CN110017209B - Three-fuel engine - Google Patents
Three-fuel engine Download PDFInfo
- Publication number
- CN110017209B CN110017209B CN201910361080.6A CN201910361080A CN110017209B CN 110017209 B CN110017209 B CN 110017209B CN 201910361080 A CN201910361080 A CN 201910361080A CN 110017209 B CN110017209 B CN 110017209B
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- electromagnetic valve
- interface
- carburetor
- control module
- pipe fitting
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- 239000000446 fuel Substances 0.000 title claims abstract description 34
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000007789 gas Substances 0.000 claims abstract description 51
- 239000003345 natural gas Substances 0.000 claims abstract description 46
- 239000003502 gasoline Substances 0.000 claims abstract description 18
- 239000000295 fuel oil Substances 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 21
- 239000002737 fuel gas Substances 0.000 abstract description 6
- 239000003209 petroleum derivative Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000006837 decompression Effects 0.000 description 5
- 239000003915 liquefied petroleum gas Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B69/00—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types
- F02B69/02—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel
- F02B69/04—Internal-combustion engines convertible into other combustion-engine type, not provided for in F02B11/00; Internal-combustion engines of different types characterised by constructions facilitating use of same main engine-parts in different types for different fuel types, other than engines indifferent to fuel consumed, e.g. convertible from light to heavy fuel for gaseous and non-gaseous fuels
-
- 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
-
- 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]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M13/00—Arrangements of two or more separate carburettors; Carburettors using more than one fuel
- F02M13/06—Arrangements of two or more separate carburettors; Carburettors using more than one fuel the carburettors using different fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
- F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0218—Details on the gaseous 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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M7/00—Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
- F02M7/12—Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/1502—Digital data processing using one central computing unit
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention provides a three-fuel engine capable of flexibly selecting three fuels of petroleum gas, natural gas and gasoline, which comprises a first-stage pressure reducing valve, a second-stage pressure reducing valve, a first electromagnetic valve, a multi-way pipe fitting, a carburetor, a control module, a natural gas interface and a liquefied gas interface; the control module is electrically connected with the first electromagnetic valve and the second electromagnetic valve and responds to a user instruction to control the on-off of the first electromagnetic valve and the second electromagnetic valve. The beneficial effects of the invention are as follows: when the fuel is used, the air inlet pipe of the carburetor is closed and cut off, and the carburetor realizes fuel supply; when the fuel gas is used, the electromagnetic valve of the carburetor is powered off to stop fuel oil supply, and the air inlet pipe supplies air; when the user selects natural gas or liquefied gas, the natural gas and the liquefied gas are reserved from different outlets of the first electromagnetic valve, the flow control of the natural gas or the liquefied gas is realized by controlling the sizes of different outlet apertures of the electromagnetic valve, and the user can flexibly select among petroleum gas, natural gas and gasoline, so that the economical efficiency is improved.
Description
Technical Field
The invention relates to an engine, in particular to a three-fuel engine.
Background
Currently, general power engines on the market are mainly used for generating sets, water pumps, cleaning machines, marine power and the like. The fuels used by engines are currently gasoline, liquefied Petroleum Gas (LPG), natural Gas (NG). The engine has better economy when using liquefied petroleum gas and natural gas, but the portability and flexibility of the liquefied petroleum gas and the natural gas are poorer, and the engine is less convenient than gasoline. The gasoline and the gas of the general power engine on the market at present are not compatible, namely: if gasoline is used, the machine cannot burn fuel gas; if the fuel gas is burnt, the gasoline cannot be used, the user cannot flexibly select among petroleum gas, natural gas and gasoline, and the economy and flexibility cannot be compatible.
Disclosure of Invention
In order to solve the problems, the invention provides a three-fuel engine capable of flexibly selecting three fuels of petroleum gas, natural gas and gasoline, which comprises a first-stage pressure reducing valve, a second-stage pressure reducing valve, a first electromagnetic valve, a multi-way pipe fitting, a carburetor, a control module, a natural gas interface and a liquefied gas interface;
the first electromagnetic valve comprises a first electromagnetic valve first interface, a first electromagnetic valve second interface, a first electromagnetic valve third interface, a first electromagnetic valve first channel and a first electromagnetic valve second channel;
the first electromagnetic valve first channel is connected with the first electromagnetic valve first interface and the first electromagnetic valve second interface, and the first electromagnetic valve second channel is connected with the first electromagnetic valve first interface and the first electromagnetic valve third interface;
The third interface aperture of the first electromagnetic valve is smaller than the second interface aperture of the first electromagnetic valve;
an oil inlet pipe and an air inlet pipe are arranged on the carburetor, and a second electromagnetic valve for controlling the on-off of fuel oil is arranged on the carburetor;
The liquefied gas interface is connected with a first interface of the first electromagnetic valve sequentially through a first-stage pressure reducing valve and a second-stage pressure reducing valve;
The natural gas interface is connected with a first interface of a first electromagnetic valve through a second-stage pressure reducing valve;
the second interface of the first electromagnetic valve and the third interface of the first electromagnetic valve are respectively connected with the air inlet of the multi-way pipe fitting;
The air outlet of the multi-way pipe fitting is connected with the air inlet pipe of the carburetor;
The control module is electrically connected with the first electromagnetic valve and the second electromagnetic valve and responds to a user instruction to control the on-off of the first electromagnetic valve and the second electromagnetic valve.
Further, the method comprises the steps of,
The three-way pipe fitting comprises a first three-way pipe fitting first interface, a first three-way pipe fitting second interface and a first three-way pipe fitting third interface;
one end of the first-stage pressure reducing valve is connected with the liquefied gas interface, and the other end of the first-stage pressure reducing valve is connected with the first interface of the first tee pipe fitting;
The natural gas interface is connected with the second interface of the first tee pipe fitting;
One end of the second-stage pressure reducing valve is connected with the third interface of the first three-way pipe fitting, and the other end of the second-stage pressure reducing valve is connected with the first interface of the first electromagnetic valve.
Further, the method comprises the steps of,
The second three-way pipe fitting comprises a second three-way pipe fitting first interface, a second three-way pipe fitting second interface and a second three-way pipe fitting third interface;
the second interface of the first electromagnetic valve is connected with the first interface of the second three-way pipe fitting, and the third interface of the first electromagnetic valve is connected with the second interface of the second three-way pipe fitting;
the third interface of the second tee pipe fitting is connected with the air inlet of the multi-way pipe fitting.
Further, the method comprises the steps of,
The carburetor is provided with a plurality of groups of air inlets, and each group of air inlets is provided with a main air inlet pipe and a secondary air inlet pipe;
The multi-way pipe fitting is provided with air outlets which are in quantity corresponding to the air inlet pipes of the carburettors.
Further, the method comprises the steps of,
The control module responds to user control, and when a gasoline command selected by a user is received, the control module blocks a gas channel by controlling the first electromagnetic valve, and the control module stops the air supply of the air inlet pipe of the carburetor by controlling the second electromagnetic valve so as to supply oil to the oil inlet pipe of the carburetor;
The control module responds to user control, when a natural gas instruction is received, the control module controls the first electromagnetic valve to open the first channel of the first electromagnetic valve and close the second channel of the first electromagnetic valve, and controls the second electromagnetic valve to stop oil supply of the oil inlet pipe of the carburetor, so that the air supply of the air inlet pipe of the carburetor is realized;
The control module responds to user control, when a liquefied gas instruction is received, the control module controls the first electromagnetic valve to open the second channel of the first electromagnetic valve to close the first channel of the first electromagnetic valve, and controls the second electromagnetic valve to stop oil supply of the oil inlet pipe of the carburetor, so that the air supply of the air inlet pipe of the carburetor is realized.
Further, the method comprises the steps of,
The control module is connected with an engine ignition control circuit;
The control module responds to the user control, and when receiving a command of selecting gasoline or liquefied gas from a user, the control module sends out a command to the other engine to ignite at an angle of 25;
The control module responds to the user control, and when the natural gas command selected by the user is received, the control module sends out the command and the ignition angle of the other engine is 35.
The beneficial effects of the invention are as follows:
when the fuel is used, the air inlet pipe of the carburetor is closed and cut off, and the carburetor realizes fuel supply; when the fuel gas is used, the electromagnetic valve of the carburetor is powered off to stop fuel oil supply, and the air inlet pipe supplies air; when the user selects natural gas or liquefied gas, the natural gas and the liquefied gas are reserved from different outlets of the first electromagnetic valve, the flow control of the natural gas or the liquefied gas is realized by controlling the sizes of different outlet apertures of the electromagnetic valve, and the user can flexibly select among petroleum gas, natural gas and gasoline, so that the economical efficiency is improved.
Drawings
FIG. 1 is an exploded view of a multi-way fitting and carburetor connection according to one embodiment of the present invention.
FIG. 2 is an exploded view of the general assembly connection of an embodiment of the present invention.
FIG. 3 is a schematic diagram illustrating the assembly connection relationship according to an embodiment of the present invention
In the figure, 1 is a multi-way pipe air inlet, 2 is a multi-way pipe air outlet, 3 is a carburetor oil inlet, 4 is a carburetor air inlet, 5 is a gas fuel storage device, 6 is a primary pressure reducing valve, 7 is a first three-way pipe fitting, 8 is a secondary pressure reducing valve, 9 is a multi-way pipe fitting, 10 is a carburetor, 11 is a control panel, 12 is a first electromagnetic valve, 13 is a second three-way pipe fitting, and 14 is a second electromagnetic valve.
Detailed Description
The working principle of the invention is that when the user selects fuel, the air inlet pipe of the carburetor 10 is closed and cut off by the second electromagnetic valve 14, and the carburetor 10 realizes fuel supply. When the user selects to use the fuel gas, the second electromagnetic valve 14 is powered off to stop the fuel oil supply, and the air is supplied by the air inlet pipe. The carburetor 10 is provided with a second solenoid valve 14 valve for selectively supplying air and fuel. When the user selects natural gas or liquefied gas, the natural gas and the liquefied gas are discharged from different outlets of the first electromagnetic valve 12, and the flow control of the natural gas or the liquefied gas is realized by controlling the sizes of different outlet apertures of the first electromagnetic valve 12.
The invention is illustrated by the following specific examples.
Example 1
The three-fuel engine of the embodiment comprises a first-stage pressure reducing valve 6, a second-stage pressure reducing valve 8, a first electromagnetic valve 12, a multi-way pipe fitting 9, a carburetor 10, a control module, a natural gas interface and a liquefied gas interface;
The first electromagnetic valve 12 comprises a first electromagnetic valve 12 first interface, a first electromagnetic valve 12 second interface, a first electromagnetic valve 12 third interface, a first electromagnetic valve 12 first channel and a first electromagnetic valve 12 second channel;
The first channel of the first electromagnetic valve 12 is connected with the first interface of the first electromagnetic valve 12 and the second interface of the first electromagnetic valve 12, and the second channel of the first electromagnetic valve 12 is connected with the first interface of the first electromagnetic valve 12 and the third interface of the first electromagnetic valve 12;
The third interface aperture of the first solenoid valve 12 is smaller than the second interface aperture of the first solenoid valve 12;
in the embodiment, the first interface caliber of the first electromagnetic valve is larger than the second interface caliber of the first electromagnetic valve; the first interface caliber of the first electromagnetic valve is larger than the third interface caliber of the first electromagnetic valve.
The caliber of the first interface of the first electromagnetic valve is larger than that of the second interface and the third interface, so that gas can flow in the electromagnetic valve more smoothly.
By setting the two outlets of the first electromagnetic valve 12 to different pore sizes, the control module enables natural gas to be discharged from the outlet with large pore size and liquefied gas to be discharged from the outlet with small pore size according to the selection of a user, so that the flow rates of the natural gas and the liquefied gas are controlled and matched with the requirement of an engine.
The first solenoid valve 12 for natural gas exit in this embodiment has a second exit aperture size of 8 cm in diameter and a third aperture size for liquefied gas exit of 5 cm in diameter.
An oil inlet pipe and an air inlet pipe are arranged on the carburetor 10, and a second electromagnetic valve 14 for controlling fuel on-off is arranged on the carburetor 10;
In the dual-purpose dual-chamber carburetor 10 for oil and gas of the embodiment, when fuel is used, all air inlet pipes are closed and cut off, and the carburetor 10 realizes fuel supply; when the fuel gas is used, the electromagnetic valve of the carburetor 10 is powered off to stop fuel oil supply, and the air is supplied by the air inlet pipe.
The liquefied gas interface is connected with a first interface of a first electromagnetic valve 12 through a first-stage pressure reducing valve 6 and a second-stage pressure reducing valve 8 in sequence;
the natural gas interface is connected with a first interface of a first electromagnetic valve 12 through a second-stage pressure reducing valve 8;
the liquefied gas and the natural gas need to be decompressed to different degrees before entering the engine, and in the embodiment, a first-stage decompression valve 6 and two second-stage decompression valves 8 are arranged, the liquefied gas is connected with a first interface of a first electromagnetic valve 12 through the first-stage decompression valve 6 and the second-stage decompression valve 8 by one channel, and the natural gas is connected with a first interface of the first electromagnetic valve 12 through the second-stage decompression valve 8 by the other channel.
The second interface of the first electromagnetic valve 12 and the third interface of the first electromagnetic valve 12 are respectively connected with the air inlet 1 of the multi-way pipe 9;
the air outlet 2 of the multi-way pipe fitting 9 is connected with the air inlet pipe of the carburetor 10;
In this embodiment the manifold 9 has one inlet and four outlets and the carburettor 10 has four inlets, the provision of the manifold 9 allowing gaseous fuel to enter the multiple inlets of the carburettor 10.
The control module is electrically connected with the first electromagnetic valve 12 and the second electromagnetic valve 14 and controls the on-off of the first electromagnetic valve 12 and the second electromagnetic valve 14 in response to a user instruction.
In this embodiment, the second three-way pipe fitting 13 is further included, where the second three-way pipe fitting 13 includes a first interface of the second three-way pipe fitting 13, a second interface of the second three-way pipe fitting 13, and a third interface of the second three-way pipe fitting 13;
The second interface of the first electromagnetic valve 12 is connected with the first interface of the second three-way pipe fitting 13, and the third interface of the first electromagnetic valve 12 is connected with the second interface of the second three-way pipe fitting 13;
the third interface of the second three-way pipe fitting 13 is connected with the air inlet 1 of the multi-way pipe fitting 9.
In this embodiment the carburettor 10 has only one air inlet, and by providing a second three-way fitting 13, both pipes of natural gas or liquefied gas coming out of different outlets of the first solenoid valve 12 can be connected to one air inlet of the carburettor 10.
In this embodiment, the carburetor 10 is provided with a plurality of groups of air inlets, and each group of air inlets is provided with a main air inlet pipe and a sub air inlet pipe;
the multi-way pipe fitting 9 is provided with a number of air outlets corresponding to the air inlets 4 of the carburetor 10.
By arranging a plurality of groups of air inlets and corresponding to engines with different cylinder numbers, when the engines are in no load or low load, the opening degree of a throttle valve of the carburetor 10 is smaller, the negative pressure near the area close to the auxiliary air inlet pipe is larger, and the auxiliary air inlet pipe is used for providing gas fuel; when the engine is under medium and high load, the opening of the throttle valve of the carburetor 10 is larger, the negative pressure of the whole chamber of the carburetor 10 is larger, and the gas fuel is simultaneously provided through the main air inlet pipe and the auxiliary air inlet pipe to meet the medium and high load operation of the engine.
In this embodiment, the engine is a two-cylinder engine, two sets of air inlet pipes are provided, and each set of air inlet pipe is provided with a main air inlet pipe and an auxiliary air inlet pipe.
In other embodiments, a corresponding number of groups of air inlet pipes may be provided depending on the number of engine cylinders, three groups of air inlet pipes may be provided for a three-cylinder engine, and six groups of air inlet pipes may be provided for a four-cylinder engine.
In this embodiment, the control module responds to the user control, and when receiving the gasoline command selected by the user, the control module blocks the gas channel by controlling the first electromagnetic valve 12, and stops the air supply of the air inlet pipe of the carburetor 10 by controlling the second electromagnetic valve 14, so that the air is supplied by the oil inlet pipe of the carburetor 10;
The control module responds to user control, when a natural gas instruction is selected by a user, the control module controls the first electromagnetic valve 12 to open a first channel of the first electromagnetic valve 12 and close a second channel of the first electromagnetic valve 12, and controls the second electromagnetic valve 14 to stop oil supply of an oil inlet pipe of the carburetor 10 and supply air by an air inlet pipe of the carburetor 10;
The control module responds to the control of a user, when receiving a command of selecting liquefied gas by the user, the control module controls the first electromagnetic valve 12 to open the second channel of the first electromagnetic valve 12 and close the first channel of the first electromagnetic valve 12, and controls the second electromagnetic valve 14 to stop the oil supply of the oil inlet pipe of the carburetor 10, so that the air is supplied by the air inlet pipe of the carburetor 10.
The second electromagnetic valve 14 is arranged in the carburetor for controlling the on-off of gasoline, and the carburetor can adopt the oil-gas dual-purpose double-cavity carburetor disclosed in Chinese patent CN207229259U in the implementation process of the invention "
The control module controls the outlet of natural gas and liquefied gas from the outlet of the solenoid valves with different apertures by controlling the first solenoid valve 12 to achieve flow control, and controls the second solenoid valve 14 to achieve the selection of whether the engine fuel is fuel or gas by the carburetor 10. The flexible selection of the three fuels by the user is realized, and the economy is improved.
The control module is connected with an engine ignition control circuit;
The control module responds to the user control, and when receiving a command of selecting gasoline or liquefied gas from a user, the control module sends out a command to the other engine to ignite at an angle of 25;
The control module responds to the user control, and when the natural gas command selected by the user is received, the control module sends out the command and the ignition angle of the other engine is 35.
The control module selects different ignition angles according to different fuels, so that a better ignition effect can be realized.
Example 2
As shown in fig. 2 and 3, the present embodiment includes a first three-way pipe 7, a first-stage pressure reducing valve 6, and a second-stage pressure reducing valve 8, and the first-stage pressure reducing valve 6 and the second-stage pressure reducing valve 8 are connected by the first three-way pipe 7.
In the embodiment, the first three-way pipe fitting is arranged, so that the natural gas and the liquefied gas can share the second-stage pressure reducing valve, the cost is reduced, and the space is saved.
In other embodiments, separate depressurization passages may be used for the liquefied gas and the natural gas, respectively.
The first three-way pipe fitting 7 comprises a first interface of the first three-way pipe fitting 7, a second interface of the first three-way pipe fitting 7 and a third interface of the first three-way pipe fitting 7;
One end of the first-stage pressure reducing valve 6 is connected with the liquefied gas interface, and the other end of the first-stage pressure reducing valve is connected with a first interface of the first tee pipe fitting 7; the natural gas interface is connected with a second interface of the first tee pipe fitting 7;
one end of the second-stage pressure reducing valve 8 is connected with a third interface of the first three-way pipe fitting 7, and the other end of the second-stage pressure reducing valve 8 is connected with a first interface of the first electromagnetic valve 12.
When the user uses the liquefied gas, the second interface of the first three-way pipe fitting 7 is closed, the liquefied gas is conveyed to the first interface of the first electromagnetic valve 12 through the first-stage pressure reducing valve 6 and the second-stage pressure reducing valve 8, when the user uses the natural gas, the first interface of the first three-way pipe fitting 7 or the liquefied gas interface is closed, the natural gas enters from the second interface of the first three-way pipe fitting 7, and is conveyed to the first interface of the first electromagnetic valve 12 through the second-stage pressure reducing valve 8. By adopting the connection mode of the embodiment, one first-stage pressure reducing valve 6 is saved, the cost is reduced, and the space occupied by equipment is reduced.
The carburetor 10 which can flexibly select between gas supply and oil supply can realize flexible selection among petroleum gas, natural gas and gasoline by arranging the electromagnetic valve capable of controlling the gas flow, thereby improving the economy.
The foregoing is merely exemplary of the present application and specific structures and/or configurations well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the practical utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The three-fuel engine is characterized by comprising a first-stage pressure reducing valve, a second-stage pressure reducing valve, a first electromagnetic valve, a multi-way pipe fitting, a carburetor, a control module, a natural gas interface and a liquefied gas interface;
the first electromagnetic valve comprises a first electromagnetic valve first interface, a first electromagnetic valve second interface, a first electromagnetic valve third interface, a first electromagnetic valve first channel and a first electromagnetic valve second channel;
the first electromagnetic valve first channel is connected with the first electromagnetic valve first interface and the first electromagnetic valve second interface, and the first electromagnetic valve second channel is connected with the first electromagnetic valve first interface and the first electromagnetic valve third interface;
the aperture of the third interface of the first electromagnetic valve is smaller than that of the second interface of the first electromagnetic valve, and the flow control of natural gas or liquefied gas is realized by controlling the sizes of different outlet apertures of the first electromagnetic valve;
An oil inlet pipe and an air inlet pipe are arranged on the carburetor, and a second electromagnetic valve for controlling the on-off of fuel oil is arranged on the carburetor; the liquefied gas interface is connected with a first interface of the first electromagnetic valve sequentially through a first-stage pressure reducing valve and a second-stage pressure reducing valve;
The natural gas interface is connected with a first interface of a first electromagnetic valve through a second-stage pressure reducing valve;
the second interface of the first electromagnetic valve and the third interface of the first electromagnetic valve are respectively connected with the air inlet of the multi-way pipe fitting;
The air outlet of the multi-way pipe fitting is connected with the air inlet pipe of the carburetor;
the control module is electrically connected with the first electromagnetic valve and the second electromagnetic valve and responds to a user instruction to control the on-off of the first electromagnetic valve and the second electromagnetic valve;
The second three-way pipe fitting comprises a second three-way pipe fitting first interface, a second three-way pipe fitting second interface and a second three-way pipe fitting third interface;
the second interface of the first electromagnetic valve is connected with the first interface of the second three-way pipe fitting, and the third interface of the first electromagnetic valve is connected with the second interface of the second three-way pipe fitting;
the third interface of the second tee pipe fitting is connected with the air inlet of the multi-way pipe fitting.
2. The three-fuel engine of claim 1, further comprising a first three-way pipe first interface, a first three-way pipe second interface, a first three-way pipe third interface; one end of the first-stage pressure reducing valve is connected with the liquefied gas interface, and the other end of the first-stage pressure reducing valve is connected with the first interface of the first tee pipe fitting;
The natural gas interface is connected with the second interface of the first tee pipe fitting;
One end of the second-stage pressure reducing valve is connected with the third interface of the first three-way pipe fitting, and the other end of the second-stage pressure reducing valve is connected with the first interface of the first electromagnetic valve.
3. A three fuel engine as defined in claim 1, wherein said carburetor is provided with a plurality of sets of intake ports, each set of intake ports being provided with a primary intake pipe and a secondary intake pipe;
The multi-way pipe fitting is provided with air outlets which are in quantity corresponding to the air inlet pipes of the carburettors.
4. A three fuel engine as defined in claim 1, wherein said control module responds to the user control, and when the user selects the gasoline command, the control module blocks the gas passage by controlling the first electromagnetic valve, and the control module stops the air supply of the air inlet pipe of the carburetor by controlling the second electromagnetic valve, and the air is supplied from the air inlet pipe of the carburetor;
The control module responds to user control, when a natural gas instruction is received, the control module controls the first electromagnetic valve to open the first channel of the first electromagnetic valve and close the second channel of the first electromagnetic valve, and controls the second electromagnetic valve to stop oil supply of the oil inlet pipe of the carburetor, so that the air supply of the air inlet pipe of the carburetor is realized;
The control module responds to user control, when a liquefied gas instruction is received, the control module controls the first electromagnetic valve to open the second channel of the first electromagnetic valve to close the first channel of the first electromagnetic valve, and controls the second electromagnetic valve to stop oil supply of the oil inlet pipe of the carburetor, so that the air supply of the air inlet pipe of the carburetor is realized.
5. A three fuel engine as in claim 1 wherein said control module is connected to an engine ignition control circuit;
The control module responds to user control, and when receiving a command of selecting gasoline or liquefied gas from a user, the control module sends out a command that the ignition angle of the other engine is 25 degrees;
The control module responds to user control, and when a natural gas instruction selected by a user is received, the control module sends out an instruction to further ignite the engine at an angle of 35 degrees.
6. A three fuel engine as in claim 1 wherein said first solenoid valve first port aperture is larger than said first solenoid valve second port aperture;
the first interface caliber of the first electromagnetic valve is larger than the third interface caliber of the first electromagnetic valve.
7. A three fuel engine as in claim 1, wherein said control module is a PLC.
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| CN201910361080.6A CN110017209B (en) | 2019-04-30 | 2019-04-30 | Three-fuel engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910361080.6A CN110017209B (en) | 2019-04-30 | 2019-04-30 | Three-fuel engine |
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| CN110017209B true CN110017209B (en) | 2024-06-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113864069A (en) * | 2021-11-09 | 2021-12-31 | 重庆宗申通用动力机械有限公司 | Multi-fuel switching device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2858457Y (en) * | 2006-06-09 | 2007-01-17 | 重庆市客车总厂 | Three-wheel motorcycle with dual-purpose fuel |
| CN104047710A (en) * | 2014-05-30 | 2014-09-17 | 浙江耀锋动力科技有限公司 | Multi-fuel power generator unit |
| CN107461289A (en) * | 2017-08-24 | 2017-12-12 | 中国第汽车股份有限公司 | The method of adjustment of the gasoline natural gas flexible fuel engine angle of ignition |
| CA2979453A1 (en) * | 2016-10-04 | 2018-04-04 | Champion Engine Technology, LLC | Fuel system for a multi-fuel internal combustion engine |
| CN209959353U (en) * | 2019-04-30 | 2020-01-17 | 重庆大江动力设备制造有限公司 | Three-fuel engine |
-
2019
- 2019-04-30 CN CN201910361080.6A patent/CN110017209B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2858457Y (en) * | 2006-06-09 | 2007-01-17 | 重庆市客车总厂 | Three-wheel motorcycle with dual-purpose fuel |
| CN104047710A (en) * | 2014-05-30 | 2014-09-17 | 浙江耀锋动力科技有限公司 | Multi-fuel power generator unit |
| CA2979453A1 (en) * | 2016-10-04 | 2018-04-04 | Champion Engine Technology, LLC | Fuel system for a multi-fuel internal combustion engine |
| CN107461289A (en) * | 2017-08-24 | 2017-12-12 | 中国第汽车股份有限公司 | The method of adjustment of the gasoline natural gas flexible fuel engine angle of ignition |
| CN209959353U (en) * | 2019-04-30 | 2020-01-17 | 重庆大江动力设备制造有限公司 | Three-fuel engine |
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