a fuel cavity is arranged in the carburetor body, a fuel inlet is arranged at the bottom of the fuel cavity, a fuel gas inlet is arranged on the carburetor body, an air chamber is also arranged at the bottom of the carburetor body, and the fuel gas inlet is communicated with the air chamber; a gas membrane, a fuel membrane and a switching mechanism are sequentially arranged in the gas chamber, the gas membrane and the fuel membrane are fixed on the inner wall of the gas chamber, one end of the switching mechanism is movably connected with the fuel membrane, and the other end of the switching mechanism is used for plugging a fuel inlet; when fuel is supplied, the fuel pressure enables the fuel membrane to deform to push the fuel membrane, the fuel membrane pushes the switching mechanism to horizontally move to block the fuel inlet, and when fuel is supplied, the fuel pressure enables the switching mechanism to reset to open the fuel inlet.
Further, the gas diaphragm and the fuel diaphragm divide the air chamber into a first chamber, a second chamber and a third chamber which are not communicated with each other, the first chamber is communicated with the fuel inlet, and the third chamber is communicated with the gas inlet.
Furthermore, a guide post is arranged in the first chamber, the guide post is fixedly connected with the carburetor body, and the switching mechanism is arranged in the guide post in a sliding manner.
Further, the switching mechanism comprises a sealing needle and an elastic piece, the sealing needle is arranged on the guide post in a penetrating mode, and the penetrating end of the sealing needle is movably connected with the fuel inlet; the elastic piece is sleeved outside the sealing needle, one end of the elastic piece is fixed to the guide column, and the other end of the elastic piece is abutted to or fixed to the corresponding position of the sealing needle.
Further, a rivet assembly penetrates through the fuel membrane, the rivet assembly is riveted with the fuel membrane, the rivet assembly is movably connected with the switching mechanism, and the fuel membrane can drive the rivet assembly to be close to or far away from the switching mechanism.
Furthermore, a push rod is fixedly arranged on one side, close to the fuel membrane, of the fuel membrane, one end, far away from the fuel membrane, of the push rod is movably connected with the rivet assembly, and the fuel membrane can drive the push rod to be close to or far away from the rivet assembly.
The utility model has the advantages that:
(1) the fuel gas sealing device is characterized in that a fuel gas diaphragm, a fuel oil diaphragm and a switching mechanism are arranged, a mandril is arranged on the fuel gas diaphragm, and a rivet component is arranged on the fuel oil diaphragm; when fuel is supplied, only the fuel gas is needed to be closed, the sealing needle is reset under the action of the elastic piece, and then the fuel supply channel is opened, the fuel supply is recovered, and the automatic switching of the dual fuels in the using process is realized;
(2) the fuel membrane and the switching mechanism are arranged in a split mode, the rivet assembly movably connected with the sealing needle is riveted on the fuel membrane, the sealing needle is pushed to move through the rivet assembly to block a fuel inlet, even if the fuel membrane deforms due to long-term soaking or weather resistance and the like, the sealing needle can still move in the horizontal direction, and the phenomena that the sealing needle is unsmooth in operation and the like cannot occur;
(3) the switching mechanism is horizontally arranged relative to the carburetor body, so that the sealing needle moves along the horizontal direction and blocks the fuel inlet from the side surface, the influence of the gravity of the sealing needle on the sealing effect can be effectively reduced, the blocking effect of the sealing needle is increased, and the abnormal operation of an engine caused by the oil-gas mixing function is avoided.
Drawings
Fig. 1 is the structure schematic diagram of the utility model relates to a dual-fuel oil gas automatic switch-over transmission.
Fig. 2 is a cross-sectional view a-a of fig. 1.
Fig. 3 is an enlarged structural view at B in fig. 2.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-3, the dual-fuel oil-gas automatic switching transmission device of the present invention includes a carburetor body 1, wherein a fuel chamber 2 is disposed in the carburetor body 1, and fuel is stored in the fuel chamber 2; the bottom of the fuel cavity 2 is provided with a fuel inlet 21, and the fuel inlet 21 is used for accessing fuel when the fuel is supplied with power; the carburetor body 1 is provided with a gas inlet 11, the bottom of the carburetor body 1 is also provided with a gas chamber 3, the gas inlet 11 is communicated with the gas chamber 3, and the gas inlet 11 is used for receiving gas during gas supply. A gas membrane 4, a fuel membrane 5 and a switching mechanism 6 are sequentially arranged in the gas chamber 3, the gas membrane 4 and the fuel membrane 5 are fixed on the inner wall of the gas chamber 3, the gas membrane 4 and the fuel membrane 5 divide the gas chamber 3 into a first chamber 31, a second chamber 32 and a third chamber 33 which are not communicated with each other, the first chamber 31 is communicated with the fuel inlet 21, the switching mechanism 6 is horizontally arranged in the first chamber 31, and the switching mechanism moves along the horizontal direction to plug or open the fuel inlet 21; the third chamber 33 is communicated with the gas inlet 11, and is used for introducing gas into the third chamber 33. One end of the switching mechanism 6 is movably connected with the fuel membrane 5, and the other end of the switching mechanism is movably connected with the fuel inlet 21 and used for plugging the fuel inlet 21; when gas is supplied, the gas enters the third chamber 33 through the gas inlet 11, the pressure of the third chamber 33 is increased, the gas diaphragm 4 is deformed and extrudes the second chamber 32, the second chamber extrudes the fuel oil diaphragm 5, and the fuel oil diaphragm 5 is deformed by being pressed to push the switching mechanism 6 to move horizontally and forwards to plug the fuel oil inlet 21, so that the fuel oil supply is cut off and only the gas is used for supplying energy; when fuel is supplied, the fuel is closed, the fuel membrane 4 and the fuel membrane 5 retract, the switching mechanism 6 resets, the fuel inlet 21 is opened again, the fuel energy supply is recovered, and the automatic switching of the dual fuels in the using process is realized.
The guide post 7 is arranged in the first chamber 31, the guide post 7 is fixedly connected with the carburetor body 1, and the switching mechanism 6 is slidably arranged in the guide post 7, so that the switching mechanism 6 can slide along the guide post 7 to be close to or far away from the fuel inlet 21. The switching mechanism 6 comprises a sealing needle 61 and an elastic member 62, the sealing needle 61 is arranged on the guide column 7 in a penetrating way, and the guide column 7 is used for guiding the sealing needle 61 to move; the penetrating end of the sealing needle 61 is movably connected with the fuel inlet 21 and is used for plugging or opening the fuel inlet 21; the elastic part 62 is sleeved on the outer side of the sealing needle 61, one end of the elastic part 62 is fixed to the guide post 7, and the other end of the elastic part 62 is abutted to or fixed to the corresponding position of the sealing needle 61 and used for resetting the sealing needle 61.
A rivet assembly 7 penetrates through the fuel membrane 5, the rivet assembly 7 is riveted with the fuel membrane 5, the rivet assembly 7 is movably connected with the switching mechanism 6, so that the fuel membrane 5 can drive the rivet assembly 7 to be close to or far away from the switching mechanism 6, and the rivet assembly 7 can drive the sealing needle 61 to be pushed forwards under the driving of the fuel membrane 5; since both the rivet assembly 7 and the sealing needle 61 are made of metal, the friction between the rivet assembly 7 and the sealing needle 61 can be reduced to optimize the relative movement between the two; meanwhile, the sealing needle 61 is not directly connected with the fuel membrane 5, so that the sealing needle 61 is prevented from not smoothly running due to the deformation of the fuel membrane 5, and the sealing performance of the sealing needle 61 is improved. One side of the fuel gas membrane 4 close to the fuel oil membrane 5 is fixedly provided with a mandril 8, one end of the mandril 8 far away from the fuel gas membrane 4 is movably connected with the rivet component 7, and the fuel gas membrane 4 can drive the mandril 8 to be close to or far away from the rivet component 7 so as to push the rivet component 7, so that the rivet component 7 moves forwards.
The utility model discloses a theory of operation:
when gas is used for supplying, the gas enters the third chamber 33 through the gas inlet 11, the pressure in the third chamber 33 is increased, the pressure in the third chamber 33 is greater than the pressure in the second chamber 32, the gas diaphragm 4 deforms under the action of air pressure, the ejector rod 8 is further driven to move towards the fuel diaphragm 5 and contact with the rivet component 7 on the fuel diaphragm 5, at the moment, the gas is continuously introduced into the third chamber 33, the pressure in the third chamber 33 is continuously increased, the ejector rod 8 continuously moves forwards and pushes the rivet component 7, and the rivet component 7 quickly pushes the sealing needle 61 forwards to seal the fuel inlet 21 to cut off a fuel supply channel. When fuel oil supply needs to be switched, the fuel gas is closed, the fuel gas is stopped from being introduced into the third chamber 33, so that the air pressure in the third chamber 33 disappears, the fuel gas membrane 4 and the fuel oil membrane 5 retract to drive the ejector rod 8 and the rivet assembly 7 to reset, meanwhile, the sealing needle 61 resets under the action of the elastic piece 62, the fuel oil inlet 21 is opened again, and the fuel oil supply is recovered, so that the automatic switching of oil gas fuel is realized.
The utility model discloses set up fuel membrane 5 and the 6 components of a whole that can function independently of switching mechanism, even when fuel membrane 5 appears deforming because of reasons such as soaking for a long time or resistant time, sealed needle 61 still can keep removing at the horizontal direction, sealed needle 61 operation phenomenons such as not smooth can not appear, and set up switching mechanism 6 level, make sealed needle 61 shutoff fuel entry 21 from the side, can reduce the influence of the gravity of sealed needle 61 to sealed effect, can also avoid sealed needle 61 because of the reduction of the sealing performance that the shake caused. In addition, the gas is connected into the third chamber 33 to serve as the power for the movement of the gas diaphragm 4, the fuel diaphragm 5 and the switching mechanism 6, so that the oil-gas fuel can be quickly switched, the structure is simple, and the practicability is high.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The above is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures made by the contents of the specification and the drawings are directly or indirectly applied to other related technical fields, all the same principle is within the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a dual fuel oil gas automatic switch transmission, includes the carburetor body, its characterized in that: a fuel cavity is arranged in the carburetor body, a fuel inlet is formed in the bottom of the fuel cavity, a fuel gas inlet is formed in the carburetor body, a gas chamber is further formed in the bottom of the carburetor body, and the fuel gas inlet is communicated with the gas chamber; the gas chamber is internally and sequentially provided with a gas membrane, a fuel membrane and a switching mechanism, the gas membrane and the fuel membrane are fixed on the inner wall of the gas chamber, one end of the switching mechanism is movably connected with the fuel membrane, and the other end of the switching mechanism is used for plugging a fuel inlet; when gas is supplied, the gas pressure enables the gas diaphragm to deform to push the fuel oil diaphragm, and the fuel oil diaphragm pushes the switching mechanism to horizontally move to plug the fuel oil inlet; when fuel is supplied, the fuel pressure resets the switching mechanism to open the fuel inlet.
2. The dual fuel oil gas automatic switching transmission device of claim 1, characterized in that: the gas chamber is divided into a first chamber, a second chamber and a third chamber which are not communicated with each other by the gas membrane and the fuel membrane, the first chamber is communicated with the fuel inlet, and the third chamber is communicated with the gas inlet.
3. The dual fuel oil gas automatic switching transmission device according to claim 2, characterized in that: a guide post is arranged in the first chamber, the guide post is fixedly connected with the carburetor body, and the switching mechanism is arranged in the guide post in a sliding mode.
4. The dual fuel oil gas automatic switching transmission device according to claim 3, characterized in that: the switching mechanism comprises a sealing needle and an elastic piece, the sealing needle penetrates through the guide post, and the penetrating end of the sealing needle is movably connected with the fuel inlet; the elastic piece is sleeved outside the sealing needle, one end of the elastic piece is fixed to the guide column, and the other end of the elastic piece is abutted to or fixed to the corresponding position of the sealing needle.
5. The dual fuel oil gas automatic switching transmission device of claim 1, characterized in that: the fuel membrane is provided with a rivet assembly in a penetrating mode, the rivet assembly is riveted with the fuel membrane and is movably connected with the switching mechanism, and the fuel membrane can drive the rivet assembly to be close to or far away from the switching mechanism.
6. The dual fuel oil gas automatic switching transmission device according to claim 5, characterized in that: and one side of the fuel gas membrane, which is close to the fuel oil membrane, is fixedly provided with a push rod, one end of the push rod, which is far away from the fuel gas membrane, is movably connected with the rivet component, and the fuel gas membrane can drive the push rod to be close to or far away from the rivet component.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120267830.6U CN214145682U (en) | 2021-01-29 | 2021-01-29 | Dual-fuel oil-gas automatic switching transmission device |
| PCT/CN2021/081448 WO2022160428A1 (en) | 2021-01-29 | 2021-03-18 | Dual-fuel oil-gas automatic switching transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120267830.6U CN214145682U (en) | 2021-01-29 | 2021-01-29 | Dual-fuel oil-gas automatic switching transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214145682U true CN214145682U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120267830.6U Active CN214145682U (en) | 2021-01-29 | 2021-01-29 | Dual-fuel oil-gas automatic switching transmission device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN214145682U (en) |
| WO (1) | WO2022160428A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878475A (en) * | 1988-11-21 | 1989-11-07 | Ludwig Birsa | Fuel supply system for internal combustion engines |
| 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 |
| CN208474513U (en) * | 2018-04-20 | 2019-02-05 | 夏品清 | The needle-valve driving assembly of the adaptive switched carburetor of double fuel |
| CN109931186A (en) * | 2019-04-24 | 2019-06-25 | 严格 | A kind of double fuel mechanism for automatically switching |
-
2021
- 2021-01-29 CN CN202120267830.6U patent/CN214145682U/en active Active
- 2021-03-18 WO PCT/CN2021/081448 patent/WO2022160428A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2022160428A1 (en) | 2022-08-04 |
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