CN109990099A - A kind of high pressure air governor bacterium valve - Google Patents
A kind of high pressure air governor bacterium valve Download PDFInfo
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- CN109990099A CN109990099A CN201910231821.9A CN201910231821A CN109990099A CN 109990099 A CN109990099 A CN 109990099A CN 201910231821 A CN201910231821 A CN 201910231821A CN 109990099 A CN109990099 A CN 109990099A
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- spool
- channel
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- pneumatic
- shell
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Classifications
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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
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention relates to valve technology fields, and in particular to a kind of high pressure air governor bacterium valve.Including first shell, spool, second shell and pneumatic member；There is dielectric cavity inside first shell, connection dielectric cavity and the extraneous channel that enters are offered in first shell, the flow pass for being additionally provided with connection dielectric cavity and the external world is opened in first shell；Spool is arranged in valve chamber, is located at and enters between channel and flow pass；There is pneumatic cavity inside second shell, there is connection pneumatic cavity and external air-path interface on the second shell outer wall；Pneumatic member can move back and forth in pneumatic cavity under the driving of external air source and band movable valve plug moves back and forth simultaneously；The access formed by entrance channel and flow pass is cut off or opened when the spool is suitable for moving back and forth in dielectric cavity, the direction of motion of the spool and the entrance channel are perpendicular.The present invention can make the flow velocity of medium more stable, while also have many advantages, such as high reliablity, adaptable.
Description
Technical field
The present invention relates to valve technology fields, and in particular to a kind of high pressure air governor bacterium valve.
Background technique
Mushroom valve, also known as bacterium valve, due to shape of the shape similar to mushroom fungi of its spool, therefore referred to as bacterium valve.Bacterium valve
With with simple structure and reliable sealing, the features such as fast response time, and most importantly bacterium valve can have in medium
Preferable sealing effect is kept in the case where high pressure.Known bacterium valve usually passes through servo motor or manually controls its spool
It opens.In actual use, there is serious service life in servo motor, and manually control what presence lavished labor on
Problem.
Disclose a kind of bacterium valve in the utility model patent that notification number is CN201599414U, including valve seat, inlet housing,
Middle casing and spool, the valve seat are fixed on one end of inlet housing, and the middle casing is fixed on the another of inlet housing
It holds, is provided with entrance on the valve seat, outlet is provided on the inlet housing, a connection is provided in the inlet housing
The fluid passage of entrance and exit, the spool are arranged in fluid passage, and closing sealing pair is provided between valve seat,
Be characterized in that, the high pressure ultra-low temperature pneumatic controlled mushroom valve further includes control device, the control device include control chamber, valve rod,
The other end of middle casing is arranged in spring and the pneumatic member being arranged in control chamber, the control chamber, and the pneumatic member can
The back and forth movement in control chamber；Control mouth is provided in the control chamber, the control mouth is connected with control pressure source；The valve
One end of bar and pneumatic member are connected, and the other end of the valve rod is passed through from intermediate casing center to be connected with the spool in inlet housing afterwards
It connects, sealing device is provided between the valve rod and inlet housing, the spring is placed on valve rod, and one end is pressed in pneumatic member
On, the other end is pressed on inlet housing.It is disclosed above in the prior art, by the side of spool install spring and
Pneumatic pneumatic member pushes valve rod, so that the bacterium valve is had the function of gas control with this, avoids using brought by servo motor
Service life low disadvantage.
However, the Pneumatic-control type bacterium valve in above-mentioned technical proposal still has problem in actual use: we are known, bacterium valve
It applies under hyperbaric environment more.When spool is opened, during high-pressure medium flow to outlet from entrance, high-pressure medium can be straight
Connect the front for impacting spool, a thrust backward applied to spool, and then oppress the pneumatic member at spool rear, pneumatic member into
And the gas in control chamber is oppressed, conversely, when the gas pressure at pneumatic member rear is greater than the impact force of high-pressure medium,
Spool can push forward.In above process, spool can generate reciprocal displacement, and the open amount of entire valve changes, into
And the flow velocity of medium is caused to change, cause velocity of medium unstable.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcoming Pneumatic-control type bacterium valve in the prior art that can lead when in use
The defect of velocity of medium shakiness is caused, and then a kind of high pressure air governor bacterium valve that flow velocity is more steady is provided.
For this purpose, technical solution provided by the invention is as follows:
A kind of high pressure air governor bacterium valve, comprising:
First shell, inside have dielectric cavity, and connection dielectric cavity and the extraneous channel that enters are offered in first shell, the
It is opened on one shell and is additionally provided with connection dielectric cavity and extraneous flow pass；
Spool is arranged in valve chamber, is located at and enters between channel and flow pass；
Second shell, inside have pneumatic cavity, have connection pneumatic cavity and external gas circuit on the second shell outer wall
Interface；
Pneumatic member is fixedly connected with spool, be arranged in pneumatic cavity, can under the driving of external air source in pneumatic cavity into
Row is moved back and forth and is moved back and forth simultaneously with movable valve plug；
To the access by being formed into channel and flow pass when the spool is suitable for moving back and forth in dielectric cavity
It is cut off or is opened, the direction of motion of the spool and the entrance channel are perpendicular.
It as a kind of perferred technical scheme, include spool sliding cavity in the dielectric cavity, the spool sliding cavity
Central axes and the central axes for entering channel are perpendicular.
As a kind of perferred technical scheme, further includes:
Connecting rod, one end are connect with spool, and the other end is connect with pneumatic member, suitable for by the movement conduction of pneumatic member to spool；
Partition is arranged between pneumatic cavity and dielectric cavity, is suitable for partition pneumatic cavity and dielectric cavity, is provided on the partition
For connecting rod in the hole for being wherein sealed sliding.
As a kind of perferred technical scheme, the end face of the spool is suitable in cutting by entering channel and flow pass shape
At access when be connected on the side wall in channel.
As a kind of perferred technical scheme, further includes:
First elastic component is arranged between spool and the inner wall of first shell；
Second elastic component is arranged between pneumatic member and partition；
First elastic component and the second elastic component provide pressure for abutting of the end face on the side wall for entering channel of spool
Power.
As a kind of perferred technical scheme, sealing is provided on the spool and the end face abutted against for entering channel
Circle.
As a kind of perferred technical scheme, described to be parallel to each other into channel and flow pass.
As a kind of perferred technical scheme, described to enter channel and flow pass dislocation arrangement.
Technical solution of the present invention has the advantages that
1, bacterium valve provided by the invention, including first shell, spool, second shell and pneumatic member；Tool inside first shell
There is dielectric cavity, is offered in first shell and be connected to dielectric cavity and the extraneous channel that enters, opened in first shell and be additionally provided with connection Jie
Matter chamber and extraneous flow pass；Spool is arranged in valve chamber, is located at and enters between channel and flow pass；Inside second shell
With pneumatic cavity, there is connection pneumatic cavity and external air-path interface on the second shell outer wall；Pneumatic member is fixed with spool
Connection is arranged in pneumatic cavity, can move back and forth in pneumatic cavity under the driving of external air source and simultaneously with movable valve plug
It moves back and forth；The spool is suitable for when moving back and forth in dielectric cavity to by entering channel and flow pass formed
Access is cut off or is opened, and the direction of motion of the spool and the entrance channel are perpendicular.
In above-mentioned bacterium valve, after external air source is entered in pneumatic cavity by air-path interface, will push pneumatic member to
Internal motion, and then pneumatic member pushes spool to open medium channel, when gas is extracted out out of pneumatic cavity, pneumatic member is made by negative pressure
With and move out, and then pneumatic member band movable valve plug cut off medium channel；In the state that spool opens medium channel, due to valve
The direction of motion of core and being mutually perpendicular into channel for medium, medium will not be directly in the direction of motion of spool in flow process
Upper impact spool, and then also avoid the flowing due to medium and the movement of spool is interfered, make the unlatching appearance of spool
State keeps stablizing, and then guarantees that the flow velocity of medium maintains to stablize.
It 2, include spool sliding cavity in the dielectric cavity in bacterium valve provided by the invention, in the spool sliding cavity
Axis and the central axes for entering channel are perpendicular.Using spool sliding cavity, spool can slidably reciprocate in spool sliding cavity,
The constraint that spool sliding cavity is received in sliding process keeps the sliding action of spool more stable, meanwhile, medium exists for spool
Lateral impact force can also be conducted to the side wall of spool sliding cavity by spool, and spool is avoided to receive excessive side impacting force
And dislocation or deformation occurs.
It 3, further include connecting rod and partition in bacterium valve provided by the invention, connecting rod one end is connect with spool, the other end and pneumatic
Part connection, suitable for by the movement conduction of pneumatic member to spool；Partition is arranged between pneumatic cavity and dielectric cavity, and it is pneumatic to be suitable for partition
Chamber and dielectric cavity are provided with for connecting rod in the hole for being wherein sealed sliding on the partition.Utilize above structure, the work of partition
With being to separate dielectric cavity and gas control chamber, it is achieved the respective function of the two, while connecting rod and bulkhead seal
And it is slidably mounted, ensure that the linkage of pneumatic member and spool.
4, in bacterium valve provided by the invention, the end face of the spool is suitable for being formed in cutting by entering channel and flow pass
Access when be connected on the side wall in channel.In said structure, during spool travels forward with medium channel
It is formed and is abutted, since spool is abutted from the direction entered perpendicular to medium with medium channel formation, compared to others
Switching spool form, this form can more directly cut off the flowing of medium, and the pressure of medium will not act on spool,
Be conducive to the sealing performance for guaranteeing spool when used for a long time.
It 5, further include the first elastic component and the second elastic component in bacterium valve provided by the invention, the first elastic component is arranged in valve
Between core and the inner wall of first shell；Second elastic component is arranged between pneumatic member and partition；First elastic component and second
Elastic component for spool end face enter channel side wall on abutting pressure is provided.Although normal condition is not into pneumatic cavity
When inflation, pneumatic member can be such that spool is kept closed by negative pressure, however the presence of negative pressure will lead to second shell
Installation interface equally exist negative pressure, therefore be easy to make the interface of second shell to generate sealing under long-time service state and ask
Topic.At this point, passing through the effect of the two elastic components, pressure can be provided for spool, even if guaranteeing that spool is not provided in pneumatic member
It still can keep abutting state with the side wall of medium channel in the case where negative pressure, ensure that the leakproofness of entire bacterium valve, improve
Reliability.
6, described to be parallel to each other into channel and flow pass in bacterium valve provided by the invention.Such design can make
For bacterium valve when being installed on pipeline, it is that bacterium valve can be more preferable that the installation of bacterium valve, which can be realized, without carrying out extra turning in pipeline
The duty requirements using pipeline.
7, described to enter channel and flow pass dislocation arrangement in bacterium valve provided by the invention.In said structure, due to
Into channel and flow pass dislocation arrangement, when under spool is in the open state, medium is in the mistake for flowing through entire medium channel
Cheng Zhong, it may occur that tortuous turning can be such that the medium of flowing is buffered in bacterium valve, reduce the pulse of medium itself, make to flow
The flow velocity of medium out is more stable, pulse is less.
In conclusion bacterium valve provided by the invention can make the flow velocity of medium more stable, at the same also have high reliablity,
The advantages that adaptable.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of the section structure of the bacterium valve provided in the embodiment of the present invention 1；
Description of symbols:
1- first shell, 2- second shell, 3- enter channel, 4- flow pass, 5- spool, 6- air-path interface,
7- pneumatic cavity, 8- pneumatic member, the second elastic component of 9-, the first elastic component of 10-, 11- spool sliding cavity, 12- partition, 13-
Connecting rod.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
It is embodiment 1 provided by the invention, the present invention provides a kind of high pressure air governor bacterium valves, are typically employed in referring to Fig. 1
Upstream medium is such as in low-temperature liquid oxygen methane engine, to be needed before the engine is started up to fluid path under the work condition state of high pressure
System is pre-chilled, and the switch motion for the valve that the medium of discharge is arranged by downstream is pre-chilled to realize.Valve downstream is high pressure
Medium needs valve itself to be able to bear high pressure, and in off position when reach preferable sealing performance, it is provided in the present invention
Bacterium valve is particularly suitable for such operating condition, in addition to this can also be applied under other work condition environments.
Bacterium valve provided by the invention, including first shell 1, spool 5, second shell 2 and pneumatic member 8；Inside first shell 1
With dielectric cavity, connection dielectric cavity and extraneous are offered in first shell 1 and enters channel 3, opens the company of being additionally provided in first shell 1
Logical dielectric cavity and extraneous flow pass 4；Spool 5 is arranged in valve chamber, is located at and enters between channel 3 and flow pass 4.Into
Channel 3 and flow pass 4, and connect the medium that other channels between the two channels together constitute in the present embodiment and lead to
Road；2 border of second shell is provided with flange-type structure, is pressed second shell 2 after flange-type structure using a circle bolt
In first shell 1, a partition 12 is additionally provided between second shell 2 and first shell 1.There is pneumatic cavity inside second shell 2
7, there is on 2 outer wall of second shell connection pneumatic cavity 7 and external air-path interface 6；Pneumatic member 8 is fixedly connected with spool 5,
Be arranged in pneumatic cavity 7, can move back and forth in pneumatic cavity 7 under the driving of external air source and simultaneously with movable valve plug 5 into
Row moves back and forth；It is formed when the spool 5 is suitable for moving back and forth in dielectric cavity to by entering channel 3 and flow pass 4
Access cut off or opened, the direction of motion of the spool 5 and it is described enter channel 3 it is perpendicular.
The movement of the single degree of freedom is carried out to guarantee spool 5 in dielectric cavity, includes that spool is sliding in the dielectric cavity
Dynamic chamber 11, the central axes of the spool sliding cavity 11 and the central axes for entering channel 3 are perpendicular.Utilize spool sliding cavity 11, valve
Core 5 can slidably reciprocate in spool sliding cavity 11, and the constraint of spool sliding cavity 11 is received in sliding process, make spool 5
Sliding action it is more stable, meanwhile, it is sliding to spool that medium can also pass through the conduction of spool 5 in lateral impact force for spool 5
On the side wall of dynamic chamber 11, avoids spool 5 from receiving excessive side impacting force and occur to misplace or deform.
It further include connecting rod 13 and partition 12 to realize the linkage of pneumatic member 8 Yu spool 5,13 one end of connecting rod and spool 5 connect
It connects, the other end is connect with pneumatic member 8, suitable for by the movement conduction of pneumatic member 8 to spool 5；The setting of partition 12 is in pneumatic cavity 7 and is situated between
Between matter chamber, it is suitable for partition pneumatic cavity 7 and dielectric cavity, is provided on the partition 12 and is sealed sliding wherein for connecting rod 13
Hole.When pneumatic member 8, which is pressurized, to be moved, movement is by the way that in the conduction to spool 5 of connecting rod 13, driving spool 5 is moved, simultaneously because even
Bar 13 and the sealing installation of partition 12, therefore not will lead to and generate interconnection between pneumatic cavity 7 and dielectric cavity.
In the present embodiment, the end face of the spool 5 is suitable for cutting off the access by being formed into channel 3 and flow pass 4
When be connected on the side wall in channel 3, be provided with sealing ring on the spool 5 and the end face abutted against for entering channel 3.
In said structure, it is abutted during spool 5 travels forward with medium channel formation, since spool 5 is from perpendicular to Jie
The direction that matter enters is abutted with medium channel formation, therefore compared to other 5 switch forms of spool, this form can be more
The flowing of direct cutting medium, the pressure of medium will not act on spool 5, be conducive to guarantee spool 5 when used for a long time
Sealing performance.
Although normal condition is not inflated into pneumatic cavity 7, pneumatic member 8 can be such that the holding of spool 5 closes by negative pressure
Conjunction state, however the installation interface that the presence of negative pressure will lead to second shell 2 equally exists negative pressure, therefore state is used for a long time
It is easy to make the interface of second shell 2 to generate sealing problem down.Therefore, the first elastic component 10 and are additionally provided in the present embodiment
Two elastic components 9, the first elastic component 10 are arranged between spool 5 and the inner wall of first shell 1；Second elastic component 9 is arranged pneumatic
Between part 8 and partition 12；First elastic component 10 and the second elastic component 9 are the end face of spool 5 on the side wall for entering channel 3
Abutting provide pressure.By the effect of the two elastic components, pressure can be provided for spool 5, even if guaranteeing spool 5 pneumatic
Part 8 still can keep abutting state with the side wall of medium channel in the case where not providing negative pressure, ensure that the sealing of entire bacterium valve
Property, improve reliability.
In the present embodiment, the first elastic component 10 is specially spring, is arranged between spool 5 and first shell 1, in spool 5
Elastic force is provided when opening.Second elastic component 9 is specially bellows, and bellows one end is encapsulated on partition 12, covers in connecting rod 13
Outside, and pneumatic member 8 is then encapsulated in the other end of bellows.It is that bellows is compressed when being filled with high pressure gas in pneumatic cavity 7,
Pneumatic member 8 pushes connecting rod 13；When discouraged, bellows is sprung back under the pressure of therein, is spool 5 and medium channel
Abutting provide elastic force.
It is described to be parallel to each other into channel 3 and flow pass 4 in the present embodiment.Such design can be such that bacterium valve is pacifying
When being attached on pipeline, the installation of bacterium valve is can be realized without carrying out extra turning in pipeline, is that bacterium valve can be preferably using pipe
The duty requirements on road.Further, described to enter channel 3 and the dislocation arrangement of flow pass 4.In said structure, due to entering
Channel 3 and the dislocation arrangement of flow pass 4, when under spool 5 is in the open state, medium is in the process for flowing through entire medium channel
In, it may occur that tortuous turning can be such that the medium of flowing is buffered in bacterium valve, reduce the pulse of medium itself, make to flow out
Medium flow velocity is more stable, pulse is less.
The operating principle of bacterium valve provided in this embodiment is:
In above-mentioned bacterium valve, after external air source is entered in pneumatic cavity 7 by air-path interface 6, pneumatic member 8 will push
Internally move, so pneumatic member 8 push spool 5 open medium channel, when gas is extracted out out of pneumatic cavity 7, pneumatic member 8 by
Suction function moves out under the action of two elastic components simultaneously, and then cuts off medium channel with movable valve plug 5；In spool 5
In the state of opening medium channel, due to the direction of motion of spool 5 and being mutually perpendicular into channel 3 for medium, medium is flowing
Spool 5 will not be impacted directly in the direction of motion of spool 5 in the process, so also avoid flowing due to medium and to valve
The movement of core 5 interferes, and the unlatching posture of spool 5 is made to keep stablizing, and then guarantees that the flow velocity of medium maintains to stablize.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (8)
1. a kind of high pressure air governor bacterium valve characterized by comprising
First shell, inside have dielectric cavity, and connection dielectric cavity and extraneous are offered in first shell and enters channel, first shell
It is opened on body and is additionally provided with connection dielectric cavity and extraneous flow pass；
Spool is arranged in valve chamber, is located at and enters between channel and flow pass；
Second shell, inside have pneumatic cavity, have connection pneumatic cavity and external air-path interface on the second shell outer wall；
Pneumatic member is fixedly connected with spool, is arranged in pneumatic cavity, can be carried out in pneumatic cavity under the driving of external air source past
Multiple movement simultaneously moves back and forth with movable valve plug simultaneously；
The access by being formed into channel and flow pass is carried out when the spool is suitable for moving back and forth in dielectric cavity
Cutting is opened, and the direction of motion of the spool and the entrance channel are perpendicular.
2. a kind of high pressure air governor bacterium valve according to claim 1, which is characterized in that include that spool is sliding in the dielectric cavity
Dynamic chamber, the central axes of the spool sliding cavity and the central axes for entering channel are perpendicular.
3. a kind of high pressure air governor bacterium valve according to claim 1, which is characterized in that further include:
Connecting rod, one end are connect with spool, and the other end is connect with pneumatic member, suitable for by the movement conduction of pneumatic member to spool；
Partition is arranged between pneumatic cavity and dielectric cavity, is suitable for partition pneumatic cavity and dielectric cavity, is provided on the partition for even
Bar is in the hole for being wherein sealed sliding.
4. a kind of high pressure air governor bacterium valve according to claim 1, which is characterized in that the end face of the spool is suitable for cutting off
It is connected to when the access formed by entrance channel and flow pass on the side wall in channel.
5. a kind of high pressure air governor bacterium valve according to claim 3, which is characterized in that further include:
First elastic component is arranged between spool and the inner wall of first shell；
Second elastic component is arranged between pneumatic member and partition；
First elastic component and the second elastic component provide pressure for abutting of the end face on the side wall for entering channel of spool.
6. a kind of high pressure air governor bacterium valve according to claim 4, which is characterized in that the spool and offseting into channel
Sealing ring is provided on the end face connect.
7. a kind of high pressure air governor bacterium valve according to claim 1, which is characterized in that described to enter channel and flow pass phase
It is mutually parallel.
8. a kind of high pressure air governor bacterium valve according to claim 7, which is characterized in that described to enter channel and flow pass mistake
Position arrangement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910231821.9A CN109990099A (en) | 2019-03-25 | 2019-03-25 | A kind of high pressure air governor bacterium valve |
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| CN201910231821.9A CN109990099A (en) | 2019-03-25 | 2019-03-25 | A kind of high pressure air governor bacterium valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111664257A (en) * | 2019-09-30 | 2020-09-15 | 蓝箭航天空间科技股份有限公司 | Valve structure of liquid rocket engine and liquid rocket engine |
| CN114215936A (en) * | 2021-11-05 | 2022-03-22 | 上海空间推进研究所 | Pneumatic double-sealing control valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664257A (en) * | 2019-09-30 | 2020-09-15 | 蓝箭航天空间科技股份有限公司 | Valve structure of liquid rocket engine and liquid rocket engine |
| CN111664257B (en) * | 2019-09-30 | 2021-09-14 | 蓝箭航天空间科技股份有限公司 | Valve structure of liquid rocket engine and liquid rocket engine |
| CN114215936A (en) * | 2021-11-05 | 2022-03-22 | 上海空间推进研究所 | Pneumatic double-sealing control valve |
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Application publication date: 20190709 |