CN218542434U - Aviation heavy oil piston engine carburetor heating device - Google Patents
Aviation heavy oil piston engine carburetor heating device Download PDFInfo
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- CN218542434U CN218542434U CN202223093510.7U CN202223093510U CN218542434U CN 218542434 U CN218542434 U CN 218542434U CN 202223093510 U CN202223093510 U CN 202223093510U CN 218542434 U CN218542434 U CN 218542434U
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Abstract
The carburetor heating device of the aviation heavy oil piston engine comprises a carburetor, wherein an oil chamber is formed in the carburetor, an electric heating device is fixedly connected to the oil chamber of the carburetor, a temperature measuring device is further fixedly connected to the oil chamber of the carburetor, the temperature measuring device is connected to a controller, and the controller controls the electric heating device. The heating device is adopted on the carburetor, and is matched with preheating of the engine during starting, so that the purpose that the low-power aviation piston engine takes heavy oil as fuel under the condition that the carburetor is adopted can be realized.
Description
Technical Field
The utility model relates to an aviation piston engine, in particular to aviation piston engine carburetor heating device belongs to aeroengine technical field.
Background
The low-power aviation piston engine is a common engine on the existing unmanned aerial vehicle, the engine is improved from an aeromodelling engine and a general engine, the engine adopts a two-stroke form, the two-stroke engine is simple in structure, few in moving parts, high in power density per liter and small in weight, and the light weight and high power-weight ratio requirements of an unmanned aerial vehicle power system are met. At present, gasoline is used as fuel, the application of the unmanned aerial vehicle in some occasions is limited due to the risk of engine crash explosion and fire, such as forest fire prevention, crowd-intensive execution of related tasks and the like, in order to overcome the defects, heavy oil is developed and used as fuel for the unmanned aerial vehicle, the advantages of the heavy oil in the aspects of safety, economy and the like are well known, the difficulties of using the heavy oil as fuel for a low-power aviation piston engine are known to be caused by large viscosity and poor atomization effect of the heavy oil, and the applicant also develops a deeper application type of the heavy oil in the development of the low-power aviation piston engine, for example, in a heating control system of a Chinese patent No. 202121812456X heavy oil aviation piston engine and a Chinese patent No. 2021218124358 (an aviation engine oil inlet preheating device) aiming at the heavy oil, the related part of the engine is respectively designed for the heavy oil, after the two technical schemes are combined, the heavy oil can be used as fuel for the electric injection engine, but in the popularization and application of the electric injection engine, the cost of the heavy oil injection engine is too high, the heavy oil injection engine is 170 of a certain domestic company, and the unmanned aerial vehicle also becomes a great obstacle of the unmanned aerial vehicle, and the unmanned aerial vehicle is manufactured and the unmanned aerial vehicle is high-injection engine.
The traditional carburetor piston engine is low in price, but the current carburetor piston engine is difficult to realize by adopting heavy oil as fuel. In internet literature, "heavy oil technology development of low-power aviation piston engines" (aviation fuel power; 9 months and 9 days in 2022), a way of burning heavy oil by using a low-power aviation piston engine of a carburetor at present is introduced in more detail, wherein one way is to improve the existing carburetor, the existing carburetor improvement way still adopts carburetor oil supply, but the design of an air inlet system, the carburetor and an ignition system is changed according to the characteristics of heavy oil fuel, and a preheating system for auxiliary starting is added. A typical system is the heavy oil engine scheme of 3W company, germany. In order to realize reliable atomization and combustion organization of heavy oil, a heavy oil engine adopts a plurality of improvement measures, which are as follows: the air inlet system adopts an accelerating pipe; the pump membrane type carburetor is improved, and the working mode is close to that of a mechanical injection system; preheating a crankcase; the compression ratio is reduced; starting to add a glow plug; the ignition system is changed, the energy is increased, after heavy oil is adopted, the design of the engine is changed greatly, and the changed places are more, so that the heavy oil piston engine still adopting a carburetor oil supply mode has more changed factors, more added accessories, more complex design and more difficult improvement.
Therefore, how to adopt the carburetor to realize the simple structure and low-cost manufacture of the aviation heavy oil piston engine is an unsolved technical problem.
Disclosure of Invention
An object of the utility model is to provide an aviation heavy oil piston engine carburetor heating device to the above-mentioned problem that exists in present low-power aviation piston engine used the heavy oil as the fuel.
In order to realize the purpose of the utility model, the following technical proposal is adopted: the carburetor heating device of the aviation heavy oil piston engine comprises a carburetor, wherein an oil chamber is formed in the carburetor, an electric heating device is fixedly connected to the oil chamber of the carburetor, a temperature measuring device is further fixedly connected to the oil chamber of the carburetor, the temperature measuring device is connected to a controller, and the controller controls the electric heating device.
Further, the method comprises the following steps of; the electric heating device is an electric heating wire or an electric heating sheet, and is fixedly wound on an oil chamber of the carburetor when the electric heating wire is adopted, and is fixedly attached to the oil chamber of the carburetor when the electric heating sheet is adopted.
Further, the method comprises the following steps of; the electric heating device is a heating block, at least two holes are formed in the heating block, a temperature control switch is fixedly arranged in one hole, an electric heating rod is arranged in the other hole, the temperature control switch is connected in a heating circuit of the electric heating rod, and the heating block is fixedly connected to the bottom surface of a carburetor oil chamber.
Further, the method comprises the following steps of; the heating block penetrates through the bottom surface of the carburetor oil chamber and is in contact with fuel in the carburetor oil chamber.
Further, the method comprises the following steps of; the bottom surface of the carburetor or the heating block is provided with an oil drain hole communicated with the oil chamber, and the oil drain hole is provided with an oil drain switch.
The utility model discloses an actively beneficial technological effect lies in: through tests, the heating device is adopted on the carburetor, and is matched with preheating during engine starting, so that the purpose that the low-power aviation piston engine takes heavy oil as fuel under the condition that the carburetor is adopted can be achieved.
Drawings
Fig. 1 is a schematic view of a first embodiment of the present invention.
Fig. 2 is a schematic view of a second embodiment of the present invention.
Fig. 3 is a schematic view of a third embodiment of the present invention.
Detailed Description
In order to explain the utility model more fully, the utility model provides an implementation example. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.
The invention is explained in further detail with reference to the drawings, in which the reference symbols refer to: 1: a carburetor; 2: an oil chamber; 3: an electric heating wire; 4: an electrical heating sheet; 5: an electrical heating block; 6: an electrical heating rod; 7: a temperature control switch; 8: an oil drain hole; 9: an oil drain switch.
The first embodiment:
as shown in the attached figure 1, the carburetor heating device of the aviation heavy oil piston engine comprises a carburetor 1, wherein an oil chamber 2 is arranged on the carburetor, an electric heating wire 3 is fixedly wound on the oil chamber 2 of the carburetor, a temperature sensor is arranged on the carburetor, the temperature sensor can adopt a temperature control switch, and the temperature control switch is connected in a heating loop of the electric heating wire.
The second embodiment:
different from the first embodiment, the electric heating sheet 4 is used for heating, and the electric heating sheet 4 is fixedly attached to an oil chamber of the carburetor.
The third embodiment:
the difference from the first embodiment is that the electric heating device adopts an electric heating block 5, the electric heating block is made of good heat conductor such as aluminum alloy, two holes are arranged on the heating block, a temperature control switch 7 is fixedly arranged in one hole, an electric heating rod 6 is arranged in the other hole, the temperature control switch is connected in a heating electric circuit of the electric heating rod, the heating block penetrates through the bottom surface of the carburetor oil chamber and then is fixedly connected to the bottom surface of the carburetor oil chamber, and the heating block is in contact with fuel in the carburetor oil chamber. An oil drain hole 8 communicated with the oil chamber is arranged on the bottom surface of the carburetor or the heating block, and an oil drain switch 9 is arranged on the oil drain hole. The oil drain switch can adopt a screw-type plug. The oil discharge switch can discharge oil in the carburetor.
The heating device of the first embodiment and the second embodiment is adopted, a nibbi carburetor is adopted, the heating temperature of a temperature control switch is controlled at 90 ℃, a 170cc piston aviation two-stroke engine is adopted, kerosene is adopted as fuel, a Chinese patent No. 202121812456X heavy oil aviation piston engine heating control system is adopted for the engine, the engine is preheated to be more than 80 ℃ before starting, unheated kerosene is directly heated in the carburetor to enter the engine for starting and smoothly starting, the engine runs normally at high speed, low speed and idling speed, and the unmanned helicopter is driven to fly stably.
By adopting the heating device of the third embodiment, a nibbi carburetor is adopted, the heating temperature of a temperature control switch is controlled to be 80-85 ℃, a 170cc piston aviation two-stroke engine is adopted, kerosene is adopted as fuel, the engine adopts a Chinese patent No. 202121812456X heavy oil aviation piston engine heating control system, the engine is preheated to be more than 80 ℃ before starting, unheated kerosene is adopted to enter the carburetor for heating and then enters the engine for starting, the engine is started smoothly, the engine runs normally at high speed, low speed and idling speed, and the unmanned helicopter is driven to fly normally.
Through measurement and calculation, compared with the price of nearly 30 ten thousand of the current electric injection heavy oil engine, the cost of the heavy oil engine manufactured by the scheme is not one tenth of the cost of the current electric injection heavy oil engine, and the market barrier caused by high price is eliminated.
After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention all belong to the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples illustrated in the specification.
Claims (5)
1. Aviation heavy oil piston engine carburetor heating device, including the carburetor, the carburetor on have the grease chamber, its characterized in that: the oil chamber of the carburetor is fixedly connected with an electric heating device, the oil chamber of the carburetor is also fixedly connected with a temperature measuring device, the temperature measuring device is connected to a controller, and the controller controls the electric heating device.
2. The aviation heavy oil piston engine carburetor heating device of claim 1, wherein: the electric heating device is an electric heating wire or an electric heating sheet, and is fixedly wound on an oil chamber of the carburetor when the electric heating wire is adopted, and is fixedly attached to the oil chamber of the carburetor when the electric heating sheet is adopted.
3. The aviation heavy oil piston engine carburetor heating device of claim 1, wherein: the electric heating device is a heating block, at least two holes are formed in the heating block, a temperature control switch is fixedly arranged in one hole, an electric heating rod is arranged in the other hole, the temperature control switch is connected in a heating circuit of the electric heating rod, and the heating block is fixedly connected to the bottom surface of a carburetor oil chamber.
4. The aviation heavy oil piston engine carburetor heating device of claim 3, wherein: the heating block penetrates through the bottom surface of the carburetor oil chamber and is in contact with fuel in the carburetor oil chamber.
5. The aviation heavy oil piston engine carburetor heating device of claim 3, wherein: the bottom surface of the carburetor or the heating block is provided with an oil drain hole communicated with the oil chamber, and the oil drain hole is provided with an oil drain switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223093510.7U CN218542434U (en) | 2022-11-22 | 2022-11-22 | Aviation heavy oil piston engine carburetor heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223093510.7U CN218542434U (en) | 2022-11-22 | 2022-11-22 | Aviation heavy oil piston engine carburetor heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218542434U true CN218542434U (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223093510.7U Active CN218542434U (en) | 2022-11-22 | 2022-11-22 | Aviation heavy oil piston engine carburetor heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218542434U (en) |
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2022
- 2022-11-22 CN CN202223093510.7U patent/CN218542434U/en active Active
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