CN112197034A - One-way throttle valve - Google Patents
One-way throttle valve Download PDFInfo
- Publication number
- CN112197034A CN112197034A CN202010946880.7A CN202010946880A CN112197034A CN 112197034 A CN112197034 A CN 112197034A CN 202010946880 A CN202010946880 A CN 202010946880A CN 112197034 A CN112197034 A CN 112197034A
- Authority
- CN
- China
- Prior art keywords
- wall
- throttling
- throttle valve
- core
- way throttle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
- F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
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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
- F16K27/0209—Check valves or pivoted 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
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The application belongs to the technical field of one-way throttle design, concretely relates to one-way throttle valve, include: a casing having a circulation chamber therein, and having an inlet port and an outlet port communicating with the circulation chamber; the throttling core is arranged in the flow cavity and provided with a throttling hole; the spring is arranged in the circulation cavity, one end of the spring is abutted against the inner wall of the circulation cavity, and the other end of the spring is abutted against the throttling core; the one-way throttle valve has: in a one-way throttling state, the spring compresses the throttling core to enable the outer wall of the throttling core to be in sealing contact with the inner wall of the circulation cavity, and the outflow port is communicated with the throttling hole; in a reverse flow state, the throttling core is stressed to compress the spring to move, the outer wall of the throttling core is separated from the inner wall of the flow cavity, and a reverse flow channel is formed between the throttling core and the inner wall of the flow cavity.
Description
Technical Field
The application belongs to the technical field of one-way throttling design, and particularly relates to a one-way throttling valve.
Background
Many places in the engineering need to carry out one-way throttling, to this, connect in parallel with choke valve, check valve and constitute one-way choke valve at present, realize one-way throttling, this kind of scheme easy to carry out, but need design more connecting line, the assembly process is comparatively loaded down with trivial details, and is not stable enough to the control of flow.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide a one-way throttle valve to overcome or mitigate at least one of the technical disadvantages of the known prior art.
The technical scheme of the application is as follows:
a one-way throttle valve, comprising:
a casing having a circulation chamber therein, and having an inlet port and an outlet port communicating with the circulation chamber;
the throttling core is arranged in the flow cavity and provided with a throttling hole;
the spring is arranged in the circulation cavity, one end of the spring is abutted against the inner wall of the circulation cavity, and the other end of the spring is abutted against the throttling core;
the one-way throttle valve has:
in a one-way throttling state, the spring compresses the throttling core to enable the outer wall of the throttling core to be in sealing contact with the inner wall of the circulation cavity, and the outflow port is communicated with the throttling hole;
in a reverse flow state, the throttling core is stressed to compress the spring to move, the outer wall of the throttling core is separated from the inner wall of the flow cavity, and a reverse flow channel is formed between the throttling core and the inner wall of the flow cavity.
According to at least one embodiment of the application, in the one-way throttling valve, a plurality of reverse flow grooves are formed between the outer wall of the throttling core and the inner wall of the flow cavity; one end of each reverse flow groove extends towards the inflow port, and the other end extends towards the outflow port.
According to at least one embodiment of the present application, in the above-mentioned one-way throttle valve, the outer wall of the throttle core is recessed to form each reverse flow groove.
According to at least one embodiment of the present application, in the above-described one-way throttle valve, the throttle core outer wall has a conical projection;
the throttle valve is in:
when in a one-way throttling state, the conical protrusion extends into the outflow port, and the outer wall of the conical protrusion is in sealing contact with the inner wall of the through cavity;
when the circulation is in a reverse state, the outer wall of the conical bulge is separated from the inner wall of the circulation cavity.
According to at least one embodiment of the present application, in the above one-way throttle valve, the housing is formed by butt-jointing two parts, wherein one part is a first housing having an inflow port; the other part is a second housing having an outflow port thereon.
According to at least one embodiment of the present application, in the above one-way throttle valve, the first housing and the second housing are screw-fittingly connected.
According to at least one embodiment of the present application, the above one-way throttle valve further includes:
the seal ring is arranged between the first shell and the second shell.
According to at least one embodiment of the present application, in the above one-way throttle valve, the first housing has a first relief hole;
the second shell is provided with a second safety hole;
the one-way throttle valve further comprises:
and the fuse wire penetrates through the first fuse hole and the second fuse hole.
According to at least one embodiment of the present application, the above one-way throttle valve further includes:
and a plurality of throttle plates having eccentric holes and arranged in the throttle holes in an axial direction.
According to at least one embodiment of the present application, in the above one-way throttle valve, the eccentric holes of the respective throttle plates are alternately distributed.
According to at least one embodiment of the present application, the above one-way throttle valve further includes:
and the gaskets are distributed among the throttling sheets.
According to at least one embodiment of the present application, the above one-way throttle valve further includes:
one end of the guide sleeve is connected with the throttling core, the interior of the guide sleeve is communicated with the throttling hole, and the outer wall of the guide sleeve is provided with a supporting protrusion;
one end of the spring, which faces the throttling core, is sleeved on the guide sleeve and is abutted to the support protrusion.
According to at least one embodiment of the present application, in the above one-way throttle valve, a plurality of reverse guide grooves are formed between the outer wall of the guide sleeve and the inner wall of the flow-through cavity;
one end of each reverse guide groove extends towards the inflow port, and the other end extends towards the outflow port.
According to at least one embodiment of the present application, in the above-described check throttle valve, the guide sleeve outer wall is recessed to form the respective reverse guide grooves.
According to at least one embodiment of the present application, the above one-way throttle valve further comprises;
and the plurality of screws are connected with the throttling core and the guide sleeve.
Drawings
FIG. 1 is a schematic structural diagram of a one-way throttle valve provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a throttle core provided in an embodiment of the present application;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic structural diagram of a guide sleeve provided in an embodiment of the present application;
FIG. 5 is a view from the direction B of FIG. 4;
wherein:
1-a fuse; 2-a throttling core; 3-a spring; 4-screws; 5-a first housing; 6-a second shell;
7-sealing ring; 8-a throttle plate; 9-a gasket; 10-a guide sleeve.
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1 to 5.
A one-way throttle valve, comprising:
a casing having a circulation chamber therein, and having an inlet port and an outlet port communicating with the circulation chamber;
a throttle core 2 having a throttle hole and provided in the flow chamber;
the spring 3 is arranged in the circulation cavity, one end of the spring is abutted against the inner wall of the circulation cavity, and the other end of the spring is abutted against the throttling core 2;
the one-way throttle valve has:
in a one-way throttling state, the spring 3 compresses the throttling core 2 to enable the outer wall of the throttling core 2 to be in sealing contact with the inner wall of the circulation cavity, and the outflow port is communicated with the throttling hole;
in a reverse circulation state, the throttling core 2 is stressed to compress the spring 3 to move, the outer wall of the throttling core is separated from the inner wall of the circulation cavity, and a reverse circulation channel is formed between the throttling core and the inner wall of the circulation cavity.
With respect to the one-way throttle valve disclosed in the above embodiments, it will be understood by those skilled in the art that the one-way throttle valve is in a one-way throttling state when fluid flows from the inlet to the outlet, and at this time, the fluid flows from the inlet to the outlet through the throttling hole, and throttling occurs when the fluid flows through the throttling hole; when the fluid flows from the outflow port to the inflow port, the fluid can push the throttling core 2 to compress the spring 3 to move, so that the outer wall of the throttling core 2 is separated from the inner wall of the circulation cavity, the one-way throttling valve is in a reverse circulation state, and at the moment, the fluid flows out from the inflow port through the reverse circulation channel from the outflow port without flowing through the throttling hole, and the throttling cannot occur.
For the one-way throttle valve disclosed in the above embodiment, it can be further understood by those skilled in the art that the one-way throttle valve is simple in structure, convenient to install, free of additional design of a connecting pipeline, and convenient for engineering application.
In some optional embodiments, in the above one-way throttle valve, a plurality of reverse flow grooves are arranged between the outer wall of the throttle core 2 and the inner wall of the flow cavity; one end of each reverse flow groove extends towards the inflow port, and the other end extends towards the outflow port.
As for the one-way throttle valve disclosed in the above embodiments, it can be understood by those skilled in the art that the fluid flows from the outlet to the inlet, and pushes the throttle core 2 to compress the spring 3, so as to move, and separate the outer wall of the throttle core 2 from the inner wall of the circulation chamber, so that when the one-way throttle valve is in the reverse circulation state, the fluid can flow from the outlet to the inlet through the reverse circulation grooves.
In some alternative embodiments, the throttling valve is a one-way throttling valve, and the outer wall of the throttling core 2 is concave to form each reverse flow groove.
In some alternative embodiments, in the above-mentioned one-way throttle valve, the outer wall of the throttle body 2 has a conical projection;
the throttle valve is in:
when in a one-way throttling state, the conical protrusion extends into the outflow port, and the outer wall of the conical protrusion is in sealing contact with the inner wall of the through cavity;
when the circulation is in a reverse state, the outer wall of the conical bulge is separated from the inner wall of the circulation cavity.
For the one-way throttle valve disclosed in the above embodiment, it can be understood by those skilled in the art that the outer wall of the throttle core 2 is designed to have a conical protrusion, when the one-way throttle valve is in a one-way throttling state, the conical protrusion extends into the outlet, the outer wall of the one-way throttle valve is in sealing contact with the inner wall of the through cavity, and the sealing contact effect of the outer wall of the through cavity can be reliably ensured.
In some alternative embodiments, the casing of the one-way throttle valve is formed by two butt-jointing parts, wherein one part is the first casing 5 which is provided with an inflow port; the other part is a second housing 6 having an outflow opening thereon.
In some alternative embodiments, the first housing 5 and the second housing 6 are connected in a threaded fit manner.
In some optional embodiments, the above one-way throttle valve further includes:
the seal ring 7 is provided between the first casing 5 and the second casing 6.
In some alternative embodiments, in the above one-way throttle valve, the first housing 5 has a first safety hole;
the second shell 6 is provided with a second safety hole;
the one-way throttle valve further comprises:
and the fuse 1 is arranged by penetrating the first fuse hole and the second fuse hole.
In some optional embodiments, the above one-way throttle valve further includes:
the plurality of throttle blades 8 have eccentric holes and are arranged in the throttle holes in an axial direction.
In some alternative embodiments, the eccentric holes on the throttle plates 8 are distributed in a staggered manner, i.e. the eccentric holes are not on the same axis.
With respect to the one-way throttle valve disclosed in the above embodiments, it can be understood by those skilled in the art that when the one-way throttle valve is in the one-way throttle state, the fluid flows out from the outflow port through the throttle hole from the inflow port, and flows through the throttle hole from the eccentric holes on the respective throttle plates 8, so that the throttle effect is better.
In some optional embodiments, the above one-way throttle valve further includes:
and a plurality of washers 9 disposed between the respective throttle blades 8 to position the respective throttle blades 8.
With respect to the check throttle valve disclosed in the above embodiment, it will be understood by those skilled in the art that the number of the throttle blades 8 and the angular distribution of the eccentric holes on each throttle blade 8 can be specifically designed according to the fluid flow to be regulated, and the gasket 9 is designed to have a corresponding thickness corresponding to the distance between each throttle blade 8.
In some optional embodiments, the above one-way throttle valve further includes:
one end of the guide sleeve 10 is connected with the throttling core 2, the interior of the guide sleeve is communicated with the throttling hole, and the outer wall of the guide sleeve is provided with a supporting bulge;
one end of the spring 3 facing the throttling core 2 is sleeved on the guide sleeve 10 and is abutted to the support protrusion.
With respect to the one-way throttle valve disclosed in the above embodiments, it will be understood by those skilled in the art that the guide sleeve 10 is provided to ensure that the spring 3 is not twisted when the one-way throttle valve is switched between the one-way throttle state and the reverse flow state.
With respect to the one-way throttle valve disclosed in the above embodiments, it will be understood by those skilled in the art that in the one-way throttle state, the fluid flows in from the inlet, flows to the throttle hole through the inside of the guide sleeve 10, and finally flows out from the outlet.
In some optional embodiments, in the above one-way throttle valve, a plurality of reverse guide grooves are formed between the outer wall of the guide sleeve 10 and the inner wall of the flow-through cavity;
one end of each reverse guide groove extends towards the inflow port, and the other end extends towards the outflow port.
With respect to the one-way throttle valve disclosed in the above embodiments, it will be understood by those skilled in the art that in the reverse flow state, the fluid flows in from the outflow port, flows to each of the reverse guide grooves through the reverse flow channel, and finally flows out from the inflow port.
In some alternative embodiments, the outer wall of the guide sleeve 10 is recessed to form a reverse guide groove.
In some optional embodiments, the above one-way throttle valve further comprises;
and the plurality of screws 4 are connected with the throttling core 2 and the guide sleeve 10.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (9)
1. A one-way throttle valve, comprising:
a casing having a circulation chamber therein, and an inflow port and an outflow port communicating with the circulation chamber;
a throttle core (2) which is arranged in the circulation cavity and is provided with a throttle hole;
the spring (3) is arranged in the circulation cavity, one end of the spring is abutted against the inner wall of the circulation cavity, and the other end of the spring is abutted against the throttling core (2);
the one-way throttle valve has:
in a one-way throttling state, the spring (3) presses the throttling core (2) to enable the outer wall of the throttling core (2) to be in sealing contact with the inner wall of the circulation cavity, and the outlet is communicated with the throttling hole;
in a reverse flow state, the throttling core (2) is stressed to compress the spring (3) to move, the outer wall of the throttling core is separated from the inner wall of the flow cavity, and a reverse flow channel is formed between the throttling core and the inner wall of the flow cavity.
2. The one-way throttle valve of claim 1,
a plurality of reverse circulation grooves are formed between the outer wall of the throttling core (2) and the inner wall of the circulation cavity; one end of each of the reverse flow grooves extends in the direction of the inlet and the other end extends in the direction of the outlet.
3. The one-way throttle valve of claim 1,
the outer wall of the throttling core (2) is provided with a conical bulge;
the throttle valve is in:
when the one-way throttling state is realized, the conical protrusion extends into the outflow port, and the outer wall of the conical protrusion is in sealing contact with the inner wall of the flow cavity;
and in the reverse circulation state, the conical convex outer wall is separated from the inner wall of the circulation cavity.
4. The one-way throttle valve of claim 1,
the shell is formed by butt joint of two parts, wherein one part is a first shell (5) provided with the inflow port; the other part is a second housing (6) having the outflow opening thereon.
5. The one-way throttle valve of claim 1,
further comprising:
a plurality of throttle plates (8) having eccentric holes and arranged in the throttle holes in an axial direction;
the eccentric holes on the throttle plates (8) are distributed in a staggered manner.
6. The one-way throttle valve of claim 5,
further comprising:
a plurality of gaskets (9) which are distributed and arranged among the throttling sheets (8).
7. The one-way throttle valve of claim 1,
further comprising:
one end of the guide sleeve (10) is connected with the throttling core (2), the interior of the guide sleeve is communicated with the throttling hole, and the outer wall of the guide sleeve is provided with a supporting protrusion;
one end, facing the throttling core (2), of the spring (3) is sleeved on the guide sleeve (10) and is abutted to the support protrusion.
8. The one-way throttle valve of claim 7,
a plurality of reverse guide grooves are formed between the outer wall of the guide sleeve (10) and the inner wall of the circulation cavity;
one end of each of the reverse guide grooves extends in the inflow port direction, and the other end extends in the outflow port direction.
9. The one-way throttle valve of claim 7,
also includes;
and the plurality of screws (4) are connected with the throttling core (2) and the guide sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010946880.7A CN112197034A (en) | 2020-09-10 | 2020-09-10 | One-way throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010946880.7A CN112197034A (en) | 2020-09-10 | 2020-09-10 | One-way throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112197034A true CN112197034A (en) | 2021-01-08 |
Family
ID=74015206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010946880.7A Pending CN112197034A (en) | 2020-09-10 | 2020-09-10 | One-way throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112197034A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944547A (en) * | 2021-09-14 | 2022-01-18 | 中国航空工业集团公司沈阳飞机设计研究所 | Oil seal switch and oil supply and return pipeline system of turbine starter of aircraft engine |
| CN116336026A (en) * | 2023-05-29 | 2023-06-27 | 新乡市新华液压机械有限公司 | One-way damping valve for special vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202659993U (en) * | 2012-05-25 | 2013-01-09 | 浙江苏强格液压股份有限公司 | One-way throttling valve |
| CN203614841U (en) * | 2013-10-25 | 2014-05-28 | 宁波明启液压机械有限公司 | One-way throttling valve |
| CN203869389U (en) * | 2014-05-08 | 2014-10-08 | 美的集团股份有限公司 | Short-pipe throttle valve and air conditioner |
| CN105387014A (en) * | 2015-12-07 | 2016-03-09 | 浙江华益精密机械股份有限公司 | High-precision flow distributing and collecting valve |
-
2020
- 2020-09-10 CN CN202010946880.7A patent/CN112197034A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202659993U (en) * | 2012-05-25 | 2013-01-09 | 浙江苏强格液压股份有限公司 | One-way throttling valve |
| CN203614841U (en) * | 2013-10-25 | 2014-05-28 | 宁波明启液压机械有限公司 | One-way throttling valve |
| CN203869389U (en) * | 2014-05-08 | 2014-10-08 | 美的集团股份有限公司 | Short-pipe throttle valve and air conditioner |
| CN105387014A (en) * | 2015-12-07 | 2016-03-09 | 浙江华益精密机械股份有限公司 | High-precision flow distributing and collecting valve |
Non-Patent Citations (1)
| Title |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944547A (en) * | 2021-09-14 | 2022-01-18 | 中国航空工业集团公司沈阳飞机设计研究所 | Oil seal switch and oil supply and return pipeline system of turbine starter of aircraft engine |
| CN116336026A (en) * | 2023-05-29 | 2023-06-27 | 新乡市新华液压机械有限公司 | One-way damping valve for special vehicle |
| CN116336026B (en) * | 2023-05-29 | 2024-05-03 | 新乡市新华液压机械有限公司 | One-way damping valve for special vehicle |
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Inventor after: Xiaoshan Inventor after: Li Zhipeng Inventor after: Li Fu Inventor after: Zhu Lin Inventor after: Wang Huaming Inventor before: Li Zhipeng Inventor before: Li Fu Inventor before: Zhu Lin Inventor before: Wang Huaming |
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Application publication date: 20210108 |
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