CN113898765B - Damping filtering on-off valve - Google Patents
Damping filtering on-off valve Download PDFInfo
- Publication number
- CN113898765B CN113898765B CN202111233814.6A CN202111233814A CN113898765B CN 113898765 B CN113898765 B CN 113898765B CN 202111233814 A CN202111233814 A CN 202111233814A CN 113898765 B CN113898765 B CN 113898765B
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- CN
- China
- Prior art keywords
- valve
- face sealing
- damping
- filter
- shell
- 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.)
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Links
- 238000013016 damping Methods 0.000 title claims abstract description 55
- 238000001914 filtration Methods 0.000 title description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
-
- 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
-
- 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
Abstract
The invention relates to the technical field of damping filter opening and closing valves for water supply of high-pressure plunger pumps, in particular to a damping filter opening and closing valve, which comprises a filter function component, a pulse damper function component and a one-way valve function part component, wherein the filter function component comprises an end face sealing element A, an inlet flange short circuit, a first high-strength bolt, an end face sealing element B, a strong magnetic ring and a bell-shaped filter cover, the end face sealing element A is positioned in a groove of the left flange of the inlet flange short circuit, the pulse damper function component comprises an elastic damping body, a shell, a damping water outlet and an end face sealing element C, the end face sealing element B is positioned in a groove of the right shell flange of the inlet flange short circuit, the whole structure is simple, the one-way valve, the filter and the damping are designed integrally, and the three functions are combined together by a reasonable arrangement structure.
Description
Technical Field
The invention relates to the technical field of a damping filter on-off valve for water supply of a high-pressure plunger pump, in particular to a damping filter on-off valve.
Background
In the existing high-pressure water system supplied by a high-pressure plunger pump, a filtering device is not arranged at the outlet of the high-pressure plunger pump, so that hard particles in high-pressure water have large flushing force on a pipeline, impact on the pipeline is large, abrasion on the inner wall of the pipeline is quick, the pipeline is easy to be flushed and leaked, and the service life of the pipeline is short; the resistance of the high-pressure water passing through the pipeline is high, the pressure drop of the user point when the high-pressure water reaches the tail end is also high, and the water energy loss is high; the hard particles in the water can block the end nozzle, so that the internal pressure of the system is increased, the flow rate and pressure of the jet flow are reduced, the coverage area and the striking force of the jet flow when reaching a workpiece are changed, the preset treatment purpose cannot be achieved, and the treatment fails. 2. The disadvantage of the existing damper is that in a high-pressure water system supplied with water by a high-pressure plunger pump, according to the working principle of the plunger pump, when the high-pressure water plunger pump outputs high-pressure water, continuous low-frequency high-pressure pulses are generated, so that the outlet pressure fluctuates within a certain range, the pipeline is impacted by unstable pressure, the operation of stabilizing the output pressure cannot be completed, and the damper for buffering the pulses is generally arranged in the system requiring stable pressure. Common dampers are bellows-type, compressed air-type accumulators, wherein the bellows-type accumulator has the disadvantage that: each pump needs to be provided with a plurality of groups of energy storage dampers, so that the cost is high; the leather bag has short service life and needs to be replaced frequently; compressed air accumulator disadvantages: the wall thickness of the tank body material is thick, the manufacturing process is complex, the tank body material belongs to a pressure container with high pressure grade, the admittance condition is high, and the manufacturing cost is high; the volume is large, and the occupied area is large; the system has potential safety hazards, meanwhile, the damper is independently arranged in the system, the occupied pump station space is large, the use cost is high, the daily maintenance work is large, the pressure vessel needs to be checked and replaced regularly, and the potential safety hazards exist.
Therefore, there is a need for a damped filter on-off valve that ameliorates the above-described problems.
Disclosure of Invention
The present invention is directed to a damping filter on-off valve to solve the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a damping filters opening and closing valve, includes filtration function subassembly, pulse damper function subassembly and check valve function part subassembly, filtration function subassembly includes terminal surface sealing member A, entry flange short circuit, first high strength bolt, terminal surface sealing member B, strong magnetic ring, bell filter housing, terminal surface sealing member A is located the slot of entry flange short circuit left side flange, pulse damper function subassembly includes elastic damping body, shell, damping delivery port, terminal surface sealing member C, terminal surface sealing member B is located the slot of entry flange short circuit right side shell flange, the inside of shell is equipped with the elastic damping body, the inside right side embedding of elastic damping body is installed the damping delivery port, install the strong magnetic ring between the right side of the left side of bell filter housing and pressing close to the entry flange short circuit, terminal surface sealing member C is located the slot of shell right side flange, the check valve function part subassembly includes disk seat, interior hexagonal bolt, terminal surface sealing member D, second high strength bolt, case, spring, terminal surface, pressure vessel E are located the slot of entry flange, the inside of valve body is equipped with the valve body, seal E is equipped with the valve body, seal D is equipped with the inside of valve body, seal E is equipped with the valve body, seal D is equipped with the inside the valve body.
In a preferred scheme of the invention, the inlet flange short circuit is arranged on the left side of the shell through a first high-strength bolt, and the valve body is arranged on the right side of the shell through a second high-strength bolt.
As a preferable scheme of the invention, a plurality of groups of small holes are formed on the periphery of the bell-shaped filter cover, wherein the diameter of the small holes is smaller than that of nozzle small holes in a high-pressure water system which is supplied with water by a high-pressure multi-plunger pump and outputs high-pressure water jet through the pipe system and the small holes of the nozzle.
As a preferable embodiment of the present invention, the elastic damping body is a polyurethane elastomer.
As a preferable scheme of the invention, the right side of the damping water outlet is provided with a cavity.
As a preferable scheme of the invention, one side of the valve core is tightly attached to the valve seat by pushing the spring.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the elastic damping body embedded damping water outlet of the polyurethane elastomer is used as a damping element for vibration isolation and absorption, compared with a traditional tank high-pressure container type damper, the high-pressure container type damper has the characteristics of simple structure, small occupied space and low cost, meanwhile, the damper belongs to high-pressure pipe fitting equipment instead of pressure capacity, the user cost is reduced, the potential safety hazard is reduced, and the high-pressure container type damper is very suitable for a high-pressure environment through the strong magnetic ring and the bell-shaped filter screen arranged on the side, close to the inlet flange, of the elastic damping body.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
In the figure: 1. an end face seal a; 2. the inlet flange is short-circuited; 3. a first high strength bolt; 4. an end face seal B; 5. a strong magnetic ring; 6. a bell-shaped filter housing; 7. an elastic damping body; 8. a housing; 9. damping water outlet; 10. an end face seal C; 11. a valve seat; 12. an inner hexagonal bolt; 13. an end face seal D; 14. a second high strength bolt; 15. a valve core; 16. a spring; 17. a valve body; 18. a pressure transmitter; 19. an end face seal E; 20. a filter function assembly; 21. a pulse damper functional assembly; 22. a check valve functional part assembly.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Several embodiments of the invention are presented. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present invention provides a technical solution:
a damping filter on-off valve comprises a filter function component 20, a pulse damper function component 21 and a one-way valve function part component 22, wherein the filter function component 20 comprises an end face seal A1, an inlet flange short circuit 2, a first high-strength bolt 3, an end face seal B4, a strong magnetic ring 5 and a bell-shaped filter cover 6, the end face seal A1 is positioned in a groove of a left side flange of the inlet flange short circuit 2, the pulse damper function component 21 comprises an elastic damper 7, a shell 8, a damping water outlet 9 and an end face seal C10, the end face seal B4 is positioned in a groove of a right side shell 8 of the inlet flange short circuit 2, the elastic damper 7 is arranged in the shell 8, the damping water outlet 9 is embedded and arranged on the right side of the interior of the elastic damper 7, the bell-shaped filter cover 6 is embedded and arranged on the left side of the elastic damper 7, the strong magnetic ring 5 is arranged between the left side of the bell-shaped filter cover 6 and the right side of the adjacent to the inlet flange short circuit 2, the end face sealing element C10 is positioned in a groove of a flange on the right side of the shell 8, the one-way valve functional part assembly 22 comprises a valve seat 11, an inner hexagonal bolt 12, an end face sealing element D13, a second high-strength bolt 14, a valve core 15, a spring 16, a valve body 17, a pressure transmitter 18 and an end face sealing element E19, the valve seat 11 is arranged on the left side of the valve body 17 through the inner hexagonal bolt 12, the end face sealing element D13 is clamped between the right side of the valve seat 11 and the inner wall of the valve body 17, the valve core 15 is arranged in the valve body 17, the spring 16 is arranged in the valve body 17 and positioned on the right side of the valve core 15, the pressure transmitter 18 is arranged on the top of the valve body 17, the end face sealing element E19 is positioned in the groove of the flange on the right side of the inlet valve body 17, the whole structure is simple, the one-way valve and the filter and damping integrated design is realized, the three functions are combined together through reasonable arrangement structure, the integrated structure has the characteristics of independent structure integration function, reduces the space, reduces the cost, has higher stability and practicability, and has certain popularization value.
Referring to fig. 1, an inlet flange short 2 is mounted on the left side of a housing 8 through a first high-strength bolt 3, a valve body 17 is mounted on the right side of the housing 8 through a second high-strength bolt 14, and the inlet flange short 2, the housing 8 and the valve body 17 are easily disassembled/assembled through the first high-strength bolt 3 and the second high-strength bolt 14.
In the embodiment, referring to fig. 1, a plurality of groups of small holes are formed on the periphery of the bell-shaped filter cover 6, wherein the diameter of the small holes is smaller than that of the nozzle small holes in a high-pressure water system which is supplied with water by a high-pressure multi-plunger pump and outputs high-pressure water jet through the pipe system and the small holes of the nozzle; the right side of the damping water outlet 9 is provided with a cavity; the elastic damping body 7 adopts polyurethane elastomer; iron particles in water are adsorbed through the strong magnetic ring 5 close to the inlet, so that further forward movement of the iron particles is avoided; the bell-shaped filter cover 6 is fully provided with small holes, the diameters of the small holes are smaller than those of the small holes of the nozzle, impurities in water can be comprehensively filtered, particles larger than the caliber of the nozzle are guaranteed to be remained in the filter screen and cannot pass through the filter screen, the nozzle cannot be blocked, the bell-shaped filter cover 6 is embedded in the elastic damping body 7, when high-pressure water pulse impacts the filter screen, the elastic damping body 7 plays a damping role at the same time, and the amplitude of a part of high-pressure pulse is weakened for use
In the embodiment, referring to fig. 1, one side of the valve core 15 is pushed by the spring 16 to be tightly attached to the valve seat 11, the valve core 15 is pushed by the spring 16 on one side of the valve core 15 to be tightly attached to the valve seat 11, and different opening pressures can be controlled by adopting springs 16 with different forces, so that the function of unidirectional opening and reverse interception is realized, the function of high-pressure water beaten by the pump head flows along one direction, the damage to equipment caused by reverse flow is avoided, and the high-pressure water with stable pressure is always output in the forward direction.
Working principle: when the filter is used, the filter function component 21 comprises an end face sealing element A1, an inlet flange short circuit 2, a first high-strength bolt 3, an end face sealing element B4, a strong magnetic ring 5 and a bell-shaped filter cover 6, and the end face sealing element A1 is positioned in a groove of a flange at the left side of the inlet flange short circuit 2 and is used for connecting and sealing a pipeline; the end face sealing piece B4 is positioned in a flange groove which is close to the shell 8 and is positioned on the right side of the inlet flange short circuit 2 and is used for connecting and sealing with the flange of the shell 8; the strong magnetic ring 5 at the inlet adsorbs iron particles in the water, so that the iron particles are prevented from moving forward further; the bell-shaped filter cover 6 is fully provided with small holes, the diameters of the small holes are smaller than those of the small holes of the nozzles, impurities in water can be comprehensively filtered, particles larger than the caliber of the nozzles are guaranteed to be left in a filter screen and cannot pass through the filter screen, the nozzles are guaranteed not to be blocked, the bell-shaped filter cover 6 is embedded in the elastic damping body 7, when high-pressure water pulse impacts the filter screen, the elastic damping body 7 plays a damping role at the same time, the amplitude of a part of high-pressure pulse is weakened, the pulse damper functional assembly 21 comprises the elastic damping body 7, a shell 8, a damping opening 9 and an end face sealing piece C10, filtered water flows out after entering the damping water outlet 9, the damping water outlet 9 is integrally embedded in the rear section of the elastic damping body 7, the cavity of the damping water outlet 9 is specially designed, the frequency of the high-pressure water pulse is 25-35HZ, the peak value is 10% -15% of the set pressure of the system output, the high-pressure water pulse is buffered by the polyurethane elastomer when passing through the damping port pulse, about 90 percent of peak value is eliminated, the high-pressure water flows out after forming laminar flow at the same time, the vibration isolation and pressure stabilization effects can be realized, the high-pressure water pressure fluctuation after damping is less than 1.5 percent, the use requirement is met, and the single-check valve functional part assembly 22 comprises a valve seat 11, an inner hexagonal bolt 12, an end face sealing piece D13, a second high-strength bolt 14, a valve core 15, a spring 16, a valve body 17, a pressure transmitter 18 and an end face sealing piece E19, the valve seat 11 is made of wear-resistant materials, the valve core 15 and the valve seat 11 are tightly adhered by the spring 16 at one side of the valve core 15, different opening pressures can be controlled by adopting springs 16 with different forces, the functions of unidirectional opening and reverse interception are realized, the high-pressure water function that like this pump head beaten flows along a direction, has avoided the harm that the backward flow caused to equipment, is the high-pressure water of forward output steady pressure forever, and overall structure is simple, realizes check valve and filtration and damping integral type design, and reasonable arrangement structure combines three functions together, has the independent characteristics of structure integrated function, has reduced the space, and cost and stability and practicality are higher, have certain spreading value.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A damping filter opening and closing valve comprises a filter function component (20), a pulse damper function component (21) and a one-way valve function part component (22), and is characterized in that the filter function component (20) comprises an end face sealing piece A (1), an inlet flange short circuit (2), a first high-strength bolt (3), an end face sealing piece B (4), a strong magnetic ring (5) and a bell-shaped filter cover (6), the end face sealing piece A (1) is positioned in a groove of a left flange of the inlet flange short circuit (2), the pulse damper function component (21) comprises an elastic damping body (7), a shell (8), a damping water outlet (9) and an end face sealing piece C (10), the end face sealing piece B (4) is positioned in a groove of a right shell (8) of the inlet flange short circuit (2), an elastic damping body (7) is arranged in the shell (8), a damping water outlet (9) is embedded and mounted on the right side of the inside of the elastic damping body (7), a bell-shaped filter cover (6) is embedded and mounted on the left side of the elastic damping body (7), the bell-shaped filter cover (6) is mounted on the right side of the shell, the right side of the damping body (7) and is positioned between the right shell (8) and the right shell (8), the check valve functional part assembly (22) comprises a valve seat (11), an inner hexagonal bolt (12), an end face sealing piece D (13), a second high-strength bolt (14), a valve core (15), a spring (16), a valve body (17), a pressure transmitter (18) and an end face sealing piece E (19), wherein the valve seat (11) is arranged on the left side of the valve body (17) through the inner hexagonal bolt (12), the end face sealing piece D (13) is clamped between the right side of the valve seat (11) and the inner wall of the valve body (17), the valve core (15) is arranged inside the valve body (17), the spring (16) is arranged inside the valve body (17) and positioned on the right side of the valve core (15), the pressure transmitter (18) is arranged at the top of the valve body (17), and the end face sealing piece E (19) is positioned in a groove of a flange on the right side of the inlet valve body (17).
2. The damper filter on-off valve according to claim 1, wherein: the inlet flange short circuit (2) is mounted on the left side of the shell (8) through a first high-strength bolt (3), and the right side of the shell (8) is provided with a valve body (17) through a second high-strength bolt (14).
3. The damper filter on-off valve according to claim 1, wherein: and a plurality of groups of small holes are formed in the periphery of the bell-shaped filter cover (6), wherein the diameter of each small hole is smaller than that of a nozzle small hole in a high-pressure water system which is supplied with water by a high-pressure multi-plunger pump and outputs high-pressure water jet through a pipe system and the small holes of the nozzle.
4. The damper filter on-off valve according to claim 1, wherein: the elastic damping body (7) adopts polyurethane elastomer.
5. The damper filter on-off valve according to claim 1, wherein: and a cavity is formed on the right side of the damping water outlet (9).
6. The damper filter on-off valve according to claim 1, wherein: one side of the valve core (15) is tightly attached to the valve seat (11) by pushing of a spring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111233814.6A CN113898765B (en) | 2021-10-22 | 2021-10-22 | Damping filtering on-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111233814.6A CN113898765B (en) | 2021-10-22 | 2021-10-22 | Damping filtering on-off valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113898765A CN113898765A (en) | 2022-01-07 |
| CN113898765B true CN113898765B (en) | 2024-03-19 |
Family
ID=79025986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111233814.6A Active CN113898765B (en) | 2021-10-22 | 2021-10-22 | Damping filtering on-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113898765B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708159A (en) * | 1986-04-16 | 1987-11-24 | Nea Technologies, Inc. | Pulse combustion energy system |
| CN105508674A (en) * | 2016-02-24 | 2016-04-20 | 湖北仁创科技有限公司 | Slide damping type water hydraulic overflow valve for high-pressure and high-flow systems |
-
2021
- 2021-10-22 CN CN202111233814.6A patent/CN113898765B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708159A (en) * | 1986-04-16 | 1987-11-24 | Nea Technologies, Inc. | Pulse combustion energy system |
| CN105508674A (en) * | 2016-02-24 | 2016-04-20 | 湖北仁创科技有限公司 | Slide damping type water hydraulic overflow valve for high-pressure and high-flow systems |
Non-Patent Citations (1)
| Title |
|---|
| 一种液压阻尼器的结构及阻尼性能分析;蔡文军;王平;祝远征;陈国明;;机床与液压;20060628(第06期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113898765A (en) | 2022-01-07 |
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