CN102072021A - Aircraft engine - Google Patents

Abstract

The invention discloses a newly-designed aircraft engine, wherein fuel and a combustion chamber are preheated by coal gas; the coal gas passes a switch, enters a big oil tube the diameter of which is 24 millimeters, then enters 12 small oil tubes 13 outside of the combustion chamber from the big oil tube, enters the combustion chamber in an exhaust pipe 14, and is ejected from 108 jet orifices uniformly and burnt; 12 small tubes are very hot after 4-6 minutes, and kerosene is burnt instead; and a No.3 electric fan in parallel connection from left to right is used for preheating, a No.2 electric fan in parallel connection is added when the aircraft moves, three motors operate together when the aircraft takes off, and all machines are boosted to work when the aircraft takes off. As the speed of the aircraft increases, the pressure of inlet gas after automatic boosting also increases, pressure in the combustion chamber also increases, high-temperature fuel oil turns into gas fuel which is subjected to explosive combustion; as the air sucked by difference in discharge velocity of the exhaust pipe expands quickly, the air jetting quantity and air jetting velocity increase. By the design, the engine can become a high-speed engine which saves energy remarkably. During the flying of the aircraft, if one electric fan fails, a group of electric fans in parallel connection with the electric fan are shut off, and the aircraft also operates normally. If urgent deceleration is required during flying, an intake valve of an intake venturi can be shut or semi-shut; the intake valve can be completely shut when the aircraft arrives at the destination; and the coal gas is used for starting if restart is needed. The engine is suitable for a high-speed aircraft which can show the specific performance thereof better.

Description

Airplane engine

One, air inlet design: utilize power can transmit, change the principle of direction and stack, unit stream pressure during more than 1,000 square centimeters of aircraft flights, enter gas storage chamber after focusing on 30 square centimeters, be diameter that 13 meter suction port is through two meters length just, gradient with 16 five degree, narrowing down to diameter at leisure is that point two Mi Chu air outlet enters gas storage chamber, gas-entered passageway requires to make with the chromium alloyed steel of four millimeters thick, its degree of finish be ten grades to subtract second air inlet frictional force.Form with the afterburning fan of large, medium and small three air inlets respectively in suction tude, fans two is pulled and is fans entad, and its entad gradient is 16 five degree, preceding cutting edge profit, the flying object that cutting enters.And minimizing noise, keep consistency with airintake direction, the distance between them is 0. 5 meters, electric motor power elongated shape, three fulcrums are fixed, the pointed cap of front motor band ten degree gradients has four radiation holes on the cap, air inlet is boosted to boost with machinery and combined automatically, opportunity of combat can reach 25 to 30 barometric pressure, passenger plane is stayed and is reached to 20 to 25 barometric pressure, and the design passenger plane improves speed daytime, to obtain higher suction pressure.Be lowered to gas storage chamber, the room-mate enters the firing chamber through small holes equably with gas storage.Gas storage chamber is fixedly connected with screw at the preceding hemisphere of spherical combustion chamber, and welds with Quan Steel Electrode not, and the drainage means of magnetic switch control is housed below the gas storage room-mate, to reduce when rainy adverse effect when starting to burn.At air inlet small end trunnion the air intake control valve door is arranged.

Two, burning room-mate design: the spherical combustion chamber thermal radiation is concentrated, the combustible loss minimum, the multiplication of expanding of temperature height, gas,, the pressure height, spray that also airspeed is fast, reach with regard to efficient.Spherical combustion chamber is stamped to form in two, thickness after striking out with chromium tungsten alloy steel drift reaches more than six millimeters, interior degree of finish is more than six degree, before hemisphere be drilled with diameter be nine millimeters enter 810 in institute hole, guarantee that high-pressure uniform ground enters the firing chamber, close after ball is provided with two spray bar general assemblies of electric heating type electrical spark fire device and finishes the back, and the excessive radius of arc of two hemispheres and gas storing pipe is a point two rice, then firing chamber and outlet pipe are welded, be provided with the thermal-protective coating device.

Three, fuel system design: establish two fuel pumps fuel feeding in parallel, to guarantee that safety is with oily, fuel oil is come the outside at rear portion, firing chamber through filtering the back to fuel tap, jet, outside outlet pipe, enter in the outlet pipe at last, fixing respectively along burning room-mate inwall again, it is fixing that 12 pipes are accepted mutually, and it is 0. 8 millimeters spray orifice that every tubule is provided with nine diameters, article 12, tubule has 108 spray orifices, and spray orifice and pipe are the chromium tungsten alloy.High-ranking official's diameter of bore is 24 millimeters Stainless Steel Alloies.When engine start with gas preheating after four to six minutes in changing coal common occurrence work over to.After heating, burning oil content reaches more than 600 degree, guarantees the thoroughly burning rapidly of fuel oil, sprays combustion gas at a high speed.

 

Four, outlet pipe sucks air design automatically: utilize the exhaust high velocity air can produce the principle of suction, by the louvre type design, the air of inspiration outside increases air displacement, strengthens the order ground that exhaust power reaches the joint fuel oil.The shutter blade extreme temperatures will be used the chromium tungsten alloy material, though between the sheet at a distance of five millimeters, the blade gradient is six degree, has outside individual cross passage and the firing chamber in the middle of outlet pipe and seals with high-temperature alloy.Link to each other with outside air and venetian blind.

Description of drawings

Fig. 1

Fig. 1 is that air inlet increases mechanism, high-pressure gas chamber, spherical combustion chamber, the figure of branch of exhaust air jet pipe system.

1, supply fan motor;

2, air inlet second fan motor;

3, air inlet three fan motor;

4, motor fixed support;

5, electrical motor fan blade;

6, the air inlet aperture is 810;

7, spherical combustion chamber;

8, outlet pipe;

9, outlet pipe air inlet cross passage;

10, thermal-protective coating;

11, the firing chamber is connected and fixed the Luo silk

Fig. 2

Fig. 2 is that airplane engine high temperature fuel oil, fuel are cardon.

12, major diameter oil inlet pipe and advance gas pipe;

13,12 little oil-feed economizer banks in outside, firing chamber;

14, the little oil-feed economizer bank in the inside, firing chamber;

15, tubule link press span.

Fig. 3

Fig. 3 is the automatic air inlet AA of an outlet pipe sectional drawing.

Claims (5)

1. the air inlet design of boosting automatically: on focusing on whole suction port aircraft flight time unit stream pressures a bit, just 12 meter suction port, gradient through ten six five and two meter two length narrow down to 0. 15 meters at leisure, obtain high pressure.After small venturi is equipped with air inlet switch trunnion, enter gas storage chamber, wherein also have three inlet cones keep one to the pressurization of entad fan blade.

2. gas storage chamber: the stream pressure of concentrating stored supply with the firing chamber equably, be provided with the cock of water drain when raining below the apotheca, make engine combustion unaffected.

3. spherical combustion chamber: the firing chamber has 800 10 high pressure draught spray orifice high temperature oil pipes that 108 spray orifices are arranged.108 above fuel oil high temperature in spray orifice 600 degree west spray to ball center, form the blasting type burning, and pressure is concentrated, and it is the highest a kind of firing chamber of the thermal efficiency that heat radiation is concentrated.

4. high temperature fuel oil design: 12 high temperature oil pipes enter after from firing chamber and outlet pipe outside to outlet pipe in the outlet pipe again above spherical combustion chamber, make fuel oil obtain to burn in the fuel oil spray firing chamber behind the enough heat energy, do not have the gas preheating device simultaneously, just change the fuel oil ejection after the first preheating into.

5. the automatic air inlet of exhaust: produce suction when utilizing the high-speed air communication of exhaust to cross venetian blind the air inspiration is gone, the ejection of expanding rapidly increases whiff pressure and jet amount, makes jet lamb's-quarters get ideal effect.

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