CN2166086Y

CN2166086Y - Combustion-gas catapult

Info

Publication number: CN2166086Y
Application number: CN 92229586
Authority: CN
Inventors: 叶海
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-08-03
Filing date: 1992-08-03
Publication date: 1994-05-25
Anticipated expiration: 2002-08-03

Abstract

The utility model relates to a combustion gas catapult. The utility model has the proposal that air is regarded as a working medium, and high-temperature and high-pressure gas produced by the spray of fuel is regarded as power to eject an aircraft so that the aircraft can take off; the internal of a system is composed of a gas cylinder array (7), a high pressure air pump station (9), a high pressure air line (13), driving cylinder groups (6), a speed-up system and an assisted control system; the speed-up system is composed of a fixed pulley groups (4) and movable pulley groups (5) which are matched to move; the gas cylinder array (7) is composed of a plurality of individual gas cylinders (12) ranked by the order of burning, ensuring the persistent increasing of ejection power; a drawing rod (15) in the driving cylinder groups is fixed to a piston (19) and penetrates through a driving cylinder body (18) and the drawing rod (15) draws the movable pulley groups (5); the opening end of the driving cylinder body (18) is provided with a location limiting air leakage groove (22).

Description

The combustion gas ejector

The utility model belongs to aviation accessory equipment class.

Existing ejector is generally the steam ejector, for example U.S. C13-1 type steam ejector.This type of ejector steam consumption is huge, the manufacturing process complexity, and the system cost height is unsuitable for medium-sized following ship and uses, and more is unsuitable for air strip and cave depot and uses.

The purpose of this utility model provides a kind of combustion gas ejector that boats and ships, cave depot, high-altitude aerodrome or other airparks use that is used for; With air and fuel oil (or combustion gas) mixed firing is propulsion source, drives ejector and launches aircraft takeoff, avoids the steam boiler system, reaches to simplify structure, reduces the purpose of manufacturing cost.

The purpose of this utility model is achieved in that by the high pressure air pump high pressure air is pumped in the gas cylinder in the high-pressure gas bottle array, when the needs ejector produces thrust, in pressurized air, spray into flammable vaporific (or gas) fuel, the valve open of high-pressure gas bottle, light by electro spark, produce high temperature and high pressure gas, this high temperature and high pressure gas enters cylinder along conduit, promote the piston in the cylinder, the transmission of power that piston produces cylinder is to the scooter group, utilize the rope in the scooter group to change the high value propulsive force of the low speed of cylinder into high speed low value propulsive force, being used for towing aircraft or other objects quickens, make it to reach as early as possible takeoff speed, reach the purpose of lift-off as early as possible.

Owing to adopted such scheme, the preceence that combustion gas ejector under the new principle is compared with the steam ejector is: 1. this ejector only uses gasoline or fire gases to be fuel, be not subjected to the restriction of boiler, thereby this ejector can there be the use Anywhere of steam boiler.Such as medium and small naval vessel, can use flexibly in air strip and the mountain area cave depot.2. this ejector is more simple in structure than the steam catapult, and volume is little, is designed to some standard modules easily, is convenient to arrange to arrange in naval vessel or cave depot.3. this ejector only uses gasoline or fire gases to be fuel, is not subjected to the restriction at water source, can use at desert environmental and highlands.In the highlands of high temperature and rarefaction of air, the utility model can make the aero-engine low speed operating mode of getting off quickly, and makes driving engine enter the high thrust operating mode rapidly.This ejector is working medium with the air, and fuel efficiency is relatively good.4. the thrust of steam catapult is inhomogeneous, launches the later stage underproof; And this ejector can be relatively easy to realize even thrust, and the performance of constant acceleration avoids aircraft force part peak stress too high.This ejector setup time short, the cycle of launching is short, easily be automated, thereby the equipment service efficiency can be much higher than steam and launches jet assisted take-off (jato).6. compare steam catapult, this ejector simple in structure, low cost of manufacture, the cheap technical requirements of use and maintenance cost is low, and the operating costs in the whole whole of life is significantly less than steam catapult.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a systematic schematic diagram.

Fig. 2 is gas cylinder arranged in arrays figure.

Fig. 3 speedup system scooter group arrangement plan.

Fig. 4 is the driving cylinder structural plan.

1. aircrafts in the drawings; 2. ground trailing cable; 3. track adjusting wheel; 4. standing block group; 5. movable block group; 6. driving cylinder line; 7. combustion gas generation cylinder array; 8. check valve; 9. high pressure air pumping plant; 10. gas conduct pipe; 11. valve; 12. gas cylinder cylinder body; 13. high pressure air line; 14. polyspast drag-line; 15. driving cylinder pull bar; 16. cylinder cap captive nut; 17. cylinder cap is sieve bolt fixedly; 18. driving cylinder cylinder body; 19. piston body; 20. piston gland; 21. piston rod is mother sieve fixedly; 22. spacing disappointing groove; 23. for driving cylinder end piece; 24. gas conduct pipe captive nut.

In Fig. 1, high pressure air pumping plant (9) advances high pressure air by check valve (8) to gas cylinder array (7) pump, in the moment that needs launch, spray into fuel oil or fire gases, and light a fire by electric plug, high-temperature high-pressure fuel gas enters by pipeline and drives cylinder line (6), promote piston expansion acting, movable pulley (5) in the pulling scooter group, the scooter group is converted to high speed low value propulsive force to the high value propulsive force of low speed, through the further speedup and the guiding of track adjusting wheel (3), quicken to take off by ground trailing cable (2) towing aircraft (1).Each stressed movement parts all is designed to and bears structure, and to guarantee the quality minimum of these parts, the inertia minimum is convenient to accelerate cycle time, bears the stabilized conditions of part when being convenient to guarantee to launch simultaneously.

At the high pressure air of Fig. 2 mesohigh airline (13) acceptance from high pressure air pumping plant (9), and distribute to each gas cylinder (12) deposit, each gas cylinder is subjected to valve (11) the control ignition time separately.When launching, launch power and constantly increase for making, light a collection of gas cylinder at set intervals, the gas cylinder number average of the combustion of whenever marking words and phrases for special attention than last increase one or more, thereby guarantee that launching power constantly increases, light up to all gas cylinders to finish.

In Fig. 3, driving air cylinder tie rod (15) in the speedup system is subjected to the pulling force of cylinder piston, pulling movable block group (5) makes movable pulley car group (5) and fixed pulley car group (4) produce split movement, thereby the kinematic velocity of pull bar (15) and acceleration/accel is amplified several times.

In Fig. 4, gas conduct pipe (10) is sent the high-temperature high-pressure fuel gas that the gas cylinder array is sent here here, in cylinder, expand and do work, promote piston body (19) motion, piston body (19) drives air cylinder tie rod (15) by piston gland (20) and piston captive nut (21) pulling, thereby the moving cunning car group (5) of taking turns of pulling, when piston body (19) moves to the position of spacing disappointing groove (22), can not seal between piston body (19) and the driving cylinder cylinder body, gas leakage is gone out, and guarantees that piston body has fixing stroke.

Claims

1 combustion gas ejector, utilize high temperature and high pressure gas to launch aircraft takeoff, it is characterized in that: form by gas cylinder array (7), high pressure air pumping plant (9), high pressure air line (13), driving cylinder group (6), speedup system and supplementary controlled system in the system as power.

2 by the described combustion gas ejector of claim 1, it is characterized in that: the speedup system is made up of and routing motion fixed pulley car group (4) and movable block group (5).

3 by the described combustion gas ejector of claim 1, and it is characterized in that: gas cylinder array (7) is made up of a plurality of independent gas cylinders (12), arranges by the precedence of burning.

4 by the described combustion gas ejector of claim 1, it is characterized in that: the pull bar in the driving cylinder group (15) is captiveed joint with piston (19), and passes in driving cylinder body (18).

5 by the described combustion gas ejector of claim 1, it is characterized in that: pull bar (15) pulling polyspast (5) in driving cylinder.

6 by the described combustion gas ejector of claim 1, and it is characterized in that: the open end of driving cylinder cylinder body (18) is offered spacing disappointing groove (22).