CN112196691A - Piston air-compression type jet engine - Google Patents
Piston air-compression type jet engine Download PDFInfo
- Publication number
- CN112196691A CN112196691A CN202011070600.7A CN202011070600A CN112196691A CN 112196691 A CN112196691 A CN 112196691A CN 202011070600 A CN202011070600 A CN 202011070600A CN 112196691 A CN112196691 A CN 112196691A
- Authority
- CN
- China
- Prior art keywords
- air
- combustion chamber
- piston
- turbine
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007906 compression Methods 0.000 title claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 16
- 239000002737 fuel gas Substances 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 239000000295 fuel oil Substances 0.000 abstract description 11
- 238000004200 deflagration Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention relates to a piston air compression type jet engine which is composed of a piston air compressor, a combustion chamber, a water wheel type turbine, a jet pipe and the like, wherein the piston air compressor is used for air inlet, compression and exhaust, compressed air is transmitted into the combustion chamber through a one-way air valve, fuel oil gas is sprayed into the combustion chamber, the fuel oil gas and air are mixed and then ignited, the mixture of the fuel oil gas and the air in the combustion chamber is ignited to finish deflagration energy to output power by jet thrust, and part of the jet thrust drives the water wheel type turbine to rotate and convert into shaft power output and finish the whole working cycle when the water wheel type turbine arranged between the combustion chamber and the jet pipe finishes the jet thrust to output the power.
Description
The technical field is as follows: the invention relates to a piston air compression type jet engine, which is a device for outputting power by applying work to fuel combustion.
Background art: conventionally, known engines include piston type, delta rotor type, and turbine type. The piston engine is driven by fuel oil to do reciprocating linear motion in the cylinder by combustion in the combustion chamber, and then the reciprocating motion is converted into crankshaft rotary motion by the connecting rod and the crankshaft to output the power of the shaft. The expansion gas generated in the cylinder by the fuel oil of the piston engine can not output jet thrust, and has the defects of large volume, low efficiency, severe vibration and noise generated by parts of a distributor and a crankshaft connecting rod mechanism in the working process and the like; the triangular rotor type engine pushes the triangular rotor in the cocoon-shaped shell to rotate in a spinning wheel line by burning fuel oil, and a large gear which is connected with the triangular rotor and sleeved on the outer edge of a main shaft makes eccentric motion to drive a small gear on the main shaft to rotate and do work to output shaft power; the turbine engine outputs power by the cooperative work of a compressor, a combustion chamber and a turbine, the turbine engine can output power in a jet thrust and shaft power mode by driving a turbine to rotate through expanded gas combusted in the combustion chamber, but the thermodynamic efficiency of the turbine engine is low, so the output power is compensated and increased by means of increasing the rotating speed of the compressor or increasing the number of impeller stages to improve the boost ratio or greatly injecting fuel oil, improving the temperature in front of the turbine to improve the thrust-weight ratio and the like, and the defects of complex structure, large volume, low working stability, high oil consumption, high mechanical manufacturing difficulty and the like of various parts under extremely severe conditions are derived.
The invention content is as follows: the invention relates to a piston compressed air jet engine, which adopts the working mode that the jet thrust is used as the power by the combustion energy generated by the mixed combustion of fuel oil and air in a combustion cylinder, and simultaneously the jet thrust is converted into the shaft power for output. The piston air-compression jet engine has the characteristics of large output power, simple structure, stable and smooth work and wide application range.
The technical scheme adopted by the invention for solving the technical problems is as follows: the piston air compressor is used for bearing air inlet, compression and exhaust work, the compressed air is transmitted into the combustion chamber through the one-way air valve, fuel gas is sprayed into the combustion chamber, the fuel gas and the air are mixed and then ignited, the mixture of the fuel gas and the air in the combustion chamber is ignited to finish deflagration energy to output power by jet thrust, and the water wheel type turbine arranged between the combustion chamber and the spray pipe completes jet thrust output power and simultaneously drives the water wheel type turbine to rotate by partial jet thrust to convert into shaft power output and finish the whole working cycle.
The invention achieves the aim by the following method: the piston compressor is composed of a cylinder body, a piston ring, a crankshaft, a connecting rod, a one-way air inlet valve, a one-way exhaust valve and the like. The method is characterized in that: the one-way air inlet valve and the one-way exhaust valve work separately, when the piston in the cylinder moves to the top dead center, the exhaust valve is closed, when the piston starts to move downwards, the air inlet valve opens for air inlet due to the negative pressure state in the cylinder, when the piston moves downwards to the bottom dead center, the air inlet valve is closed; when the piston starts to move upwards, the exhaust valve is opened to exhaust because the air pressure in the cylinder is in a positive pressure state, when the piston moves upwards to the top dead center, the exhaust work is finished, the exhaust valve is closed, and in the period of one reciprocating motion of the piston in the piston type air compressor, the air compressor finishes one air suction and one exhaust work. Air exhausted from the exhaust pipe enters the mixing head at the bottom end of the combustion chamber through a plurality of shunt pipes, the mixing head is provided with small holes and is connected with an oil-gas pipe, the air entering from the shunt pipes is mixed with fuel oil gas at the mixing head and then flows into the combustion chamber, and the air-gas mixture in the combustion chamber is ignited by a spark plug to rapidly deflagrate to generate expansion gas which is sprayed out from the spray pipe to generate jet thrust. A waterwheel type turbine is arranged between the combustion chamber and the spray pipe, and when the expansion gas generated in the combustion chamber is sprayed out from the spray pipe to generate jet thrust, partial energy of the jet thrust acts on impeller blades of the waterwheel type turbine to be converted into shaft power to drive the piston type compressor to work.
In the working process, the piston air compression type jet engine, the combustion of the oil-gas mixture in the combustion chamber is a pulse combustion process, the detonation gas generated by the combustion completes power output from the spray pipe by pulse thrust, the frequency of the pulse is related to the operation period of the piston, and the working frequency of the pulse jet output can be controlled by controlling the operation period of the piston.
In the present invention, the solution to increase the volume of air entering the combustion chamber is: the radius of the inner wall of the air cylinder of the piston compressor is increased, the stroke length of the piston in operation is increased, and the operating frequency of the piston in operation is increased.
Description of the drawings:
FIG. 1 is a schematic diagram of the longitudinal section structure of a piston-compressed air jet engine according to the present invention
FIG. 2 is a schematic view of the longitudinal section A1-A in FIG. 1
The specific implementation mode is as follows:
a piston-compressed air jet engine: the piston type air compressor (8) is composed of a cylinder body (1), a piston (2), a piston ring (3), a crankshaft (4), a connecting rod (5), a one-way air inlet valve (6), a one-way exhaust valve (7) and the like to perform air inlet and exhaust on air, compressed air is transmitted to a gas distribution cylinder (10) through a one-way air valve exhaust pipe (9), then is distributed through a distribution pipe (11), and is mixed with fuel oil gas sprayed from an oil-gas pipe with an opening at the front end of a mixing head (12) and sprayed into a combustion chamber (13), the fuel oil gas is ignited and deflagrated through a spark plug, and the deflagrated gas pushes a water wheel type turbine (15) to rotate in a spray pipe (14) to do work and then is discharged from the spray pipe (14) by taking jet thrust as power. The waterwheel type turbine (15) is provided with two shaft output ends, wherein the output ends are connected with the crankshaft (4) through the linker (16) to enable the piston type compressor to work, and the output end of the other shaft is connected with the magneto and is converted into electric power to supply the electric appliance to work.
The piston air compression type jet engine in the embodiment has the advantages of simple structure, stable and reliable work and the like. The relative operating efficiency of a piston-compressed air jet engine can be achieved by adjusting the combustion chamber volume and the cylinder volume and the combustion chamber operating frequency.
Claims (3)
1. The invention relates to a piston air compression type turbojet engine, which is characterized in that a piston air compressor is used for air inlet, compression and exhaust, compressed air is transmitted into a combustion chamber through a one-way air valve, fuel gas is sprayed into the combustion chamber, the fuel gas and air are mixed and then ignited, the mixture of the fuel gas and the air in the combustion chamber is ignited, power is output by jet thrust, and a part of the jet thrust drives a water wheel type turbine to rotate and is converted into shaft power to be output.
2. The invention is characterized in that the water wheel type turbine is driven to rotate by the power jet generated by fuel combustion as recited in claim 1, therefore, the design of the connection between the piston compressor and the turbine and the shape, combination mode and power transmission principle of the parts are one of the essential points claimed in the invention, such as (4) a crankshaft, (5) a connecting rod, (16) a linker, (15) the water wheel type turbine and the like.
3. As described in claim 1, the waterwheel turbine performs shaft rotation, and the connection and structure of the matched power conversion cavity and the related power transmission device and gas inlet and exhaust device designed by the invention as shown in the drawing (10) to the gas cylinder, (11) the shunt pipe, (7) the one-way exhaust valve, (12) the mixing head, (13) the combustion chamber, (15) the waterwheel turbine, (14) the nozzle and the like are one of the essential points claimed by the invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011070600.7A CN112196691A (en) | 2020-10-14 | 2020-10-14 | Piston air-compression type jet engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011070600.7A CN112196691A (en) | 2020-10-14 | 2020-10-14 | Piston air-compression type jet engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112196691A true CN112196691A (en) | 2021-01-08 |
Family
ID=74013627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011070600.7A Pending CN112196691A (en) | 2020-10-14 | 2020-10-14 | Piston air-compression type jet engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112196691A (en) |
-
2020
- 2020-10-14 CN CN202011070600.7A patent/CN112196691A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210108 |
|
| WD01 | Invention patent application deemed withdrawn after publication |