CN116044581A - Three fuel electronic injection system - Google Patents
Three fuel electronic injection system Download PDFInfo
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- CN116044581A CN116044581A CN202310083944.9A CN202310083944A CN116044581A CN 116044581 A CN116044581 A CN 116044581A CN 202310083944 A CN202310083944 A CN 202310083944A CN 116044581 A CN116044581 A CN 116044581A
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- fuel
- motor
- gas
- injection system
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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
- F02D19/02—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 gaseous fuels
- F02D19/026—Measuring or estimating parameters related to the fuel supply system
- F02D19/027—Determining the fuel pressure, temperature or volume flow, the fuel tank fill level or a valve position
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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
- F02D19/0686—Injectors
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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
- F02D19/08—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 simultaneously using pluralities of fuels
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- 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
- F02M21/0248—Injectors
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- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
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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
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)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention relates to a three-fuel electronic injection system, which comprises a valve body main body, wherein a through air inlet channel is arranged in the middle of the valve body main body, a throttle valve is arranged in the air inlet channel, a pressure sensor, a first motor, a second motor and a control box with an electronic control unit ECU (electronic control unit) are arranged on the valve body main body, a gas channel is arranged on the side wall of the air inlet channel, and the pressure sensor is used for detecting the air pressure in the gas channel; the first motor is used for driving the regulating valve block to move so as to change the air inlet sectional area of the fuel gas channel; the second motor is used for driving the throttle valve to turn over; the pressure sensor, the first motor and the second motor are respectively and electrically connected with the electronic control unit ECU, compared with the prior art, the engine matched with the electronic injection system can use fuel gas as fuel, can accurately control the air-fuel ratio, effectively reduces the generation of harmful substances in tail gas, and has better economical efficiency and environmental protection compared with fuel oil and fuel.
Description
Technical Field
The invention relates to the technical field of engine electronic injection systems, in particular to a three-fuel electronic injection system.
Background
With the development of stricter environmental protection regulations, the original carburetor oil supply system of the small-sized gasoline generating set cannot control the fuel quantity more accurately, so that the emission quantity of CO, NOx and HC in tail gas emissions is overlarge, and the regulation limit value cannot be met. The electronic injection system can be used for controlling the injection of the fuel oil more accurately, so that the fuel mixture is combusted more fully at the ignition moment, and the emission of CO, NOx and HC is effectively reduced. In the prior art, the electronic injection system of the small gasoline generating set can only use fuel oil as fuel due to the limitation of the structural design, however, fuel gas is used as fuel which is more economical and environment-friendly, but can not be used on the system, so that an engine matched with the electronic injection system can only use the fuel oil, and compared with the fuel gas, the electronic injection system has poorer economical efficiency and environment-friendly property.
Disclosure of Invention
The invention aims at: aiming at the problems that an engine matched with an electronic injection system in the prior art cannot use fuel gas as fuel and has poor economical efficiency and environmental protection, the three-fuel electronic injection system is provided.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the three-fuel electronic injection system comprises a valve body main body, wherein a through air inlet channel is arranged in the middle of the valve body main body, a throttle valve is arranged in the air inlet channel, a pressure sensor, a first motor, a second motor and a control box with an electronic control unit ECU (electronic control unit) are arranged on the valve body main body, a gas channel is formed in the side wall of the air inlet channel, and the pressure sensor is used for detecting the air pressure in the gas channel; the first motor is used for driving the regulating valve block to move so as to change the air inlet sectional area of the fuel gas channel; the second motor is used for driving the throttle valve to turn over; the pressure sensor, the first motor and the second motor are respectively and electrically connected with the electronic control unit ECU.
According to the invention, when the small-sized petrol engine generator set uses fuel gas (natural gas and liquefied petroleum gas) as fuel, the engine runs, the air inlet channel generates negative pressure, and the fuel gas and air are sucked into the engine combustion chamber to be combusted through the fuel gas channel and the air inlet channel respectively; the pressure sensor detects the pressure of the entering gas, the electronic control unit ECU sends out a signal based on the pressure value to control the first motor to drive the regulating valve block to move so as to change the sectional area of the gas channel, so that the gas inflow is changed, and meanwhile, the electronic control unit ECU sends out a signal to control the second motor to adjust the overturning angle of the throttle valve, namely, adjust the air inflow of the air, so that the designed air-fuel ratio can be achieved, the combustion is more sufficient, the generation of harmful substances in the tail gas is reduced.
Furthermore, the valve body main body is also provided with a gas pipe which is embedded in the gas channel and communicated with the gas channel, and the gas pipe is arranged, so that the natural gas or the liquefied petroleum gas can be conveniently accessed.
Further, the valve body main body is also provided with a fuel nozzle, the side wall of the air inlet channel is also provided with a fuel channel, and the fuel nozzle is communicated with the air inlet channel through the fuel channel; the fuel nozzle is electrically connected with the electronic control unit ECU, and when fuel is selected as fuel, the electronic control unit ECU can accurately control the fuel feeding amount of the fuel nozzle, so that the fuel mixture is combusted more fully, and the emission of CO, NOx and HC is reduced.
Further, a fuel nozzle is arranged at one end, far away from the valve body main body, of the fuel nozzle, and the fuel nozzle is communicated with the fuel tank.
Further, an accommodating cavity is formed in the side wall of the gas channel, one end of the regulating valve block is arranged in the accommodating cavity, the other end of the regulating valve block extends out of the side wall of the gas channel, the first motor drives the regulating valve block to axially translate along the screw rod through the screw rod so as to control the extending amount of the regulating valve block from the side wall, the larger the extending amount of the regulating valve block is, the smaller the gas inlet sectional area is, and vice versa.
Further, the throttle valve is circular plate-shaped, a connecting rod is fixedly arranged on the diameter direction of the throttle valve, the output end of the second motor is in transmission connection with one end of the connecting rod, the second motor controls the throttle valve to overturn so as to adjust the air inflow of air, and the adjusting structure is simple and easy to realize accurate control of the air inflow.
Further, the first motor, the pressure sensor and the control box are all connected to the valve body through bolts, and the connection is stable and reliable, easy to assemble and disassemble and convenient to maintain subsequently.
Furthermore, the first motor is a stepping motor or a servo motor, the second motor is a stepping motor or a servo motor, and the stepping motor and the servo motor can be matched with an electronic control unit ECU to realize accurate control.
Compared with the prior art, the invention has the beneficial effects that: the engine matched with the electronic injection system can use fuel gas (natural gas and liquefied petroleum gas) as fuel, can accurately control the air-fuel ratio, effectively reduces the generation of harmful substances in tail gas, and has better economical efficiency and environmental protection compared with fuel oil; meanwhile, the fuel oil can be used as fuel, and the accurate control of the fuel supply amount is realized, so that the electronic injection system can be suitable for three fuels of natural gas, liquefied petroleum gas and fuel oil, and has wider application range.
Description of the drawings:
FIG. 1 is a schematic view of a front view structure of the present invention;
fig. 2 is a schematic view of a back view structure according to the present invention.
The marks in the figure: the device comprises a first motor, a 2-pressure sensor, a 3-gas pipe, a 4-valve body main body, a 5-regulating valve block, a 6-second motor, a 7-control box, an 8-fuel nozzle, a 9-fuel nozzle, a 10-throttle valve and an 11-connecting rod.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment provides a three-fuel electronic injection system, as shown in fig. 1-2, which comprises a valve body main body 4, wherein a through air inlet channel is arranged in the middle of the valve body main body 4, a throttle valve 10 is arranged in the air inlet channel, the air inlet channel is communicated with an engine combustion chamber through an opening on the front end surface of the valve body main body 4 in fig. 1, a pressure sensor 2, a first motor 1, a second motor 6 and a control box 7 with an electronic control unit ECU (electronic control unit) are arranged on the valve body main body 4, a gas channel is arranged on the side wall of the air inlet channel, and the pressure sensor 2 is used for detecting the air pressure in the gas channel; the communication part of the gas channel and the gas inlet channel is provided with a regulating valve block 5, and the first motor 1 is used for driving the regulating valve block 5 to move so as to change the gas inlet sectional area of the gas channel; the second motor 6 is used for driving the throttle valve 10 to turn over; the pressure sensor 2, the first motor 1 and the second motor 6 are respectively and electrically connected with the electronic control unit ECU;
the valve body main body 4 is also provided with a gas pipe 3, and the gas pipe 3 is embedded in the gas channel and communicated with the gas channel;
the valve body main body 4 is also provided with a fuel nozzle 9, the side wall of the air inlet channel is also provided with a fuel channel, and the fuel nozzle 9 is communicated with the air inlet channel through the fuel channel; the fuel nozzle 9 is electrically connected with the electronic control unit ECU;
a fuel nozzle 8 is arranged at one end, far away from the valve body main body 4, of the fuel nozzle 9, and the fuel nozzle 8 is communicated with a fuel tank;
the valve body main body 4 is of a hexahedral structure and comprises two end faces and four side faces, the fuel gas pipe 3 and the fuel nozzle 9 are respectively arranged on two opposite side faces on the valve body main body 4, and the first motor 1 and the control box 7 are respectively arranged on the other two opposite side faces on the valve body main body 4; the second motor 6 is arranged at one end of the control box 7 far away from the valve body main body 4, and all parts on the valve body main body are reasonable in arrangement position, convenient to assemble and disassemble and free from interference during operation;
the side wall of the gas channel is provided with a containing cavity, one end of the regulating valve block 5 is arranged in the containing cavity, the other end extends out of the side wall of the gas channel, and the first motor 1 drives the regulating valve block 5 to axially translate along the screw rod through a screw rod so as to control the extending amount of the regulating valve block 5 from the side wall;
the throttle valve 10 is in a disc shape, a connecting rod is fixedly arranged in the diameter direction of the throttle valve 10, and the output end of the second motor 6 is in transmission connection with one end of the connecting rod 11;
the first motor 1, the pressure sensor 2 and the control box 7 are all connected to the valve body main body 4 through bolts; the fuel nozzle 8 is assembled on the fuel nozzle 9 and is also connected to the valve body main body 4 through bolts;
the first motor 1 is a stepper motor or a servo motor, and the second motor 6 is a stepper motor or a servo motor.
According to the invention, when the small-sized petrol engine generator set uses fuel gas (natural gas and liquefied petroleum gas) as fuel, the engine runs, the air inlet channel generates negative pressure, and the fuel gas and air are sucked into the engine combustion chamber to be combusted through the fuel gas channel and the air inlet channel respectively; the pressure sensor 2 detects the pressure of the entering gas, the electronic control unit ECU sends out a signal based on the pressure value to control the first motor 1 to drive the regulating valve block to move so as to change the sectional area of a gas channel, thus changing the gas inflow, and meanwhile, the electronic control unit ECU sends out a signal to control the second motor 6 to adjust the turnover angle of the throttle valve 10, namely, adjust the air inflow of air, so that the designed air-fuel ratio can be achieved, the combustion is more sufficient, the generation of harmful substances in tail gas is reduced, compared with the problem that an engine matched with an electronic injection system in the prior art cannot use gas as fuel, and the economy and the environmental protection are poor, the engine matched with the electronic injection system can use gas as fuel, the air-fuel ratio can be accurately controlled, the generation of harmful substances in the tail gas is effectively reduced, and compared with fuel, the fuel economy and the environmental protection are better; meanwhile, the fuel oil can be used as fuel, and the accurate control of the fuel supply amount is realized, so that the electronic injection system can be suitable for three fuels of natural gas, liquefied petroleum gas and fuel oil, and has wider application range.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The utility model provides a three fuel electronic fuel injection system, includes valve body main part (4), valve body main part (4) middle part is equipped with the intake duct that link up, be equipped with throttle valve (10), its characterized in that in the intake duct: the valve comprises a valve body main body (4), a valve body and a valve body, wherein the valve body main body is provided with a pressure sensor (2), a first motor (1), a second motor (6) and a control box (7) internally provided with an Electronic Control Unit (ECU), a gas channel is formed in the side wall of the gas inlet channel, and the pressure sensor (2) is used for detecting the gas pressure in the gas channel; the gas channel is provided with a regulating valve block (5) at the communication position with the gas inlet channel, and the first motor (1) is used for driving the regulating valve block (5) to move so as to change the air inlet sectional area of the gas channel; the second motor (6) is used for driving the throttle valve (10) to turn over; the pressure sensor (2), the first motor (1) and the second motor (6) are respectively and electrically connected with the electronic control unit ECU.
2. The three fuel electronic injection system of claim 1 wherein: the valve body main body (4) is also provided with a gas pipe (3), and the gas pipe (3) is embedded in the gas channel and communicated with the gas channel.
3. The three fuel electronic injection system of claim 1 wherein: the valve body main body (4) is also provided with a fuel nozzle (9), the side wall of the air inlet channel is also provided with a fuel channel, and the fuel nozzle (9) is communicated with the air inlet channel through the fuel channel; the fuel nozzle (9) is electrically connected with the electronic control unit ECU.
4. A three fuel electronic injection system according to claim 3 wherein: and a fuel nozzle (8) is arranged at one end, far away from the valve body main body (4), of the fuel nozzle (9), and the fuel nozzle (8) is communicated with a fuel tank.
5. The three fuel electronic injection system of claim 1 wherein: the side wall of the gas channel is provided with a containing cavity, one end of the regulating valve block (5) is arranged in the containing cavity, the other end of the regulating valve block extends out of the side wall of the gas channel, and the first motor (1) drives the regulating valve block (5) to axially translate along the screw rod through a screw rod so as to control the extending amount of the regulating valve block (5) from the side wall.
6. The three fuel electronic injection system of claim 1 wherein: the throttle valve (10) is circular plate-shaped, a connecting rod (11) is fixedly arranged in the diameter direction of the throttle valve (10), and the output end of the second motor (6) is in transmission connection with one end of the connecting rod (11).
7. The three fuel electronic injection system of claim 1 wherein: the first motor (1), the pressure sensor (2) and the control box (7) are all connected to the valve body main body (4) through bolts.
8. The three fuel electronic injection system of claim 1 wherein: the first motor (1) is a stepping motor or a servo motor, and the second motor (6) is a stepping motor or a servo motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310083944.9A CN116044581A (en) | 2023-01-31 | 2023-01-31 | Three fuel electronic injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310083944.9A CN116044581A (en) | 2023-01-31 | 2023-01-31 | Three fuel electronic injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116044581A true CN116044581A (en) | 2023-05-02 |
Family
ID=86133019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310083944.9A Pending CN116044581A (en) | 2023-01-31 | 2023-01-31 | Three fuel electronic injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116044581A (en) |
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2023
- 2023-01-31 CN CN202310083944.9A patent/CN116044581A/en active Pending
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