The invention relates to a method for improving the efficiency of a combustion engine. The method comprises measuring a quantity of a primary fuel supplied to the combustion engine. Determining an operating state of the combustion engine. Selecting a fuel mapping profile based on an operating state
The invention relates to a method for improving the efficiency of a combustion engine. The method comprises measuring a quantity of a primary fuel supplied to the combustion engine. Determining an operating state of the combustion engine. Selecting a fuel mapping profile based on an operating state of the combustion engine and determining from the fuel mapping profile an amount of a secondary fuel to be injected as a fraction of the measured quantity of the primary fuel.
대표청구항▼
1. A method of improving the efficiency of a combustion engine, the method comprising: measuring a quantity of a primary fuel supplied to the combustion engine;injecting an amount of a secondary fuel based on a fraction of the measured quantity of the primary fuel, andvarying the amount of the secon
1. A method of improving the efficiency of a combustion engine, the method comprising: measuring a quantity of a primary fuel supplied to the combustion engine;injecting an amount of a secondary fuel based on a fraction of the measured quantity of the primary fuel, andvarying the amount of the secondary fuel to be injected, so that when the quantity of the primary fuel is below a threshold quantity, the fraction of the secondary fuel to be injected increases as the quantity of primary fuel increases, and once the quantity of the primary fuel exceeds the threshold quantity, the fraction of secondary fuel to be injected decreases as the quantity of primary fuel increases. 2. The method of claim 1, wherein the fraction is less than fifteen percent by volume of the measured quantity of the primary fuel. 3. The method of claim 2, further comprising: determining an operating state of the combustion engine;selecting a fuel mapping profile based on an operating state of the combustion engine; anddetermining from the fuel mapping profile an amount of the secondary fuel to be injected as a fraction of the measured quantity of the primary fuel. 4. The method of claim 3, wherein the engine has a plurality of operating states, each operating state has a corresponding fuel mapping profile, and wherein each fuel mapping profile is defined within a corresponding minimum and maximum value of the fraction. 5. The method of claim 4, wherein the selected fuel mapping profile is based on a measurement of particulate emissions. 6. The method of claim 5, wherein the primary fuel has a larger molecular structure than the secondary fuel. 7. The method of claim 1, wherein the second fuel is injected with air during a compression stage for splitting the secondary fuel into radicals, which are for splitting the primary fuel into smaller molecules during a combustion stage. 8. The method of claim 7, wherein the injected second fuel causes the splitting of the primary fuel into smaller molecules. 9. The method of claim 8, wherein the splitting of the primary fuel occurs substantially simultaneously with the combustion of the smaller molecules. 10. The method of claim 1, wherein the primary fuel is diesel and the secondary fuel is at least one of liquefied petroleum gas (LPG), compressed natural gas (CNG), liquid natural gas (LNG), methane or hydrogen (Browns gas). 11. A combustion engine comprising: a first sensor for measuring a quantity of a primary fuel supplied to the combustion engine;a controller for determining an amount of a secondary fuel to be injected based on a fraction of the measured quantity of the primary fuel, wherein the controller is configured to determine that, when the quantity of the primary fuel is below a threshold quantity, the fraction of secondary fuel to be injected increases as the quantity of primary fuel increases, and once the quantity of the primary fuel exceeds the threshold quantity, the fraction of secondary fuel to be injected decreases as the quantity of primary fuel increases. 12. The combustion engine of claim 11, wherein the combustion engine is an internal combustion engine and the primary fuel is diesel. 13. A kit for retrofitting a combustion engine designed to combust a primary fuel, the kit comprising: a tank for holding a secondary fuel;an injector for injecting secondary fuel into the engine;a controller for determining an amount of a secondary fuel to be injected based on a fraction of a measured quantity of the primary fuel, wherein the controller is configured to determine that, when the quantity of the primary fuel is below a threshold quantity, the fraction of secondary fuel to be injected increases as the quantity of primary fuel increases, and wherein once the quantity of the primary fuel exceeds the threshold quantity, the fraction of secondary fuel to be injected decreases as the quantity of primary fuel increases. 14. A controller for controlling an injection of a second fuel into an engine supplied with a primary fuel, the controller comprising: a first input for receiving an indication of the quantity of the primary fuel being supplied;a processor for determining an amount of a secondary fuel to be injected based on a fraction of a measured quantity of the primary fuel, wherein the processor is configured to determine that i) when the quantity of the primary fuel is below a threshold quantity, the fraction of secondary fuel to be injected increases as the quantity of primary fuel increases, and ii) once the quantity of the primary fuel exceeds the threshold quantity, the fraction of secondary fuel to be injected decreases as the quantity of primary fuel increases. 15. The method of claim 1, wherein once the quantity of the primary fuel exceeds the threshold quantity, decreasing the fraction of secondary fuel to be injected as the quantity of primary fuel increases results in increased combustion efficiency. 16. The method of claim 1, further comprising: providing a gas controller which controls only the supply of the secondary fuel. 17. A combustion engine as claimed in claim 11, wherein the engine further comprises: a second sensor for determining an operating state of the combustion engine, wherein the controller selects a fuel mapping profile based on an operating state of the combustion engine, and wherein the controller determines from the fuel mapping profile the amount of secondary fuel to be injected based on a fraction of the measured quantity of the primary fuel. 18. A kit as claimed in claim 13, wherein the controller is configured to receive: a first input indicating the quantity of the primary fuel being supplied to the engine; anda second input indicating an operating state of the engine, wherein the controller is configured to select a fuel mapping profile based on the operating state and to determine from the selected fuel mapping profile the amount of a secondary fuel to be injected by the injector based on a fraction of the measured quantity of the primary fuel. 19. A controller as claimed in claim 14, wherein the controller comprises: a second input for receiving an indication of an operating state of the engine, wherein the processor is configured to select one of the fuel mapping profiles based on the second input and determine from the fuel mapping profile the amount of the secondary fuel to be injected based on a fraction of the measured quantity of the primary fuel.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (10)
Sun Xiaobo ; Hussein Syed, Air-fuel control for alternative engine fuels.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.