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Novel self-adaptation gas fuel control system

A gas fuel and control system technology, applied in engine control, combustion engine, internal combustion piston engine, etc., can solve problems such as high modification cost, inconvenient operation, and hidden safety hazards of misoperation, and achieve low cost, convenient use and maintenance, and hardware. simple structure

Inactive Publication Date: 2015-11-04
毛志明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the emergence and application of new gaseous fuels, this traditional fuel control and switching method is difficult to meet the flexible switching needs of various gaseous fuels, and the modification cost is high, the operation is inconvenient, and there are safety hazards caused by misoperation

Method used

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Examples

Experimental program
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Effect test

no. 2 example

[0022] The second embodiment, this embodiment is partly the same as the above-mentioned embodiments, except that the exhaust pipe 12 is provided with an air-fuel ratio sensor, and the air-fuel ratio sensor is a common air-fuel ratio sensor in the prior art. The combustible gas concentration sensor 7 is an alkane combustible gas detector in the prior art, and the combustible gas detector is used to detect the concentration of alkane gas.

[0023] The gaseous fuel stored in the gaseous fuel tank 1 in this embodiment is a mixture of natural gas and hydrogen, wherein the volume fraction of hydrogen is 1-50%, and the rest is natural gas. However, the gaseous fuel provided does not have accurate hydrogen and natural gas. Ratio, in the process of combustion, it is necessary to control the system to respond to different hydrogen and natural gas ratios and different air pressure conditions, and specifically adjust to adapt to the best energy supply effect under the current ratio, so the...

no. 3 example

[0025] The third embodiment, this embodiment is partly the same as the above-mentioned embodiments, except that the internal combustion engine 9 is provided with an injection valve 91 and a brake spark plug 92, and the gas fuel is injected through the injection valve in the internal combustion engine 9, simultaneously causing The moving spark plug 92 can directly ignite the gaseous fuel. In this case, the gaseous fuel is diffused and mixed with air and continues to burn, which is a diffusion combustion method. At the same time, another combustion method is to fill the internal combustion engine 9 with natural gas through the injection valve 91- After the air mixture is activated, the spark plug is activated to achieve pre-mixed combustion, and the excess air ratio is calculated by judging the amount of natural gas supplied and the amount of intake air, and when the internal combustion engine can be operated at the air excess ratio equal to or greater than 1.5 When working in th...

no. 4 example

[0026] The fourth embodiment, this embodiment is partly the same as the above-mentioned embodiments, the only difference is that a nano-promoting layer 13 is provided on the side of the inlet pipeline 2, and a nano-promoting material is provided in the nano-promoting layer 13 , the nano-promoting material includes a nano-powder accelerator, a binder, an expansion coefficient regulator and a mixing aid; the nano-powder accelerator: binder: expansion coefficient regulator: mixing aid=40-60:5 -8: 20-30: 10-15; the above ratios are weight ratios.

[0027] The nano-powder accelerator includes 40-80 parts by weight of nano-silicon carbide powder, 30-60 parts by weight of nano-copper oxide, 5-30 parts by weight of zirconia powder, 5-10 parts by weight of chromium oxide powder and 1-10 parts by weight of silicon powder , wherein the particle size of the nano-silicon carbide powder is 100-200nm; the particle size of the nano-copper oxide is 200-300nm; the particle size of the zirconia ...

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Abstract

The invention relates to a novel self-adaptation gas fuel control system. The system can automatically recognize and control internal combustion engine vehicles, ships or power generator sets in various gas fuel types. The novel self-adaptation gas fuel control system achieves self-adaptation adjustment and control over corresponding gas fuel. The control system comprises a gas fuel box, a gas inlet pipeline, an electromagnetic valve, a first pressure sensor, a second pressure sensor, a pressure reducing valve, an internal combustion engine and an electronic control unit. The control system has the effects that a combustible gas concentration sensor and the single electronic control unit or an ECU are used for controlling gas fuel with any component; automatic changeover control over various kinds of gas fuel is achieved; hardware structures are simple, cost is low, and use and maintenance are convenient; meanwhile, when no sensor exists or starts, a user can select the type and the proportion of preset fuel or input fuel, the ECU calls a matched excess air coefficient and injection pulse width, and combustion is controlled.

Description

technical field [0001] The invention relates to an adaptive gas fuel control system, which can automatically identify and control internal combustion engine vehicles, ships, generator sets and the like of various gas fuel types. Background technique [0002] At present, the known fuel control system is constructed for specific fuel types, such as gasoline, diesel, methanol, natural gas, coke oven gas, biogas, pure methane gas, pure hydrogen, etc., and the electronic control unit or ECU controls the fuel according to specific programs and fixed parameters. Internal combustion engine or generator set. If the fuel type needs to be changed, in addition to the necessary hardware modification, it is also necessary to change or add a new electronic control unit to control the new fuel type. If it is necessary to switch between two fuels, a fuel switching switch needs to be added to manually select and switch the fuel and the control system. With the emergence and application of n...

Claims

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Application Information

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IPC IPC(8): F02D19/02
CPCY02T10/30
Inventor 毛志明
Owner 毛志明
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