CN203271950U - Piston punching self-ignition pulse jet engine - Google Patents
Piston punching self-ignition pulse jet engine Download PDFInfo
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- CN203271950U CN203271950U CN 201320073845 CN201320073845U CN203271950U CN 203271950 U CN203271950 U CN 203271950U CN 201320073845 CN201320073845 CN 201320073845 CN 201320073845 U CN201320073845 U CN 201320073845U CN 203271950 U CN203271950 U CN 203271950U
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Abstract
The utility model provides a piston punching self-ignition pulse jet engine. The engine is provided with a step free piston in an engine body so as to form a pre-combustion chamber and a main combustion chamber; the front end of the main combustion chamber is provided with a nozzle provided with a pressure control switch; a fuel pipe and a low pressure air pipe on one side are respectively communicated with the pre-combustion chamber and the main combustion chamber through air inlets; and an air passage is arranged on the inner side of the front end of a cylinder body. In the above setting, the cylinder body can be divided into two combustion chambers, pre-combustion of the pre-combustion chamber is controlled through one or various manners of air pressure, mechanical or sparking plug ignition and photoelectrical or electromagnetic wave, and then implosion is performed on the main combustion chamber by the step free piston, so that a high temperature and high pressure gas punching nozzle is formed, and thrust force is generated without power turbine. The structure can be switched into a rocket running mode, and is an ideal dual mode high efficiency engine of aerospace and rocket fields. Various fuels can be used, and the structure is simplified and combined with an existing engine to form a novel engine.
Description
Technical field
The utility model relates to a kind of motor, specifically a kind of piston punching press spontaneous combustion pulse jet engine.
Background technique
The various motors that use now are all oil, cyclostrophic to be turned to the function of power.The shortcomings such as it is low that the while also all exists fuel efficiency, and specific power is little and serious pollution of atmosphere.A kind of high efficiency, large torque, low oil consumption, low emission are trend and people's dream for many years of alternate-engine development; At the current energy progressively under exhausted situation, the efficient low-consume of motor is required more urgent, particularly Aeronautics and Astronautics and rocket etc. are more urgent to the requirement of big thrust loading, high efficience motor in the civil and military field.
Summary of the invention
The purpose of this utility model be to satisfy current aerospace in the urgent need to, a kind of piston punching press spontaneous combustion pulse jet engine is provided, compare working medium density with several times to tens times and the whiff pressure of Geng Gao with the quick-fried motor that shakes.Simple for structure, lightweight, thrust weight ratio is large, specific impulse is large, the efficiency of cycle is high, etc. the appearance cycle efficiency be 0.47, the unit fuel consumption rate is low, operating range is wide, but zero-speed start, the Acceleration of starting performance is good.And as long as the pressurized gas oxygenant that can produce certain pressure is switched to the low-pressure gas dispensing controller has just become the rocket operating mode, also can replenish partial oxidation when oxygen is not enough and carry out mixed mode work; It is military and the new concept engine Aero-Space transport field.From supercharging (punching press of ladder free-piston) related (in turn successively) burning branch art.Efficiently solve especially the deficiency of present engine combustion branch art aspect, realized economic reliable gas boosting, oil gas burning fully efficiently is the desirable efficient environmental-protection engine burning branch art such as the replacement of traditional concept motor, navigation, Aeronautics and Astronautics, rocket.
The utility model comprises the body of motor, and the concrete scheme that adopts is as follows:
The technical purpose core is placed on above cylinder, a ladder free-piston namely is installed in the cylinder body of cylinder, make thus cylinder body form two firing chambers, namely one first fires firing chamber and a main combustion chamber, and arrange one with the spout of pressure control switch in the lower end of main combustion chamber, in cylinder body one side, fuel pipe and low pressure gas pipe are set, formerly fire air inlet of combustion chamber and main combustion chamber suction port, safety check and fuel oil supply device all be installed and controlled by the low-pressure gas dispensing controller, in the inboard, lower end of cylinder body, air vent being set simultaneously.
Technique scheme comprises: the front end at low pressure gas pipe is provided with a gas dispensing controller.
Magnetic control piece of suit on the ladder free-piston in the cylinder body outside, this magnetic control piece are positioned at front end in the time of can allowing the work of ladder free-piston can inhale the gas initial pressure that the firing chamber is first fired in assurance mutually with cylinder body.
The utility model is by the setting of above-mentioned a kind of like this scheme, because the cylinder body with cylinder is separated into two firing chambers by the ladder free-piston, and respectively establish a suction port at the side of two firing chambers, during working state, first give first to fire to be full of a certain amount of fuel-air mixture in the firing chamber, then give oil-filled gas mixed gas in main combustion chamber; Owing to acting on the useful area S1 that first the fires piston of combustion chamber useful area S2 (S1/S2=1/3-3/4 left and right) less than the main combustion chamber piston, the gas that therefore fills lower pressure to main combustion chamber first fires fuel-air mixture in the firing chamber and can reach and light or the condition of compression ignite namely plays the effect of gas compressor supercharging.Lighted or compression ignite in case first fire the firing chamber, will be by the fuel-air mixture in ladder free-piston compression ignite main combustion chamber; Open spout ejection gas after the main combustion chamber internal pressure surpasses setting value, complete a cyclic process.When circulation reaches certain number of times, greater than 80 hertz, produce the thrust that continues.
Due to more than the pressure in main combustion chamber can reach 15-20MP, jet flow working medium can directly provide thrust and need not power turbine, therefore motor requires to decrease to front end gas compression ratio, designs simplification, lightweight, thrust weight ratio is large, specific impulse is large, the efficiency of cycle is high, etc. the appearance cycle efficiency be 0.47, the unit fuel consumption rate is low, operating range is wide, but zero-speed starts, and the Acceleration of starting performance is good.And as long as the pressurized gas oxygenant that can produce certain pressure is switched to the low-pressure gas dispensing controller has just become the rocket operating mode, also can replenish partial oxidation when oxygen is not enough and carry out mixed mode work; And start and stop very simple, can repeatedly start and stop.Fast due to spontaneous combustion speed, efficient is high, can realize the oxygen enrichment lean combustion, combustion temperature is low, thereby pollutant is low.And can use the pluralities of fuels such as gasoline, diesel oil, alcohols, hydrogen, natural gas, and in many ways solve energy problem, ensure energy security.Also can spray into different fuel oils two firing chambers, to solve the shortcoming of single fuel oil.Impact force reduces, and the ladder piston is a free-piston substantially, to a certain degree can play buffer function; Dividing secondary combustion also to greatly reduce impacts and noise.Can be opposed in twos during a plurality of motor combination, further reduce vibration.Simplified structure and miniaturization can be made up with existing many types of general purpose engine, consist of the new work engine extensive use energy-efficient, that exhaust emissions is low.Also can make up with present gas turbine, serve as the firing chamber part, both can reduce the gas compression ratio of front end gas compressor, simplified structure has improved again fuel efficiency and power.When main combustion chamber oil not, change and first fire exhaust outlet of combustion chamber, just become a high-pressure compressor.Therefore efficiently solve the deficiency of present engine combustion branch art aspect, realized economic reliable gas boosting, oil gas burning fully efficiently.It is the desirable new high efficiency environment-protective motor burning branch art such as navigation, Aeronautics and Astronautics, rocket.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present utility model.
In figure: 1, cylinder body, 2, the ladder free-piston, 3, first fire the firing chamber, 4, main combustion chamber, 5, spout, 6, pressure control switch, 7, fuel pipe, 8, suction port, 9, low pressure gas pipe, 10, the gas dispensing controller, 11, air vent, 12, the magnetic control piece.
Embodiment
Shown in Figure 1: motor is equipped with a ladder free-piston 2 in body 1, make body 1 consist of one and first fire firing chamber 3 and a main combustion chamber 4, on the cylinder body 1 of the front end of main combustion chamber 4, a spout 5 that pressure control switch 6 is housed is arranged, cylinder body 1 one sides be provided with fuel pipe 7 and low pressure gas pipe 9 all by suction port 8 respectively with first fire firing chamber 3 and main combustion chamber 4 communicates, be provided with air vent 11 in the front end inboard of cylinder body 1.Front end at low pressure gas pipe 9 is provided with a gas dispensing controller 10.Be set with magnetic control piece 12 on the ladder free-piston 2 in cylinder body 1 outside.
In the utility model working state situation: first give and first fire in the firing chamber 3 and be full of a certain amount of fuel-air mixture, give again the interior oil-filled gas mixed gas of main combustion chamber 4, owing to acting on the useful area S1 that first the fires firing chamber 3 pistons useful area S2 less than main combustion chamber 4 pistons, (about S1/S2=1/3-3/4), the gas of therefore filling lower pressure for main combustion chamber 4 first fire the interior fuel-air mixture in firing chamber 3 and can reach and light or the condition (playing gas compressor) of compression ignite; Lighted or compression ignite in case first fire firing chamber 3, will be by the fuel-air mixture in ladder free-piston 2 compression ignite main combustion chambers 4.Open spout 5 ejection gases after the main combustion chamber internal pressure surpasses setting value, complete a cyclic process.When reaching (greater than 80 hertz), circulation produces the thrust that continues.
Claims (3)
1. piston punching press spontaneous combustion pulse jet engine, the body (1) that comprises motor, it is characterized in that: described motor is equipped with a ladder free-piston (2) in body (1), make body (1) consist of one and first fire firing chamber (3) and a main combustion chamber (4), on the cylinder body (1) of the front end of main combustion chamber (4), a spout (5) that pressure control switch (6) are housed is arranged, cylinder body (1) one side be provided with fuel pipe (7) and low pressure gas pipe (9) all by suction port (8) respectively with first fire firing chamber (3) and main combustion chamber (4) communicates, front end inboard at cylinder body (1) is provided with air vent (11).
2. piston punching press spontaneous combustion pulse jet engine according to claim 1, it is characterized in that: the front end at low pressure gas pipe (9) is provided with a gas dispensing controller (10).
3. piston punching press spontaneous combustion pulse jet engine according to claim 1, is characterized in that: be set with magnetic control piece (12) on the ladder free-piston (2) in cylinder body (1) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320073845 CN203271950U (en) | 2013-01-30 | 2013-01-30 | Piston punching self-ignition pulse jet engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320073845 CN203271950U (en) | 2013-01-30 | 2013-01-30 | Piston punching self-ignition pulse jet engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203271950U true CN203271950U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320073845 Expired - Fee Related CN203271950U (en) | 2013-01-30 | 2013-01-30 | Piston punching self-ignition pulse jet engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203271950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057993A (en) * | 2018-07-25 | 2018-12-21 | 湖南云顶智能科技有限公司 | A kind of plasma spray burner of belt electrode refrigerating function |
-
2013
- 2013-01-30 CN CN 201320073845 patent/CN203271950U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057993A (en) * | 2018-07-25 | 2018-12-21 | 湖南云顶智能科技有限公司 | A kind of plasma spray burner of belt electrode refrigerating function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20200130 |