CA2307927A1 - Self-igniting gaseous fuel injector for internal combustion engine - Google Patents
Self-igniting gaseous fuel injector for internal combustion engine Download PDFInfo
- Publication number
- CA2307927A1 CA2307927A1 CA002307927A CA2307927A CA2307927A1 CA 2307927 A1 CA2307927 A1 CA 2307927A1 CA 002307927 A CA002307927 A CA 002307927A CA 2307927 A CA2307927 A CA 2307927A CA 2307927 A1 CA2307927 A1 CA 2307927A1
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- Prior art keywords
- fuel
- radical
- ion
- internal combustion
- combustion engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 104
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 claims 2
- 230000001590 oxidative effect Effects 0.000 claims 2
- 150000002500 ions Chemical class 0.000 abstract 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 230000009977 dual effect Effects 0.000 description 5
- 239000002283 diesel fuel Substances 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 239000001294 propane Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000003502 gasoline Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 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
- F02D19/02—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
- F02D19/021—Control of components of the fuel supply system
- F02D19/022—Control of components of the fuel supply system to adjust the fuel pressure, temperature or composition
-
- 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
-
- 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
- F02M21/0227—Means to treat or clean gaseous fuels or fuel systems, e.g. removal of tar, cracking, reforming or enriching
-
- 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
- F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
- F02M27/04—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by electric means, ionisation, polarisation or magnetism
-
- 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
- F02D19/0668—Treating or cleaning means; Fuel filters
- F02D19/0671—Means to generate or modify a fuel, e.g. reformers, electrolytic cells or membranes
-
- 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
- F02M21/0275—Injectors for in-cylinder direct injection, e.g. injector combined with spark plug
-
- 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
- F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
- F02M27/04—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by electric means, ionisation, polarisation or magnetism
- F02M27/042—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by electric means, ionisation, polarisation or magnetism by plasma
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
A self-igniting gaseous fuel injector, comprising a fuel injector and a radical generator in this invention, injects a fuel to combustion chamber (cylinder) of an internal combustion engine at prescribed variable or non-variable pressure and quantities and predetermined timing intervals through single or multiple ports. The radical generator produces radicals/ions at predetermined timing and concentrations by breaking the fuel molecules before injection of the fuel into the cylinder and it reacts and ignites itself with the cylinder air or prescribed cylinder mixture as it enters into the cylinder with or without external igniting sources which can be located in an appropriate part of the cylinder. The radical generator can be electrical spark discharge type or plasma reactor type or electric-magnetic type (including micro-wave type) that is primarily used to break molecules of the fuel into radicals/ions at prescribed amounts and timing. The fuel can be gaseous fuels or liquid fuel vapors or mixtures of gaseous fuels or mixtures of gaseous fuels and liquid fuel vapors. The radical generator is positioned at prescribed location and in predetermined shape in the fuel injection system.
Description
Title of'Invention: Self igniting gaseous fuel injector for internal combustion engine Inventor: Shiva Om Bade Shrestha #12, 8_540 Silver Spring Road N. W.
Calgary, AB, T3B 4J6 Canada Phone: 403 - 2$9 3724 Email:sobadeshrestha(aOhotmail.com Description of the Invention Field of~the invention:
This invention relates to fuel injector for internal combustion engines for delivering particularly gaseous fuel to an engine.
Background of the invention:
Fuel injection system is used to deliver fuel to internal combustion engines.
Majority of injection systems is designed to deliver liquid conventional fuels such as gasoline and diesel fuels. Engines that runs in alternative fuels such as natural gas and propane have been also developed. Majority of these alternative fuel engines is spark ignition type or dual fuel engine type that runs on diesel and a gaseous fuel such as propane or natural gas. Generally, in dual fuel engines, diesel fuel is used as a pilot igniter for gaseous fuel mixture inside the engine cylinder. In these engines, the gaseous fuel is either injected through the same injector as of diesel or a separate injector or a injector that is located at intake manifold or intake valve. Conversion kits have also been developed for converting gasoline or diesel (liquid fuel) engines to natural gas or propane (gaseous fuel). Generally these conversion kits comprise a fuel/air mixer system for delivering the gaseous fuel to the engine cylinder.
Disclosure of the Invention:
The present invention of a new concept of fuel injectors that provides a self igniting gaseous fuel at the predetermined pressure, ways and parts of injection of a fuel into an engine cylinder is disclosed. This avoids the necessity of injecting diesel fuel to provide pilot into a dual fuel engine which is a general case. Hence, there will be no need to have two separate fuel supply systems in these engines and the engine will run just like a diesel engine (compression ignition engine) only with gaseous fuel injection.
The present invention of a self igmiting gaseous fuel injector is comprised of a fuel injector and a radical generator. The fuel injector injects a fuel to combustion chamber (cylinder) of an internal combustion engine at prescribed variable or non-variable pressure and quantities and predetermined timing intervals through single or multiple ports. The radical generator produces radicals at predetermined timing and concentrations by breaking the fuel molecules before injection of the fuel into the cylinder so that it can react and ignite itself with the cylinder air or prescribed cylinder mixture as it enters into the cylinder with or without external igniting sources which can be located in an appropriate part of the cylinder. 'the radical generator can be electrical spark discharge type or plasma reactor type or electric-ma~,n~etic type (including micro-wave type) that is primarily used to break molecules of the fuel into radicals at prescribed amounts and timing. The fuel can be gaseous fuels or liquid fuel vapors or mixtures of gaseous fuels or mixtures of gaseous fuels and liquid fuel vapors. The radical generator is positioned at prescribed location and in predetermined shape in the fuel injection system.
Calgary, AB, T3B 4J6 Canada Phone: 403 - 2$9 3724 Email:sobadeshrestha(aOhotmail.com Description of the Invention Field of~the invention:
This invention relates to fuel injector for internal combustion engines for delivering particularly gaseous fuel to an engine.
Background of the invention:
Fuel injection system is used to deliver fuel to internal combustion engines.
Majority of injection systems is designed to deliver liquid conventional fuels such as gasoline and diesel fuels. Engines that runs in alternative fuels such as natural gas and propane have been also developed. Majority of these alternative fuel engines is spark ignition type or dual fuel engine type that runs on diesel and a gaseous fuel such as propane or natural gas. Generally, in dual fuel engines, diesel fuel is used as a pilot igniter for gaseous fuel mixture inside the engine cylinder. In these engines, the gaseous fuel is either injected through the same injector as of diesel or a separate injector or a injector that is located at intake manifold or intake valve. Conversion kits have also been developed for converting gasoline or diesel (liquid fuel) engines to natural gas or propane (gaseous fuel). Generally these conversion kits comprise a fuel/air mixer system for delivering the gaseous fuel to the engine cylinder.
Disclosure of the Invention:
The present invention of a new concept of fuel injectors that provides a self igniting gaseous fuel at the predetermined pressure, ways and parts of injection of a fuel into an engine cylinder is disclosed. This avoids the necessity of injecting diesel fuel to provide pilot into a dual fuel engine which is a general case. Hence, there will be no need to have two separate fuel supply systems in these engines and the engine will run just like a diesel engine (compression ignition engine) only with gaseous fuel injection.
The present invention of a self igmiting gaseous fuel injector is comprised of a fuel injector and a radical generator. The fuel injector injects a fuel to combustion chamber (cylinder) of an internal combustion engine at prescribed variable or non-variable pressure and quantities and predetermined timing intervals through single or multiple ports. The radical generator produces radicals at predetermined timing and concentrations by breaking the fuel molecules before injection of the fuel into the cylinder so that it can react and ignite itself with the cylinder air or prescribed cylinder mixture as it enters into the cylinder with or without external igniting sources which can be located in an appropriate part of the cylinder. 'the radical generator can be electrical spark discharge type or plasma reactor type or electric-ma~,n~etic type (including micro-wave type) that is primarily used to break molecules of the fuel into radicals at prescribed amounts and timing. The fuel can be gaseous fuels or liquid fuel vapors or mixtures of gaseous fuels or mixtures of gaseous fuels and liquid fuel vapors. The radical generator is positioned at prescribed location and in predetermined shape in the fuel injection system.
2 BRIEF DESCRIPTION OF THE DRA WINGS
Figure 1 is a view schematically showing a specific system for fuel supply of an internal combustion engine in accordance with the present invention, which operates with the use of an inventive method; and Figure 2 is a view schematically showing a basic system for fuel supply of an internal combustion engine in accordance with the present invention which operates with the use of an inventive method.
Figure 1 is a view schematically showing a specific system for fuel supply of an internal combustion engine in accordance with the present invention, which operates with the use of an inventive method; and Figure 2 is a view schematically showing a basic system for fuel supply of an internal combustion engine in accordance with the present invention which operates with the use of an inventive method.
3 DISCRIPTION OF PREFFERED EMBODIMENTS
A fuel supply system in accordance with the present invention which operates in accordance with the inventive method is used for supplying fuel to an internal combustion engine, for example a compression ignition or a dual fuel engine 9.
The system includes a high pressure fuel tank 1 for storing fluid fuel such as natural gas or hydrogen or propane or any gaseous fuel. A control valve or similar device 3 controls supply of the fuel from the gas tank 1 to the internal combustion engine. The engine is provided with intake manifold system 7 with throttle 7 (optional) and an exhaust system 10. In the case of modern closed loop engine, the exhaust system 10 includes an exhaust gas oxygen sensor which outputs an information about oxygen content in the exhaust gases on a signal line. Although it is illustrated as a closed-loop control system, the electronic control unit 6 in accordance with the present invention can be used to operate with engines which are opened-looped and do not have an exhaust gas oxygen sensor.
The engine in accordance with the present invention is equipped with fuel injection system which includes a radical/ion generator 4 and a injector or a nozzle 5.
However, the preferred embodiment is described with a direct-in-cylinder injection system it may equally be suited to operate with a carbureted or an intake manifold inj ection.
The electronic unit 6 accepts inputs from several sensors including from operator accelerator paddle 1 I and it outputs control signals to valve 3 and or injector 5 which can be formed as normally closed fuel-gas control solenoid valve. It also outputs control signals to the radical and or ion generator control module 4. In principle, the radical and or ion generator and the injector may incorporated in one unit. During the operation the electronic control unit may receive signals from an engine coolant temperature sensor, an intake air temperature sensor, an engine speed sensor, a throttle position sensor (optional), a manifold pressure sensor, a fuel pressure sensor, an accelerator pedal sensor and a battery voltage sensor. For optimal perfornlance it is preferable that the electronic control unit also receives input from one or several other sensors such as exhaust gas oxygen sensor, a mass air flow sensor, a barometric sensor, and an exhaust gas recirculation sensor if the engine has exhaust recirculation capabilities.
Also other sensors can be used for sensing other operating parameters.
As shown in Figure 1, the electronic control unit receives a number of signals from sensors which monitor selected operating conditions the engine 9, and in turn sends a signal to the control valves 3 and a signal to radical/ion generator 4 and or injector or nozzle if needed which supply the compressed high pressure gaseous fuel to the cylinder.
A pressure regular 2 may be used to supply the fuel at predetermined pressure.
As the fuel is supplied at or near top dead center, a high pressure fuel system is needed. In case, if fuel pressure available in the tank is not enough, a pressuring system may be included.
If liquified gaseous fuel is supplied a liquid pressure pump and evaporator may be incorporated. The output signal from the electronic control unit 6 to the valve 3 and radical/ion generator and or injector may be a pulse-width modulation signal over a fuel
A fuel supply system in accordance with the present invention which operates in accordance with the inventive method is used for supplying fuel to an internal combustion engine, for example a compression ignition or a dual fuel engine 9.
The system includes a high pressure fuel tank 1 for storing fluid fuel such as natural gas or hydrogen or propane or any gaseous fuel. A control valve or similar device 3 controls supply of the fuel from the gas tank 1 to the internal combustion engine. The engine is provided with intake manifold system 7 with throttle 7 (optional) and an exhaust system 10. In the case of modern closed loop engine, the exhaust system 10 includes an exhaust gas oxygen sensor which outputs an information about oxygen content in the exhaust gases on a signal line. Although it is illustrated as a closed-loop control system, the electronic control unit 6 in accordance with the present invention can be used to operate with engines which are opened-looped and do not have an exhaust gas oxygen sensor.
The engine in accordance with the present invention is equipped with fuel injection system which includes a radical/ion generator 4 and a injector or a nozzle 5.
However, the preferred embodiment is described with a direct-in-cylinder injection system it may equally be suited to operate with a carbureted or an intake manifold inj ection.
The electronic unit 6 accepts inputs from several sensors including from operator accelerator paddle 1 I and it outputs control signals to valve 3 and or injector 5 which can be formed as normally closed fuel-gas control solenoid valve. It also outputs control signals to the radical and or ion generator control module 4. In principle, the radical and or ion generator and the injector may incorporated in one unit. During the operation the electronic control unit may receive signals from an engine coolant temperature sensor, an intake air temperature sensor, an engine speed sensor, a throttle position sensor (optional), a manifold pressure sensor, a fuel pressure sensor, an accelerator pedal sensor and a battery voltage sensor. For optimal perfornlance it is preferable that the electronic control unit also receives input from one or several other sensors such as exhaust gas oxygen sensor, a mass air flow sensor, a barometric sensor, and an exhaust gas recirculation sensor if the engine has exhaust recirculation capabilities.
Also other sensors can be used for sensing other operating parameters.
As shown in Figure 1, the electronic control unit receives a number of signals from sensors which monitor selected operating conditions the engine 9, and in turn sends a signal to the control valves 3 and a signal to radical/ion generator 4 and or injector or nozzle if needed which supply the compressed high pressure gaseous fuel to the cylinder.
A pressure regular 2 may be used to supply the fuel at predetermined pressure.
As the fuel is supplied at or near top dead center, a high pressure fuel system is needed. In case, if fuel pressure available in the tank is not enough, a pressuring system may be included.
If liquified gaseous fuel is supplied a liquid pressure pump and evaporator may be incorporated. The output signal from the electronic control unit 6 to the valve 3 and radical/ion generator and or injector may be a pulse-width modulation signal over a fuel
4 injection fuel line to control the injection of the fuel. However other types of control methods and other forms of fuel delivery may be utilized.
The duration of opening and the time of opening for the control valve 3 and or radical/ion generator 4 and or injector 5 are determined by a series of computations performed by the electronic control unit 6, using as inputs the signals delivered by the various sensors described above. The activation of the radical/ion generator allows to break down the molecule of fuel into many types of radicals and ion particles that ignites as it enters into the engine cylinder and helps ignite the fuel injected. This provides the uniqueness of this invention that no spark ignition system is needed and the fuel can be ignited as diesel fuel in compression ignition type engines. For an example, this avoids the use of diesel pilot in dual fuel engines and these engines can be run on the gaseous fuel just as diesel engines. The radical/ion generator may consist of a power supply unit and a radical/ion producer such as a plasma generator, a micro-wave-producer and or a powerful spark discharge. T'o reduce the power requirement and improve the effectiveness of radical/ion generator an additive may be used in the fuel supply system.
While the invention has been illustrated and described as embodied in method of and system for fuel supply for an internal combustion engine, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.
Without further analysis, the following will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.
What is claimed as new and desired to be protected by Letters of Patent is set forth in the appended claims.
The duration of opening and the time of opening for the control valve 3 and or radical/ion generator 4 and or injector 5 are determined by a series of computations performed by the electronic control unit 6, using as inputs the signals delivered by the various sensors described above. The activation of the radical/ion generator allows to break down the molecule of fuel into many types of radicals and ion particles that ignites as it enters into the engine cylinder and helps ignite the fuel injected. This provides the uniqueness of this invention that no spark ignition system is needed and the fuel can be ignited as diesel fuel in compression ignition type engines. For an example, this avoids the use of diesel pilot in dual fuel engines and these engines can be run on the gaseous fuel just as diesel engines. The radical/ion generator may consist of a power supply unit and a radical/ion producer such as a plasma generator, a micro-wave-producer and or a powerful spark discharge. T'o reduce the power requirement and improve the effectiveness of radical/ion generator an additive may be used in the fuel supply system.
While the invention has been illustrated and described as embodied in method of and system for fuel supply for an internal combustion engine, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.
Without further analysis, the following will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.
What is claimed as new and desired to be protected by Letters of Patent is set forth in the appended claims.
Claims (20)
1. A method of a fuel supply for an internal combustion engine, comprising the steps of providing a source of a fluid fuel and radical/ion in predetermined quantities and predetermined ways which are determined in correspondence with sensed operational parameter of the internal combustion engine so as to provide fuel and radical/ion mixture to be supplied to the internal combustion engine.
2. A method as defined in claim 1; wherein said sensing of an operational parameter includes a sensing selected from the group consisting of sensing an engine coolant temperature, an intake air temperature, an engine speed, a manifold pressure, a fuel pressure, a battery voltage, an exhaust gas oxygen composition, a knocking, a mass air flow and an exhaust gas recirculation.
3. A method as defined in claim 1; and further comprising providing a fuel metering means for the fuel located downstream of said source and a regulator so as to provide the fuel at predetermined pressure.
4. A method as defined in claim 1; and further comprising a pressure boosting pump and or evaporator if the fuel is supplied in liquid form.
5. A method as defined in claim 1; wherein said radical/ion are generated by breaking the fuel molecules into various radical and or ion which are more prompt to chemical reaction and provide ignition of the fuel and oxidant mixture, and said radical/ion generator may be consist of a radical/ion generator unit and a power supply unit.
6. A method as defined in claim 5; further comprising a system that provides a necessary quantities at predetermined time of radical and or ion in order to provide ignition of the fuel in the combustion chamber of the internal combustion engine.
7. A method as defined in claim 5; wherein said radical/ion generator system may be of various types such as a thermal or non thermal plasma type, a microwave type and, a spark discharge type that are capable to provide predetermined amount of such radical and or ion at predetermined time and duration.
8. A method as defined in claim 1; and further comprising an injection nozzle or injector to provide the fuel and radical/ion mixture into the cylinder of the engine at predetermined pressure and temperature and predetermined ways.
9. A method as defined in claim 1; and further comprising a provision to supply an additive in order to reduce the power requirement of and improve efficiency of radical and or ion generator.
10. A method as defined in claim 1; and further comprising providing assistance from such as glow plug, or heat surface or spark igniter to ignite the fuel and radical/ion mixture in the combustion chamber in the internal combustion engine.
11. A system of a fuel supply for an internal combustion engine, comprising the steps of providing a source of a fluid fuel and radical/ion in predetermined quantities and predetermined ways which are determined in correspondence with sensed operational parameter of the internal combustion engine so as to provide fuel and radical/ion mixture to be supplied to the internal combustion engine.
12. A system as defined in claim 11; wherein said sensing of an operational parameter includes a sensing selected from the group consisting of sensing an engine coolant temperature, an intake air temperature, an engine speed, a manifold pressure, a fuel pressure, a battery voltage, an exhaust gas oxygen composition, a knocking, a mass air flow and an exhaust gas recirculation.
13. A system as defined in claim 11; and further comprising providing a fuel metering means for the fuel located downstream of said source and a regulator so as to provide the fuel at predetermined pressure.
14. A system as defined in claim 11; and further comprising a pressure boosting pump and or evaporator if the fuel is supplied in liquid form.
15. A system as defined in claim 11; wherein said radical/ion are generated by breaking the fuel molecules into various radical and or ion which are more prompt to chemical reaction and provide ignition of the fuel and oxidant mixture, and said radical/ion generator may be consist of a radical/ion generator unit and a power supply unit.
16. A system as defined in claim 15; further comprising a system that provides a necessary quantities at predetermined time of radical and or ion in order to provide ignition of the fuel in the combustion chamber of the internal combustion engine.
17. A system as defined in claim 15; wherein said radical/ion generator system may be of various types such as a thermal or non thermal plasma type, a microwave type and, a spark discharge type that are capable to provide predetermined amount of such radical and or ion at predetermined time and duration.
18. A system as defined in claim 11; and further comprising an injection nozzle or injector to provide the fuel and radical/ion mixture into the cylinder of the engine at predetermined pressure and temperature and predetermined ways.
19. A system as defined in claim 11; and further comprising a provision to supply an additive in order to reduce the power requirement of and improve efficiency of radical and or ion generator.
20. A system as defined in claim 11; and further comprising providing assistance from such as glow plug, or heat surface or spark igniter to ignite the fuel and radical/ion mixture in the combustion chamber in the internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002307927A CA2307927A1 (en) | 2000-05-12 | 2000-05-12 | Self-igniting gaseous fuel injector for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002307927A CA2307927A1 (en) | 2000-05-12 | 2000-05-12 | Self-igniting gaseous fuel injector for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2307927A1 true CA2307927A1 (en) | 2001-11-12 |
Family
ID=4166117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002307927A Abandoned CA2307927A1 (en) | 2000-05-12 | 2000-05-12 | Self-igniting gaseous fuel injector for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2307927A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7469662B2 (en) * | 1999-03-23 | 2008-12-30 | Thomas Engine Company, Llc | Homogeneous charge compression ignition engine with combustion phasing |
| CN104919168A (en) * | 2012-11-12 | 2015-09-16 | 麦卡利斯特技术有限责任公司 | Chemical fuel conditioning and activation |
| US9562500B2 (en) | 2013-03-15 | 2017-02-07 | Mcalister Technologies, Llc | Injector-igniter with fuel characterization |
| US9631592B2 (en) | 2012-11-02 | 2017-04-25 | Mcalister Technologies, Llc | Fuel injection systems with enhanced corona burst |
| DE102018211006A1 (en) * | 2018-07-04 | 2020-01-09 | Robert Bosch Gmbh | Method for operating a monovalent internal combustion engine with diffusion combustion according to the diesel principle, fuel injector |
-
2000
- 2000-05-12 CA CA002307927A patent/CA2307927A1/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7469662B2 (en) * | 1999-03-23 | 2008-12-30 | Thomas Engine Company, Llc | Homogeneous charge compression ignition engine with combustion phasing |
| US9631592B2 (en) | 2012-11-02 | 2017-04-25 | Mcalister Technologies, Llc | Fuel injection systems with enhanced corona burst |
| CN104919168A (en) * | 2012-11-12 | 2015-09-16 | 麦卡利斯特技术有限责任公司 | Chemical fuel conditioning and activation |
| EP2917552A4 (en) * | 2012-11-12 | 2016-08-03 | Mcalister Technologies Llc | Chemical fuel conditioning and activation |
| US9562500B2 (en) | 2013-03-15 | 2017-02-07 | Mcalister Technologies, Llc | Injector-igniter with fuel characterization |
| DE102018211006A1 (en) * | 2018-07-04 | 2020-01-09 | Robert Bosch Gmbh | Method for operating a monovalent internal combustion engine with diffusion combustion according to the diesel principle, fuel injector |
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