CN115711209A - Compensation type gas distributor and electric thruster - Google Patents
Compensation type gas distributor and electric thruster Download PDFInfo
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- CN115711209A CN115711209A CN202310000699.0A CN202310000699A CN115711209A CN 115711209 A CN115711209 A CN 115711209A CN 202310000699 A CN202310000699 A CN 202310000699A CN 115711209 A CN115711209 A CN 115711209A
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Abstract
The invention provides a compensation type gas distributor and an electric thruster, and belongs to the technical field of space equipment thrusters. The gas distributor comprises: a dispenser body; an air inlet passage provided on the dispenser body; an air outlet channel disposed on the distributor body; a buffer chamber disposed within the dispenser body; at least two buffer cavities are communicated in series between the air inlet channel and the air outlet channel; the communication hole is communicated between two adjacent buffer cavities; a plurality of communication holes are distributed between two adjacent buffer cavities, and a near-end communication hole closest to the gas inlet channel and a far-end communication hole farthest from the gas inlet channel are divided on a gas flow path; the diameter of the distal communication hole is larger than that of the proximal communication hole. The device overcomes the defects that the air flow of the air distributor close to the buffer cavity vent hole of the air inlet channel is larger, and the air flow of the buffer cavity vent hole far away from the air inlet channel is smaller, so that the overall air outlet of the device is not uniform.
Description
Technical Field
The invention relates to the technical field of space equipment thrusters, in particular to a compensation type gas distributor and an electric thruster.
Background
The electric thruster is a propulsion device which drives working medium to jet by electric power, wherein the most important type is a Hall thruster. The Hall thruster is a propulsion device which utilizes the action of an electromagnetic field to realize the acceleration of external spraying after the ionization of a working medium so as to form a plasma jet source. The power device provides micro thrust for the on-orbit operation of the spacecraft, has the advantages of high efficiency, high specific impulse, high reliability and the like, and is widely applied to propulsion tasks of lifting, position keeping, attitude control and the like of a spacecraft orbit. The working medium is generally neutral gas, so that a plurality of gas distributors for distributing the neutral gas in the discharge channel are necessary. The thrust performance of the Hall thruster is directly influenced by the distribution uniformity of neutral gas in the mostly annular discharge channel. The problem of gas maldistribution among the outlet channels arises because the inlet channels from the gas source typically have only one or a few, and there is a natural mismatch with the outlet channels that ultimately form the annular array. In order to achieve uniform outflow of gas, there are solutions in the prior art that use two or more buffer chambers to homogenize the neutral gas before release. And the adjacent buffer cavities are communicated by using vent holes with equal spacing and equal diameter, but the scheme causes larger airflow close to the vent holes of the air inlet channel and smaller airflow farther away from the vent holes of the air inlet channel, and finally causes the nonuniformity of the air outlet of the whole device.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the prior air distributor has larger air flow close to the buffer cavity vent hole of the air inlet channel and smaller air flow farther away from the buffer cavity vent hole of the air inlet channel, and finally causes the nonuniformity of the air outlet of the whole device.
In order to solve the technical problem, the technical scheme adopted by the application is as follows:
a compensated gas distributor comprising:
a dispenser body;
an air inlet passage provided on the distributor body;
an air outlet channel disposed on the distributor body;
a buffer chamber disposed within the dispenser body; at least two buffer cavities are communicated in series between the air inlet channel and the air outlet channel;
the communication hole is communicated between two adjacent buffer cavities; a plurality of communication holes are distributed between two adjacent buffer cavities, and a near-end communication hole closest to the gas inlet channel and a far-end communication hole farthest from the gas inlet channel are divided on a gas flow path; the diameter of the distal communication hole is larger than the diameter of the proximal communication hole.
Alternatively, a plurality of communication holes are provided between the proximal communication hole and the distal communication hole along the gas flow path, the communication holes increasing in diameter in order from the proximal communication hole to the distal communication hole.
Alternatively, the difference in the diameters of the adjacent communication holes on the gas flow path tends to increase gradually.
Optionally, the distributor body is annular, the air outlet channels are arranged in an annular array around the axis of the distributor body, and the air outlet channels are radially opened towards the distributor body.
Optionally, the distributor main part has seted up the gas outlet groove along circumference, the gas outlet groove is close to the inboard wall of distributor main part is the gas tank inside wall, the gas outlet groove is close to the wall in the distributor main part outside is the gas tank lateral wall, has all seted up air outlet channel on gas tank inside wall and gas tank lateral wall.
Optionally, the air outlet channels on the inner side wall of the air groove and the air outlet channels on the outer side wall of the air groove are in staggered phase distribution.
Optionally, the dispenser body comprises:
the base is provided with an air inlet channel in a penetrating way;
the H-shaped component is a revolving body with an H-shaped section; the direction of the upper and lower openings of the H-shaped component is consistent with the axial direction of the rotating shaft; an opening at one side of the H-shaped component and the base enclose a first buffer cavity; a middle transverse structure of the H-shaped component is provided with a communicating hole; the communication holes are distributed around the circumference of the rotating shaft;
the air groove component is a revolving body with a concave section; the inner concave part of the air groove component forms the air outlet groove; the other side opening of the H-shaped component and the air groove component enclose a second buffer cavity.
Optionally, the area A of the proximal communicating aperture 0 Satisfies the formula:
c is a single-hole preset flow guide distributed according to the number of the communicating holes; alpha is the clauxin coefficient, also called transmission probability; r is a gas molar constant; t is the gas temperature; m is the gas molar mass.
Optionally, the number of the air inlet channels is one, and 18 communication holes are uniformly distributed around the circumference of the rotating shaft; gas is divided into two groups symmetrically by making a semicircular flow path in the first buffer cavity; along the gas flow path, the pore diameters of the communicating holes 8 of each set are distributed at a ratio of 1.0/1.1/1.2/1.4/1.6/1.9/2.2/2.6/3.0.
An electric thruster, comprising:
a thruster body;
the compensated gas distributor as described above is mounted on the thruster body.
By adopting the technical scheme, the invention has the following technical effects:
1. the compensation type gas distributor provided by the invention has the advantages that the diameter of the far-end communication hole far away from the gas inlet channel is relatively increased, so that when neutral gas flows out of the gas inlet channel and reaches the far-end communication hole through a long stroke, the gas output quantity of the neutral gas can be enhanced through the large-diameter communication hole, the flow loss caused by the fact that the gas flow is far away from a gas source is compensated, the relatively balanced gas output quantity is obtained at the near end or the far end of the gas source through the communication hole, the flowing uniformity of the neutral gas between the previous buffer cavity and the next buffer cavity is improved, the uniform gas output effect is finally obtained at the gas outlet channel, the more uniform discharge channel of the neutral gas behind the gas can be more fully ionized, and the thrust performance of the Hall thruster is improved.
2. According to the compensation type gas distributor provided by the invention, the diameters of the communication holes from the near-end communication hole to the far-end communication hole are sequentially increased, and the diameter difference of adjacent holes is gradually increased, so that neutral gas is more fully and uniformly distributed in the circumferential direction of the gas distributor.
3. The compensation type gas distributor provided by the invention adopts the gas groove structure matched with the radial arrangement of the gas outlet channel, so that neutral gas can be filled in the gas groove firstly after flowing out of the gas outlet channel, and the gas groove is annularly arranged along the circumferential direction of the device, so that the gas can be homogenized in the circumferential direction of the device before entering a discharge channel at the back, and the gas outlet uniformity is improved. And the air outlet channels are arranged on the two side walls of the air groove, so that the air outlet efficiency of the device is improved, and the homogenization effect of the air after flowing out is improved due to the increase of the air outlet channels.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic sectional view of the structure of embodiment 1 of the present invention;
FIG. 2 is a schematic perspective view of the structure of embodiment 1 of the present invention;
FIG. 3 is a schematic perspective view of the structure of an air tank member according to embodiment 1 of the present invention;
FIG. 4 is a schematic perspective view of the structure of an H-shaped member according to embodiment 1 of the present invention;
FIG. 5 is a schematic plan view of the structure of an H-shaped member of example 1 of the present invention in the case of model 0;
FIG. 6 is a schematic plan view of the structure of an H-shaped member of example 1 of the present invention in the form of a model 1;
FIG. 7 is a schematic plan view of the structure of an H-shaped member of example 1 of the present invention in the case of model 2;
FIG. 8 is a schematic plan view of the structure of an H-shaped member of example 1 of the present invention in the case of model 3;
FIG. 9 is a schematic top sectional view of the structure of an air tank member of example 1 of the present invention in the form of a mold 0;
FIG. 10 is a schematic top sectional view of a configuration in which a gas tank member according to embodiment 1 of the present invention is a model 4;
FIG. 11 is a graph showing the number density distribution of neutral gas molecules on the sectional lines of the discharge channels in the circumferential direction of the models 0 to 4;
FIG. 12 is a graph showing the distribution of the difference rate of the number density of molecules on the sectional lines of the discharge channels in the circumferential direction in accordance with models 0 to 4.
Description of reference numerals:
1. a base; 2. an H-shaped lower baffle; 3. an H-shaped middle layer baffle; 4. an H-shaped upper baffle plate; 5. a gas tank top surface; 6. an air intake passage; 7. a first buffer chamber; 8. a communicating hole; 9. a second buffer chamber; 10. an air gap; 11. an air outlet channel; 12. an air tank member; 13. an air inlet column; 14. fixing the stud; 15. an air inlet column mounting hole; 16. stud mounting holes; 17. the inner side wall of the air groove; 18. the outer side wall of the gas tank; 19. air tank bottom wall, 20, H type component.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiments provide a compensating gas distributor.
In one embodiment, as shown in fig. 1 to 4 and 6 to 8, it comprises: distributor main part, inlet channel 6, outlet channel 11, buffer chamber and intercommunicating pore 8. The inlet passage 6 and the outlet passage 11 are both arranged on the distributor body. A buffer chamber disposed within the dispenser body; at least two buffer cavities are communicated in series between the air inlet channel 6 and the air outlet channel 11. The communication hole 8 is communicated between two adjacent buffer cavities. A plurality of communication holes 8 are distributed between two adjacent buffer chambers, and a near-end communication hole closest to the gas inlet channel 6 and a far-end communication hole farthest from the gas inlet channel 6 are divided on a gas flow path. The diameter of the distal communication hole is larger than that of the proximal communication hole.
The diameter of the far-end communication hole far away from the gas inlet channel 6 is relatively increased by the gas distributor, so that when neutral gas flows out of the gas inlet channel 6 and reaches the far-end communication hole through a long stroke, the gas output quantity of the neutral gas can be enhanced through the large-diameter communication hole 8, the flow loss caused by the fact that the gas flow is far away from a gas source is compensated, the communication hole 8 obtains relatively balanced gas output quantity no matter at the near end or the far end of the gas source, the flowing uniformity of the neutral gas between a previous buffer cavity and a next buffer cavity is improved, the gas outlet channel 11 obtains a more uniform gas outlet effect, a discharge channel of the more uniform neutral gas behind the discharge channel can obtain more sufficient ionization, and the thrust performance of the Hall thruster can be improved.
Specifically, taking the model 1 shown in fig. 6 as an example, the diameter D1 of the proximal communicating hole closest to the air inlet channel 6 is selected to be 1.3mm, the diameter D9 of the distal communicating hole is selected to be 3.3mm, and compared with the model 0 shown in fig. 5, the diameters D1 of all the communicating holes 8 are 1.3mm, and finally as shown in fig. 11, the number density distribution line of the neutral gas molecules of the model 0 (i.e., the curve where the original model in the figure is located) has a large depression and poor distribution uniformity at the position away from the air source end (i.e., the radian is 1), and the number density of the neutral gas molecules of the model 1 is obviously enhanced at the position away from the air source end, and the curve forms a compensatory peak, so that the uniformity of the gas amount of the gas distributor is improved. Further, as shown in fig. 12, the maximum difference rate and the average difference rate of the number-of-molecules density of model 1 are both lower than those of model 0, so that the gas uniformity is improved.
It should be noted that although the embodiment of fig. 1 to 4 and fig. 6 to 8 is in the form of a single gas inlet channel 6, the compensating gas distributor of the present embodiment is not limited to a single gas inlet channel 6, and in the case of a plurality of gas inlet channels 6, the corresponding proximal communication hole and distal communication hole may be formed, except that the distal communication hole is the farthest hole on the gas path relative to the adjacent two gas inlet channels 6. And the overall air outlet uniformity of the device can also be improved after the diameter of the far-end communication hole is increased.
The size of the proximal communicating hole is preferably selected so that the area A of the proximal communicating hole is larger than the area A of the proximal communicating hole 0 Satisfies the formula:
c is a single-hole preset conductance which is equally divided according to the number of the communication holes 8, and the conductance represents the gas passing capacity of the vacuum pipeline; alpha is the clausin coefficient, also known as transmission probability; r is a gas molar constant; t is the gas temperature; m is the gas molar mass.
The near-end communicating hole calculated by the formula can be used as a reference for designing the communicating hole 8, and the diameter of the far-end communicating hole is increased only by the reference, so that the overall air outlet uniformity of the whole device can be effectively improved.
Based on the above embodiment, in an alternative embodiment, as shown in fig. 7 and 8, a plurality of communication holes 8 are provided between the proximal communication hole and the distal communication hole along the gas flow path, and the diameters of the communication holes 8 increase in order from the proximal communication hole to the distal communication hole.
Specifically, taking the model 2 shown in fig. 7 and the model 3 shown in fig. 8 as examples, both of which have the communication holes 8 whose diameters are sequentially increased, as compared with the model 1 shown in fig. 6 in which only the diameter of the distal communication hole is increased, the number of molecules of the neutral gas and the maximum difference rate of the number of molecules of the neutral gas in the models 2 and 3 are improved as shown in fig. 11 and 12. It should be noted that, since the diameter of the communicating hole 8 between the proximal communicating hole and the distal communicating hole of the model 2 and the model 3 is enlarged to enhance the gas uniformity in the middle section, the compensatory peak at the distal end of the gas source as in the model 1 does not appear in fig. 11, but the gas uniformity of the model 2 and the model 3 as a whole is improved.
Based on the above embodiment, in an alternative embodiment, as shown in fig. 8, the difference in the diameters of the adjacent communication holes 8 in the gas flow path tends to increase gradually. Specifically, taking the model 3 shown in fig. 8 as an example, the single air intake passage 6 is provided at 9 o' clock of the ring in the figure, and 18 communication holes 8 are uniformly distributed around the center of the ring, i.e., the circumference of the rotation axis of the H-shaped member 20 shown in the figure. Because the gas is divided into two paths along the annular first buffer cavity 7, each path is a semicircular flow path, the communication holes 8 are divided into two symmetrical groups; in each group, the near-end intercommunicating pores and the far-end intercommunicating pores have 9 pores with the diameters of D1-D9 respectively, and the pore diameters of the pores are distributed according to the proportion of 1.0/1.1/1.2/1.4/1.6/1.9/2.2/2.6/3.0. The group of diameters is characterized by a gradually increasing trend of the difference between the diameters of the adjacent holes, for example, the difference between the adjacent diameters of the front 3 holes is 0.1, the difference between the adjacent diameters is increased to 0.2, and then the difference of 0.3 is finally reached to a difference of 0.4. It should be noted that, the diameter difference gradually increases only in a general increasing direction, and it is not specifically limited that the diameter difference of each group adjacent to the former group is increased, for example, the diameter difference of the first two groups (D1 and D2, D2 and D3) remains 0.1 and does not increase, which is actually a result of rounding the design, but the difference thereafter gradually increases.
In contrast to the model 2 shown in fig. 7, the diameters of the holes D1 to D9 are arranged in an arithmetic progression, that is, the diameter difference of adjacent holes is a fixed value, specifically, the diameter is from 1.3mm to 3.3mm, and the adjacent difference is fixed to 0.25mm. Compared with the scheme that the difference value is gradually increased, the arrangement that the diameter difference value is fixed has relatively poor homogenization effect of the airflow, and as shown in fig. 11, the molecular number density of the model 2 is still reduced at the far end of the air source, and the curve shows very obvious concave-down. While the curve of the model 3 is relatively flat, the neutral gas is more fully homogenized in the circumferential direction of the gas distributor.
Based on the above embodiments, in an alternative embodiment, as shown in fig. 1 to 3, the distributor body is annular, the gas outlet channels 11 are arranged in an annular array around the axis of the distributor body, and the gas outlet channels 11 open in the radial direction of the distributor body.
Because the ions in the discharge channel have a backflow phenomenon, sputtering coating is generated on a strike face along the direction of an electric field, generally the axial direction of the gas distributor, and if the gas outlet channel 11 is arranged along the axial direction of the distributor body, the gas outlet channel is easily sputtered after long-term operation to change the aperture, so that the gas distribution is not uniform. This problem is avoided if the outlet channels 11 are radially open.
Based on the above embodiment, in an optional embodiment, as shown in fig. 1 to 3, the distributor body is provided with an air outlet groove along the circumferential direction, the bottom surface of the air groove is an air groove bottom wall 19, the wall surface of the air outlet groove close to the inner side of the distributor body is an air groove inner side wall 17, and the wall surface of the air outlet groove close to the outer side of the distributor body is an air groove outer side wall 18. The air outlet channel 11 is arranged on the air groove inner side wall 17 and the air groove outer side wall 18.
After the gas groove structure is adopted to be matched with the radial opening of the gas outlet channel 11, neutral gas can be filled in the gas groove firstly after flowing out from the gas gap 10 to the gas outlet channel 11, and the gas groove is annularly arranged along the circumferential direction of the device, so that the gas can be homogenized in the circumferential direction of the device before entering a discharge channel at the back, and the gas outlet uniformity is improved. And the two side walls of the air groove are provided with the air outlet channels 11, so that the air outlet efficiency of the device is improved, and the homogenization effect after the air flows out is improved due to the increase of the air outlet channels 11.
Based on the above embodiment, in an alternative embodiment, as shown in fig. 10, the gas outlet channels 11 on the inner sidewall 17 of the gas tank and the gas outlet channels 11 on the outer sidewall 18 of the gas tank are arranged in a staggered manner. The staggered phase refers to a phase angle of inner outlet channel 11 on the illustrated circular ring, which is different from the phase angle of outer outlet channel 11, and they are staggered with each other. Compared with the embodiment shown in fig. 9, the phase angles of the air outlet channels 11 on the inner side and the outer side are the same. In the case where the model 4 is formed by arranging the communication holes 8 shown in fig. 8 and combining the gas outlet channels 11 shown in fig. 10, and the gas outlet channels 11 shown in fig. 9 are used in the models 0 to 3, the final gas uniformizing effect is as shown in fig. 11 and 12, and it can be seen that the model 3 using the phase-staggered gas outlet channels 11 is more excellent than the previous model 4 in terms of circumferential molecular density, and the maximum difference rate and the average difference rate of the molecular number density are greatly reduced. This is mainly due to the fact that the air outlet channels 11 with staggered phases shorten the air groove filling distance between the adjacent air outlet channels 11, so that the air flow can be filled in the air grooves more quickly and fully, and continues to flow to the following discharge channels after the air grooves are full, and the air outlet uniformity of the whole device is improved.
Based on the above embodiments, in an alternative embodiment, as shown in fig. 1 to 4, the dispenser body includes: a base 1, an H-shaped member 20 and a gas tank member 12. The base 1 is provided with an air inlet channel 6 in a penetrating way. An inlet column mounting hole 15 may also be provided at the end of the inlet passage 6 for connection to the inlet column 13. And stud mounting holes 16 can be arranged on the base 1 for connecting the fixing studs 14. The H-shaped component 20 is a revolving body with an H-shaped section, and specifically comprises an H-shaped lower baffle 2, an H-shaped middle baffle 3 and an H-shaped upper baffle 4. The upper and lower openings of the H-shaped member 20, i.e., the upper opening formed by the H-shaped upper baffle plates 4 on both sides and the lower opening formed by the H-shaped lower baffle plates 2 on both sides, are oriented in the same direction as the axial direction of the rotating shaft. The lower opening of the H-shaped member 20 and the base 1 enclose a first buffer cavity 7. The middle horizontal structure of the H-shaped component 20, namely the H-shaped middle baffle 3 is provided with a communicating hole 8. The communication holes 8 are distributed circumferentially around the axis of rotation. The air groove member 12 is a rotary body having a concave cross section. The inner concave portion of the gas groove member 12 forms the gas outlet groove; the concave notch of the air channel member 12 is the air channel top surface 5. The upper opening of the H-shape encloses a second buffer chamber 9 with the air channel member 12.
This structure is advantageous in that the dispenser main body having the two buffer chambers, the communication hole 8 between the two chambers, and the air groove is divided into three parts in a simple shape, and the parts are easily manufactured, so that the overall manufacturing cost of the device can be reduced.
Example 2
The present embodiment provides an electric thruster.
In one embodiment, it includes a thruster body and a compensating gas distributor. The structure of the compensating gas distributor is as described in embodiment 1, and is mounted on the thruster body.
The thruster uses the compensation type gas distributor in the embodiment 1, so that the neutral gas can be uniformly distributed in the discharge channel, and the neutral gas can be fully ionized, the thrust of the thruster is improved, and the thrust balance is enhanced.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (10)
1. A compensated gas distributor, comprising:
a dispenser body;
an intake passage (6) provided on the distributor body;
an outlet passage (11) provided on the dispenser body;
a buffer chamber disposed within the dispenser body; at least two buffer cavities are communicated in series between the air inlet channel (6) and the air outlet channel (11);
the communication hole (8) is communicated between two adjacent buffer cavities; a plurality of communication holes (8) are distributed between two adjacent buffer cavities, and a near-end communication hole closest to the gas inlet channel (6) and a far-end communication hole farthest from the gas inlet channel (6) are divided on a gas flow path; the diameter of the distal communication hole is larger than that of the proximal communication hole.
2. Compensated gas distributor according to claim 1, wherein a plurality of communication holes (8) are provided along the gas flow path between the proximal communication hole and the distal communication hole, the communication holes (8) increasing in diameter from the proximal communication hole to the distal communication hole.
3. A compensated gas distributor according to claim 2 wherein the difference in diameter between adjacent communication holes (8) in the gas flow path has a gradually increasing trend.
4. The compensated gas distributor according to any one of claims 1 to 3, wherein the distributor body is annular, the gas outlet channels (11) being arranged in an annular array around the axis of the distributor body, the gas outlet channels (11) opening out in a radial direction of the distributor body.
5. The compensated gas distributor according to claim 4, wherein the distributor body is provided with gas outlet grooves along the circumferential direction, the wall of the gas outlet groove close to the inside of the distributor body is a gas groove inner side wall (17), the wall of the gas outlet groove close to the outside of the distributor body is a gas groove outer side wall (18), and gas outlet channels (11) are provided on both the gas groove inner side wall (17) and the gas groove outer side wall (18).
6. The compensating gas distributor according to claim 5, wherein the gas outlet channels (11) on the inner side wall (17) of the gas cell and the gas outlet channels (11) on the outer side wall (18) of the gas cell are arranged in a staggered phase.
7. The compensated gas distributor of claim 5, wherein the distributor body comprises:
the base (1) is provided with an air inlet channel (6) in a penetrating way;
an H-shaped member (20) which is a rotating body having an H-shaped cross section; the direction of the upper and lower openings of the H-shaped member (20) is consistent with the rotation axial direction; an opening at one side of the H shape and the base (1) enclose a first buffer cavity (7); a communication hole (8) is formed in the middle transverse structure of the H-shaped component (20); the communication holes (8) are distributed around the circumference of the rotating shaft;
an air groove member (12) which is a revolving body having a concave section; the inner concave part of the air groove component (12) forms the air outlet groove; the other side opening of the H-shaped component (20) and the air groove component (12) enclose a second buffer cavity (9).
8. The compensated gas distributor of claim 7, wherein the proximal communication aperture has an area A 0 Satisfies the formula:
wherein C is a single-hole preset flow guide distributed according to the number of the communication holes (8); alpha is the clauxin coefficient, also called transmission probability; r is a gas molar constant; t is the gas temperature; m is the gas molar mass.
9. The compensated gas distributor according to claim 8, wherein the number of the gas inlet channels (6) is one, and the number of the communication holes (8) is 18; gas is divided into two groups by making a semicircular flow path in the first buffer cavity (7); along the gas flow path, the pore diameters of the communicating pores (8) of each group are distributed in a ratio of 1.0/1.1/1.2/1.4/1.6/1.9/2.2/2.6/3.0.
10. An electric thruster, comprising:
a thruster body;
the compensated gas distributor of any one of claims 1 to 9 mounted on the thruster body.
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| CN202310000699.0A CN115711209B (en) | 2023-01-03 | 2023-01-03 | Compensation type gas distributor and electric thruster |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117825033A (en) * | 2024-03-04 | 2024-04-05 | 国科大杭州高等研究院 | Detection method of electric thruster gas distributor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2084085C1 (en) * | 1995-07-14 | 1997-07-10 | Центральный научно-исследовательский институт машиностроения | Closed electron drift accelerator |
| WO2015132534A1 (en) * | 2014-03-07 | 2015-09-11 | Snecma | Hall-effect plasma thruster |
| CN106640569A (en) * | 2016-11-21 | 2017-05-10 | 北京控制工程研究所 | Double-layer pore plate type gas distributor easy to assemble |
| CN109555658A (en) * | 2019-01-31 | 2019-04-02 | 哈尔滨工业大学 | A kind of hall thruster gas distributor structure with porous material partition |
| CN110486242A (en) * | 2019-07-19 | 2019-11-22 | 北京航空航天大学 | A kind of hall thruster gas distributor of bilayer air cavity |
| CN113357113A (en) * | 2021-07-02 | 2021-09-07 | 兰州空间技术物理研究所 | Air supply and insulation integrated structure of space electric thruster |
-
2023
- 2023-01-03 CN CN202310000699.0A patent/CN115711209B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2084085C1 (en) * | 1995-07-14 | 1997-07-10 | Центральный научно-исследовательский институт машиностроения | Closed electron drift accelerator |
| WO2015132534A1 (en) * | 2014-03-07 | 2015-09-11 | Snecma | Hall-effect plasma thruster |
| CN106640569A (en) * | 2016-11-21 | 2017-05-10 | 北京控制工程研究所 | Double-layer pore plate type gas distributor easy to assemble |
| CN109555658A (en) * | 2019-01-31 | 2019-04-02 | 哈尔滨工业大学 | A kind of hall thruster gas distributor structure with porous material partition |
| CN110486242A (en) * | 2019-07-19 | 2019-11-22 | 北京航空航天大学 | A kind of hall thruster gas distributor of bilayer air cavity |
| CN113357113A (en) * | 2021-07-02 | 2021-09-07 | 兰州空间技术物理研究所 | Air supply and insulation integrated structure of space electric thruster |
Non-Patent Citations (1)
| Title |
|---|
| 范金蕤 等: "供气周向不均匀对霍尔推力器放电特性及性能的影响", 中国空间科学技术 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117825033A (en) * | 2024-03-04 | 2024-04-05 | 国科大杭州高等研究院 | Detection method of electric thruster gas distributor |
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