CN110360073B - Anode gas distributor of electric thruster - Google Patents
Anode gas distributor of electric thruster Download PDFInfo
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- CN110360073B CN110360073B CN201910652963.2A CN201910652963A CN110360073B CN 110360073 B CN110360073 B CN 110360073B CN 201910652963 A CN201910652963 A CN 201910652963A CN 110360073 B CN110360073 B CN 110360073B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H—PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H1/00—Using plasma to produce a reactive propulsive thrust
- F03H1/0006—Details applicable to different types of plasma thrusters
- F03H1/0012—Means for supplying the propellant
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Abstract
The application discloses electric thruster gas distributor, including first welding screw, second welding screw, first intake pipe, the second intake pipe, first intake pipe fixing base, second intake pipe fixing base, the distributor goes to the bottom, the distributor upper base, wherein, be provided with many pairs of fixed keyway on the inside and outside circumference that the distributor goes to the bottom, circumference gas transmission groove, first inlet port, the second inlet port, first counter bore, the second counter bore, radial gas transmission groove, be provided with the fixed key that corresponds with many pairs of fixed keyway on the inside and outside circumference of distributor upper base, 0.32mm jet hole, 0.46mm jet hole, 0.56mm jet hole, 0.6mm jet slit, 1mm spoiler. Through the technical scheme of the invention, the distribution of the gas flow can be controlled, so that more uniform gas distribution is realized, and a uniform and stable neutral particle environment is provided for the electric thruster.
Description
Technical Field
The invention belongs to the technical field of electric propulsion, and particularly relates to an air distributor of an electric thruster.
Background
The electric propulsion technology is more and more widely applied in aerospace activities due to the advantages of high specific impulse, long service life, small size and the like. With the development of microsatellites in recent years, small-sized electric thrusters have been gradually developed. The miniaturization of the electric thruster results in a smaller discharge channel size, which causes difficulties in the design of the anode gas distributor. Traditional porous formula electric thruster gas distributor's pneumatic design can make propellant gas circumference and radial distribution inhomogeneous in the discharge channel, leads to near the inlet line export propellant gas density be higher than other regions far away, makes the discharge channel neutral particle environment inhomogeneous from this, and plasma discharges inhomogeneously, and electron aggravates to the flow of positive pole, has caused the decline of electric thruster efficiency.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides an anode gas distributor of an electric thruster, which is provided with a circumferential gas transmission groove, a radial gas transmission groove, a jet hole and a slit which are combined to give out gas. In order to achieve the technical purpose, the specific technical scheme of the invention is as follows:
the anode gas distributor of the electric thruster is characterized by comprising a first welding screw, a second welding screw, a first air inlet pipe, a second air inlet pipe, a first air inlet pipe fixing seat, a second air inlet pipe fixing seat, a distributor lower bottom and a distributor upper bottom, wherein the distributor lower bottom and the distributor upper bottom are both disc-shaped;
the inner circumference and the outer circumference of the lower bottom of the distributor are provided with a plurality of pairs of fixed key slots, and the lower bottom of the distributor is provided with a circumferential gas transmission groove, a first gas inlet hole, a second gas inlet hole, a first counter bore, a second counter bore and a radial gas transmission groove;
a plurality of pairs of fixed keys corresponding to the plurality of pairs of fixed key grooves are arranged on the inner circumference and the outer circumference of the upper bottom of the distributor, and the upper bottom of the distributor is provided with a jet hole of 0.32mm, a jet hole of 0.46mm, a jet hole of 0.56mm, a jet slit of 0.6mm and a spoiler of 1 mm;
the first air inlet hole and the second air inlet hole are symmetrical about the center of a circle of the distributor base, the first counter bore and the second counter bore are symmetrical about the center of a circle of the distributor base, and the connecting line of the first air inlet hole and the second air inlet hole is perpendicular to the connecting line of the first counter bore and the second counter bore;
the first welding screw is inserted into the first counter bore and welded and fixed, and the second welding screw is inserted into the second counter bore and welded and fixed;
the first air inlet pipe penetrates through the first air inlet pipe fixing seat and is welded and sealed, and the first air inlet pipe fixing seat is welded and fixed on the lower bottom of the distributor and is concentrically aligned with the first air inlet hole; the second air inlet pipe penetrates through the second air inlet pipe fixing seat and is welded and sealed, and the second air inlet pipe fixing seat is welded and fixed on the lower bottom of the distributor and is concentrically aligned with the second air inlet hole;
setting a connecting line between the first air inlet hole and the center of the bottom of the distributor as a 0-degree reference, setting a connecting line between the second welding screw and the center of the bottom of the distributor as 90 degrees, setting a connecting line between the second air inlet hole and the center of the bottom of the distributor as 180 degrees, and setting a corresponding position of the connecting line between the first welding screw and the center of the bottom of the distributor as 270 degrees;
the inner circumference and the outer circumference of the lower bottom of the distributor are respectively provided with a pair of fixed key slots at the positions of 20.5 degrees, 90 degrees, 159.5 degrees, 200.5 degrees, 270 degrees and 339.5 degrees of the lower bottom of the distributor, and the corresponding positions of the upper bottom of the distributor are provided with fixed keys;
the joints of the inner circumference and the outer circumference of the lower bottom of the distributor and the upper bottom of the distributor are fixed and sealed by welding,
the distributor is characterized in that an inner ring annular groove, a middle annular groove and an outer ring annular groove are formed in the lower bottom of the distributor, the middle annular groove is the circumferential gas transmission groove, and the plurality of radial gas transmission grooves arranged along the wall of the circumferential gas transmission groove are communicated with the circumferential gas transmission groove;
the diameters of the 0.32mm jet hole, the 0.46mm jet hole and the 0.56mm jet hole are 0.32mm, 0.46mm and 0.56mm respectively, and the height of the 1mm spoiler 15 is 1 mm;
the 0.32mm jet hole, the 0.46mm jet hole and the 0.56mm jet hole are sequentially arranged at positions of 12 degrees, 30 degrees and 44 degrees of the upper bottom of the distributor, the 0.56mm jet hole, the 0.46mm jet hole and the 0.32mm jet hole are sequentially arranged at positions of 136 degrees, 150 degrees and 168 degrees of the upper bottom of the distributor, the 0.32mm jet hole, the 0.46mm jet hole and the 0.56mm jet hole are sequentially arranged at positions of 192 degrees, 210 degrees and 224 degrees of the upper bottom of the distributor, and the 0.56mm jet hole, the 0.46mm jet hole and the 0.32mm jet hole are sequentially arranged at positions of 316 degrees, 330 degrees and 348 degrees of the upper bottom of the distributor;
the 0.6mm jet slits are two arc slits, the positions of the upper bottom of the distributor are respectively 66-114 degrees and 246-294 degrees, and the widths of the two arc slits are 0.6 mm;
the 1mm spoiler is arranged at the positions of 0-47 degrees, 133-227 degrees and 313-360 degrees of the upper bottom of the distributor and at the positions corresponding to the inner ring annular groove and the outer ring annular groove of the lower bottom of the distributor on the inner circumference and the outer circumference of the upper bottom of the distributor.
Further, in the clockwise direction within the range of 0-90 degrees and 180-270 degrees of the lower bottom of the distributor, the radial gas transmission groove divides the circumferential gas transmission groove into 4 sectors, the central angle of each sector is 17.5 degrees, 27.5 degrees, 20 degrees and 10 degrees in sequence, and the corresponding central angle of the radial gas transmission groove is 2 degrees, 5 degrees and 6 degrees in sequence; in the range of 90-180 degrees and 270-0 degrees of the lower bottom of the distributor, the radial gas transmission grooves divide the circumferential gas transmission grooves into 4 fan channels in the clockwise direction, the central angle of each fan channel is 10 degrees, 20 degrees, 27.5 degrees and 17.5 degrees in sequence, and the central angles of the corresponding radial gas transmission grooves are 6 degrees, 5 degrees, 2 degrees and 2 degrees in sequence.
Further, the plurality of pairs of fixing key grooves are 6 pairs, the plurality of pairs of fixing keys are 6 pairs, a central angle of each fixing key provided on the outer circumference of the upper bottom of the distributor is 9 °, and a central angle of each fixing key provided on the inner circumference of the upper bottom of the distributor is 8 °.
Furthermore, the outer diameter of the lower bottom of the distributor and the outer diameter of the upper bottom of the distributor are both 42mm, the inner diameter of the lower bottom of the distributor is both 26mm, and the lower bottom of the distributor is made of stainless steel.
The invention has the beneficial effects that:
1. the optimal inhibition effect on the gas flow at the position near the gas inlet hole can be realized by arranging the circumferential gas transmission groove, the radial gas transmission groove, the jet hole of 0.32mm, the jet hole of 0.46mm, the jet hole of 0.56mm and the jet slit of 0.6mm, so that a part of the flow rate is transferred to the position far away from the gas inlet hole at the downstream, the inhibition effect is further enhanced by arranging the flow blocking plate of 1mm, and the combination of the grooving drainage method and the small hole combined interception method is realized by arranging the circumferential gas transmission groove, the radial gas transmission groove, the jet hole, the jet slit and the flow blocking plate together, so that the gas distribution in the discharge channel of the electric thruster is more uniform, and the distance required by uniform distribution is shortened;
2. the invention obtains the detailed parameters and positions of the jet hole, the jet slit and the spoiler through accurate calculation and design, and the COMSOL software free molecular flow module simulation calculation proves that the gas distributor of the electric thruster can ensure that the propellant gas entering a discharge channel can achieve the radial and circumferential uniform effect after being axially diffused by 5-6 mm, can achieve the uniform distribution effect only by shorter axial length, and can shorten by 1-2mm compared with the prior art;
3. the double-pipe air inlet has simple and stable structure, does not need an additional gas storage chamber or a buffer cavity, and reduces the complexity of an anode gas circuit matched with the double-pipe air inlet;
4. the welding is fixed, easy operation, and the gas distributor that the welding is good has good structural strength and anti vibration performance.
Drawings
In order to illustrate embodiments of the present invention or technical solutions in the prior art more clearly, the drawings which are needed in the embodiments will be briefly described below, so that the features and advantages of the present invention can be understood more clearly by referring to the drawings, which are schematic and should not be construed as limiting the present invention in any way, and for a person skilled in the art, other drawings can be obtained on the basis of these drawings without any inventive effort. Wherein:
FIG. 1 is an assembly view of an anode gas distributor for an electric thruster according to the present invention;
FIG. 2 is a cross-sectional view (taken along the axis of symmetry) of an electric thruster anode gas distributor according to the invention;
FIG. 3 is a bottom view of the anode gas distributor of the electric thruster of the present invention;
fig. 4 is a distributor-upper bottom structure view (front side) of an anode gas distributor of an electric thruster of the present invention.
Fig. 5 is a distributor-upper bottom structure view (back side) of an anode gas distributor of an electric thruster according to the present invention.
The reference numbers illustrate:
1-a first weld screw; 1' -a second weld screw; 2-a first inlet pipe; 2' -a second inlet pipe; 3-a first air inlet pipe fixing seat; 3' -a second air inlet pipe fixing seat; 4-the bottom of the distributor; 5-distributor upper bottom; 6-fixing the key slot; 7-circumferential gas transmission groove; 8-a first air inlet; 8' -a second intake hole; 9-radial gas transmission groove; 10-a fixed bond; 11-0.32mm jet hole; 12-0.46mm jet hole; jet holes of 13-0.56 mm; a 14-0.6mm jet slit; 15-1mm spoiler.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
As shown in fig. 1-5, the anode gas distributor of an electric thruster according to an embodiment of the present invention is characterized by comprising a first welding screw 1, a second welding screw 1 ', a first gas inlet pipe 2, a second gas inlet pipe 2 ', a first gas inlet pipe fixing seat 3, a second gas inlet pipe fixing seat 3 ', a distributor lower bottom 4, and a distributor upper bottom 5, wherein,
the lower bottom 4 and the upper bottom 5 of the distributor are both disc-shaped;
the inner circumference and the outer circumference of the distributor bottom 4 are provided with a plurality of pairs of fixed key slots 6, and the distributor bottom 4 is provided with a circumferential air transmission slot 7, a first air inlet hole 8, a second air inlet hole 8', a first counter bore (not shown), a second counter bore (not shown) and a radial air transmission slot 9;
a plurality of pairs of fixed keys 10 corresponding to the plurality of pairs of fixed key grooves 6 are arranged on the inner circumference and the outer circumference of the distributor upper bottom 5, and the distributor upper bottom 5 is provided with a jet hole 11 of 0.32mm, a jet hole 12 of 0.46mm, a jet hole 13 of 0.56mm, a jet slit 14 of 0.6mm and a spoiler 15 of 1 mm;
the first air inlet hole 8 and the second air inlet hole 8 'are centrosymmetric about the center of the circle of the distributor base 4, the first counter bore (not shown) and the second counter bore (not shown) are centrosymmetric about the center of the circle of the distributor base 4, and the connecting line of the first air inlet hole 8 and the second air inlet hole 8' is vertical to the connecting line of the first counter bore (not shown) and the second counter bore (not shown);
a first welding screw 1 is inserted into a first counter bore (not shown) and is welded and fixed, and a second welding screw 1' is inserted into a second counter bore (not shown) and is welded and fixed;
the first air inlet pipe 8 penetrates through the first air inlet pipe fixing seat 3 and is welded and sealed, and the first air inlet pipe fixing seat 3 is welded and fixed on the lower bottom 4 of the distributor and is aligned with the first air inlet hole 8 in a concentric mode; the second air inlet pipe 8 'penetrates through the second air inlet pipe fixing seat 3' and is welded and sealed, and the second air inlet pipe fixing seat 3 'is welded and fixed on the lower bottom 4 of the distributor and is concentrically aligned with the second air inlet hole 8';
setting a connecting line of a first air inlet hole 8 and the center of a circle 4 of the distributor bottom as a 0-degree reference, setting a connecting line of a second welding screw 1 'and the center of a circle 4 of the distributor bottom as 90 degrees, setting a connecting line of a second air inlet hole 8' and the center of a circle 4 of the distributor bottom as 180 degrees, and setting a corresponding position of the connecting line of the first welding screw 1 and the center of a circle 4 of the distributor bottom as 270 degrees;
a pair of fixed key grooves 6 are respectively arranged on the inner circumference and the outer circumference of the distributor bottom 4 at the positions of 20.5 degrees, 90 degrees, 159.5 degrees, 200.5 degrees, 270 degrees and 339.5 degrees of the distributor bottom 4, and a fixed key 10 is arranged at the corresponding position of the distributor top 5;
the joint between the inner circumference and the outer circumference of the distributor lower bottom 4 and the distributor upper bottom 5 is fixed and sealed by welding, the distributor lower bottom 4 is provided with an inner ring annular groove, a middle annular groove and an outer ring annular groove, the middle annular groove is a circumferential gas transmission groove 7, and a plurality of radial gas transmission grooves 9 arranged along the groove wall of the circumferential gas transmission groove 7 are communicated with the circumferential gas transmission groove 7;
the diameters of the 0.32mm jet hole 11, the 0.46mm jet hole 12 and the 0.56mm jet hole 13 are 0.32mm, 0.46mm and 0.56mm respectively, and the height of the 1mm spoiler 15 is 1 mm;
the jet holes 11 with the diameter of 0.32mm, the jet holes 12 with the diameter of 0.46mm and the jet holes 13 with the diameter of 0.56mm are sequentially arranged at the positions of 12 degrees, 30 degrees and 44 degrees of the upper bottom 5 of the distributor, the jet holes 13 with the diameter of 0.56mm, the jet holes 12 with the diameter of 0.46mm and the jet holes 11 with the diameter of 0.32mm are sequentially arranged at the positions of 136 degrees, 150 degrees and 168 degrees of the upper bottom 5 of the distributor, the jet holes 11 with the diameter of 0.32mm, the jet holes 12 with the diameter of 0.46mm and the jet holes 13 with the diameter of 0.56mm are sequentially arranged at the positions of 192 degrees, 210 degrees and 224 degrees of the upper bottom 5 of the distributor, and the jet holes 13 with the diameter of 0.56mm, 12 with the diameter of 0.46mm and 11;
the 0.6mm jet slits 14 are two arc slits, the positions of the upper bottom 5 of the distributor are respectively 66-114 degrees and 246-294 degrees, and the widths of the two arc slits are 0.6 mm;
Through the circumferential gas transmission groove 7 and the radial gas transmission grooves 9 with different positions and widths of the distributor lower bottom 4, the flowing of large-flow neutral gas can be inhibited, and the uniform propellant gas distribution in a discharge channel is realized.
The flow distribution is controlled by the jet holes 11 of 0.32mm, 12 of 0.46mm, 13 of 0.56mm and the jet slits 14 of 0.6mm at the upper bottom of the distributor, the jet holes at different positions have different sizes, the closer to the first air inlet hole 8 and the second air inlet hole 8', the more sparsely the jet holes are distributed, the smaller the hole diameter is, and the stronger the flow inhibition effect is. In addition, the cross-sectional area of the throat channel leading to the inner ring annular groove and the outer ring annular groove is reduced by the spoiler 15 with the diameter of 1mm, and the flow of the upstream outlet air is further inhibited.
In some embodiments, in the clockwise direction within the range of 0 ° -90 °, 180 ° -270 ° of the distributor bottom 4, the radial gas transmission groove 9 divides the circumferential gas transmission groove 7 into 4 sectors, the central angle of each sector is 17.5 °, 27.5 °, 20 °, 10 ° in sequence, and the central angle of the corresponding radial gas transmission groove 9 is 2 °, 5 °, 6 ° in sequence; in the range of 90 degrees to 180 degrees and 270 degrees to 0 degrees of the distributor bottom 4, the radial air transmission grooves 9 divide the circumferential air transmission groove 7 into 4 fan paths in the clockwise direction, the central angle of each fan path is 10 degrees, 20 degrees, 27.5 degrees and 17.5 degrees in sequence, and the central angle of the corresponding radial air transmission groove 9 is 6 degrees, 5 degrees, 2 degrees and 2 degrees in sequence.
Propellant gas enters the annular circumferential gas transmission groove 7 through the first gas inlet holes 8 and the second gas inlet holes 8', diffuses along the circumferential direction, radial gas transmission grooves 9 with different widths are arranged at different positions in the circumferential direction, so that the propellant gas in the circumferential gas transmission groove 7 diffuses in the radial direction, enters throats on the inner side and the outer side, and is finally discharged through the jet holes 11 with the diameter of 0.32mm, the jet holes 12 with the diameter of 0.46mm, the jet holes 13 with the diameter of 0.56mm and the jet slits 14 with the diameter of 0.6 mm.
In some embodiments, the plurality of pairs of fixing key grooves is 6 pairs, the plurality of pairs of fixing keys is 6 pairs, a central angle of each fixing key provided on the outer circumference of the upper base of the dispenser is 9 °, and a central angle of each fixing key provided on the inner circumference of the upper base of the dispenser is 8 °.
In some embodiments, the bottom of the distributor and the bottom of the distributor are both 42mm in outside diameter and 26mm in inside diameter, stainless steel.
In the process of assembling the gas distributor and the discharge channel, the first welding screw 1 penetrates through the discharge channel and is screwed with the external nut, the gas distributor and the discharge channel are fixed together, the assembly can be completed, and at the moment, the complete electric thruster can be obtained only by assembling other parts of the electric thruster.
The performance of the distributor is evaluated by COMSOL software free molecular flow module simulation calculation, and the calculation result shows that after the gas distributor of the electric thruster is used, propellant gas entering a discharge channel can achieve the radial and circumferential uniform effect after being axially diffused by 5-6 mm, the uniform distribution effect can be achieved only by a short axial length, and compared with the prior art, the radial and circumferential uniform distribution effect can be shortened by 1-2 mm.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, a first feature being "on," "above" or "over" a second feature includes the first feature being directly on or obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under", beneath and "under" a second feature includes the first feature being directly under and obliquely under the second feature, or simply means that the first feature is at a lesser elevation than the second feature.
In the present invention, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An anode gas distributor of an electric thruster is characterized by comprising a first welding screw, a second welding screw, a first gas inlet pipe, a second gas inlet pipe, a first gas inlet pipe fixing seat, a second gas inlet pipe fixing seat, a distributor lower bottom and a distributor upper bottom, wherein,
the lower bottom of the distributor and the upper bottom of the distributor are both disc-shaped;
the inner circumference and the outer circumference of the lower bottom of the distributor are provided with a plurality of pairs of fixed key slots, and the lower bottom of the distributor is provided with a circumferential gas transmission groove, a first gas inlet hole, a second gas inlet hole, a first counter bore, a second counter bore and a radial gas transmission groove;
a plurality of pairs of fixed keys corresponding to the plurality of pairs of fixed key grooves are arranged on the inner circumference and the outer circumference of the upper bottom of the distributor, and the upper bottom of the distributor is provided with a jet hole of 0.32mm, a jet hole of 0.46mm, a jet hole of 0.56mm, a jet slit of 0.6mm and a spoiler of 1 mm;
the first air inlet hole and the second air inlet hole are symmetrical about the center of a circle of the distributor base, the first counter bore and the second counter bore are symmetrical about the center of a circle of the distributor base, and the connecting line of the first air inlet hole and the second air inlet hole is perpendicular to the connecting line of the first counter bore and the second counter bore;
the first welding screw is inserted into the first counter bore and welded and fixed, and the second welding screw is inserted into the second counter bore and welded and fixed;
the first air inlet pipe penetrates through the first air inlet pipe fixing seat and is welded and sealed, and the first air inlet pipe fixing seat is welded and fixed on the lower bottom of the distributor and is concentrically aligned with the first air inlet hole; the second air inlet pipe penetrates through the second air inlet pipe fixing seat and is welded and sealed, and the second air inlet pipe fixing seat is welded and fixed on the lower bottom of the distributor and is concentrically aligned with the second air inlet hole;
setting a connecting line between the first air inlet hole and the center of the bottom of the distributor as a 0-degree reference, setting a connecting line between the second welding screw and the center of the bottom of the distributor as 90 degrees, setting a connecting line between the second air inlet hole and the center of the bottom of the distributor as 180 degrees, and setting a corresponding position of the connecting line between the first welding screw and the center of the bottom of the distributor as 270 degrees;
the inner circumference and the outer circumference of the lower bottom of the distributor are respectively provided with a pair of fixed key slots at the positions of 20.5 degrees, 90 degrees, 159.5 degrees, 200.5 degrees, 270 degrees and 339.5 degrees of the lower bottom of the distributor, and the corresponding positions of the upper bottom of the distributor are provided with fixed keys;
the joint between the inner circumference and the outer circumference of the lower bottom of the distributor and the upper bottom of the distributor is fixedly sealed by welding, the lower bottom of the distributor is provided with an inner ring annular groove, a middle annular groove and an outer ring annular groove, the middle annular groove is the circumferential gas transmission groove, and a plurality of radial gas transmission grooves arranged along the wall of the circumferential gas transmission groove are communicated with the circumferential gas transmission groove;
the diameters of the 0.32mm jet hole, the 0.46mm jet hole and the 0.56mm jet hole are 0.32mm, 0.46mm and 0.56mm respectively, and the height of the 1mm spoiler 15 is 1 mm;
the 0.32mm jet hole, the 0.46mm jet hole and the 0.56mm jet hole are sequentially arranged at positions of 12 degrees, 30 degrees and 44 degrees of the upper bottom of the distributor, the 0.56mm jet hole, the 0.46mm jet hole and the 0.32mm jet hole are sequentially arranged at positions of 136 degrees, 150 degrees and 168 degrees of the upper bottom of the distributor, the 0.32mm jet hole, the 0.46mm jet hole and the 0.56mm jet hole are sequentially arranged at positions of 192 degrees, 210 degrees and 224 degrees of the upper bottom of the distributor, and the 0.56mm jet hole, the 0.46mm jet hole and the 0.32mm jet hole are sequentially arranged at positions of 316 degrees, 330 degrees and 348 degrees of the upper bottom of the distributor;
the 0.6mm jet slits are two arc slits, the positions of the upper bottom of the distributor are respectively 66-114 degrees and 246-294 degrees, and the widths of the two arc slits are 0.6 mm;
the 1mm spoiler is arranged at the positions of 0-47 degrees, 133-227 degrees and 313-360 degrees of the upper bottom of the distributor and at the positions corresponding to the inner ring annular groove and the outer ring annular groove of the lower bottom of the distributor on the inner circumference and the outer circumference of the upper bottom of the distributor.
2. The anode gas distributor of electric thruster as recited in claim 1, wherein said radial gas delivery slots divide said circumferential gas delivery slots into 4 sectors in the clockwise direction within the range of 0 ° -90 °, 180 ° -270 ° of the bottom of said distributor, the central angle of each sector being in turn 17.5 °, 27.5 °, 20 °, 10 °, the central angle of the corresponding radial gas delivery slot being in turn 2 °, 5 °, 6 °; in the range of 90-180 degrees and 270-0 degrees of the lower bottom of the distributor, the radial gas transmission grooves divide the circumferential gas transmission grooves into 4 fan channels in the clockwise direction, the central angle of each fan channel is 10 degrees, 20 degrees, 27.5 degrees and 17.5 degrees in sequence, and the central angles of the corresponding radial gas transmission grooves are 6 degrees, 5 degrees, 2 degrees and 2 degrees in sequence.
3. The anode gas distributor of an electric thruster as set forth in claim 1 or 2, wherein the plurality of pairs of fixing key grooves are 6 pairs, the plurality of pairs of fixing keys are 6 pairs, the central angle of each fixing key provided on the outer circumference of the upper base of the distributor is 9 °, and the central angle of each fixing key provided on the inner circumference of the upper base of the distributor is 8 °.
4. An anode gas distributor for an electric thruster as claimed in claim 1 or 2, wherein the outer diameter of the bottom of the distributor and the inner diameter of the top of the distributor are both 42mm and 26mm, respectively, and are made of stainless steel.
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| CN201910652963.2A CN110360073B (en) | 2019-07-19 | 2019-07-19 | Anode gas distributor of electric thruster |
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| CN111140400B (en) * | 2019-12-23 | 2021-10-22 | 北京航空航天大学 | Anode air inlet assembly of electric propulsion engine |
| CN112012898B (en) * | 2020-08-12 | 2021-08-10 | 北京控制工程研究所 | External distributor anode integrated structure of passageway for low-power Hall thruster |
| CN112412721B (en) * | 2020-11-10 | 2021-08-31 | 北京航空航天大学 | Closable grid system with diaphragm valve |
| CN114975909B (en) * | 2022-04-06 | 2024-04-19 | 江苏博迁新材料股份有限公司 | Production method of carbon-coated nano silicon powder used as lithium ion battery negative electrode material |
| CN115283867A (en) * | 2022-07-21 | 2022-11-04 | 上海蓝箭鸿擎科技有限公司 | Method for assembling an anode distributor for an electrically propelled gas |
| CN115681056B (en) * | 2023-01-03 | 2023-06-02 | 国科大杭州高等研究院 | Reverse injection gas distributor |
| CN115681059B (en) * | 2023-01-03 | 2023-06-06 | 国科大杭州高等研究院 | Electric thruster with reverse air intake, space equipment and propulsion method thereof |
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| JP2004084487A (en) * | 2002-08-23 | 2004-03-18 | Ishikawajima Harima Heavy Ind Co Ltd | Gas manifold for plasma accelerator |
| DE102004014618B3 (en) * | 2004-03-23 | 2005-11-10 | Eads Space Transportation Gmbh | Electrothermal impulse engine |
| FR2912836B1 (en) * | 2007-02-21 | 2012-11-30 | Snecma | TRANSMITTER FOR ION PROPELLER. |
| CN106640569B (en) * | 2016-11-21 | 2019-10-22 | 北京控制工程研究所 | A kind of double-hole plate gas distributor easily assembled |
| CN107165793B (en) * | 2017-06-12 | 2019-10-01 | 北京航空航天大学 | A kind of electric propulsion engine gas distributor |
| CN109630368A (en) * | 2018-11-28 | 2019-04-16 | 北京控制工程研究所 | High-power complementary field magnetomotive plasma thruster anode high efficient heat exchanging structure |
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2019
- 2019-07-19 CN CN201910652963.2A patent/CN110360073B/en active Active
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