CN214887409U - Engine liquid oxygen supply system - Google Patents
Engine liquid oxygen supply system Download PDFInfo
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- CN214887409U CN214887409U CN202121135019.9U CN202121135019U CN214887409U CN 214887409 U CN214887409 U CN 214887409U CN 202121135019 U CN202121135019 U CN 202121135019U CN 214887409 U CN214887409 U CN 214887409U
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- liquid oxygen
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- oxygen supply
- pipeline
- oxygen
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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
- Y02T10/12—Improving ICE efficiencies
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Abstract
A liquid oxygen supply system of an engine comprises a liquid oxygen source, an oxygen supply pipeline, a fuel conveying pipeline, a mixing pipeline, a liquid oxygen flow regulating component, an oxygen sensor, a temperature sensor and a control device; the liquid oxygen source is communicated with the oxygen supply pipeline, and the liquid oxygen flow regulating part is arranged on the oxygen supply pipeline; one end of the mixing pipeline is respectively communicated with the oxygen supply pipeline and the fuel delivery pipeline, and the other end of the mixing pipeline is communicated to a fuel injection element of the engine combustion chamber; the oxygen sensor is used for detecting the concentration of oxygen in engine exhaust, the temperature sensor is used for detecting the temperature of an engine combustion chamber, the output end of the oxygen sensor and the output end of the temperature sensor are respectively connected with the signal input end of the control device, and the control output end of the control device is connected with the control input end of the liquid oxygen flow regulating component. The utility model discloses can improve the combustion efficiency of various engines, reduce the pollutant that the engine discharged.
Description
Technical Field
The utility model relates to an engine technology especially relates to liquid oxygen feed system of engine.
Background
With the rapid development of industrial technology and the continuous improvement of living standard of people, the number of various vehicles is leaping forward. As a big population country, China is more famous and popular all over the world in terms of the number of vehicles, but the number also has negative influence on the air quality and the energy conservation because harmful gases such as carbon monoxide (CO), Hydrocarbon (HC) and Nitrogen Oxide (NO) generated after combustion of an engineXSulfur dioxide SO2And PM2.5 dust and the like are discharged into the air in a large amount, so that the environment is polluted, and the pollution is also one of important reasons for causing haze weather.
At present, although various engines have great technical progress in the aspects of energy conservation, environmental protection and the like, the improvement of the fuel combustion efficiency is still not ideal enough, and the low fuel combustion efficiency is an important factor causing unsatisfactory exhaust emission indexes.
Disclosure of Invention
The utility model aims to solve the technical problem that an engine liquid oxygen feed system is provided, it can improve the combustion efficiency of various engines, reduces the pollutant that the engine discharged.
The utility model provides an engine liquid oxygen supply system of embodiment, including liquid oxygen source, oxygen supply pipeline, fuel conveying pipeline, mixing line, liquid oxygen flow control part, oxygen sensor, temperature sensor and controlling means; the liquid oxygen source is communicated with the oxygen supply pipeline, and the liquid oxygen flow regulating part is arranged on the oxygen supply pipeline; one end of the mixing pipeline is respectively communicated with the oxygen supply pipeline and the fuel delivery pipeline, and the other end of the mixing pipeline is communicated to a fuel injection element of the engine combustion chamber; the oxygen sensor is used for detecting the concentration of oxygen in engine exhaust, the temperature sensor is used for detecting the temperature of an engine combustion chamber, the output end of the oxygen sensor and the output end of the temperature sensor are respectively connected with the signal input end of the control device, and the control output end of the control device is connected with the control input end of the liquid oxygen flow regulating component.
The utility model discloses at least, have following advantage:
the liquid oxygen supply system of the engine of the embodiment adopts a liquid oxygen combustion-supporting technology, greatly improves the combustion efficiency of the engine, and simultaneously reduces the emission of pollutants.
Drawings
Fig. 1 shows a schematic diagram of an engine liquid oxygen supply system according to an embodiment of the present invention.
Fig. 2 shows a control schematic block diagram of an engine liquid oxygen supply system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Please refer to fig. 1 and fig. 2. According to the utility model discloses an engine liquid oxygen feed system includes liquid oxygen source 1, oxygen supply line 21, fuel conveying pipeline 22, mixing line 23, liquid oxygen flow control part 3, check valve 4, oxygen sensor 51, temperature sensor 52, pressure sensor 53 and controlling means 6.
The liquid oxygen source 1 is communicated with an oxygen supply pipeline 21, and the liquid oxygen flow regulating component 3 is arranged on the oxygen supply pipeline 21. Optionally, the liquid oxygen source 1 is a liquid oxygen cylinder provided by a high pressure vessel factory, and an outlet of the liquid oxygen cylinder is provided with a pressure reducing valve. The liquid oxygen flow regulating component 3 is a flow regulating valve or a micro pump.
The check valve 4 is provided between the outlet of the liquid oxygen source 1 and the inlet of the liquid oxygen flow rate adjusting member 3, and the check valve 4 allows only the liquid oxygen to flow from the liquid oxygen source 1 to the liquid oxygen flow rate adjusting member 3 without allowing the liquid oxygen to flow backward.
One end of the mixing pipe 23 is communicated with the oxygen supply pipe 21 and the fuel delivery pipe 22 respectively, and the other end is communicated to the fuel injection element 9 of the engine combustion chamber, and the liquid oxygen and the fuel are mixed in the mixing pipe 23 and then are delivered to the fuel injection element 9 of the engine combustion chamber together. The fuel in the fuel delivery line 22 is gasoline, diesel or gas depending on the type of engine. For gasoline or diesel engines, the fuel injection element 9 is a high-pressure injector. In this embodiment, one end of the mixing pipeline 23 is respectively communicated with the oxygen supply pipeline 21 and the fuel delivery pipeline 22 through the tee joint 7, and the tee joint 7 and the oxygen supply pipeline 21 can be made of stainless steel.
The oxygen sensor 51 is used to detect the concentration of oxygen in the engine exhaust, and the oxygen sensor 51 is typically provided in the exhaust pipe of the engine. The temperature sensor 52 is used to detect the temperature of the engine combustion chamber, and the pressure sensor 53 is used to detect the liquid oxygen pressure in the oxygen supply line 21. The output end of the oxygen sensor 51, the output end of the temperature sensor 52 and the output end of the pressure sensor 53 are respectively connected with the signal input end of the control device 6, and the control output end of the control device 6 is connected with the control input end of the liquid oxygen flow regulating component 3.
In this embodiment, the control device 6 is a single chip microcomputer. The control device 6 controls the liquid oxygen flow rate adjusting component 3 to adjust the flow rate of the liquid oxygen, so that the oxygen concentration detected by the oxygen sensor 51 is within a preset oxygen concentration range, the temperature detected by the temperature sensor 52 is within a preset temperature range, and the pressure detected by the pressure sensor 53 is within a preset pressure range. Thus, the temperature of the combustion chamber of the engine can be ensured to be the same as that of the prior art. For a gasoline engine, the liquid oxygen supply system of the engine of the embodiment does not change the combustion ratio (1: 1.47) of gasoline and air in the prior art, does not change the working voltage of a spark plug up to 1 ten thousand volts and the pressure of 5 MPa, and still keeps the temperature of the spark plug between 500 ℃ and 750 ℃. The temperature of the spark plug is too low, so that incomplete combustion is easily caused, the spark plug is easy to form carbon, even the spark plug is subjected to fire breaking, and if the temperature is higher than the temperature, pre-ignition is possible, so that the pre-ignition phenomenon is caused.
Although the pressure of the liquid oxygen cylinder can be controlled by a pressure reducing valve, the oxygen supply pressure varies greatly with the temperature, and the pressure affects the flow rate of the liquid oxygen. Therefore, in the present embodiment, the pressure sensor 53 for detecting the oxygen supply pressure is provided, and the liquid oxygen flow rate adjusting means 3 is adjusted according to the detection value of the pressure sensor 53, so that the oxygen supply pressure can be kept within a preset reasonable range, and cannot be too large or too small. In other embodiments, the insulating layer is disposed outside the liquid oxygen source 1, so that the operating temperature of the liquid oxygen source 1 does not change greatly due to the change of the external environment temperature, and the oxygen supply pressure of the liquid oxygen source 1 does not fluctuate greatly, and therefore, the pressure sensor 53 is not required to be disposed in this embodiment.
Furthermore, the oxygen supply line 21 is provided with a liquid oxygen nozzle at the end connected to the tee joint 7, and the fuel delivery line 22 is provided with a fuel nozzle at the end connected to the tee joint 7, so that the injection frequencies of the liquid oxygen and the fuel can be kept synchronous, and the aperture of the liquid oxygen nozzle is determined after experiments to determine the optimal proportion of the fuel supply.
The utility model discloses engine liquid oxygen feed system is applicable to various diesel oil, gasoline engine and gas engine that use on vehicles such as car, boats and ships, also is applicable to simultaneously and injects in the jar or the jar is sprayed outward. The liquid oxygen supply system of the engine of the embodiment adopts a liquid oxygen combustion-supporting technology, greatly improves the combustion efficiency of the engine, can save oil consumption for hundreds of kilometers, even can remove a turbocharging device, and can reduce the emission of pollutants of the engine.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A liquid oxygen supply system of an engine is characterized by comprising a liquid oxygen source, an oxygen supply pipeline, a fuel conveying pipeline, a mixing pipeline, a liquid oxygen flow regulating component, an oxygen sensor, a temperature sensor and a control device;
the liquid oxygen source is communicated with the oxygen supply pipeline, and the liquid oxygen flow regulating part is arranged on the oxygen supply pipeline;
one end of the mixing pipeline is respectively communicated with the oxygen supply pipeline and the fuel delivery pipeline, and the other end of the mixing pipeline is communicated to a fuel injection element of an engine combustion chamber;
the oxygen sensor is used for detecting the concentration of oxygen in engine exhaust, the temperature sensor is used for detecting the temperature of an engine combustion chamber, the output end of the oxygen sensor and the output end of the temperature sensor are respectively connected with the signal input end of the control device, and the control output end of the control device is connected with the control input end of the liquid oxygen flow regulating component.
2. The engine liquid oxygen supply system according to claim 1, comprising a pressure sensor for detecting the liquid oxygen pressure in the oxygen supply pipeline, wherein the output end of the pressure sensor is connected with the signal input end of the control device.
3. The engine liquid oxygen supply system according to claim 1, wherein one end of the mixing line is communicated with the oxygen supply line and the fuel delivery line, respectively, through a tee.
4. The engine liquid oxygen supply system according to claim 3, wherein the oxygen supply line is provided with a liquid oxygen nozzle at an end connected to the tee joint, and the fuel delivery line is provided with a fuel nozzle at an end connected to the tee joint.
5. The engine liquid oxygen supply system according to claim 1, wherein an insulating layer is provided outside the liquid oxygen source.
6. The engine liquid oxygen supply system according to claim 1 or 5, wherein the liquid oxygen source is a liquid oxygen cylinder, and an outlet of the liquid oxygen cylinder is provided with a pressure reducing valve.
7. The engine liquid oxygen supply system according to claim 1, wherein the liquid oxygen flow rate adjustment member is a flow rate adjustment valve or a micro pump.
8. The engine liquid oxygen supply system according to claim 1, wherein a check valve is provided between an outlet of the liquid oxygen source and an inlet of the liquid oxygen flow rate regulation member, the check valve allowing only liquid oxygen to flow from the liquid oxygen source to the liquid oxygen flow rate regulation member without being able to flow backward.
9. The engine liquid oxygen supply system according to claim 1, wherein the control device is a single chip microcomputer.
10. The engine liquid oxygen supply system according to claim 1, wherein the fuel in the fuel delivery line is gasoline, diesel or gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121135019.9U CN214887409U (en) | 2021-05-25 | 2021-05-25 | Engine liquid oxygen supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121135019.9U CN214887409U (en) | 2021-05-25 | 2021-05-25 | Engine liquid oxygen supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214887409U true CN214887409U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121135019.9U Active CN214887409U (en) | 2021-05-25 | 2021-05-25 | Engine liquid oxygen supply system |
Country Status (1)
| Country | Link |
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| CN (1) | CN214887409U (en) |
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2021
- 2021-05-25 CN CN202121135019.9U patent/CN214887409U/en active Active
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