CN110425311A - A kind of high pressure multiple-way valve - Google Patents
A kind of high pressure multiple-way valve Download PDFInfo
- Publication number
- CN110425311A CN110425311A CN201910716863.1A CN201910716863A CN110425311A CN 110425311 A CN110425311 A CN 110425311A CN 201910716863 A CN201910716863 A CN 201910716863A CN 110425311 A CN110425311 A CN 110425311A
- Authority
- CN
- China
- Prior art keywords
- way valve
- center
- high pressure
- separate valves
- rotation
- 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.)
- Granted
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Classifications
-
- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
- F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
- F16K11/163—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns
-
- 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
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
Abstract
The invention belongs to valve class technical fields, more particularly to a kind of high pressure multiple-way valve, including being equipped with outer gear ring on the outside of center sun gear, the center sun gear, multiple planetary gears are equipped between the center sun gear and outer gear ring, the planetary gear center of rotation is fixedly and coaxially connected separate valves center of rotation；Separate valves center of rotation is fixedly and coaxially connected by planetary gear center of rotation, multiple planetary gear positions are fixed, center sun gear or outer gear ring are driven by required function, open and close the port of each separate valves as required, required pipeline is connected, realize required function orderly function, can fast and easy realize pipeline switching, make multiple-way valve have high voltage performance.
Description
Technical field
The invention belongs to valve technology fields, and in particular to a kind of high pressure multiple-way valve.
Background technique
The control of highly pressurised liquid is a kind of basic technology, be related to petrochemical industry, engineering machinery, food industry, chemical,
Many science and technology fields such as nuclear technology, aerospace.
High pressure multiple-way valve generallys use integrated design, rotor and stator relative motion, realizes flow path switching.Such as
Serial two six-way valves in the 7100 of Rheodyne.Spool is using materials such as stainless steel, ceramics, PEEK.And single two-port valve, three
Port valve etc., the opposite labyrinth with multiple-way valve, since valve body structure is simple, usually pressure resistance is significantly larger than multiple-way valve.
The control of especially micro highly pressurised liquid, the requirement to valve is higher, needs to be resistant to high pressure even super-pressure, when switching
Between it is short, low-residual etc. be influence selector valve a factor, cause the product that can choose few, be unable to reach the mesh of high pressure multi-pass
's.
Summary of the invention
The object of the present invention is to provide a kind of high pressure multiple-way valves, solve in the prior art, due to multi-way valve structure
The problems such as complexity, high pressure resistant intensity is weak, and switching time is long, high residue.
The technical scheme adopted by the invention is that a kind of high pressure multiple-way valve, including center sun gear, the center sun gear
Outside is equipped with outer gear ring, and multiple planetary gears, the planetary gear rotation are equipped between the center sun gear and outer gear ring
Axle center is fixedly and coaxially connected separate valves center of rotation.
It is fixedly and coaxially connected separate valves center of rotation by planetary gear center of rotation, planetary gear rotation drives only
Vertical valve center of rotation rotation, opens and closes the port of each separate valves as required, required pipeline is connected, realizes required function
Orderly function, can fast and easy realize pipeline switching, make multiple-way valve have high voltage performance.
The features of the present invention also characterized in that:
Preferably, planetary gear center of rotation passes through the fixed position of fixed device, and driving wheel is for center sun gear or outside
Gear ring.
By the fixed planetary gear position of fixed device, center sun gear or outer gear ring are driven, planetary gear rotation is made
Shaft core driving separate valves center of rotation carries out stable rotation.
Preferably, separate valves port position is fixed, and is connect with pipeline.
Separate valves port position is fixed, and switches over separate valves more stably to conduits.
Preferably, each pipeline uses high pressure resistant pipeline.
Since multiple-way valve of the present invention will realize high pressure resistant function, while pipeline will also use high pressure resistant pipeline, just can be achieved
The high pressure resistant purpose of high pressure multiple-way valve of the present invention.
Preferably, separate valves are high voltage structures valve.
In order to realize that the high pressure resistant purpose of multiple-way valve, separate valves select high voltage structures valve.
Preferably, separate valves are the of the same race of two-way valve, triple valve or multiple-way valve or any several combinations.
The use occasion of multiple-way valve according to the present invention, in order to realize different purposes, then can be selected two-way valve, triple valve or
Several combinations of the same race or any of multiple-way valve.
Preferably, separate valves are equipped with stop position.
Stop position is the switching in order to more accurately realize conduits.
Beneficial effects of the present invention:
A kind of high pressure multiple-way valve of the present invention, is fixedly and coaxially connected separate valves rotation axis by planetary gear center of rotation
The heart, multiple planetary gear positions are fixed, and drive center sun gear or outer gear ring by required function, make the port of each separate valves by
It is required that being opened and closed, required pipeline is connected, realizes the orderly function of required function, can fast and easy realize pipeline switching,
Have the performance of high pressure resistance multiple-way valve.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of high pressure multiple-way valve of the present invention；
Fig. 2 is a kind of dress target control schematic diagram of high pressure multiple-way valve embodiment one of the present invention；
Fig. 3 unloads target control schematic diagram for a kind of high pressure multiple-way valve embodiment one of the present invention；
Fig. 4 is a kind of dress sample process schematic of high pressure multiple-way valve embodiment two of the present invention；
Fig. 5 is a kind of sample introduction process schematic of high pressure multiple-way valve embodiment two of the present invention.
In figure: the center 1- sun gear, 2- outer gear ring, 3- planetary gear, 4- separate valves, the fixed device of 5-；
The first ball valve of 101-；The second ball valve of 102-；103- third ball valve；The 4th ball valve of 104-；105-0.6MPa helium gas source；
The first check valve of 106-；107- target chamber；108- target material；109- two position three-way valve；The first syringe of 110-；111-0.2MPa helium
Source；112- second one-way valve；113- synthesis module；
The 5th ball valve of 201-；The 6th ball valve of 202-；The 7th ball valve of 203-；The 8th ball valve of 204-；The second syringe of 205-；
206- sampling ring；207- waste liquid bottle；208- chromatographic column；209- pump.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The present invention is a kind of high pressure multiple-way valve, and structural schematic diagram is as shown in Figure 1, include center sun gear 1, center sun gear
1 outside is equipped with outer gear ring 2, and multiple planetary gears 3, the rotation axis of planetary gear 3 are equipped between center sun gear 1 and outer gear ring 2
The heart is fixedly and coaxially connected 4 center of rotation of separate valves, each 4 entrance of separate valves connection composition high pressure multiple-way valve.
Center sun gear 1 or outer gear ring 2 are driven by required function, opens and closes the port of each separate valves 4 as required,
Required pipeline is connected, realizes the orderly function of required function, can fast and easy realize pipeline switching, make multiple-way valve have it is resistance to
High-voltage performance.
The driving wheel of planetary gear 3 is center sun gear 1 or outer gear ring 2；Driving power source can be stepper motor, servo electricity
Driving center sun gear 1 or outer gear ring 2 can be achieved manually etc. in machine, air motor, rotary cylinder.
Planetary gear 3 is 2 or 2 composition described above, and planetary gear passes through the fixed position of fixed device 5, the fixation device 5
It can be planet carrier, fix the position of planetary gear 3.The center of rotation of planetary gear 3 is fixedly and coaxially connected the rotation of separate valves 4
Axle center realizes the position of fixed separate valves 4, keeps the rotation of separate valves 4 synchronous with the rotation of planetary gear 3.The port of separate valves 4
Position is fixed, and is connect with pipeline.By driving center sun gear 1 or outer gear ring 2, rotate planetary gear 3, to drive only
The center of rotation rotation of vertical valve 4, realizes the connection direction for adjusting the conduits of separate valves 4, is required according to required function, in turn
Can fast and easy realize pipeline switching, make multiple-way valve have high voltage performance.
Separate valves 4 are high voltage structures valve, since the sealing performance of separate valves 4 is high, and each pipe being connect with 4 port of separate valves
Road also uses pressure piping, to make to realize high-voltage performance by multiple-way valve composed by multiple separate valves 4.According to required function
The requirement of energy, separate valves 4 can be set to the of the same race of two-way valve, triple valve or multiple-way valve or any several combination, keep high pressure more
Port valve being capable of flexible setting as needed.The settable stop position of separate valves 4, stop position are used to determine the center of rotation of separate valves 4
Whether rotate to target position, to realize the accurate switching of multiple-way valve pipeline.
Embodiment one
Embodiment is first is that the control that the present invention fills target for cyclotron liquid target, practices shooting and unload target.
High pressure multiple-way valve is made of four separate valves 4, and separate valves 4 select 3-position-3-way ball valve.The present embodiment one is used for back
Rotation accelerator liquid target dress target, the control practicing shooting and unload target process, dress target control schematic diagram is as shown in Fig. 2, four three three
The port of pass ball valve is a, b and c, four ball valves at 0 degree of position of valve, at this time the first ball valve 101, the second ball valve 102,
Third ball valve 103 is that a, c are connected to the port of the 4th ball valve 104, and 0.6MPa helium gas source 105 passes through 106 He of the first check valve
The port ac of first ball valve 101 enters in target chamber 107, by two three behind the port ca that 0.6MPa helium passes through the second ball valve 102
Port valve 109 is ended, and 107 internal pressure power of target chamber remains 0.6MPa；Meanwhile 0.2MPa helium gas source 111 passes through the ca of the 4th ball valve 104
The port ac of port, third ball valve 103 enters in synthesis module 13, for drying up the end c of third ball valve 103 to synthesis module 13
Pipeline, and test the patency of this segment pipe.
Piston moves downward for first syringe 110, and the liquid in target material 108 enters the first note by two position three-way valve 109
In the syringe of emitter 110,110 piston upwards of the first syringe, the liquid in syringe returns to target by two position three-way valve 109
In material 108.It is primary to repeat above step, bubble that may be present in discharge line.
Piston moves downward for first syringe 110, and the liquid 3ml in target material 108 enters first by two position three-way valve 109
In the syringe of syringe 110.
Two position three-way valve 109 is powered, 110 piston upwards of the first syringe, and the liquid 3ml of syringe passes through two-position three way
Valve 109 enters in target chamber 107.Original pressure 0.6MPa in target chamber 107, after injecting 3ml liquid, gas is compressed, pressure rise
To 1.3-1.5MPa, the indoor pressure of target is greater than the pressure of 0.6MPa helium gas source 105, and the cut-off of the first check valve 106 prevents target chamber
Pressure reversal in 107 enters the pipeline of 0.6MPa helium gas source 105.
Stepper motor drives center sun gear 1 to rotate clockwise, and driving planetary gear 3 rotates counterclockwise 90 degree, at this point, the
Also 90 degree of the rotation simultaneously of one ball valve 101, the second ball valve 102, third ball valve 103 and the 4th ball valve 104, is in stop position, each
The outlet a, b, c of valve is disconnected with each other；Two position three-way valve 9 powers off, and dress target is completed.
After the completion of the above dress target process, target chamber internal pressure power is maintained at 1.3-1.5MPa.First ball valve 101, the second ball valve
102, third ball valve 103 and the 4th ball valve 104 are in stop position, this position is target practice position, when line is irradiated to target chamber 107
When, fluid pressure changes in target, and line is bigger, and the pressure in target chamber 107 is bigger, and maximum can reach 3.0MPa.
The present embodiment one unloads target control schematic diagram as shown in figure 3, stepper motor drives center sun gear 1 to turn clockwise
Dynamic, driving planetary gear 3 rotates counterclockwise to the first ball valve 101, the second ball valve 102, third ball valve 103 and the 4th ball valve 104
180 degree position, at this point, the first ball valve 101, the second ball valve 102, third ball valve 103 and the 4th ball valve 104 b, c export and connect
It is logical.
Liquid in target chamber 107 passes through the port cb of the second ball valve 102, and the port bc of third ball valve 103 enters synthesis mould
In block 113.Pressure in target chamber 107 port cb through the first ball valve 101 simultaneously, the port bc of the 4th ball valve 104 are conducted to the
Two check valves 112 end second one-way valve 112, prevent gas from entering 111 pipeline of 0.2MPa helium gas source.
Fluid pressure in target chamber 107 constantly reduces, and when being less than 0.2MPa, second one-way valve 112 is opened, 0.2MPa helium
Gas in source 111 passes through the end cb of the 4th ball valve 104, and the end bc of the first ball valve 101 leads to the residual liquid in target chamber 107
The port cb of the second ball valve 102 is crossed, the port bc of third ball valve 103 enters in synthesis module 113.
After liquid is completely into synthesis module 113 in target chamber 107, stepper motor drives center sun gear 1 to rotate counterclockwise,
Driving planetary gear 3 returns to 0 degree clockwise, waits dress target next time.
Embodiment two
Embodiment is second is that control of the present invention for HPLC dress sample and sample introduction.
High pressure multiple-way valve is made of four separate valves 4, and separate valves 4 select two-position three way ball valve.
The present embodiment two fills sample process schematic as shown in figure 4, the port of four two-position three way ball valves is a, b and c, and four
A ball valve is at 0 degree of position of valve, the 5th ball valve 201, the 6th ball valve 202, the 7th ball valve 203 and the 8th ball valve 204 at this time
Port be a, c connection, the sample in the second syringe 205 enters acquisition ring 206 by the end ac of the 5th ball valve 201, passes through
The end ca of 6th ball valve 202, sample fill up sampling ring 206, and extra sample enters waste liquid bottle 207；Meanwhile pump 209 will flowing
Mutually pass through the end ca of the 7th ball valve 203, the end ac of the 8th ball valve 204 is rinsed chromatographic column 208, balance by chromatographic column 208.
This process is dress sample process.
Two sample introduction process schematic of the present embodiment as shown in figure 5, stepper motor drive center sun gear 1 rotate clockwise,
Driving planetary gear 3 rotates counterclockwise 180 degree, at this point, the 5th ball valve 201, the 6th ball valve 202, the 7th ball valve 203 and the 8th ball
The port bc of valve 204 is connected to.Mobile phase is passed through the end cb of the 7th ball valve 203, the end bc of the 6th ball valve 202, by adopting by pump 209
Sample in sampling ring 206 is carry the end cb by the 5th ball valve 201 by sample ring 206, and the end bc of the 8th ball valve 204 passes through
Chromatographic column 208.This process is sample introduction process.
The course of work: first according to the work to be carried out of high pressure multiple-way valve, the quantity of planetary gear 3 is selected, and will be gone
Star gear 3 is placed between center sun gear 1 and outer gear ring 2, and planetary gear 3 is fixed on fixed device 5.Secondly basis
It is required that the quantity and type of selection separate valves 4, the center of rotation of separate valves 4 and the center of rotation of planetary gear 3 are coaxially fixed
Connection.Each pipeline finally is connected according to necessary requirement separate valves 4, and pipeline uses high pressure resistant pipeline, further according to requiring to install each institute
Component is needed, installation is completed.
When that need to be worked, the center of rotation of power source drive center sun gear 1 or outer gear ring 2, planetary gear 3 turns
It is dynamic, the center of rotation rotation of separate valves 4 is driven, realizes the switching of 4 conduits of separate valves, thus the switching of pipeline needed for realizing
It is required that.
In conclusion a kind of high pressure multiple-way valve of the present invention, solves in the prior art, it is resistance to due to multi-way valve structure complexity
The problems such as high voltage intensity is weak, and switching time is long, high residue is fixedly and coaxially connected separate valves by planetary gear center of rotation and turns
The moving axis heart, multiple planetary gear positions are fixed, and are driven center sun gear or outer gear ring by required function, are made the end of each separate valves
Mouthful opened and closed as required, required pipeline connected, realizes the orderly function of required function, can fast and easy realize cutting for pipeline
It changes, makes multiple-way valve that there is high voltage performance.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of high pressure multiple-way valve, it is characterised in that: outer including being equipped on the outside of center sun gear (1), the center sun gear (1)
Gear ring (2) is equipped with multiple planetary gears (3) between the center sun gear (1) and outer gear ring (2), the planetary gear (3)
Center of rotation is fixedly and coaxially connected separate valves (4) center of rotation.
2. high pressure multiple-way valve according to claim 1, it is characterised in that: the center of rotation of the planetary gear (3) passes through
Fixed device (5) fixed position, driving wheel are center sun gear (1) or outer gear ring (2).
3. high pressure multiple-way valve according to claim 2, it is characterised in that: separate valves (4) port position is fixed, and with
Pipeline connection.
4. high pressure multiple-way valve according to claim 3, it is characterised in that: each pipeline uses high pressure resistant pipeline.
5. high pressure multiple-way valve according to claim 1, it is characterised in that: the separate valves (4) are high voltage structures valve.
6. high pressure multiple-way valve according to claim 5, it is characterised in that: the separate valves (4) be two-way valve, triple valve or
Several combinations of the same race or any of multiple-way valve.
7. high pressure multiple-way valve according to claim 5, it is characterised in that: the separate valves (4) are equipped with stop position.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716863.1A CN110425311B (en) | 2019-08-05 | 2019-08-05 | High-pressure multi-way valve |
| PCT/CN2020/107019 WO2021023205A1 (en) | 2019-08-05 | 2020-08-05 | High-pressure multi-way valve |
| ZA2022/04142A ZA202204142B (en) | 2019-08-05 | 2022-04-12 | High-pressure multi-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910716863.1A CN110425311B (en) | 2019-08-05 | 2019-08-05 | High-pressure multi-way valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110425311A true CN110425311A (en) | 2019-11-08 |
| CN110425311B CN110425311B (en) | 2022-07-29 |
Family
ID=68414203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910716863.1A Active CN110425311B (en) | 2019-08-05 | 2019-08-05 | High-pressure multi-way valve |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110425311B (en) |
| WO (1) | WO2021023205A1 (en) |
| ZA (1) | ZA202204142B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021023205A1 (en) * | 2019-08-05 | 2021-02-11 | 陕西正泽生物技术有限公司 | High-pressure multi-way valve |
| CN116220611A (en) * | 2023-02-06 | 2023-06-06 | 江苏苏盐阀门机械有限公司 | Corrosion-proof oil well valve |
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| JPH0634058A (en) * | 1992-07-10 | 1994-02-08 | Ebara Corp | Opening and closing valve |
| ES1045525U (en) * | 2000-02-25 | 2000-09-01 | Tipsa Contra Incendios S L | Demultiplexer mechanism for opening and assisted closing of valves and the like. (Machine-translation by Google Translate, not legally binding) |
| CN101349361A (en) * | 2008-09-04 | 2009-01-21 | 天津渤海高科科技有限公司 | Multi-channel switch five-way valve |
| CN201896969U (en) * | 2010-12-22 | 2011-07-13 | 蒋友荣 | Multi-ball-valve single-knob linkage control valve for refrigerant recovering machine |
| CN102364180A (en) * | 2011-09-22 | 2012-02-29 | 宜宾机电一体化研究所 | Centralized control device for switching of fluid channel |
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| CN106015711A (en) * | 2016-08-08 | 2016-10-12 | 崔永青 | High-torque valve driving device and control system employing same |
| CN106837544A (en) * | 2017-01-24 | 2017-06-13 | 顾永强 | Planetary gear engine with revolving cylinders |
| CN108386592A (en) * | 2017-02-03 | 2018-08-10 | 阿自倍尔株式会社 | Operator |
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| CN201836500U (en) * | 2010-09-17 | 2011-05-18 | 山野电机工业股份有限公司 | Electric driving device for valve |
| CN108591590A (en) * | 2018-06-11 | 2018-09-28 | 天津隆志阀门有限公司 | A kind of planetary gear mechanism valve actuator |
| CN110425311B (en) * | 2019-08-05 | 2022-07-29 | 陕西正泽生物技术有限公司 | High-pressure multi-way valve |
-
2019
- 2019-08-05 CN CN201910716863.1A patent/CN110425311B/en active Active
-
2020
- 2020-08-05 WO PCT/CN2020/107019 patent/WO2021023205A1/en active Application Filing
-
2022
- 2022-04-12 ZA ZA2022/04142A patent/ZA202204142B/en unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3820855A1 (en) * | 1988-02-12 | 1989-08-24 | Sol Spa | Actuating device for mixer batteries for cold and hot water |
| JPH0634058A (en) * | 1992-07-10 | 1994-02-08 | Ebara Corp | Opening and closing valve |
| ES1045525U (en) * | 2000-02-25 | 2000-09-01 | Tipsa Contra Incendios S L | Demultiplexer mechanism for opening and assisted closing of valves and the like. (Machine-translation by Google Translate, not legally binding) |
| CN101349361A (en) * | 2008-09-04 | 2009-01-21 | 天津渤海高科科技有限公司 | Multi-channel switch five-way valve |
| CN201896969U (en) * | 2010-12-22 | 2011-07-13 | 蒋友荣 | Multi-ball-valve single-knob linkage control valve for refrigerant recovering machine |
| CN102364180A (en) * | 2011-09-22 | 2012-02-29 | 宜宾机电一体化研究所 | Centralized control device for switching of fluid channel |
| CN202418853U (en) * | 2012-01-04 | 2012-09-05 | 上海凯研机械设备有限公司 | Torque booster for remote transmission |
| CN102661434A (en) * | 2012-05-02 | 2012-09-12 | 龙口市海丰环境科技工程有限公司 | Device for controlling multi-valve core linkage of multi-channel water treatment valve |
| CN203622167U (en) * | 2013-12-13 | 2014-06-04 | 济南玫德铸造有限公司 | Valve plate grinding miller |
| CN106015711A (en) * | 2016-08-08 | 2016-10-12 | 崔永青 | High-torque valve driving device and control system employing same |
| CN106837544A (en) * | 2017-01-24 | 2017-06-13 | 顾永强 | Planetary gear engine with revolving cylinders |
| CN108386592A (en) * | 2017-02-03 | 2018-08-10 | 阿自倍尔株式会社 | Operator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021023205A1 (en) * | 2019-08-05 | 2021-02-11 | 陕西正泽生物技术有限公司 | High-pressure multi-way valve |
| CN116220611A (en) * | 2023-02-06 | 2023-06-06 | 江苏苏盐阀门机械有限公司 | Corrosion-proof oil well valve |
| CN116220611B (en) * | 2023-02-06 | 2023-09-01 | 江苏苏盐阀门机械有限公司 | Corrosion-proof oil well valve |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021023205A1 (en) | 2021-02-11 |
| CN110425311B (en) | 2022-07-29 |
| ZA202204142B (en) | 2022-06-29 |
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