CN119900860A - A closable and adjustable cavitation tube and aerospace engine system - Google Patents
A closable and adjustable cavitation tube and aerospace engine system Download PDFInfo
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- CN119900860A CN119900860A CN202510124144.6A CN202510124144A CN119900860A CN 119900860 A CN119900860 A CN 119900860A CN 202510124144 A CN202510124144 A CN 202510124144A CN 119900860 A CN119900860 A CN 119900860A
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- cavitation tube
- throttle
- adjustable cavitation
- cone
- valve core
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
- F16K47/16—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths the throttling member being a cone
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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
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/44—Feeding propellants
- F02K9/56—Control
- F02K9/58—Propellant feed valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/48—Attaching valve members to screw-spindles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/01—Damping of valve members
- F16K47/012—Damping of valve members by means of a resilient damping element
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
本发明实施例提供一种可关闭的可调汽蚀管及航天发动机系统，包括可调汽蚀管阀体、节流锥、节流锥上端的驱动机构、以及节流锥外侧的圆盘状的阀芯；侧方的进口端通过贯通孔与可调汽蚀管阀体的腔体连通；节流锥的下端朝向可调汽蚀管阀体的出口端，且节流锥的下端设置有圆锥结构，可调汽蚀管阀体的出口端内设置有节流台，节流台的最小口径大于圆锥结构的最大外径；可调汽蚀管阀体内还固定连接有阀座，阀座的顶面与节流锥的轴线相垂直，阀座的中部开设有通孔，阀芯的外径大于通孔的孔径；阀座位于节流台和贯通孔之间。本技术方案在可调汽蚀管上集成了阀芯和阀座组成的关闭结构，实现了可调汽蚀管的可靠关闭密封，并简化了航天发动机系统的结构。
The embodiment of the present invention provides a closable adjustable cavitation tube and aerospace engine system, including an adjustable cavitation tube valve body, a throttle cone, a driving mechanism at the upper end of the throttle cone, and a disc-shaped valve core outside the throttle cone; the lateral inlet end is connected to the cavity of the adjustable cavitation tube valve body through a through hole; the lower end of the throttle cone faces the outlet end of the adjustable cavitation tube valve body, and the lower end of the throttle cone is provided with a cone structure, and a throttle table is provided in the outlet end of the adjustable cavitation tube valve body, and the minimum diameter of the throttle table is greater than the maximum outer diameter of the cone structure; a valve seat is also fixedly connected to the adjustable cavitation tube valve body, the top surface of the valve seat is perpendicular to the axis of the throttle cone, a through hole is opened in the middle of the valve seat, and the outer diameter of the valve core is greater than the aperture of the through hole; the valve seat is located between the throttle table and the through hole. This technical solution integrates a closing structure composed of a valve core and a valve seat on the adjustable cavitation tube, realizes a reliable closing and sealing of the adjustable cavitation tube, and simplifies the structure of the aerospace engine system.
Description
Technical Field
The invention relates to the technical field of space engines, in particular to a closable adjustable cavitation tube and a space engine system.
Background
The adjustable cavitation tube is a common regulator in the technical field of aerospace and aviation, and the throttle area of the throat is regulated by controlling the stroke of the regulating cone, so that the medium flow required by the engine is regulated, and the thrust generated by the engine is regulated to meet the requirements of variable working conditions or variable thrust. The adjustable cavitation tube is driven by a motor and other driving devices to move, meets the system adjustment requirement in a certain flow range, and has the advantages of high adjustment precision and simple and reliable structure.
In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art:
In the existing space flight and aeroengine system, an adjustable cavitation tube is generally used for calibrating and adjusting the working condition of the system, but the common adjustable cavitation tube is of a normally open structure and cannot realize a closing function, so that a stop valve is connected in series in the system to realize the opening and closing functions of the system, the complexity of the system is increased to a certain extent, and the optimization of the system is not facilitated. Therefore, how to optimize the adjustable cavitation tube, thereby simplifying the system structure, is a problem to be solved.
Disclosure of Invention
The embodiment of the invention provides a closable adjustable cavitation tube and an aerospace engine system, which are used for simplifying the structure of the aerospace engine system, so that a stop valve is not required to be additionally arranged for the adjustable cavitation tube.
In order to achieve the above purpose, on the one hand, the embodiment of the invention provides a closable adjustable cavitation tube, which comprises an adjustable cavitation tube valve body, a cylindrical throttle cone, a driving mechanism and a disc-shaped valve core, wherein a cavity is arranged inside the adjustable cavitation tube valve body, the cylindrical throttle cone is coaxially arranged in the adjustable cavitation tube valve body, the driving mechanism is connected to the upper end of the throttle cone, the disc-shaped valve core is connected to the outer side of the throttle cone, the bottom surface of the valve core is perpendicular to the axis of the throttle cone, an inlet end is fixedly connected to the side of the adjustable cavitation tube valve body, the inlet end is communicated with the cavity inside the adjustable cavitation tube valve body through a through hole, the lower end of the throttle cone faces towards the outlet end of the adjustable cavitation tube valve body, the lower end of the throttle cone is provided with a conical structure, the inner side of the outlet end of the adjustable cavitation tube valve body is provided with a throttle table, the minimum caliber of the throttle table is larger than the maximum outer diameter of the conical structure, the adjustable cavitation tube valve body is fixedly connected with a valve seat, the top surface of the valve seat is perpendicular to the axis of the throttle cone, the middle part of the valve seat is provided with a through hole, the outer diameter of the valve core is larger than the aperture of the through hole, the valve core is in the direction along the axis of the adjustable cavitation tube, the axis passes through the valve body and can move upwards along the axial direction between the throttle table and the throttle table.
Furthermore, the closable adjustable cavitation tube further comprises a valve core supporting table connected to the outer side of the throttling cone, an annular groove is formed in the bottom of the valve core supporting table, the valve core is sleeved in the annular groove, the valve core is sleeved on the outer side of the throttling cone, and a buffer spring is further arranged between the top surface of the valve core and the bottom of the annular groove.
Further, the valve core supporting table and the throttling cone form an integrated structure.
Further, a guide sealing ring is arranged between the valve core and the throttling cone.
Further, a sealing gasket mounting groove is formed in the bottom surface of the valve core, an annular sealing gasket is arranged in the sealing gasket mounting groove, an annular boss protruding upwards is further arranged on the top surface of the valve seat and located below the sealing gasket, the bottom surface of the sealing gasket is a plane, and the sealing gasket is made of metal or nonmetal.
Further, the top surface of the valve seat is also provided with an annular conical table protruding upwards, the bottom surface of the valve core is provided with a conical groove matched with the conical table, and the valve seat and the valve core are both made of metal materials.
Further, the buffer spring is a cylindrical spring or a belleville spring.
Further, the valve core supporting table is also provided with air holes, and the air holes penetrate through the upper surface of the valve core supporting table and the bottom of the annular groove.
Furthermore, the top end of the adjustable cavitation tube valve body is also connected with an end cover, a throttling cone through hole is formed in the middle of the end cover, the throttling cone through hole is sleeved on the outer side of the throttling cone, a first sealing ring is further arranged between the end cover and the throttling cone, and a second sealing ring is further arranged between the end cover and the adjustable cavitation tube valve body.
On the other hand, the embodiment of the invention also provides an aerospace engine system, and the pipeline of the aerospace engine system is connected with the closable adjustable cavitation tube in series.
The technical scheme has the following beneficial effects:
According to the technical scheme, the valve core structure is integrated on the adjustable cavitation tube adjusting cone of the aerospace engine system, the valve seat structure is integrated on the valve body, and the valve core valve seat sealing surface can be rapidly contacted when the valve core valve seat sealing surface is closed through the rapid action of the driving mechanism, so that the reliable closing and sealing functions of the adjustable cavitation tube are realized. Therefore, the closable adjustable cavitation tube in the technical scheme can realize the opening and closing and adjusting functions, and also keeps the advantages of simple and reliable structure and high adjusting precision of the adjustable cavitation tube, thereby omitting a stop valve on a pipeline, avoiding the problem that two or more valves are simultaneously used on a system to realize the adjusting and opening and closing functions, simplifying the structure and meeting the requirement of continuous optimization of an engine system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a closable adjustable cavitation tube according to an embodiment of the present invention;
Reference numeral 1, an adjustable cavitation tube valve body; 2, a throttle cone, 3, a valve seat, 4, a valve core, 5, an end cover, 6, a sealing gasket, 7, a guiding sealing ring, 8, a buffer spring, 9, a second sealing ring, 10, a first sealing ring, 11, a driving mechanism, 12, a cavity, 13, a throttle table, 14, a through hole, 15 and a valve core supporting table.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the embodiment of the invention provides a closable adjustable cavitation tube, which comprises an adjustable cavitation tube valve body 1, a cylindrical throttle cone 2, a driving mechanism 11 and a disk-shaped valve core 4, wherein a cavity 12 is arranged in the adjustable cavitation tube valve body 1, the cylindrical throttle cone 2 is coaxially arranged in the adjustable cavitation tube valve body 1, the driving mechanism 11 is connected to the upper end of the throttle cone 2, the disk-shaped valve core 4 is connected to the outer side of the throttle cone 2, the bottom surface of the valve core 4 is perpendicular to the axis of the throttle cone 2, the outer diameter of the valve core is smaller than the caliber of the cavity 12 so that the valve core moves up and down along with the throttle cone 2 in the cavity 12, the side of the adjustable cavitation tube valve body 1 is fixedly connected with an inlet end, the inlet end is communicated with the cavity 12 in the adjustable cavitation tube valve body 1 through a through hole, namely, as shown in the figure, the axial direction of a medium inlet end is perpendicular to the adjustable cavitation tube valve body 1, the lower end of the throttle cone 2 faces to the outlet end of the adjustable cavitation tube valve body 1, the lower end of the throttle cone 2 is perpendicular to the axis, the lower end of the throttle cone 2 is arranged at the throttle cone 2, the lower end is smaller than the throttle cone 1, the throttle cone diameter is smaller than the throttle cone 13, and the throttle cone is smaller than the throttle cone 1, and the throttle cone is smaller than the throttle cone 13, and the medium is smaller than the throttle cone 1, and has the medium flow diameter and smaller than the medium, and has the medium flow diameter and smaller than the medium flow. The adjustable cavitation tube valve body 1 is internally and fixedly connected with a valve seat 3, the top surface of the valve seat 3 is perpendicular to the axis of the throttle cone 2, a through hole 14 is formed in the middle of the valve seat 3, the outer diameter of the valve core 4 is larger than the aperture of the through hole 14, the valve seat 3 is positioned between the throttle table 13 and the through hole in the direction along the axis of the adjustable cavitation tube valve body 1, and the throttle cone 2 can move along the axial direction of the adjustable cavitation tube valve body 1.
In the technical scheme, the valve seat 3 is integrated on the valve body 1 of the adjustable cavitation tube, the valve core 4 is arranged on the outer side of the throttling cone 2, and the valve core 4 can be rapidly contacted with the valve seat 3 to finish sealing through the rapid action of the driving mechanism 11, so that the adjustable cavitation tube is closed.
When the throttle cone 2 moves to the lowest limit position, the valve core 4 is in contact with the valve seat 3, the throttle cone 2 stops moving, and a medium at the upstream of the valve core 4 is blocked from entering the throttle table 13, so that the closing function of the adjustable cavitation tube is realized, at the moment, the conical structure at the lower end of the throttle cone 2 stretches into the throat and enters the throttle table 13, and the throttle cone 2 is in a non-adjusting state.
When the throttle cone 2 moves upwards, after a positioning shift occurs, the valve core 4 and the valve seat 3 are separated, the upstream medium starts to flow downwards, the opening of the valve core 4 enters a set range, cavitation occurs after the medium flows through the conical structure at the lower end of the throttle cone 2 and the throat part of the throttle table 13, the adjustable cavitation tube starts to work, and the medium flow is changed along with the up-and-down movement of the throttle cone 2.
Therefore, the closable adjustable cavitation tube of the technical scheme not only can realize the opening and closing and adjusting functions, but also keeps the advantages of simple and reliable structure and high adjusting precision of the adjustable cavitation tube, thereby avoiding the problem that two or more valves are simultaneously used on a system to realize the adjusting and opening and closing functions, simplifying the structure and meeting the requirement of continuous optimization of an engine system
Furthermore, the valve core 4 may be disposed only outside the throttle cone 2 and the valve core 4 and the throttle cone 2 are fixedly connected together, but in order to obtain a better sealing effect, a valve core supporting table 15 is preferably disposed outside the throttle cone 2, an annular groove is formed at the bottom of the valve core supporting table 15, the valve core 4 is sleeved in the annular groove, and meanwhile, a buffer spring 8 is further disposed between the top surface of the valve core 4 and the bottom of the annular groove. When the throttle cone 2 runs downwards, the valve core 4 is firstly contacted with the valve seat 3, and the buffer spring 8 and the medium force are compressed to provide the sealing force required by the valve core until the valve core supporting table 15 on the outer side of the valve core 4 is contacted with the upper part of the valve seat 3 to generate mechanical limit, and at the same time, the throttle cone 2 stops moving. In this process, the buffer spring 8 can be used to avoid the impact generated when the valve core 4 and the valve seat 3 are closed, thereby improving the service life.
At this time, an annular stepped surface extending from outside to inside is further required to be disposed at the bottom of the valve core supporting table 15, and the inner diameter of the annular stepped surface is smaller than the inner diameter of the annular groove, that is, a necking structure is formed at the bottom of the valve core supporting table 15, and the annular stepped surface shields a part of the lower end surface of the valve core 4, so that the valve core 4 can be effectively prevented from falling out of the valve core supporting table 15. Accordingly, the sum of the thickness of the valve core 4 and the thickness of the buffer spring 8 after compression should be smaller than the depth of the annular groove, so that the annular groove can provide a space for the valve core 4 to move up and down when the buffer spring 8 is compressed.
Furthermore, the valve core supporting table 15 and the throttle cone 2 may be fixedly connected by using separate parts, and may also have the same sealing function, but in order to make the connection between the two more reliable and avoid loosening, it is preferable that the valve core supporting table 15 and the throttle cone 2 are designed as an integral structure, and may be implemented by machining or the like.
Furthermore, a guiding sealing ring 7 is further arranged between the valve core 4 and the throttling cone 2, and the guiding sealing ring 7 can prevent media from entering downstream through an inner gap between the valve core 4 and the annular groove and then along a gap between the valve core 4 and the outer side of the throttling cone 2.
Furthermore, in order to obtain a better sealing effect, a sealing gasket mounting groove is formed in the bottom surface of the valve core 4, an annular sealing gasket 6 is arranged in the sealing gasket mounting groove, the sealing gasket 6 is fixedly connected in the sealing gasket mounting groove in an interference fit or bonding mode and the like so as to prevent falling off, an annular boss protruding upwards is further arranged on the top surface of the valve seat 3, and the boss is located below the sealing gasket 6. When the throttle cone 2 runs downwards, the sealing gasket 6 on the valve core 4 is firstly contacted with the boss on the valve seat 3, and the sealing gasket 6 and the boss form reliable sealing, so that compared with integral plane contact between the valve core 4 and the valve seat 3, the contact area between the sealing gasket 6 and the boss is smaller, the machining precision of parts is easier to master, and the sealing reliability is higher.
Further, the bottom surface of the sealing pad 6 is a plane, and the sealing pad 6 is made of metal or nonmetal, so that the sealing effect can be achieved, and suitable materials can be selected according to parameters such as pressure level and the like in specific application.
Furthermore, in addition to the above-mentioned form of matching the gasket 6 with the boss, a metal-metal sealing mode, preferably a conical surface sealing mode, may be adopted instead of the gasket 6, and at this time, an annular conical table protruding upward is provided on the top surface of the valve seat 3, a conical groove matching with the conical table is provided on the bottom surface of the valve core 4, and both the valve seat 3 and the valve core 4 are made of metal materials.
Further, the buffer spring 8 may be a cylindrical spring or a belleville spring, and may be a single spring or a plurality of springs, and may be designed according to the actual situation of the project.
Further, the valve core supporting table 15 is further provided with an air hole, the air hole penetrates through the upper surface of the valve core supporting table 15 and the bottom of the annular groove, when the valve core 4 is in contact with the valve seat 3, the throttle cone 2 can still move downwards for a certain distance until the valve core supporting table 15 is in contact with the valve seat 3, the buffer spring 8 is compressed synchronously, and in the process, the medium between the bottom of the annular groove and the upper surface of the valve core 4 can be smoothly discharged through the air hole so as not to prevent the medium from interfering with normal operation.
Furthermore, the top end of the adjustable cavitation tube valve body 1 is also connected with an end cover 5, a throttle cone through hole is formed in the middle of the end cover 5, the throttle cone through hole is sleeved outside the throttle cone 2, a first sealing ring 10 is further arranged between the end cover 5 and the throttle cone 2, a second sealing ring 9 is further arranged between the end cover 5 and the adjustable cavitation tube valve body 1, and the use of the two sealing rings can prevent a medium from entering a driving mechanism 11 or leaking into the environment.
The embodiment of the invention also provides the aerospace engine system, the closable adjustable cavitation tube is arranged in the pipeline of the aerospace engine system, and after the closable adjustable cavitation tube is adopted, a stop valve can be omitted in the pipeline, so that the problem that two valves are simultaneously used for realizing the adjusting and opening and closing functions is solved, the structure is simplified, and the requirement of continuous optimization of the aerospace engine system is met.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus the following claims are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate preferred embodiment of this invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The closable adjustable cavitation tube is characterized by comprising an adjustable cavitation tube valve body (1) with a cavity (12) arranged inside, a cylindrical throttle cone (2) coaxially arranged in the adjustable cavitation tube valve body (1), a driving mechanism (11) connected to the upper end of the throttle cone (2) and a disc-shaped valve core (4) connected to the outer side of the throttle cone (2), wherein the bottom surface of the valve core (4) is perpendicular to the axis of the throttle cone (2);
an inlet end is fixedly connected to the side of the adjustable cavitation tube valve body (1), and the inlet end is communicated with a cavity (12) in the adjustable cavitation tube valve body (1) through a through hole;
The lower end of the throttle cone (2) faces the outlet end of the adjustable cavitation tube valve body (1), a conical structure is arranged at the lower end of the throttle cone (2), a throttle table (13) is arranged at the inner side of the outlet end of the adjustable cavitation tube valve body (1), and the minimum caliber of the throttle table (13) is larger than the maximum outer diameter of the conical structure;
A valve seat (3) is fixedly connected in the valve body (1) of the adjustable cavitation tube, the top surface of the valve seat (3) is perpendicular to the axis of the throttling cone (2), a through hole (14) is formed in the middle of the valve seat (3), and the outer diameter of the valve core (4) is larger than the aperture of the through hole (14);
In a direction along the axis of the adjustable cavitation tube valve body (1), the valve seat (3) is located between the throttle table (13) and the through hole;
The throttle cone (2) can move along the axial direction of the adjustable cavitation tube valve body (1).
2. The closable adjustable cavitation tube according to claim 1, further comprising a valve core supporting table (15) connected to the outer side of the throttling cone (2), wherein an annular groove is formed in the bottom of the valve core supporting table (15), the valve core (4) is sleeved in the annular groove, the valve core (4) is sleeved on the outer side of the throttling cone (2), and a buffer spring (8) is further arranged between the top surface of the valve core (4) and the bottom of the annular groove.
3. The closable adjustable cavitation tube according to claim 2, characterized in that the valve element support table (15) forms a one-piece structure with the throttle cone (2).
4. The closable adjustable cavitation tube according to claim 2, characterized in that a guiding sealing ring (7) is also arranged between the valve element (4) and the throttle cone (2).
5. The closable adjustable cavitation tube according to claim 2, characterized in that a gasket mounting groove is formed in the bottom surface of the valve core (4), an annular gasket (6) is arranged in the gasket mounting groove, an annular boss protruding upwards is further arranged on the top surface of the valve seat (3) and located below the gasket (6), the bottom surface of the gasket (6) is a plane, and the gasket (6) is made of metal or nonmetal.
6. The closable adjustable cavitation tube according to claim 2, characterized in that the top surface of the valve seat (3) is further provided with an annular conical table protruding upwards, the bottom surface of the valve core (4) is provided with a conical groove matched with the conical table, and the valve seat (3) and the valve core (4) are both made of metal materials.
7. A closable adjustable cavitation tube according to claim 2, characterized in that the damping spring (8) is a cylindrical spring, or a belleville spring.
8. The closable adjustable cavitation tube according to claim 2, wherein the valve core support table (15) is further provided with ventilation holes, which penetrate through the upper surface of the valve core support table (15) and the groove bottom of the annular groove.
9. The closable adjustable cavitation tube according to claim 1, wherein the top end of the valve body (1) of the adjustable cavitation tube is further connected with an end cover (5), a throttle cone through hole is formed in the middle of the end cover (5), the throttle cone through hole is sleeved outside the throttle cone (2), a first sealing ring (10) is further arranged between the end cover (5) and the throttle cone (2), and a second sealing ring (9) is further arranged between the end cover (5) and the valve body (1) of the adjustable cavitation tube.
10. A space motor system comprising a closable adjustable cavitation tube according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510124144.6A CN119900860B (en) | 2025-01-26 | 2025-01-26 | A closable and adjustable cavitation tube and aerospace engine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510124144.6A CN119900860B (en) | 2025-01-26 | 2025-01-26 | A closable and adjustable cavitation tube and aerospace engine system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119900860A true CN119900860A (en) | 2025-04-29 |
| CN119900860B CN119900860B (en) | 2025-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202510124144.6A Active CN119900860B (en) | 2025-01-26 | 2025-01-26 | A closable and adjustable cavitation tube and aerospace engine system |
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| CN (1) | CN119900860B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203214912U (en) * | 2013-04-10 | 2013-09-25 | 乐山市热工仪表有限公司 | Multifunctional zero-leakage erosion-resisting stop valve |
| CN106090250A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of corrosion-resistant pressure-regulating valve |
| CN106401345A (en) * | 2015-07-31 | 2017-02-15 | 盖慈有限公司 | Valve for door closer |
| CN215293608U (en) * | 2021-07-13 | 2021-12-24 | 四川中油乐仪能源装备制造股份有限公司 | Throttling cut-off emptying valve |
| CN114962739A (en) * | 2022-06-06 | 2022-08-30 | 浙江新欧自控仪表有限公司 | Self-control return valve |
-
2025
- 2025-01-26 CN CN202510124144.6A patent/CN119900860B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203214912U (en) * | 2013-04-10 | 2013-09-25 | 乐山市热工仪表有限公司 | Multifunctional zero-leakage erosion-resisting stop valve |
| CN106401345A (en) * | 2015-07-31 | 2017-02-15 | 盖慈有限公司 | Valve for door closer |
| CN106090250A (en) * | 2016-08-26 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of corrosion-resistant pressure-regulating valve |
| CN215293608U (en) * | 2021-07-13 | 2021-12-24 | 四川中油乐仪能源装备制造股份有限公司 | Throttling cut-off emptying valve |
| CN114962739A (en) * | 2022-06-06 | 2022-08-30 | 浙江新欧自控仪表有限公司 | Self-control return valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119900860B (en) | 2025-09-12 |
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