CN205477877U - Unmanned helicopter engine of double -cylinder ejector pin formula four -stroke -cycle - Google Patents
Unmanned helicopter engine of double -cylinder ejector pin formula four -stroke -cycle Download PDFInfo
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- CN205477877U CN205477877U CN201620134657.1U CN201620134657U CN205477877U CN 205477877 U CN205477877 U CN 205477877U CN 201620134657 U CN201620134657 U CN 201620134657U CN 205477877 U CN205477877 U CN 205477877U
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Abstract
The utility model discloses an unmanned helicopter engine of double -cylinder ejector pin formula four -stroke -cycle includes: bent axle, crankcase, connecting rod, piston, piston pin, piston ring, cylinder, cylinder cap, (air) intake valve, exhaust valve valve fore -set, valve ejector pin, valve rocker, camshaft, intake pipe, carburetor, spark plug, crankshaft gear, camshaft gear, blast pipe. Duty cycle comprises intake stroke, pressure stroke, acting stroke and exhaust stroke. The engine adopted four -stroke work structuring, four independent duty cycle have to the burning is abundant, and to a great extent has reduced crops, operation hand, atmospheric pollution. Because this engine revolution 2 circle is a duty cycle (the engine of two strokes is 1 ring of duty cycle ), has reduced the burning number of times to calorific capacity also and then reduces, and the exhaust work of this engine has independent working stroke, and discharge pressure is great, so joinable layering room muffler carries out the amortization, so that the exhaust noise is very low.
Description
Technical field
The present invention relates to a kind of twin-tub post rod type four stroke depopulated helicopter electromotor, belong to unmanned air vehicle technique field.
Background technology
Modern agricultural development is rapid, the demand of agricultural depopulated helicopter is increasing, the dynamic depopulated helicopter electromotor many employings two stroke blend gasoline electromotor of oil in the past, this type of engine fuel consumes greatly, exhaust emission is big, caloric value is big, noise is big, service life is low, fault rate is high.The fuel of particularly two stroke gasoline engines is that gasoline, machine oil fuel combination burn, owing to burning is insufficient, so the gaseous contamination of discharge is the biggest, crops are caused secondary pollution, also the health of operator is caused damage, pollution to air is the most serious, so being badly in need of design one in depopulated helicopter engine art to can solve the problem that problems described above, with low cost and environmental protection again electromotor.
Summary of the invention
In order to solve the problem of above-mentioned existence, the invention provides a kind of twin-tub post rod type four stroke depopulated helicopter electromotor.Present invention employs following technical proposal:
The power producer of depopulated helicopter is exactly electromotor, and the power of electromotor then derives from cylinder internal.Engine cylinder is exactly one and the interior place that can be converted into power of fuel can be simply interpreted as, fuel produces immense pressure at combustor inner cylinder and promotes piston up-down, by connecting rod, power is passed to bent axle, is eventually converted into rotary power output.
Twin-tub post rod type four stroke depopulated helicopter electromotor includes: bent axle, crankcase, connecting rod, piston, piston pin, piston ring, cylinder, cylinder cap, inlet valve, exhaust valve valve fore-set, valve stem, valve rocker, camshaft, air inlet pipe, carburetor, spark plug, crankshaft toothed wheel, cam shaft gear, exhaustor.Cycle of operation is by suction stroke, compression travel, working stroke and instroke composition, suction stroke: carburetor mixes in carburetor outside cylinder of air and fuel, suck cylinder, bent axle rotarily drives connecting rod, the piston connected by connecting rod moves to lower dead center from top dead centre along with piston, piston cylinder above volume increases, inner cylinder pressure is reduced to below atmospheric pressure, in cylinder, i.e. cause pull of vacuum, crankshaft toothed wheel drives cam shaft gear to make camshaft rotate simultaneously, air inlet on camshaft is protruding by inlet valve push rod jack-up, inlet valve is made to open, exhaust valve closing；Compression travel, inlet valve and exhaust valve closing, piston is moved to top dead centre by lower dead center, and piston arrives top dead centre；Working stroke: piston arrives after top dead center, spark plug on cylinder cover sends spark, the gaseous mixture of the space combustor above piston is by compressing ignition, releasing substantial amounts of heat, inner cylinder pressure increases rapidly, and the combustible gas of High Temperature High Pressure promotes piston, move to lower dead center from top dead centre, making bent axle rotate by connecting rod, and export power, piston runs to lower dead center；Instroke: when piston runs to lower dead center, and gas expansion is opened close to terminal, exhaust valve, and when piston is moved to top dead centre by lower dead center, the waste gas in cylinder is discharged electromotor by exhaust valve by piston.
Described electromotor is water-cooled engine, cooling system is made up of water tank, water pump, swelling water box, pipeline, owing to the cooling system of this electromotor is to be connected by independent pipeline, radiator can be removed, not near electromotor, the design of centre of gravity of unmanned plane relatively has very great help, and is conducive to the layout of overall center of gravity.
The oil supply system of described electromotor can be by supplying oil of carburetor, also can be by fuel oil electric injection system fuel feeding, and as used fuel oil electric injection system fuel feeding, power can improve 5%, and discharge standard can reach state 2 standard, improves exhaust quality further.
The exhaust work of the electromotor described in this patent has independent impulse stroke, and pressure at expulsion is relatively big, so layering room deafener can be connected carry out noise reduction, so that exhaust noise is the lowest.
The present invention is not only able to solve engine fuel and consumes the shortcomings such as big, exhaust emission is big, caloric value is big, noise is big, service life is low, fault rate is high, and it is cheap to have cost price, the advantage that mechanism is simple, easy to maintenance.
Accompanying drawing explanation
Accompanying drawing 1 twin-tub of the present invention post rod type four stroke depopulated helicopter engine structure schematic diagram
In figure: 1. bent axle, 2. crankcase, 3. connecting rod, 4. piston, 5. piston pin, 6. piston ring, 7. cylinder, 8. cylinder cap, 9. inlet valve, 10. exhaust valve, 11. valve fore-sets, 12. valve stems, 13. valve rockers, 14. camshafts, 15. air inlet pipe, 16. carburetors, 17. spark plugs, 18. crankshaft toothed wheels, 19. cam shaft gears, 20. exhaustors.
Detailed description of the invention
In order to be able to be more clearly understood that the technical scheme of invention, the present invention is further described below in conjunction with the accompanying drawings.
Twin-tub post rod type four stroke depopulated helicopter electromotor as shown in Figure 1, specifically include that bent axle (1), crankcase (2), connecting rod (3), piston (4), piston pin (5), piston ring (6), cylinder (7), cylinder cap (8), inlet valve (9), exhaust valve (10) valve fore-set (11), valve stem (12), valve rocker (13), camshaft (14), air inlet pipe (15), carburetor (16), spark plug (17), crankshaft toothed wheel (18), cam shaft gear (19), exhaustor (20), cycle of operation is by suction stroke, compression travel, working stroke and instroke composition, and four-stroke engine to complete a cycle of operation, piston (4) needs to come and go 4 strokes in cylinder (7), bent axle turns 2 circles.
Suction stroke is air and fuel to be mixed in the outer carburetor (16) of cylinder (7) by carburetor (16), then cylinder (7) is sucked, in suction stroke, bent axle (1) rotarily drives connecting rod (3), the piston (4) connected by connecting rod (3) moves to lower dead center from top dead centre along with piston (4), piston (4) cylinder above (7) volume increases, thus cylinder (7) interior pressure is reduced to below atmospheric pressure, i.e. in cylinder (7), cause pull of vacuum, crankshaft toothed wheel (18) drives cam shaft gear (19) to make camshaft (14) rotate simultaneously, air inlet on camshaft (14) is protruding by inlet valve push rod (12) jack-up, inlet valve (9) is made to open, exhaust valve (10) cuts out, here it is suction stroke.
So combustion mixture is sucked cylinder (7) by air inlet pipe (15) by inlet valve, for making the combustible gas of suction cylinder (7) can burn rapidly, to produce high pressure.Making electromotor work must be compressed by gaseous mixture before gas fuel burning, make volume-diminished, density increases, here it is compression travel.During compression travel, inlet valve and exhaust valve are all to close, piston (4) is moved to top dead centre by lower dead center, piston (4) arrives after top dead center, there is a little space piston (4) top, it is referred to as combustor, at this moment, the spark plug (17) being contained on cylinder cover sends spark, after lighting the gaseous mixture compressed, release substantial amounts of heat, cylinder (7) interior pressure increases rapidly, the combustible gas of High Temperature High Pressure promotes piston (4), move to lower dead center from top dead centre, bent axle (1) is made to rotate by connecting rod (3), and export power, when piston (4) runs to lower dead center, here it is working stroke.Gas expansion is opened close to terminal, exhaust valve, and when piston (4) is moved to top dead centre by lower dead center, the waste gas in cylinder is discharged electromotor by exhaust valve by piston (4), here it is instroke.Completing above four circulations, i.e. bent axle and rotate 720 degree (2 circles), electromotor is started to rotarily drive rotor head and tail drive system by the direction set, thus promotes aircraft to start normal flight.
Electromotor of the present invention is water-cooled engine, cooling system is made up of water tank, water pump, swelling water box, pipeline, owing to the cooling system of this electromotor is to be connected by independent pipeline, radiator can be removed, not near electromotor, the design of centre of gravity of unmanned plane relatively has very great help, and is conducive to the layout of overall center of gravity.
The present invention is not only able to solve engine fuel and consumes the shortcomings such as big, exhaust emission is big, caloric value is big, noise is big, service life is low, fault rate is high, and it is cheap to have cost price, the advantage that mechanism is simple, easy to maintenance.
The oil supply system of electromotor of the present invention can be by supplying oil of carburetor, also can be by fuel oil electric injection system fuel feeding, and as used fuel oil electric injection system fuel feeding, the power of electromotor of the present invention can improve 5%, and discharge standard can reach state 2 standard, improves exhaust quality further.
Owing to electromotor of the present invention have employed four-stroke work structuring, there is independent four cycle of operation, thus burning is fully, largely reduces crops, manipulator, the pollution of air.Owing to this engine rotation 2 circle is a cycle of operation (electromotor of two strokes is one cycle of operation of 1 circle), decrease burning number of times, thus caloric value also and then reduces, the exhaust work of this electromotor has independent impulse stroke, pressure at expulsion is bigger, so layering room deafener can be connected carry out noise reduction, so that exhaust noise is the lowest.
The above is only the better embodiment of the present invention, therefore all equivalence changes done according to the structural feature described in present patent application scope and principle or modification, in the range of being all included in present patent application.
Claims (2)
1. a twin-tub post rod type four stroke depopulated helicopter electromotor, it is characterized in that, including: bent axle (1), crankcase (2), connecting rod (3), piston (4), piston pin (5), piston ring (6), cylinder (7), cylinder cap (8), inlet valve (9), exhaust valve (10) valve fore-set (11), valve stem (12), valve rocker (13), camshaft (14), air inlet pipe (15), carburetor (16), spark plug (17), crankshaft toothed wheel (18), cam shaft gear (19), exhaustor (20), described electromotor is water-cooled engine, cooling system is by water tank, water pump, swelling water box, pipeline is formed, owing to the cooling system of this electromotor is to be connected by independent pipeline, radiator can be removed, not near electromotor.
A kind of twin-tub post rod type four stroke depopulated helicopter electromotor the most according to claim 1, it is characterised in that described carburetor (16) fuel system replaceable one-tenth fuel oil electric injection system fuel feeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620134657.1U CN205477877U (en) | 2016-02-23 | 2016-02-23 | Unmanned helicopter engine of double -cylinder ejector pin formula four -stroke -cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620134657.1U CN205477877U (en) | 2016-02-23 | 2016-02-23 | Unmanned helicopter engine of double -cylinder ejector pin formula four -stroke -cycle |
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| Publication Number | Publication Date |
|---|---|
| CN205477877U true CN205477877U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620134657.1U Expired - Fee Related CN205477877U (en) | 2016-02-23 | 2016-02-23 | Unmanned helicopter engine of double -cylinder ejector pin formula four -stroke -cycle |
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| CN (1) | CN205477877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545444A (en) * | 2016-02-23 | 2016-05-04 | 山西微风无人***科技有限公司 | Double-cylinder mandril-type four-stroke engine for unmanned helicopter |
-
2016
- 2016-02-23 CN CN201620134657.1U patent/CN205477877U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545444A (en) * | 2016-02-23 | 2016-05-04 | 山西微风无人***科技有限公司 | Double-cylinder mandril-type four-stroke engine for unmanned helicopter |
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| Date | Code | Title | Description |
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| 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: 20160817 Termination date: 20210223 |