CN110242439A - Engine ejector filler, manufacturing method and engine based on laminate diffusion welding (DW) - Google Patents
Engine ejector filler, manufacturing method and engine based on laminate diffusion welding (DW) Download PDFInfo
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- CN110242439A CN110242439A CN201910372949.7A CN201910372949A CN110242439A CN 110242439 A CN110242439 A CN 110242439A CN 201910372949 A CN201910372949 A CN 201910372949A CN 110242439 A CN110242439 A CN 110242439A
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- Prior art keywords
- laminate
- ejector filler
- engine
- diffusion welding
- torch
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
- B23K20/023—Thermo-compression bonding
- B23K20/026—Thermo-compression bonding with diffusion of soldering material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
- F02K9/52—Injectors
Abstract
The present invention provides a kind of engine ejector filler, manufacturing method and engines based on laminate diffusion welding (DW), and wherein ejector filler includes laminate (11)；NmA laminate (11) is respectively arranged with the laminate flow passage structure unit of setting；NmA laminate (11) passes sequentially through diffusion welding (DW) interconnection；NmA laminate flow passage structure unit is interconnected to form ejector filler runner in the way of setting；Wherein NmFor the integer greater than 1.Laminate diffusion welding (DW) ejector filler of the invention, it can solve that low temperature rail/attitude control engine ejector filler number of parts existing in the prior art is more, cryogenic propellant is the problem of engine head is easy to happen phase transformation, have the advantages that compact-sized, functional reliability is high simultaneously and realize propellant uniformly, finer atomization, can satisfy low temperature rail/attitude control engine requirement.
Description
Technical field
The present invention relates to Liquid Propellant Rocket Engine fields, and in particular, to a kind of to be started based on laminate diffusion welding (DW)
Machine ejector filler, manufacturing method and engine more particularly to a kind of liquid oxygen and methane engine spray based on laminate diffusion welding (DW)
Device.
Background technique
High-performance, nontoxic cryochemistry Push Technology have become the mainstream development direction of liquid-propellant rocket engine, base
The rocket engine and its propulsion system combined with methane propellant in liquid oxygen, because have highest comprehensive performance (than punching performance,
Reusable performance, Operation and Maintenance and space are stored for a long time), in carrier rocket, spacecraft, star catalogue construction of base
There are broad application prospects in equal fields.
A kind of electronic pump pressure type liquid oxygen methane space propulsion system as disclosed in patent document CN109281774A, including height
Air bottle, LOX tank, methane tank, electrokinetic pump system, oxygen heat exchange spray wands, methane heat exchange spray wands and rail control are started
Machine；Wherein high pressure gas cylinder is connect by first pipe with LOX tank and methane tank；LOX tank and methane tank lead to respectively
It crosses second pipe and third pipeline is connect with electrokinetic pump system；Oxygen heat exchange spray wands are arranged in LOX tank；Methane thermal is handed over
Spray wands are changed to be arranged in methane tank；Electrokinetic pump system is connected by the 4th pipeline and oxygen heat exchange spray wands and precise tracking
It connects；Electrokinetic pump system is connect by the 5th pipeline with methane heat exchange spray wands and precise tracking.
But for liquid oxygen and methane rail/attitude control engine, propellant flow rate is relatively small, is easy heated generation phase
Become, and then the functional reliability of engine can be seriously affected.Therefore, how to ensure the entry condition of propellant and prevent low temperature
Propellant is undergone phase transition in engine head, is the important content of low temperature rail attitude control dynamical system and engine design.
In addition, opposite using dinitrogen tetroxide/Hydrazine fuel combination conventional engine, the double groups of the low temperature such as liquid oxygen and methane
The engine of first nonhypergolic propellant combination needs special ignition system to be just able to achieve the ignition operation of engine, engine knot
Structure is relatively complicated.
Therefore, how to optimize engine structure design and select the processing technology of innovation, reduce number of parts, improve work
Make reliability, is liquid oxygen and methane rail/attitude control engine smooth engineer application important topic.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of engine sprays based on laminate diffusion welding (DW)
Device, manufacturing method and engine.
A kind of engine ejector filler based on laminate diffusion welding (DW) provided according to the present invention, including laminate；
NmA laminate is respectively arranged with the laminate flow passage structure unit of setting；NmA laminate passes sequentially through diffusion
Weldering is connected with each other；NmA laminate flow passage structure unit is interconnected to form ejector filler runner in the way of setting；
Wherein NmFor the integer greater than 1.
Preferably, the ejector filler runner includes oxidant flow channel, fuel flow channel and spray unit；
The oxidant flow channel and fuel flow channel are mutually indepedent；The oxidant flow channel, fuel flow channel respectively with one or
Multiple spray units are connected, and the oxidant flow channel, fuel flow channel pass through spray unit and be in communication with the outside, wherein extraneous
Refer to the outside of the engine ejector filler based on laminate diffusion welding (DW).
Preferably, the ejector filler runner further includes oxidant torch discrimination road, fuel torch discrimination road and torch room；
The oxidant torch discrimination road is connected to oxidant flow channel；The fuel torch discrimination road is connected to fuel flow channel；Institute
It states oxidant torch discrimination road, fuel torch discrimination road and is respectively communicated to torch room；
The torch room is in communication with the outside.
Preferably, the ejector filler runner further includes spray panel；The spray unit is connected with spray panel, and leads to
Spray panel is crossed to be in communication with the outside；The spray panel is directly in communication with the outside.
Preferably, the spray panel includes direct current collision structure and/or direct current self-impacting structure.
Preferably, NmA laminate flow passage structure unit is connected with each other in the way of setting, except forming ejector filler stream
Outside road, vacuum jacket is yet formed；The vacuum clip is set on around ejector filler runner, and is not connected to ejector filler runner.
Preferably, NmFor the integer not less than 10.
A kind of engine provided according to the present invention, which is characterized in that including ejector filler and spark plug；
The ejector filler includes the above-mentioned engine ejector filler based on laminate diffusion welding (DW)；
The spark plug includes sparking-plug electrode；
The spark plug is connected with torch room；The sparking-plug electrode is arranged in torch chamber interior.
Preferably, the engine further includes valve group and thrust chamber；
The valve group includes fuel valve and oxidant valve；The fuel valve, oxidant valve respectively with fuel
Runner, oxidant flow channel are connected；
The thrust chamber is connected with ejector filler, and the spray panel side of ejector filler is arranged in.
A kind of manufacturing method of the engine ejector filler based on laminate diffusion welding (DW) provided according to the present invention, can manufacture
The engine ejector filler based on laminate diffusion welding (DW) stated, comprising:
Laminate etch step: the laminate flow passage structure unit of setting is set on laminate by the method for photoetching；
Stacking for laminated plates step: multiple laminates are stacked according to the sequence and alignment thereof of setting；
Diffusion Welding step: being diffused welding for the laminate folded according to the sequence of setting and alignment thereof heap, is formed
The engine ejector filler based on laminate diffusion welding (DW).
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, the engine ejector filler provided by the invention based on laminate diffusion welding (DW), has that structure is simple, wide usage is strong, spray
The good advantage of effect；
2, the engine ejector filler provided by the invention based on laminate diffusion welding (DW) forms one individually by laminate diffusion welding (DW)
Part, and it is integrated with igniter, it is compact-sized, the number of parts of liquid oxygen and methane engine is greatly reduced, only
The ignition operation of engine can be controlled with a pair of of oxygen/combustion valve, it is easy to operate, and then improve the reliable operation of engine
Property；
3, the engine ejector filler provided by the invention based on laminate diffusion welding (DW) is designed using the structure of vacuum jacket, is had
Effect reduces metallic matrix in ejector filler prevents liquid oxygen from pushing away with low temperature when methane engine work to the leaking heat of cryogenic propellant
It is undergone phase transition in ejector filler runner into agent, eliminates environment temperature to low temperature rail/attitude control engine pulsed operation consistency shadow
It rings；
4, the engine ejector filler provided by the invention based on laminate diffusion welding (DW), laminate diffusion welding craft are easy to implement complexity
And accurate propellant flow passage structure, allow ejector filler using a variety of efficient spray cellular constructions, improve spray element number
And flexible spray unit arrangement is used, and then ensure that uniform liquid oxygen/methane propellant, finer atomization and engine can
By cooling.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram of the engine ejector filler preference provided by the invention based on laminate diffusion welding (DW)；
Fig. 2 is the structural schematic diagram of engine preference provided by the invention；
Fig. 3 is that the process of the manufacturing method preference of the engine ejector filler provided by the invention based on laminate diffusion welding (DW) is shown
It is intended to；
Fig. 4 is that the structure of typical laminate in the engine ejector filler preference provided by the invention based on laminate diffusion welding (DW) is shown
It is intended to；
Fig. 5 is typical vertical ejector filler stream in the engine ejector filler preference provided by the invention based on laminate diffusion welding (DW)
The structural schematic diagram of road vacuum jacket；
Fig. 6 is typical level ejector filler stream in the engine ejector filler preference provided by the invention based on laminate diffusion welding (DW)
The structural schematic diagram of road vacuum jacket；
Fig. 7 be the engine ejector filler preference provided by the invention based on laminate diffusion welding (DW) in typical propellant agent runner and
The three dimensional structure diagram of vacuum jacket；
Fig. 8 is the knot of typical spray unit in the engine ejector filler preference provided by the invention based on laminate diffusion welding (DW)
Structure schematic diagram；
Fig. 9 is the knot of typical spray panel in the engine ejector filler preference provided by the invention based on laminate diffusion welding (DW)
Structure schematic diagram.
It is shown in figure:
Oxidant flow channel 1
Fuel flow channel 2
Oxidant torch discrimination road 3
Fuel torch discrimination road 4
Torch room 5
Spray unit 6
Spray panel 7
Vacuum jacket 10
Laminate 11
Spark plug 200
Sparking-plug electrode 201
Fuel valve 102
Oxidant valve 101
Ejector filler 300
Thrust chamber 400
Fuel F
Oxidant O
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
A kind of engine ejector filler based on laminate diffusion welding (DW) provided according to the present invention, including laminate 11；
NmA laminate 11 is respectively arranged with the laminate flow passage structure unit of setting；NmA laminate 11 passes sequentially through
Diffusion welding (DW) is connected with each other；NmA laminate flow passage structure unit is interconnected to form ejector filler runner in the way of setting；
Wherein NmFor the integer greater than 1.
Specifically, the ejector filler runner includes oxidant flow channel 1, fuel flow channel 2 and spray unit 6；
The oxidant flow channel 1 and fuel flow channel 2 are mutually indepedent；The oxidant flow channel 1, fuel flow channel 2 are respectively with one
A or multiple spray units 6 are connected, and the oxidant flow channel 1, fuel flow channel 2 are in communication with the outside by spray unit 6,
The wherein extraneous outside for referring to the engine ejector filler based on laminate diffusion welding (DW).The ejector filler runner further includes oxidant
Torch discrimination road 3, fuel torch discrimination road 4 and torch room 5；The oxidant torch discrimination road 3 is connected to oxidant flow channel 1；It is described
Fuel torch discrimination road 4 is connected to fuel flow channel 2；The oxidant torch discrimination road 3, fuel torch discrimination road 4 are respectively communicated to torch
Room 5；The torch room 5 is in communication with the outside.The ejector filler runner further includes spray panel 7；The spray unit 6 and spray face
Plate 7 is connected, and is in communication with the outside by spray panel 7；The spray panel 7 is directly in communication with the outside.The spray panel 7
Including direct current collision structure and/or direct current self-impacting structure.NmA laminate flow passage structure unit is in the way of setting
It is connected with each other, in addition to forming ejector filler runner, yet forms vacuum jacket 10；The vacuum jacket 10 is arranged in ejector filler runner
Around, and be not connected to ejector filler runner.NmFor the integer not less than 10.
A kind of engine provided according to the present invention, which is characterized in that including ejector filler 300 and spark plug 200；
The ejector filler 300 includes the above-mentioned engine ejector filler based on laminate diffusion welding (DW)；
The spark plug 200 includes sparking-plug electrode 201；
The spark plug 200 is connected with torch room 5；The sparking-plug electrode 201 is arranged inside torch room 5.
The engine further includes valve group and thrust chamber 400；
The valve group includes fuel valve 102 and oxidant valve 101；The fuel valve 102, oxidant valve
101 are connected with fuel flow channel 2, oxidant flow channel 1 respectively；
The thrust chamber 400 is connected with ejector filler 300, and 7 side of spray panel of ejector filler 300 is arranged in.
A kind of manufacturing method of the engine ejector filler based on laminate diffusion welding (DW) provided according to the present invention, can manufacture
The engine ejector filler based on laminate diffusion welding (DW) stated, comprising:
Laminate etch step: the laminate flow passage structure unit of setting is set on laminate 11 by the method for photoetching；
Stacking for laminated plates step: multiple laminates 11 are stacked according to the sequence and alignment thereof of setting；
Diffusion Welding step: the laminate 11 folded according to the sequence of setting and alignment thereof heap is diffused welding, shape
At the engine ejector filler based on laminate diffusion welding (DW).
Further, preference of the present invention provides a kind of liquid oxygen based on laminate diffusion welding (DW) and methane engine spray
Device, i.e., using liquid oxygen as oxidant O, using methane as fuel F, by NmSpecial 11 (the N of laminate of piecemGenerally >=10 just
Integer) through diffusion welding (DW) one individual part of formation, 11 structure of laminate and thickness are specifically flowed according to different ejector fillers
Road design is customized；Including oxidant flow channel 1, fuel flow channel 2, oxidant torch discrimination road 3, fuel torch discrimination road 4, torch room
5, spray unit 6 and spray panel 7, oxidant flow channel 1 and fuel flow channel 2 are mutually indepedent, and liquid oxygen and liquid methane propellant are flowing
Road end converges to spray unit 6, and enters motor power room 400 through spray panel 7, and oxidant torch discrimination road 3 is provided with
Enter torch room 5 on oxidant flow channel 1 and in the upstream of sparking-plug electrode 201, fuel torch discrimination road 4 is provided with fuel flow channel 2
Above and in sparking-plug electrode 201 downstream into torch room 5.The laminate diffusion welding (DW) ejector filler of preference of the present invention, can solve
Low temperature rail/attitude control engine ejector filler number of parts existing in the prior art is more, cryogenic propellant is easy in engine head
The problem of undergoing phase transition, at the same have the advantages that compact-sized, functional reliability is high and realize propellant uniformly, finer atomization,
It can satisfy low temperature rail/attitude control engine requirement.
As the core component of liquid oxygen and methane engine, the spray based on laminate diffusion welding (DW) of preference offer of the present invention
Device, by NmSpecial 11 (the N of laminate of piecemPositive integer generally >=10) through diffusion welding (DW) one individual part of formation, the layer
Plate diffusion welding (DW) mainly includes laminate precision optics etching, laminate sequence and stacking and three technical process of diffusion welding (DW), the layer
11 structure of plate and thickness are customized according to the specific runner design of different ejector fillers, and typical 11 thickness of laminate includes but unlimited
In 0.05mm, 0.1mm and 0.2mm etc..Pass through 10 sets of reduction sprays of vacuum clip around the oxidant flow channel 1 and fuel flow channel 2
Leaking heat of the metallic matrix to cryogenic propellant in note device.The torch room 5 is located at 300 center of ejector filler, sparking-plug electrode
201 are directly inserted into inside torch room 5, and combined oxidant torch discrimination road 3 and fuel torch discrimination road 4 collectively form integrated torch ignition
Device.The spray unit 6 can be using different direct current collision or straight according to the demand of engine combustion and cools tissue
Self-impacting structure is flowed, while a variety of 7 structures of spray panel can be formed according to the difference of 6 structure of spray unit and arrangement form,
With ensure realize propellant uniformly, finer atomization.
Further, FIG. 1 to FIG. 9 is respectively the liquid oxygen and methane based on laminate diffusion welding (DW) that preference of the present invention provides
The structural schematic diagram of engine ejector filler and its main feature.Core as shown in FIG. 1 to FIG. 9, as liquid oxygen and methane engine
Center portion part, the ejector filler provided by the invention based on laminate diffusion welding (DW), by NmSpecial 11 (the N of laminate of piecemGenerally >=10 just whole
Number) through diffusion welding (DW) one individual part of formation, the laminate diffusion welding (DW) mainly includes laminate precision optics etching, laminate row
Sequence and stacking and three technical process (Fig. 3) of diffusion welding (DW), the structure and thickness of the laminate 11 are according to different spray implement bodies
Runner design be customized, Fig. 4 illustrates the structure of typical laminate 11, and typical laminate thickness includes but is not limited to
0.05mm, 0.1mm and 0.2mm etc..
The liquid oxygen and methane engine ejector filler based on laminate diffusion welding (DW) that preference provides according to the present invention, including oxidation
Agent runner 1, fuel flow channel 2, oxidant torch discrimination road 3, fuel torch discrimination road 4, torch room 5, spray unit 6 and spray panel 7.
The oxidant flow channel 1 and fuel flow channel 2 is mutually indepedent, and liquid oxygen and liquid methane propellant converge to described in flow field end
Spray unit 6, and enter motor power room through the spray panel 7.The oxidant torch discrimination road 3 is provided with oxidation
On agent runner 1, and enter the torch room 5 in the upstream of sparking-plug electrode.The fuel torch discrimination road 4 is provided with fuel
On runner 2, and in sparking-plug electrode downstream into the torch room 5.
Preferably, metal in ejector filler is reduced by vacuum jacket 10 around the oxidant flow channel 1 and fuel flow channel 2
For matrix to the leaking heat of cryogenic propellant, Fig. 5 and Fig. 6 illustrate propellant longitudinal direction runner and the typical vacuum jacket of transverse flow channels
10 structure, Fig. 7 illustrate the three-dimensional structure of the typical oxidant flow channel 1 of ejector filler, fuel flow channel 2 and vacuum jacket 10.
Preferably, the torch room 5 is located at ejector filler center, and sparking-plug electrode is directly inserted into inside torch room 5, in conjunction with
Oxidant torch discrimination road 3 and methane torch discrimination road 4 collectively form integrated torch lighter.
Preferably, the spray unit 6 can be using different straight according to the demand of engine combustion and cools tissue
Collision or direct current self-impacting structure (Fig. 8 illustrates the structure of typical spray unit 6) are flowed, while according to spray unit 6
Structure and arrangement form difference can form the structures of a variety of spray panels 7, and (Fig. 9 illustrates the knot of typical spray panel 7
Structure), with ensure realize propellant uniformly, finer atomization.
The working principle of liquid oxygen provided by the invention based on laminate diffusion welding (DW) and methane engine ejector filler is as follows:
Liquid oxygen valve and methane valve are opened respectively, and liquid oxygen is fills up to described through 1 overwhelming majority of oxidant flow channel
Spray unit 6, fraction through the oxidant torch discrimination road 3 the spray of sparking-plug electrode upstream enter the torch room
5；Liquid methane is fills up to the spray unit 6 through 2 overwhelming majority of fuel flow channel, and fraction is through the liquid methane fire
Torch manifold 4 enters the torch room 5 in the spray of sparking-plug electrode downstream；The oxygen flowed in the annular gap of sparking-plug electrode side
It is ionized by high-tension current, generate initial flame core and downstream propagates, light oxygen and first through blending in sparking-plug electrode downstream
Alkane forms core flame, and core flame constantly diffuses to form lighting-off torch in the torch room 5, and lighting-off torch, which enters, to be pushed away
Liquid oxygen and methane through the spray unit 6 and the atomization of spray panel 7, mixing, engine ignition work are lighted in power room.
The liquid oxygen and methane engine ejector filler based on laminate diffusion welding (DW) that preference of the present invention provides have following excellent
Point:
1, ejector filler forms an individual part by laminate diffusion welding (DW), and integrated with igniter, and structure is tight
It gathers, the number of parts of liquid oxygen and methane engine is greatly reduced, the point of engine can be only controlled with a pair of of oxygen/combustion valve
Firer makees, easy to operate, and then improves the functional reliability of engine.
2, it is designed using the structure of vacuum jacket, the leakage for effectively reducing metallic matrix to cryogenic propellant in ejector filler is hot
Amount, cryogenic propellant is undergone phase transition in ejector filler runner when preventing liquid oxygen from working with methane engine, eliminates environment temperature pair
The influence of low temperature rail/attitude control engine pulsed operation consistency.
3, laminate diffusion welding craft is easy to implement complicated and accurate propellant flow passage structure, allows ejector filler using a variety of
Efficient spray cellular construction improves spray element number and uses flexible spray unit arrangement, and then ensures liquid
Oxygen/methane propellant uniformly, finer atomization and engine reliable it is cooling.
The present invention is suitable for liquid oxygen and methane rocket engine, is particularly suitable for rail/attitude control engine of low thrust, equally
It is also applied for the rocket motor of the low temperature double elements nonhypergolic propellant such as liquid oxygen/liquid hydrogen, liquid oxygen/kerosene or liquid oxygen/alcohol combination
Machine.
In the description of the present application, it is to be understood that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, description the application is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of engine ejector filler based on laminate diffusion welding (DW), which is characterized in that including laminate (11)；
NmA laminate (11) is respectively arranged with the laminate flow passage structure unit of setting；NmA laminate (11) passes sequentially through
Diffusion welding (DW) is connected with each other；NmA laminate flow passage structure unit is interconnected to form ejector filler runner in the way of setting；
Wherein NmFor the integer greater than 1.
2. the engine ejector filler according to claim 1 based on laminate diffusion welding (DW), which is characterized in that the ejector filler stream
Road includes oxidant flow channel (1), fuel flow channel (2) and spray unit (6)；
The oxidant flow channel (1) and fuel flow channel (2) are mutually indepedent；The oxidant flow channel (1), fuel flow channel (2) are respectively
It is connected with one or more spray units (6), and the oxidant flow channel (1), fuel flow channel (2) pass through spray unit
(6) it is in communication with the outside, wherein the extraneous outside for referring to the engine ejector filler based on laminate diffusion welding (DW).
3. the engine ejector filler according to claim 2 based on laminate diffusion welding (DW), which is characterized in that the ejector filler stream
Road further includes oxidant torch discrimination road (3), fuel torch discrimination road (4) and torch room (5)；
The oxidant torch discrimination road (3) is connected to oxidant flow channel (1)；The fuel torch discrimination road (4) and fuel flow channel (2)
Connection；The oxidant torch discrimination road (3), fuel torch discrimination road (4) are respectively communicated to torch room (5)；
The torch room (5) is in communication with the outside.
4. the engine ejector filler according to claim 2 based on laminate diffusion welding (DW), which is characterized in that the ejector filler stream
Road further includes spray panel (7)；The spray unit (6) is connected with spray panel (7), and by spray panel (7) and outer
Boundary's connection；The spray panel (7) is directly in communication with the outside.
5. the engine ejector filler according to claim 4 based on laminate diffusion welding (DW), which is characterized in that the spray panel
It (7) include direct current collision structure and/or direct current self-impacting structure.
6. the engine ejector filler according to any one of claim 1 to 5 based on laminate diffusion welding (DW), which is characterized in that Nm
A laminate flow passage structure unit is connected with each other in the way of setting, in addition to forming ejector filler runner, yet forms vacuum
Collet (10)；Vacuum jacket (10) setting is connected to around ejector filler runner, and not with ejector filler runner.
7. the engine ejector filler according to any one of claim 1 to 5 based on laminate diffusion welding (DW), which is characterized in that Nm
For the integer not less than 10.
8. a kind of engine, which is characterized in that including ejector filler (300) and spark plug (200)；
The ejector filler (300) includes the engine spray described in any one of claims 1 to 7 based on laminate diffusion welding (DW)
Device；
The spark plug (200) includes sparking-plug electrode (201)；
The spark plug (200) is connected with torch room (5)；Sparking-plug electrode (201) setting is internal in torch room (5).
9. engine according to claim 8, which is characterized in that the engine further includes valve group and thrust chamber
(400)；
The valve group includes fuel valve (102) and oxidant valve (101)；The fuel valve (102), oxidant valve
(101) it is connected respectively with fuel flow channel (2), oxidant flow channel (1)；
The thrust chamber (400) is connected with ejector filler (300), and is arranged in spray panel (7) side of ejector filler (300).
10. a kind of manufacturing method of the engine ejector filler based on laminate diffusion welding (DW), which is characterized in that being capable of manufacturing claims
Based on the engine ejector filler of laminate diffusion welding (DW) described in any one of 1 to 7, comprising:
Laminate etch step: the laminate flow passage structure unit of setting is set on laminate (11) by the method for photoetching；
Stacking for laminated plates step: multiple laminates (11) are stacked according to the sequence and alignment thereof of setting；
Diffusion Welding step: being diffused welding for the laminate (11) folded according to the sequence of setting and alignment thereof heap, is formed
The engine ejector filler based on laminate diffusion welding (DW).
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| CN201910372949.7A CN110242439B (en) | 2019-05-06 | 2019-05-06 | Engine injector based on laminate diffusion welding, manufacturing method and engine |
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| CN110242439B CN110242439B (en) | 2021-02-09 |
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| US3863442A (en) * | 1970-03-24 | 1975-02-04 | Us Navy | Annular sheet and variable area injection |
| US6082098A (en) * | 1998-04-29 | 2000-07-04 | United Technologies Corporation | Ignition system for rocket engines |
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| CN102400815A (en) * | 2011-03-18 | 2012-04-04 | 北京航空航天大学 | Layer-board type injection device for oxygen/ methane low-thrust engine |
| CN109386400A (en) * | 2018-12-07 | 2019-02-26 | 上海空间推进研究所 | A kind of laser torch lighter for liquid oxygen/methane engine |
| CN109604803A (en) * | 2018-12-07 | 2019-04-12 | 上海空间推进研究所 | A kind of diffusion welding method for propulsion subsystem engine head |
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