CN102400815B - Layer-board type injection device for oxygen/ methane low-thrust engine - Google Patents
Layer-board type injection device for oxygen/ methane low-thrust engine Download PDFInfo
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- CN102400815B CN102400815B CN 201110066355 CN201110066355A CN102400815B CN 102400815 B CN102400815 B CN 102400815B CN 201110066355 CN201110066355 CN 201110066355 CN 201110066355 A CN201110066355 A CN 201110066355A CN 102400815 B CN102400815 B CN 102400815B
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Abstract
The invention provides a layer-board type injection device for an oxygen/ methane low-thrust engine, which mainly comprises a spark plug, a fuel connecting pipe nozzle, an oxygen connecting pipe nozzle, a fuel slab, an oxidant board, a top layer board, a splitter plate A, a splitter plate B, a border area coolant flow regulating and fixing device, a border area coolant flow regulating gasket, a fuel nozzle and a shell, wherein the layer-board type injection device is provided with the border area coolant flow regulating and fixing device; and the oxygen flow rate of coolant can be regulated according to the test requirement. The layer-board type injection device provided by the invention is compact in layout, simple in structure and high in density of the fuel nozzle, so that the combustion efficiency can be better improved, the volumes of circulation channels of fuel and oxidant are small, and the response characteristic of the engine can be better improved.
Description
Technical field
The invention belongs to liquid propellant rocket engine Push Technology field, be specifically related to a kind of gas oxygen/methane thrustor platelet injector.
Background technique
The low thrust attitude control engine that major part is applied on the aerospace craft at present all adopts poisonous propellant agent, such as hydrazine, uns-dimethylhydrazine, dinitrogen tetroxide etc., along with the development of space technology, the application of Nontoxic propellant on thrustor becomes the main development direction that space flight advances.
In liquid propellant rocket engine, the design of ejector filler plays conclusive effect to the mixing of propellant agent and combustion performance, stability.Adopt the double elements ejector filler of three ends two cavity configurations to generally comprise oxidant cavity, fuel cavity, oxidize nozzle, fuel nozzle, igniter etc., its main feature is that fuel and oxygenant have respectively liquid collecting cavity separately, alternately distributing on spray panel fuel nozzle and oxidize nozzle links to each other with separately liquid collecting cavity respectively, the liquid collecting cavity volume makes thrustor response characteristic variation, and the pulse operation specific impulse descends.
The photoetching platelet injector that begin to use the sixties in 20th century has good atomizing and mixed performance, and response is fast, compatibility is good, has from cooling off performance, has been applied to abroad space shuttle rail control engine, low thrust attitude control engine and gas generator.Because it is the key process technology that the photoetching platelet injector is made that photoetching platelet injector laminate thickness, adopts photoetching process processing laminate usually less than 0.1mm.Photoetching is a kind of figure the duplicating and comprehensive precision processing technology that corrosion combines.The platelet injector photoetching process need be passed through following flow process: chemical cleaning, oven dry, gluing, oven dry, exposure, dominant, setting, rinsing, post bake, burn into remove photoresist, finished product is modified, and so many operation has improved process complexity greatly; And because the material of photoetching platelet injector lithography process is generally space flight with the material of anti-strong acid corrosion, so need to study specific corrosive liquid and supporting optical resist for different materials, improved difficulty of processing and the cost of photoetching platelet injector.Adopt laminate stack Diffusion Welding technology that each laminate is welded together, surface quality to each parts (laminate) requires very high, and diffusion welding craft adopts High Temperature High Pressure, and under high temperature condition, adopt very large pressure easily to cause hole and circulation passage generation plastic deformation between each plate face of laminate, affect workmanship and performance, therefore to obtain the platelet injector of performance and good quality, process parameter is had higher requirement, indirectly increase cost of production.
Summary of the invention
For problems of the prior art, the present invention the development with gas oxygen as oxygenant, in the low thrust Nontoxic propellant motor process that methane acts as a fuel a kind of novel ejector filler scheme has been proposed.A kind of gas oxygen that the present invention proposes/methane thrustor platelet injector has a liquid collecting cavity volume little, and response characteristic is good, and technique is simple, low cost and other advantages.
The present invention proposes a kind of gas oxygen/methane thrustor platelet injector, comprising: spark plug, fuel joint ozzle, oxygen connecting-tube nozzle, fuel slab, oxygenant plate, top plate, flow distribution plate A, flow distribution plate B, border area coolant flow are regulated fixing device, the border area coolant flow is regulated pad, fuel nozzle and housing.Wherein fuel slab, oxygenant plate, top plate, flow distribution plate A and flow distribution plate B form veneer structure; The border area coolant flow regulates fixing device and border area coolant flow adjusting pad is called the border area refrigerant flow adjusting device.
Described housing is round structure, the center has through hole a, through hole a inside is welded with flow distribution plate A, flow distribution plate B, fuel slab and oxygenant plate in turn, the upper surface of top plate and flow distribution plate A is weldingly connected, the edge of housing is evenly distributed with a plurality of bolts hole, this platelet injector and miscellaneous part can be fixed by bolt hole.
Described top plate center has through hole A, through hole A bilateral symmetry is distributed with through hole C and through hole B, through hole B is connected with the oxygen connecting-tube nozzle with the fuel joint ozzle respectively with through hole C, and also be connected with fuel joint ozzle gasket seal between described through hole B and the fuel joint ozzle, also be connected with oxygen connecting-tube nozzle gasket seal between through hole C and the oxygen connecting-tube nozzle.
The center of described flow distribution plate A has ladder hole D, and the aperture on ladder hole D top is identical with the aperture of through hole A, and ladder hole D is coaxial with through hole A; The bilateral symmetry of ladder hole D is distributed with blind hole I and through hole E(freezing mixture tap hole and oxygenant tap hole and belongs to through hole E).The perforate direction of blind hole I is towards the top plate direction, when assembling the veneer structure of platelet injector, blind hole I is relative with through hole B, and blind hole I is coaxial with through hole B, inboard adjacent position at blind hole I is provided with through hole F, and blind hole I is connected by the recess channels at flow distribution plate A in-plane with through hole F.Described through hole E is relative with the through hole C position on the top plate, through hole E is the double-hole structure, top layer is intercommunicating pore, bottom is that freezing mixture tap hole and oxygenant tap hole can be shunted air-flow by the intercommunicating pore of top layer through freezing mixture tap hole and the oxygenant tap hole of bottom, when assembling the veneer structure of platelet injector, the intercommunicating pore of through hole E is relative with top plate, and the freezing mixture tap hole is relative with flow distribution plate B with the oxygenant tap hole.
The center of described flow distribution plate B has through hole G, through hole G is coaxial with through hole A and ladder hole D, has annular chamber A around the through hole G, when assembling the veneer structure of platelet injector, make annular chamber A towards flow distribution plate A, the arranged outside of annular chamber A has blind hole X, and blind hole X is connected with annular chamber A by the recess channels on the flow distribution plate B in-plane, and blind hole X is coaxial with through hole F; Flow distribution plate B circumferentially is evenly distributed with a plurality of through hole J on the edge, bottom of annular chamber A; On the flow distribution plate B position relative with the oxygenant tap hole with the freezing mixture tap hole of through hole E, be respectively arranged with through hole K
1With through hole K
2, through hole K
1Coaxial with the freezing mixture tap hole, through hole K
2Coaxial with the oxygenant tap hole, make through freezing mixture tap hole effluent air by through hole K
1Flow out, make through oxygenant tap hole effluent air through through hole K
2Flow out.Be threaded connection the border area coolant flow in the freezing mixture tap hole and regulated fixing device, described through hole K
1And be provided with the border area coolant flow between the freezing mixture tap hole and regulate pad, the border area coolant flow is regulated the pad center and is had center hole, and the size variable of this center hole can be regulated inflow through hole K by regulating border area coolant flow adjusting pad
1In gas flow.
Described fuel slab center has through hole M, and through hole M is coaxial with through hole G, through hole A and ladder hole D; The periphery of through hole M is provided with annular chamber B, when assembling the veneer structure of platelet injector, make annular chamber B towards flow distribution plate B, annular chamber A equates with the radius of annular chamber B, the periphery of annular chamber B evenly is provided with a plurality of ladder hole R that communicate with annular chamber B in the circumferential direction of the circle, and each ladder hole R all is connected with annular chamber B by recess channels.Fuel slab has annular chamber C in ladder hole R arranged outside, the through hole K on annular chamber C and the flow distribution plate B
1The position is (axis that is through hole K1 is positioned on the chamber of annular chamber C) relatively, the bottom even of annular chamber C be provided with a plurality of through hole N, the number of through hole N is preferably more than 16.Also be provided with through hole L on the fuel slab, make through hole L and through hole K
2Coaxial.
Described oxygenant plate center has ladder hole P, ladder hole P is coaxial with through hole M, ladder hole P periphery is evenly distributed with a plurality of ladder hole Q in the circumferential direction of the circle, ladder hole Q is coaxial with ladder hole R, and ladder hole Q equates with ladder hole R number, each corresponding ladder hole Q and each ladder hole R can be combined, form a combined hole, and then fuel nozzle is fixed in the combined hole of ladder hole Q and ladder hole R formation, and fuel nozzle uses temperature differential method to be fixed in this combined hole.The oxygenant plate has blind hole Y in the side of ladder hole P, when assembling the veneer structure of platelet injector, blind hole Y is relative with fuel slab, and blind hole Y is coaxial with through hole L, have annular chamber D in the periphery of ladder hole P, by annular chamber D blind hole Y is communicated with each ladder hole Q.The sidewall of oxygenant plate becomes stepped and forms annular chamber E with inner walls, and annular chamber E is relative with the through hole N position on the fuel slab, the equal in length of through hole N and annular chamber E distance center.Along circumferentially being evenly distributed with a plurality of through hole T, be used for the circulation freezing mixture in the bottom of annular chamber E, the freezing mixture that flows out from through hole T is flowed out along the inner wall edge of housing, be used for cooling.Spark plug passes through hole A, ladder hole D, through hole G, through hole M and ladder hole P successively, and is connected with the spark plug gasket seal between the ladder hole D of spark plug and flow distribution plate.
Advantage and good effect that the present invention has are:
(1) a kind of gas oxygen of the present invention's proposition/methane thrustor platelet injector, by five blocks of laminates fuel and oxygenant are carried out flow-dividing control, compact in design, simple in structure, the volume of fuel and oxidant stream circulation passage is little, is conducive to improve the engine response characteristic;
(2) a kind of gas oxygen of the present invention's proposition/methane thrustor platelet injector has the border area refrigerant flow adjusting device, according to test requirements document, can conveniently regulate the freezing mixture oxygen flow;
(3) a kind of gas oxygen of the present invention's proposition/methane thrustor platelet injector adopts traditional process for machining, and cost is low, meets the characteristics of thrustor experimental study.
Description of drawings
The plan view of the gas oxygen that Fig. 1 the present invention proposes/methane thrustor platelet injector;
The sectional drawing of the gas oxygen that Fig. 2 the present invention proposes/methane thrustor platelet injector;
The top plate plan view of the gas oxygen that Fig. 3 the present invention proposes/methane thrustor platelet injector;
The flow distribution plate A plan view of the gas oxygen that Fig. 4 the present invention proposes/methane thrustor platelet injector;
The flow distribution plate B plan view of the gas oxygen that Fig. 5 the present invention proposes/methane thrustor platelet injector;
The fuel slab plan view of the gas oxygen that Fig. 6 the present invention proposes/methane thrustor platelet injector;
The oxygenant plate plan view of the gas oxygen that Fig. 7 the present invention proposes/methane thrustor platelet injector.
Among the figure:
1-bolt hole 2-spark plug 3-fuel joint ozzle 4-oxygen connecting-tube nozzle
5-top plate 6-fuel joint ozzle sealing 7-spark plug gasket seal 8-oxygen connecting-tube nozzle gasket seal
Pad
9-border area coolant flow is transferred 10-border area coolant flow 11-flow distribution plate A 12-flow distribution plate B
The joint fixing device is regulated pad
13-fuel slab 14-housing 15-fuel nozzle 16-oxygenant plate
17-through hole A 18-through hole C 19-through hole B 20-ladder hole D
21-freezing mixture tap hole 22-oxygenant tap hole 23-through hole F 24-blind hole I
25-through hole G 26-through hole J 27-annular chamber A 28-through hole K
1
29-through hole K
230-blind hole X 31-through hole M 32-annular chamber B
33-ladder hole R 34-annular chamber C 35-through hole N 36-through hole L
37-ladder hole P 38-annular chamber D 39-ladder hole Q 40-blind hole Y
41-through hole T
Embodiment
The present invention will be further described below in conjunction with accompanying drawing:
The present invention proposes a kind of gas oxygen/methane thrustor platelet injector, as depicted in figs. 1 and 2, mainly comprise: spark plug 2, fuel joint ozzle 3, oxygen connecting-tube nozzle 4, fuel slab 13, oxygenant plate 16, top plate 5, flow distribution plate A11, flow distribution plate B12, border area coolant flow are regulated fixing device 9, the border area coolant flow is regulated pad 10, fuel nozzle 15 and housing 14.Wherein fuel slab 13, oxygenant plate 16, top plate 5, flow distribution plate A11 and flow distribution plate B12 form veneer structure.
Described housing 14 is round structure, the center has through hole a, through hole a inside is welded with flow distribution plate A11, flow distribution plate B12, fuel slab 13 and oxygenant plate 16 in turn, top plate 5 is weldingly connected with the upper surface of flow distribution plate A11, the edge of housing 14 is evenly distributed with a plurality of bolts hole 1, this platelet injector and miscellaneous part can be fixed by bolt hole 1.
Described top plate 5 centers have through hole A17, as shown in Figure 3, through hole A17 bilateral symmetry is distributed with through hole C18 and through hole B19, through hole B19 is connected with oxygen connecting-tube nozzle 4 with fuel joint ozzle 3 respectively with through hole C18, and also be connected with fuel joint ozzle gasket seal 6 between described through hole B19 and the fuel joint ozzle 3, also be connected with oxygen connecting-tube nozzle gasket seal 8 between through hole C18 and the oxygen connecting-tube nozzle 4.
The center of described flow distribution plate A11 has ladder hole D20, and as shown in Figure 4, the aperture of ladder hole D20 top the part of top plate direction (namely towards) is identical with the aperture of through hole A17, and ladder hole D20 is coaxial with through hole A17; The bilateral symmetry of ladder hole D20 is distributed with blind hole I24 and through hole E(freezing mixture tap hole and the subordination of oxygenant tap hole in through hole E).The perforate direction of blind hole I24 is towards top plate 5 directions, when assembling the veneer structure of platelet injector, blind hole I24 is relative with through hole B19, and blind hole I24 is coaxial with through hole B19, inboard adjacent position at blind hole I24 is provided with through hole F23, and blind hole I24 is connected by the recess channels at flow distribution plate A11 in-plane with through hole F23.Described through hole E is relative with the through hole C18 position on the top plate 5, and through hole E is the double-hole structure, and top layer is intercommunicating pore, and bottom is freezing mixture tap hole 21 and oxygenant tap hole 22.Intercommunicating pore by top layer can be shunted air-flow through freezing mixture tap hole 21 and the oxygenant tap hole 22 of bottom, when assembling the veneer structure of platelet injector, the intercommunicating pore of through hole E is relative with top plate 5, and freezing mixture tap hole 21 is relative with flow distribution plate B12 with oxygenant tap hole 22.
The center of described flow distribution plate B12 has through hole G25, as shown in Figure 5, through hole G25 is coaxial with through hole A17 and ladder hole D20, has annular chamber A27 around the through hole G25, when assembling the veneer structure of platelet injector, make annular chamber A27 towards flow distribution plate A11, the arranged outside of annular chamber A27 has blind hole X30, blind hole X30 is connected with annular chamber A27 by the recess channels on the flow distribution plate B12 in-plane, and blind hole X30 is coaxial with through hole F23; Flow distribution plate B12 circumferentially is evenly distributed with a plurality of through hole J26 on the edge, bottom of annular chamber A27, and the number of through hole J26 is preferably more than 12; On the relative position of the freezing mixture tap hole 21 of flow distribution plate B12 and through hole E and oxygenant tap hole 22, be respectively arranged with through hole K
128 and through hole K
229, through hole K
128 is coaxial with freezing mixture tap hole 21, through hole K
2Coaxial with oxygenant tap hole 22, make through freezing mixture tap hole 21 effluent airs by through hole K
128 flow out, and make through oxygenant tap hole 22 effluent airs through through hole K
229 flow out.Be threaded connection the border area coolant flow in the freezing mixture tap hole 21 and regulated fixing device 9, described through hole K
128 and freezing mixture tap hole 21 between be provided with the border area coolant flow and regulate pad 10, the border area coolant flow is regulated pad 10 centers and is had center hole, the size variable of this center hole can be regulated inflow through hole K by regulating border area coolant flow adjusting pad 10
1Gas flow in 28.
Described fuel slab 13 centers have through hole M31, and as shown in Figure 6, through hole M31 is coaxial with through hole G25, through hole A17 and ladder hole D20; The periphery of through hole M31 is provided with annular chamber B32, when assembling the veneer structure of platelet injector, make annular chamber B32 towards flow distribution plate B12, annular chamber A27 equates with the radius of annular chamber B32, the periphery of annular chamber B32 evenly is provided with a plurality of ladder hole R33 that communicate with annular chamber B32 in the circumferential direction of the circle, each ladder hole R33 all is connected with annular chamber B32 by recess channels, and the number of ladder hole R33 is preferably more than 6.Fuel slab 13 has annular chamber C34 in ladder hole R33 arranged outside, the through hole K on annular chamber C34 and the flow distribution plate B
128 positions are (axis that is through hole K1 is positioned on the chamber of annular chamber C) relatively, the bottom even of annular chamber C34 be provided with a plurality of through hole N35, the number of through hole N35 is preferably more than 16.Also be provided with through hole L36 on the fuel slab 13, make through hole L36 and through hole K
229 is coaxial.
Described oxygenant plate 16 centers have ladder hole P37, as shown in Figure 7, ladder hole P37 is coaxial with through hole M31, ladder hole P37 periphery is evenly distributed with a plurality of ladder hole Q39 in the circumferential direction of the circle, ladder hole Q39 is coaxial with ladder hole R33, and ladder hole Q39 equates with ladder hole R33 number, each corresponding ladder hole Q39 and each ladder hole R33 can be combined, form a combined hole, and then fuel nozzle is fixed in the combined hole of ladder hole Q39 and ladder hole R33 formation, and fuel nozzle 15 uses temperature differential methods to be fixed in this combined hole.Oxygenant plate 16 has blind hole Y40 in the side of ladder hole P37, when assembling the veneer structure of platelet injector, blind hole Y40 is relative with fuel slab 13, and blind hole Y40 is coaxial with through hole L36, have annular chamber D38 in the periphery of ladder hole P37, by annular chamber D38 blind hole Y40 is communicated with each ladder hole Q39.The sidewall of oxygenant plate 16 becomes stepped and forms annular chamber E with housing 14 inwalls, and annular chamber E is relative with the through hole N35 position on the fuel slab 13, and through hole N35 and annular chamber E are apart from the equal in length at the center of oxygenant plate 16.Along circumferentially being evenly distributed with a plurality of through hole T41, the number of through hole T41 is preferably more than 20 in the bottom of annular chamber E, is used for the circulation freezing mixture, and the freezing mixture that flows out from through hole T41 is flowed out along the inner wall edge of housing 14, is used for cooling.Spark plug 2 passes through hole A17, ladder hole D20, through hole G25, through hole M31 and ladder hole P37 successively, and is connected with spark plug gasket seal 7 between the ladder hole D20 of spark plug 2 and flow distribution plate A11.
As shown in Figure 2, fuel enters through hole B19, the blind hole I24 on the flow distribution plate A11, through hole F23, the blind hole X30 on the flow distribution plate B12 on the flow distribution plate A11, annular chamber A27, the through hole J26 on the flow distribution plate B12 on the flow distribution plate B12, the annular chamber B32 on the fuel slab 13, the ladder hole R33 on the fuel slab 13 that passes through successively top plate the platelet injector from fuel joint ozzle 4, from the ladder hole R33 of fuel slab 13, finally enter fuel nozzle 15, form the fuel flow circulation passage.Oxygen enters the through hole C18 of top plate from oxygen connecting-tube nozzle 4, form two strands of air-flows by the freezing mixture tap hole 21 among the through hole E on the flow distribution plate A11 and oxygenant tap hole 22 again, and one is as freezing mixture, and another strand is as oxygenant.Enter in turn through hole K on the flow distribution plate B12 as the oxygen of freezing mixture by freezing mixture tap hole 22
128, the through hole T41 on the annular chamber C34 on the fuel slab 13, the through hole N35 on the fuel slab 13, annular chamber E, the oxygenant plate 16 tangentially enters cooling action the firing chamber at last from chamber front end along wall, form coolant flow channel; Enter in turn through hole K on the flow distribution plate B12 as the oxygen of oxygenant by the oxygenant tap hole 21 on the flow distribution plate A11
229, the through hole L36 on the fuel slab 13, the annular chamber D38 on the oxygenant plate 16, the ladder hole Q39 on the oxygenant plate 16 and the gap between the fuel nozzle 15 at last in ladder hole Q39 end and fuel mix, form the oxidant stream circulation passage.
The characteristics of the gas oxygen that the present invention proposes/methane platelet injector maximum are to adopt five veneer structures that fuel and oxygenant are carried out flow-dividing control, fuel and oxygenant are delivered directly in fuel and the coaxial nozzle of oxygenant by separately connecting-tube nozzle, make fuel and oxygenant more fast, mix fully and atomize, be conducive to improve combustion efficiency, improve the response characteristic of motor; And can be by changing fuel and the oxidant stream circulation passage on five blocks of laminates, aperture and the arrangement mode of the ladder hole Q39 on the adjustment fuel slab on ladder hole R33 and the oxygenant plate increase the nozzle number, improve atomization.
Because aperture and the fuel nozzle of the veneer structure of the gas oxygen that the present invention proposes/methane platelet injector are all less, the veneer structure of platelet injector is top plate 5, flow distribution plate A11, flow distribution plate B12, fuel slab 13 and oxygenant plate 16, can be by locating along perpendicular to the direction of veneer structure positioning dowel being installed, with five layer by layer plate structure position, to guarantee positional accuracy.
Claims (8)
1. a gas oxygen and methane thrustor platelet injector is characterized in that: comprise that spark plug, fuel joint ozzle, oxygen connecting-tube nozzle, fuel slab, oxygenant plate, top plate, flow distribution plate A, flow distribution plate B, border area coolant flow are regulated fixing device, the border area coolant flow is regulated pad, fuel nozzle and housing;
Described housing center has through hole a, is welded with in turn flow distribution plate A, flow distribution plate B, fuel slab and oxygenant plate in the through hole a, and the upper surface of top plate and flow distribution plate A is weldingly connected; The top plate center has through hole A, and through hole A bilateral symmetry is distributed with through hole B and through hole C, and through hole B is connected with the fuel joint ozzle, and through hole C is connected with the oxygen connecting-tube nozzle;
Described flow distribution plate A center has ladder hole D, and the bilateral symmetry of ladder hole D is distributed with blind hole I and through hole E; Blind hole I is coaxial with through hole B, is provided with through hole F in the side of blind hole I, and blind hole I communicates by recess channels with through hole F; Through hole E is relative with the through hole C position on the top plate, and through hole E is the double-hole structure, and top layer is intercommunicating pore, and bottom is freezing mixture tap hole and oxygenant tap hole; Described flow distribution plate B center has through hole G, has annular chamber A around the through hole G, and the arranged outside of annular chamber A has blind hole X, blind hole X communicates with annular chamber A, and blind hole X is coaxial with through hole F, and flow distribution plate B is distributed with a plurality of through hole J at the bottom even of annular chamber A, is provided with through hole K on the flow distribution plate B
1With through hole K
2, through hole K
1Coaxial with the freezing mixture tap hole, through hole K
2Coaxial with the oxygenant tap hole; Be threaded connection the border area coolant flow in the freezing mixture tap hole and regulated fixing device, through hole K
1And be provided with the border area coolant flow between the freezing mixture tap hole and regulate pad;
Described fuel slab center has through hole M, is provided with annular chamber B around the through hole M, evenly is provided with a plurality of ladder hole R that communicate with annular chamber B around the annular chamber B; And also be provided with annular chamber C, annular chamber C and through hole K in the annular chamber B outside
1The position is relative, the bottom even of annular chamber C be provided with a plurality of through hole N; Also be provided with through hole L on the fuel slab;
Described oxygenant plate center is provided with ladder hole P, be uniformly distributed with the ladder hole Q that equates with ladder hole R number in the periphery of through hole M, ladder hole Q is coaxial with ladder hole R, fuel nozzle is fixed in the combined hole of ladder hole Q and ladder hole R formation, the outside of a ladder hole P has blind hole Y therein, blind hole Y is coaxial with through hole L, and ladder hole P periphery has annular chamber D, by annular chamber D blind hole Y is communicated with ladder hole Q; The sidewall of oxygenant plate becomes stepped and forms annular chamber E with inner walls, and annular chamber E is relative with the through hole N position on the fuel slab, circumferentially is evenly distributed with a plurality of through hole T on the edge, bottom of annular chamber E; Through hole A, ladder hole D, through hole G, through hole M and ladder hole P are all coaxial in twos, and spark plug passes through hole A, ladder hole D, through hole G, through hole M and ladder hole P successively.
2. a kind of gas oxygen according to claim 1 and methane thrustor platelet injector, it is characterized in that: described border area coolant flow is regulated the pad center and is had center hole, and the center hole aperture adjustment of regulating pad by regulating the border area coolant flow flows into through hole K
1In gas flow.
3. a kind of gas oxygen according to claim 1 and methane thrustor platelet injector, it is characterized in that: described annular chamber A equates with the radius of annular chamber B.
4. a kind of gas oxygen according to claim 1 and methane thrustor platelet injector, it is characterized in that: be connected with fuel joint ozzle gasket seal between described through hole B and the fuel joint ozzle, be connected with oxygen connecting-tube nozzle gasket seal between described through hole C and the oxygen connecting-tube nozzle.
5. a kind of gas oxygen according to claim 1 and methane thrustor platelet injector, it is characterized in that: the ladder hole D of described spark plug and flow distribution plate A is connected with the spark plug gasket seal.
6. a kind of gas oxygen according to claim 1 and methane thrustor platelet injector is characterized in that: described through hole L and through hole K
2Coaxial.
7. a kind of gas gas oxygen according to claim 1 and methane thrustor platelet injector, it is characterized in that: described blind hole X is coaxial with through hole F.
8. a kind of gas oxygen according to claim 1 and methane thrustor platelet injector is characterized in that: described top plate, flow distribution plate A, flow distribution plate B, fuel slab and oxygenant plate by along perpendicular to each layer by layer the direction of plate structure positioning dowel be installed positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110066355 CN102400815B (en) | 2011-03-18 | 2011-03-18 | Layer-board type injection device for oxygen/ methane low-thrust engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110066355 CN102400815B (en) | 2011-03-18 | 2011-03-18 | Layer-board type injection device for oxygen/ methane low-thrust engine |
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| CN102400815A CN102400815A (en) | 2012-04-04 |
| CN102400815B true CN102400815B (en) | 2013-09-18 |
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| CN 201110066355 Expired - Fee Related CN102400815B (en) | 2011-03-18 | 2011-03-18 | Layer-board type injection device for oxygen/ methane low-thrust engine |
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| CN104265507B (en) * | 2014-09-23 | 2016-06-29 | 贵州航天红光机械制造有限公司 | A kind of thrust chamber ejector filler of hydrazine low thrust monopropellant engine |
| CN108343529A (en) * | 2018-03-01 | 2018-07-31 | 中国人民解放军国防科技大学 | Gas film cooling layer plate type injector |
| CN109519303A (en) * | 2018-09-05 | 2019-03-26 | 上海空间推进研究所 | Eccentric variable cross-section flow distribution baffle |
| CN109595097B (en) * | 2018-10-29 | 2020-04-24 | 上海空间推进研究所 | Liquid oxygen and methane engine adopting plug-in valve and control method |
| CN109505711B (en) * | 2018-11-27 | 2020-12-08 | 西北工业大学 | Gas-gas small rocket device for generating high-temperature supersonic gas |
| CN109653901B (en) * | 2018-11-27 | 2021-05-04 | 上海空间推进研究所 | Rocket engine injector housing module |
| CN110242439B (en) * | 2019-05-06 | 2021-02-09 | 上海空间推进研究所 | Engine injector based on laminate diffusion welding, manufacturing method and engine |
| CN113202656B (en) * | 2021-05-28 | 2022-03-04 | 西安航天动力研究所 | Guide plate and injector capable of improving propellant filling synchronism |
| CN114718768B (en) * | 2022-04-02 | 2024-01-12 | 西安航天动力试验技术研究所 | High-temperature high-pressure high-speed high-flow density oxygen-enriched gas treatment system and method |
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| CN101782030A (en) * | 2009-01-19 | 2010-07-21 | 北京航空航天大学 | Multiunit coaxial injector component for test and manufacturing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6584761B2 (en) * | 2000-12-15 | 2003-07-01 | Lockheed Martin Corporation | MAPP gas fuel for flight vehicles having pulse detonation engines and method of use |
| JP4287349B2 (en) * | 2004-09-30 | 2009-07-01 | 三菱重工業株式会社 | Rocket injector |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0953759A2 (en) * | 1998-04-29 | 1999-11-03 | United Technologies Corporation | Injector and ignition system for rocket engines |
| US6116020A (en) * | 1998-10-05 | 2000-09-12 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Injector for liquid fueled rocket engine |
| US7685807B2 (en) * | 2006-09-06 | 2010-03-30 | United Technologies Corporation | Three component injector for kerosene-oxygen rocket engine |
| CN101782030A (en) * | 2009-01-19 | 2010-07-21 | 北京航空航天大学 | Multiunit coaxial injector component for test and manufacturing method |
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| CN102400815A (en) | 2012-04-04 |
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