CN114483370A - Nozzle sealing structure and gas generating equipment - Google Patents
Nozzle sealing structure and gas generating equipment Download PDFInfo
- Publication number
- CN114483370A CN114483370A CN202210144246.0A CN202210144246A CN114483370A CN 114483370 A CN114483370 A CN 114483370A CN 202210144246 A CN202210144246 A CN 202210144246A CN 114483370 A CN114483370 A CN 114483370A
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- China
- Prior art keywords
- sleeve
- spray pipe
- sealing structure
- nozzle
- connecting frame
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/78—Other construction of jet pipes
- F02K1/80—Couplings or connections
- F02K1/805—Sealing devices therefor, e.g. for movable parts of jet pipes or nozzle flaps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/78—Other construction of jet pipes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
Abstract
The invention relates to the field of gas auxiliary devices, in particular to a nozzle sealing structure and gas generating equipment. The nozzle sealing structure comprises a nozzle, a sleeve, a throat plug and an elastic part; the sleeve is connected to one end of the spray pipe; the throat plug is movably connected with the sleeve and at least has a first state and a second state; when the choke plug is in the first state, the sleeve moves towards the direction close to the sleeve, and the sleeve is communicated with the spray pipe; when the choke plug is in a second state, the sleeve moves towards one end, which is close to the spray pipe and is far away from the sleeve, and is abutted against the inner wall of the spray pipe, so that the sleeve is blocked from the spray pipe; one end of the elastic piece is connected with the choke plug, the other end of the elastic piece is connected with the sleeve or the spray pipe, and the elastic piece is used for enabling the choke plug to have the trend of moving towards the end close to the spray pipe and deviating from the sleeve. The nozzle sealing structure can prevent high-temperature gas of the working generator from reversely flowing into the non-working generator to cause abnormal ignition and combustion of the non-working generator.
Description
Technical Field
The invention relates to the field of gas auxiliary devices, in particular to a nozzle sealing structure and gas generating equipment.
Background
The fuel gas generator is a special fuel gas auxiliary power device structure, forms high-pressure high-temperature gas through stable combustion of a explosive column in a shell and sprays the high-pressure high-temperature gas from a spray pipe to realize set functions, has the main function of providing a stable heat source or applying work by fuel gas, and has the characteristics of one-time use and incapability of pausing once being started.
Due to space limitation or design difficulty reduction, when a single generator with greatly increased length cannot be used for realizing the purpose of long-time work, only the single generator can be split into a plurality of generators to work in series so as to realize the long-time work; when a plurality of generators work in series, different gas generators are sequentially ignited in different time periods according to instructions; the gas of all the gas generators is collected into a uniform outlet through a sleeve behind each spray pipe. However, in such an operation mode, the high-temperature (high-pressure) gas of the generator already in operation flows back into the generator not in operation, and abnormal ignition and combustion of the generator not in operation are likely to occur.
Disclosure of Invention
The object of the present invention includes, for example, providing a nozzle sealing structure and a gas generating apparatus capable of preventing a high-temperature gas of an operated generator from flowing backward into an inoperative generator, causing abnormal ignition combustion of the inoperative generator.
Embodiments of the invention may be implemented as follows:
in a first aspect, the present invention provides a nozzle seal structure comprising a nozzle, a sleeve, a choke plug, and an elastic member;
the sleeve is connected to one end of the spray pipe; the throat plug is movably connected with the sleeve and at least has a first state and a second state; when the choke plug is in the first state, the sleeve moves towards the direction close to the sleeve, and the sleeve is communicated with the spray pipe; when the choke plug is in a second state, the sleeve moves towards one end, which is close to the spray pipe and is far away from the sleeve, and is abutted against the inner wall of the spray pipe, so that the sleeve is blocked from the spray pipe;
one end of the elastic piece is connected with the choke plug, the other end of the elastic piece is connected with the sleeve or the spray pipe, and the elastic piece is used for enabling the choke plug to have the trend of moving towards the end close to the spray pipe and deviating from the sleeve.
In an alternative embodiment, the laryngeal plug includes a first section and a second section, the first section being connected to the second section; the first sub-part is used for being abutted against the inner wall of the spray pipe, and the second sub-part is movably connected with the sleeve;
a conical inner wall is arranged in the spray pipe, and the inner diameter of the conical inner wall is gradually reduced from the spray pipe to the sleeve;
the first section has a shape conforming to the tapered inner wall.
In an alternative embodiment, the axis of the nozzle coincides with the axis of the sleeve, and the second section is slidably connected to the sleeve along the axis of the sleeve.
In an optional embodiment, the outer circumferential surface of the first section is provided with a sealing groove;
the spray pipe sealing structure further comprises a sealing ring, the sealing ring is arranged in the sealing groove, and the sealing ring is used for being abutted against the conical inner wall.
In an alternative embodiment, the spout sealing structure further comprises a connecting shelf;
the connecting frame is connected to the end part of the spray pipe, and is provided with a through hole which is matched with the second part in a sliding way;
the sleeve is sleeved outside the spray pipe and the connecting frame, connected with the spray pipe and abutted against the connecting frame, and used for limiting the movement of the connecting frame relative to the spray pipe.
In an alternative embodiment, the resilient member is sleeved on the second section, and one end of the resilient member near the sleeve abuts against the connecting frame.
In an optional embodiment, the end part of the spray pipe is provided with an installation groove, and the connecting frame is matched with the installation groove;
the outer peripheral surface of the spray pipe is provided with an external thread connected with the sleeve through a thread.
In an alternative embodiment, the second section projects from the connecting frame when the laryngeal plug is in the second state;
along the extension direction of the spray pipe, the second part protrudes 1mm-5mm from the connecting frame.
In an alternative embodiment, the throat plug is made of a common steel or superalloy material.
In a second aspect, the present invention provides a gas generating apparatus, which comprises a gas generator and the above nozzle sealing structure;
the end of the nozzle facing away from the sleeve is connected to the gas generator.
The embodiment of the invention has the beneficial effects that:
the nozzle sealing structure comprises a nozzle, a sleeve, a throat plug and an elastic part; the sleeve is connected to one end of the spray pipe; the throat plug is movably connected with the sleeve and at least has a first state and a second state; when the choke plug is in the first state, the sleeve moves towards the direction close to the sleeve, and the sleeve is communicated with the spray pipe; when the choke plug is in a second state, the sleeve moves towards one end, which is close to the spray pipe and is far away from the sleeve, and is abutted against the inner wall of the spray pipe, so that the sleeve is blocked from the spray pipe; one end of the elastic piece is connected with the choke plug, the other end of the elastic piece is connected with the sleeve or the spray pipe, and the elastic piece is used for enabling the choke plug to have the trend of moving towards the end close to the spray pipe and deviating from the sleeve. The nozzle sealing structure can prevent high-temperature gas of the working generator from reversely flowing into the non-working generator to cause abnormal ignition and combustion of the non-working generator.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a nozzle seal arrangement with a throat insert in a first state according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of a nozzle seal structure with a choke plug in a second state according to an embodiment of the present invention.
Icon: 200-a nozzle seal structure; 210-a nozzle; 220-a cannula; 230-laryngeal plug; 240-a resilient member; 231-first subsection; 232-second subsection; 211-a conical inner wall; 233-sealing groove; 250-a sealing ring; 260-a connecting frame; 261-through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1 and 2, fig. 1 shows a structure of a nozzle sealing structure when a throat plug is in a first state in an embodiment of the present invention, and fig. 2 shows a structure of a nozzle sealing structure when a throat plug is in a second state in an embodiment of the present invention;
the present embodiment provides a spout sealing structure 200, the spout sealing structure 200 includes a spout 210, a sleeve 220, a throat plug 230, and an elastic member 240;
the sleeve 220 is connected to one end of the nozzle 210; the throat plug 230 is movably connected with the cannula 220 and at least has a first state and a second state; when the choke plug 230 is in the first state (see fig. 1), the sleeve 220 moves towards the direction close to the sleeve 220, and the sleeve 220 is conducted with the nozzle 210; when the choke 230 is in the second state (see fig. 2), the sleeve 220 moves towards the end of the nozzle 210 away from the sleeve 220 and abuts against the inner wall of the nozzle 210, so that the sleeve 220 is blocked from the nozzle 210;
one end of the elastic member 240 is connected to the choke plug 230, the other end of the elastic member 240 is connected to the sleeve 220 or the nozzle 210, and the elastic member 240 is used for enabling the choke plug 230 to have a tendency to move towards the end close to the nozzle 210 away from the sleeve 220.
The working principle of the nozzle sealing structure 200 is as follows:
referring to fig. 1 and 2, the nozzle sealing structure 200 includes a nozzle 210, a sleeve 220, a throat plug 230, and an elastic member 240; the sleeve 220 is connected to one end of the nozzle 210; the throat plug 230 is movably connected with the casing 220, and has at least a first state and a second state; when the choke plug 230 is in the first state, the sleeve 220 moves towards the direction close to the sleeve 220, and the sleeve 220 is communicated with the nozzle 210; when the choke 230 is in the second state, the sleeve 220 moves towards the end of the nozzle 210 away from the sleeve 220 and abuts against the inner wall of the nozzle 210, so that the sleeve 220 is blocked from the nozzle 210;
one end of the elastic member 240 is connected with the choke plug 230, the other end of the elastic member 240 is connected with the sleeve 220 or the nozzle 210, and the elastic member 240 is used for enabling the choke plug 230 to have a tendency to move towards the end close to the nozzle 210 and away from the sleeve 220. Accordingly, the throat plug 230 tends to be shifted to the second state by the elastic member 240, so that the gas in the sleeve 220 can be prevented from entering the nozzle 210, and the high-temperature gas of the generator that has been operated can be prevented from flowing back to the generator that has not been operated, thereby preventing abnormal ignition and combustion of the generator that has not been operated.
It should be noted that the nozzle 210 and the sleeve 220 are used to connect different generators to connect a plurality of generators in series, and the direction from the generator connected to the nozzle 210 to the generator connected to the sleeve 220 is the forward direction (as indicated by arrow a in fig. 1) and the direction from the generator connected to the sleeve 220 to the generator connected to the nozzle 210 is the reverse direction (as indicated by arrow B in fig. 1) in the series direction, and this arrangement is intended to prevent backflow of high-temperature and high-pressure gas in the generator connected to the sleeve 220.
Further, referring to fig. 1 and fig. 2, in the present embodiment, when the throat plug 230 is disposed, the throat plug 230 includes a first part 231 and a second part 232, and the first part 231 is connected to the second part 232; the first section 231 is adapted to abut the inner wall of the spout 210 and the second section 232 is movably connected to the sleeve 220.
When the first part 231 is arranged, in order to increase the contact area between the choke plug 230 and the nozzle 210 and improve the sealing performance when the choke plug 230 contacts the nozzle 210, a conical inner wall 211 is arranged inside the nozzle 210, and the inner diameter of the conical inner wall 211 is gradually reduced from the nozzle 210 to the sleeve 220; the first subsection 231 has a shape adapted to the tapered inner wall 211; the axis of the nozzle 210 coincides with the axis of the sleeve 220, and the second section 232 is slidably connected with the sleeve 220 along the axis of the sleeve 220; it should be noted that when the tapered inner wall 211 is provided, the inner wall of the end of the nozzle 210 facing away from the sleeve 220 is tapered, and the angle of the tapered surface of the tapered inner wall 211 may be the same as or similar to the angle of the tapered surface of the inner wall of the end of the nozzle 210 facing away from the sleeve 220, and the angle of the tapered surface is controlled to be 20 ° to 180 °.
While adopting the above structure, the outer circumferential surface of the first section 231 may be provided with a sealing groove 233; the nozzle seal structure 200 further includes a seal ring 250, the seal ring 250 being disposed in the seal groove 233, the seal ring 250 being configured to abut against the tapered inner wall 211.
When the second sub-portion 232 is provided, in order to enable the choke plug 230 to slide along the axis of the nozzle 210, the second sub-portion 232 may be of a pipe structure, and in order to simplify the structure of the nozzle sealing structure 200, so as to facilitate the installation and removal of the choke plug 230, the nozzle sealing structure 200 further includes a connecting frame 260; the connecting frame 260 is connected to the end of the nozzle 210, and the connecting frame 260 is provided with a through hole 261 slidably matched with the second section 232; the sleeve 220 is sleeved outside the nozzle 210 and the connection frame 260, the sleeve 220 is connected with the nozzle 210 and abutted against the connection frame 260, and the sleeve 220 is used for limiting the movement of the connection frame 260 relative to the nozzle 210.
With this arrangement, after attachment of attachment frame 260, throat plug 230 can be slidably disposed with respect to nozzle 210 and sleeve 220 along the axis of nozzle 210 by slidably coupling second portion 232 of throat plug 230 to attachment frame 260.
It should be noted that, when the second part 232 is provided, the second part 232 may also be a cylindrical or a columnar polygonal structure with an N-sided cross section, and if the second part 232 is a polygon, N is greater than or equal to 3 and less than or equal to 6, and N is a positive integer. The equivalent diameter is controlled within the range of 1-10mm, or the section size is increased according to specific situations.
When the connection frame 260 is installed, in order to facilitate the fixation of the connection frame 260, an installation groove is formed at the end of the nozzle 210, and the connection frame 260 is matched with the installation groove; the outer circumferential surface of the nozzle 210 is provided with external threads to be screw-coupled with the sleeve 220. Therefore, after the connection frame 260 is matched with the installation groove, the sleeve 220 is sleeved on the end part of the spray pipe 210, is in threaded connection with the spray pipe 210 and is abutted against the connection frame 260, and accordingly the connection frame 260 can be fixed.
When the sleeve 220 is provided, a stopper for abutting against the connecting frame 260 may be provided on the inner circumferential surface of the sleeve 220 so that the sleeve 220 can function as an abutting against the connecting frame 260.
As can be seen from the above, referring to fig. 1 and fig. 2, in the present embodiment, the connecting frame 260 is provided, and the through hole 261 is opened in the connecting frame 260, so that the throat plug 230 is slidable relative to the nozzle 210 and the sleeve 220 along the axis of the nozzle 210, and therefore, based on the arrangement, when the elastic member 240 is provided, the elastic member 240 may be a spring, so that the elastic member 240 can be sleeved on the second partition 232, and one end of the elastic member 240 close to the sleeve 220 abuts against the connecting frame 260.
Further, referring to fig. 1 and 2, when the throat plug 230 moves relative to the nozzle 210, it has a first state and a second state, and the throat plug 230 is slidably engaged with the through hole 261 of the connecting frame 260, so that when the throat plug 230 is in the first state, it is abutted against the inner wall of the sprinkler, and at this time, the second section 232 is at the limit position extending into the sleeve 220; when the choke plug 230 is in the second state, the choke plug 230 overcomes the elastic force of the elastic member 240 and moves towards the direction close to the sleeve 220 under the action of the gas entering from the end of the nozzle 210 away from the sleeve 220, and during the movement, the part of the second branch 232 protrudes out of the connecting frame 260, so that in order to prevent the sleeve 220 in the second state from affecting other structures, the second branch 232 protrudes out of the connecting frame 260 when the choke plug 230 is in the second state; along the extension of nozzle 210, second section 232 protrudes from attachment shelf 260-5 mm.
Further, referring to fig. 1 and 2, the throat plug 230 is made of a common steel material or a high temperature alloy material. According to important factors such as the temperature of the fuel gas, the length of the working time and the like, different selection requirements are made on the material of the choke plug 230, and when the temperature of the fuel gas at the outlet of the spray pipe 210 is 1300-2000 ℃ and the working time is more than 40s, materials such as molybdenum alloy, high-temperature alloy and the like can be selected; if the temperature of the fuel gas is 1300-2000 ℃ and the working time is less than 40s, or the temperature of the fuel gas is less than 1300 ℃ and the fuel gas works for a long time, the throat plug 230 can be made of stainless steel or high-strength steel and other materials;
the elastic member 240 may be a conical compression spring, and the diameter of the elastic member may be different metal materials according to specific requirements of working time, so as to prevent the conical compression spring from being bent or broken, and the throat plug 230 is blown out to hit other external components or block the pipeline.
Based on the above, please refer to fig. 1 and fig. 2, the present invention provides a gas generating apparatus, which includes a gas generator and the above nozzle sealing structure 200; the end of the nozzle 210 facing away from the sleeve 220 is connected to the gas generator, while the sleeve 220 is used to connect to other gas generators, and the nozzle sealing structure 200 is used to prevent backflow of high temperature and high pressure gas in the gas generator connected to the sleeve 220 into the gas generator connected to the nozzle 210.
Therefore, when the gas generating equipment comprises a plurality of gas generators, the plurality of gas generators are connected in series and bound together and need to work in a time-sharing manner;
when the gas generators connected with the nozzle 210 at the end part work along the serial direction of the plurality of gas generators, the internal pressure rises, and when the gas flows in the positive direction, the gas passes through the minimum section of the nozzle 210 and then is collected in the first branch part 231 of the throat plug 230, and after the pressure rises, the gas overcomes the elastic force of the elastic piece 240 to push the throat plug 230 to slide towards the direction close to the sleeve 220, so that the sleeve 220 is communicated with the spray irrigation;
if the pressure of the fuel gas is increased in a reverse direction, when the fuel gas flows in the reverse direction, the throat plug 230 is pushed to slide towards one end, away from the sleeve 220, of the nozzle 210, so that the first branch 231 and the sealing ring 250 on the first branch 231 are tightly pressed and attached to the conical inner wall 211 of the nozzle 210, the fuel gas cannot flow back to a non-working fuel gas generator through the sleeve 220 and the nozzle 210, and high-pressure sealing is achieved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A kind of spray tube hermetically-sealed construction, its characterized in that:
the nozzle sealing structure comprises a nozzle, a sleeve, a throat plug and an elastic part;
the sleeve is connected to one end of the spray pipe; the throat plug is movably connected with the sleeve and at least has a first state and a second state; when the throat plug is in the first state, the sleeve moves towards the direction close to the sleeve, and the sleeve is communicated with the spray pipe; when the throat plug is in the second state, the sleeve moves towards one end, away from the sleeve, of the spray pipe and abuts against the inner wall of the spray pipe, so that the sleeve is blocked with the spray pipe;
one end of the elastic piece is connected with the throat plug, the other end of the elastic piece is connected with the sleeve or the jet pipe, and the elastic piece is used for enabling the throat plug to have the tendency of moving towards one end, close to the jet pipe, far away from the sleeve.
2. The spout sealing structure of claim 1, wherein:
the throat plug comprises a first subsection and a second subsection, and the first subsection is connected with the second subsection; the first subsection is used for being abutted against the inner wall of the spray pipe, and the second subsection is movably connected with the sleeve;
a conical inner wall is arranged in the spray pipe, and the inner diameter of the conical inner wall is gradually reduced from the spray pipe to the sleeve;
the first section has a shape conforming to the tapered inner wall.
3. The spout sealing structure of claim 2, wherein:
the axis of the nozzle coincides with the axis of the sleeve, and the second section is slidably connected with the sleeve along the axis of the sleeve.
4. The spout sealing structure of claim 2, wherein:
the peripheral surface of the first subsection is provided with a sealing groove;
the spray pipe sealing structure further comprises a sealing ring, the sealing ring is arranged in the sealing groove, and the sealing ring is used for being abutted against the conical inner wall.
5. The spout sealing structure of claim 2, wherein:
the spray pipe sealing structure further comprises a connecting frame;
the connecting frame is connected to the end part of the spray pipe, and is provided with a through hole which is matched with the second part in a sliding manner;
the sleeve is sleeved outside the spray pipe and the connecting frame, connected with the spray pipe and abutted against the connecting frame, and used for limiting the movement of the connecting frame relative to the spray pipe.
6. The spout sealing structure of claim 5, wherein:
the elastic piece is sleeved on the second sub-part, and one end, close to the sleeve, of the elastic piece is abutted to the connecting frame.
7. The spout sealing structure of claim 5, wherein:
the end part of the spray pipe is provided with an installation groove, and the connecting frame is matched with the installation groove;
and the outer peripheral surface of the spray pipe is provided with an external thread in threaded connection with the sleeve.
8. The spout sealing structure of claim 5, wherein:
when the throat plug is in the second state, the second part protrudes out of the connecting frame;
along the extension direction of the spray pipe, the second part protrudes 1mm-5mm from the connecting frame.
9. A spout sealing structure of any one of claims 1-8, wherein:
the throat plug is made of common steel or high-temperature alloy materials.
10. A gas generating apparatus, characterized in that:
the gas generating apparatus comprising a gas generator and a lance sealing structure according to any one of claims 1 to 9;
the end of the nozzle pipe, which is far away from the sleeve pipe, is connected with the fuel gas generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210144246.0A CN114483370A (en) | 2022-02-17 | 2022-02-17 | Nozzle sealing structure and gas generating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210144246.0A CN114483370A (en) | 2022-02-17 | 2022-02-17 | Nozzle sealing structure and gas generating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114483370A true CN114483370A (en) | 2022-05-13 |
Family
ID=81481932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210144246.0A Pending CN114483370A (en) | 2022-02-17 | 2022-02-17 | Nozzle sealing structure and gas generating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114483370A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3078668A (en) * | 1959-02-02 | 1963-02-26 | Garrett Corp | Gas generator regulating system |
| EP2136064A2 (en) * | 2008-06-19 | 2009-12-23 | Bayern-Chemie Gesellschaft für flugchemische Antriebe mbH | Gas generator |
| CN104791133A (en) * | 2015-03-17 | 2015-07-22 | 南京理工大学 | Automatic anti-backfire device for pasty propellant rocket motor |
| CN105257869A (en) * | 2015-09-30 | 2016-01-20 | 南京理工大学 | Paste fuel gas generator anti-backfire device with double-security mechanism |
| CN107218156A (en) * | 2017-07-26 | 2017-09-29 | 北京航空航天大学 | Hybrid rocket engine pintle formula becomes larynx footpath Effuser device |
| CN109405641A (en) * | 2018-11-13 | 2019-03-01 | 湖北航天化学技术研究所 | A kind of gas generator jet pipe one-way sealing structure |
-
2022
- 2022-02-17 CN CN202210144246.0A patent/CN114483370A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3078668A (en) * | 1959-02-02 | 1963-02-26 | Garrett Corp | Gas generator regulating system |
| EP2136064A2 (en) * | 2008-06-19 | 2009-12-23 | Bayern-Chemie Gesellschaft für flugchemische Antriebe mbH | Gas generator |
| CN104791133A (en) * | 2015-03-17 | 2015-07-22 | 南京理工大学 | Automatic anti-backfire device for pasty propellant rocket motor |
| CN105257869A (en) * | 2015-09-30 | 2016-01-20 | 南京理工大学 | Paste fuel gas generator anti-backfire device with double-security mechanism |
| CN107218156A (en) * | 2017-07-26 | 2017-09-29 | 北京航空航天大学 | Hybrid rocket engine pintle formula becomes larynx footpath Effuser device |
| CN109405641A (en) * | 2018-11-13 | 2019-03-01 | 湖北航天化学技术研究所 | A kind of gas generator jet pipe one-way sealing structure |
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