CN1314895C - Electrojet self-adaptable impulsive jetting engine device and controlling method thereof - Google Patents

Electrojet self-adaptable impulsive jetting engine device and controlling method thereof Download PDF

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Publication number
CN1314895C
CN1314895C CNB2004100273359A CN200410027335A CN1314895C CN 1314895 C CN1314895 C CN 1314895C CN B2004100273359 A CNB2004100273359 A CN B2004100273359A CN 200410027335 A CN200410027335 A CN 200410027335A CN 1314895 C CN1314895 C CN 1314895C
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valve
air
self
storing cavity
suction valve
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Expired - Fee Related
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CNB2004100273359A
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CN1644905A (en
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陈建元
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Abstract

The present invention relates to a device and a control method of a pulse jet engine with a self-adaptive valve by electrical jet. The pulse jet engine of the present invention mainly comprises a combustion chamber, an air jet pipe, a main fuel oil injector, a cold starting fuel oil injector, an impeller power generator and a control structure of a self-adaptive air inlet valve, wherein the opening and the closure of the air inlet valve is automatically regulated by the control structure of the self-adaptive air inlet valve according to the working frequency of the engine, and complicated mechanical control or electric control is not needed.

Description

EFI has valve self-adapting pulse air breathing engine device and controlling method
Technical field
The present invention relates to a kind of EFI has the pulse jet engine device and the controlling method of self adaption valve.
Technical background
Aeropulse engine is divided into valve formula and valveless formula, has the valve formula to be meant that the suction port at chamber front end has a safety check, prevents detonation gas from the anti-phase ejection of air inlet pipeline, and the valveless formula does not then have this function.Their working principle is basic identical: when inflammable gas at the firing chamber knocking fuel, when being detonation, produce high-temperature gas and sharply expansion, the gas of expansion is by outwards ejection at a high speed of air jet pipe, under the effect of the reaction force that sprays gas, just produce thrust forward.
For valveless aeropulse engine, though it is simple in structure, because the air inlet pipeline of air inlet of combustion chamber does not have valve, detonation gas is understood some and is oppositely sprayed from air inlet pipeline, thereby loses quite a few power.Then there is not this problem for the aeropulse engine that the valve formula is arranged.But the control system structure more complicated that the valve formula is arranged at present, as number of patent application is the self-adaptation control method and the device (publication number: 1460790A) of the pulsed motor frequency of 03147781.X, described in the specification of disclosed a kind of pulsed motor, there is the aeropulse engine of valve formula to mainly contain two kinds of forms at present, 1, wheel disc rotating valve and 2, plug formula valve, as the method that adopts usually on the similar automobile, its complex structure is inadvisable.But do not illustrate in this description of the invention that its invention belongs to valve formula or valveless formula or other forms are arranged, only discuss: establish that the preceding pressure of detonation is P1 the firing chamber in, pressure is P2 after the detonation, the discharge pressure of combustion gas is P3, and the combustion-supporting gas discharge pressure is P4, wherein, P2>P1, P3>P1; Pilot pressure P3, P4 make the two satisfy following relation: P4>P2, P2>P1.According to its setting, as making combustion-supporting gas discharge pressure P4 all the time greater than the pressure P in the firing chamber 2, the feedway that one cover combustion-supporting gas must be arranged, as the turbine air compression set, otherwise combustion-supporting gas discharge pressure P4 can not be greater than the pressure in the firing chamber at the detonation initial stage, pressure in the firing chamber is inevitable greater than P4, detonation gas is understood some and is oppositely sprayed from suction port, it can only be at detonation gas after the combustor exit ejection, when becoming negative pressure in the firing chamber, combustion-supporting gas discharge pressure P4 could be greater than the pressure P after the detonation in the firing chamber 2, be that the pressure P after the detonation 2 is dynamic-form in the firing chamber, because the disclosed air inlet setting of this specification is the combustion-supporting gas pipeline, there is not miscellaneous part, therefore illustrate that its aeropulse engine belongs to the valveless formula, at every turn in detonation during the initial stage, detonation gas is understood some and is oppositely sprayed from air inlet pipeline.
Summary of the invention
In order to solve the valveless formula and the above shortcoming of valve formula pulse jet engine to be arranged, and can be easy to the starting impulse air breathing engine under normal conditions, with its suction valve of control can be according to the frequency of okperation self adaptive control opening and closing problem of motor, the present invention adopt 1 cold start fuel injector device directly spray combustion gas solve pulse jet engine under normal conditions startup and utilize that the pressure difference of detonation gas in the firing chamber solve suction valve carry out the opening and closing problem automatically.When the cold start fuel injector device directly sprays into the firing chamber with vaporific combustion gas, with the air mixing in the firing chamber, form inflammable mixture, light combustible gas, pulse jet engine just can be started working, and the pressure in the pulse jet engine firing chamber differs greatly before and after the combustion gas detonation, so, utilize the unidirectional on-off function of this pressure difference and one-way valve just can control automatically to suction valve.
In addition, in order to solve the confession electrical problems of pulse jet engine, the present invention's employing is provided with a turbo dynamo and solves on air jet pipe.
The object of the present invention is achieved like this:
The normality lower inlet valve is closed because of the effect of spring, and the cold start fuel injector device directly sprays into the firing chamber with vaporific combustion gas, with the air mixing in the firing chamber, forms inflammable mixture; Igniter is lighted combustible gas, during the combustible gas detonation, outdoor and air storing cavity is all high because of the pressure ratio in the firing chamber, this moment, one-way valve was opened because of the effect of internal pressure of combustion chamber, to the air storing cavity air feed, and suction valve still cuts out because of the effect of spring and internal pressure of combustion chamber this moment sub-fraction detonation gas by one-way valve and breathing pipe; After detonation gas sprays at a high speed from the spout of air jet pipe, pressure in the firing chamber is reduced to negative pressure rapidly, pressure in the air storing cavity is greater than the pressure in the firing chamber, pressure in the air storing cavity has overcome the resistance of spring simultaneously, promote piston motion, connecting rod on the piston then promotes suction valve, makes INO, and the vaporific combustion gas and the composite inflammable mixture of combustion-supporting gas of main oil sprayer ejection enter the firing chamber; When piston motion surpassed exhaust port, the gas in the air storing cavity discharged, the interior pressure recovery original state of air storing cavity this moment, and suction valve cuts out because of the active force anti-phase motion of spring, and process before repeating.
According to a kind of EFI of the present invention valve self-adapting pulse air breathing engine device is arranged; mainly include firing chamber, air jet pipe, main oil sprayer, cold start fuel injector device, igniter, turbo dynamo and self-adjusting inlet valve control system, and cold start fuel injector device Protective valve structure.
The air jet pipe tail end can be straight, also can bend, and a turbo dynamo is set above, and when detonation gas sprayed by the outside continuous high speed of air jet pipe, the gas of ejection promoted wheel rotation simultaneously, drives generator for electricity generation.
According to EFI of the present invention valve self-adapting pulse air breathing engine device is arranged, though Duoed a self-adjusting inlet valve control system than the structure of valveless formula pulsed motor, but the self-adjusting inlet valve control system of pulse jet engine of the present invention is simple and practical, need not control of accurate complicated mechanical and electrical control, pulse jet engine and can not lose a part of power because of no suction valve.
Description of drawings
Figure 1 shows that a kind of EFI of the present invention has the structural representation of valve self-adapting pulse air breathing engine device.
Figure 2 shows that cold start fuel injector device protection structural representation.
Embodiment
Now in conjunction with the accompanying drawings the present invention is described in further detail.
To shown in Figure 2, EFI of the present invention has valve self-adapting pulse air breathing engine device mainly to comprise: igniter 2 is arranged in the firing chamber 1, and its spout place links to each other with air jet pipe 14, and a turbo dynamo 15 is set on air jet pipe 14 as Fig. 1; The suction valve valve body 11 of self-adjusting inlet valve control system links to each other with the suction port of firing chamber, choke valve 13, main oil sprayer 12 is arranged on the suction port place of suction valve valve body 11, suction valve 3 links to each other with piston 9 by connecting rod 6, spring 7, connecting rod 6 is between suction valve 3 and piston 9, and all place in the suction valve valve body 11, an exhaust port 8 is arranged on the suction valve valve body 11, be provided with an air storing cavity 10 in its body, piston 9 can be movable in air storing cavity 10, and one-way valve 4 links to each other with firing chamber 1, and communicate by the air storing cavity 10 in breathing pipe 5 and the suction valve valve body 11, form self-adjusting inlet valve control system; Valve 18, solenoid valve 19; pressure spring 20 places in the cold start fuel injector device Protective valve valve body 17; wherein valve 18 is connected as a single entity with electromagnetic valve core; the cold start fuel injector device protection structure of forming; on cold start fuel injector device Protective valve valve body 17, cold start fuel injector device 16 is arranged, and be fixed on the outside of firing chamber 1.
Normality lower inlet valve 3 is closed because of the effect of spring 7, cold start fuel injector device 16 directly sprays into firing chamber 1 with combustion gas, with air mixing own in the firing chamber 1, form inflammable mixture, igniter 2 is lighted combustible gas, during the combustible gas detonation, outdoor and air storing cavity 10 is all high because of the pressure ratio in the firing chamber 1, this moment, one-way valve 4 was opened because of the effect that firing chamber 1 internal pressure increases, mouthful very little because of one-way valve 4, air storing cavity 10 is also very little, therefore have only a small amount of detonation gas by one-way valve 4 and breathing pipe 5 to air storing cavity 10 air feed, air storing cavity 10 storages are pressed, and this moment, suction valve 3 still cut out because of the effect of spring 7 and firing chamber 1 internal pressure; After detonation gas sprays at a high speed from the afterbody spout of air jet pipe 14, pressure in the firing chamber 1 is reduced to negative pressure rapidly, one-way valve 4 reduces to close automatically rapidly because of the pressure in the firing chamber 1, guarantee that the gas that stores in the air storing cavity 10 can not reflux, pressure in the air storing cavity 10 is greater than the pressure in the firing chamber 1 at this moment, and overcome the resistance of spring 7, promote piston 9 motions, piston 9 promotes suction valve 3 by connecting rod 6 simultaneously, suction valve 3 is opened, the combustion gas of main oil sprayer 12 ejections becomes inflammable mixture with air mixing, enters firing chamber 1 by the suction valve of opening 3; When piston 9 movement positions surpassed exhaust port 8, the gas in the air storing cavity 10 discharged, and the pressure in the air storing cavity 10 reduce and restore to the original state at this moment, and suction valve 3 cuts out because of the active force of spring 7, and process circulates before so repeating.When detonation gas outwards sprays at a high speed by air jet pipe 14, promote turbo dynamo 15 generatings simultaneously.
Cold start fuel injector device 16 need not to work behind engine start again generally speaking, is main by main oil sprayer 12 thereafter, and combustion gas is provided.During cold start-up; solenoid valve 19 drives valve 18; the valve port of cold start fuel injector device 16 fronts is opened; make cold start fuel injector device 16 combustion gas directly can be sprayed into firing chamber 1; when solenoid valve was not worked, valve was because of the effect of pressure spring 20, close port 18; prevent of the harm of detonation gas, with protection cold start fuel injector device 16 to cold start fuel injector device 16.
In the controlling method of the present invention, the self-adapting type opening and closing of suction valve, be to control automatically according to the frequency of okperation of motor by piston, one-way valve and spring, it may further comprise the steps: the detonation gas in the firing chamber makes one-way valve opens and to the air storing cavity air feed, detonation gas in the firing chamber is after the spout ejection, the air pressure of air storing cavity promotes piston motion, promote inlet open by connecting rod simultaneously, air storing cavity exhaust when the piston motion position surpasses exhaust port, suction valve cuts out because of the active force of spring.Therefore to need not accurate complicated mechanical control or electrical control, also can not lose a part of power in order pursuing simple as valveless formula pulse jet engine.

Claims (2)

1, a kind of EFI has the pulse jet engine device of self adaption valve; comprise firing chamber (1), air jet pipe (14), main oil sprayer (12), cold start fuel injector device (16), igniter (2), self-adjusting inlet valve control system, cold start fuel injector device protection structure and turbo dynamo (15), it is characterized in that:
Described self-adjusting inlet valve control system comprises that choke valve (13), main oil sprayer (12) are arranged on the suction port place of suction valve valve body (11), an exhaust port (8) is arranged on the suction valve valve body (11), an air storing cavity (10) is arranged in its body, and communicate with one-way valve (4) by breathing pipe (5), piston (9) can be movable in air storing cavity (10), and suction valve (3) links to each other with piston (9) by connecting rod (6), spring (7) and connecting rod (6) are positioned between suction valve (3) and the piston (9), and place in the suction valve valve body (11); Described air jet pipe (14) is straight or curved.
2, the controlling method of the pulse jet engine of self adaption valve is arranged according to a kind of EFI of claim 1, it is characterized in that:
The self adaption opening and closing of suction valve (3), be by piston (9), one-way valve (4) and spring (7) are controlled automatically according to the frequency of okperation of motor, it may further comprise the steps: detonation gas is opened and to air storing cavity (10) air feed one-way valve (4), the air pressure of air storing cavity (10) promotes piston (9) motion, promote suction valve (3) by connecting rod (6) simultaneously and open, after the gas of air storing cavity (10) reduced, suction valve (3) cut out because of the active force of spring (7).
CNB2004100273359A 2004-05-28 2004-05-28 Electrojet self-adaptable impulsive jetting engine device and controlling method thereof Expired - Fee Related CN1314895C (en)

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CN1314895C true CN1314895C (en) 2007-05-09

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100432394C (en) * 2007-07-23 2008-11-12 靳永军 Power machine using inflammable powder as material
CN105003353B (en) * 2015-07-14 2017-01-18 王星睿 Valvula type pulse jet engine
CN106801650B (en) * 2017-01-12 2018-11-06 西北工业大学 A kind of pressure-actuated adaptive pulse-knocking engine valve system
CN112325333B (en) * 2021-01-04 2021-04-06 成都裕鸢航空智能制造股份有限公司 Aeroengine oil-gas mixing method and mixing cavity structure
CN112324574B (en) * 2021-01-04 2021-04-06 成都裕鸢航空智能制造股份有限公司 Aeroengine, aeroengine's (air) intake valve and air intake structure
CN112324586B (en) * 2021-01-04 2021-04-06 成都裕鸢航空智能制造股份有限公司 Aeroengine combustion chamber and working method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4617796A (en) * 1985-03-18 1986-10-21 Rockwell International Corporation Sleeve valve for a pulsed gas generator
CN1017244B (en) * 1985-05-07 1992-07-01 阿尔卡洛达化学工厂 Triazolyi quinoline derivatives
US5546744A (en) * 1994-06-24 1996-08-20 Lockheed Martin Pulse detonation apparatus with spherical seals
US6213097B1 (en) * 1996-09-30 2001-04-10 Robert Bosch Gmbh Engine working according to the method of pulsating combustion
US6279872B1 (en) * 1997-08-12 2001-08-28 Deutsches Zentrum Fuer Luft-Und Raumfahrt E.V. Quick-acting valve
US6668542B2 (en) * 1999-10-27 2003-12-30 Allison Advanced Development Company Pulse detonation bypass engine propulsion pod

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4617796A (en) * 1985-03-18 1986-10-21 Rockwell International Corporation Sleeve valve for a pulsed gas generator
CN1017244B (en) * 1985-05-07 1992-07-01 阿尔卡洛达化学工厂 Triazolyi quinoline derivatives
US5546744A (en) * 1994-06-24 1996-08-20 Lockheed Martin Pulse detonation apparatus with spherical seals
US6213097B1 (en) * 1996-09-30 2001-04-10 Robert Bosch Gmbh Engine working according to the method of pulsating combustion
US6279872B1 (en) * 1997-08-12 2001-08-28 Deutsches Zentrum Fuer Luft-Und Raumfahrt E.V. Quick-acting valve
US6668542B2 (en) * 1999-10-27 2003-12-30 Allison Advanced Development Company Pulse detonation bypass engine propulsion pod

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