CN107740871B - Screw thread inserting type Solenoid ball valve - Google Patents
Screw thread inserting type Solenoid ball valve Download PDFInfo
- Publication number
- CN107740871B CN107740871B CN201710968636.9A CN201710968636A CN107740871B CN 107740871 B CN107740871 B CN 107740871B CN 201710968636 A CN201710968636 A CN 201710968636A CN 107740871 B CN107740871 B CN 107740871B
- Authority
- CN
- China
- Prior art keywords
- spool
- flow control
- valve
- control hole
- port
- 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.)
- Expired - Fee Related
Links
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
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
-
- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of screw thread inserting type Solenoid ball valves, it is characterised in that: including the valve pocket with inner passage, through-flow control hole, pressure oil port and oil return opening are provided on valve pocket；Spool is connected with guide cylinder, first conical surface, second conical surface and sealing convex shoulder in turn from left to right, seals and forms liquid sealing between the periphery wall of convex shoulder and the inner hole of valve pocket, and the width of sliding sleeve is greater than the aperture of through-flow control hole；Electromagnet is screwed with valve pocket and connect.It is a kind of screw thread inserting type Solenoid ball valve simple and reasonable, that operating position and the equal No leakage of crossover position that commutates can be achieved.
Description
Technical field
The present invention relates to a kind of Solenoid ball valve, a kind of especially screw thread inserting type Solenoid ball valve.
Background technique
Control valve class is one of main prototype part of hydraulic system, and wherein Solenoid ball valve is one kind of control valve class.Electromagnetic ball
Valve is exactly that spool is spherical solenoid electric valve, it is in addition to having all features of solenoid valve, and there are also its exclusive some characteristics.Its
Using the ball-type solenoid directional control valve that the thrust of electromagnet pushes steel ball to realize oil circuit on-off as driving force, it is suitable for various mineral
Oil is the hydraulic system of working media, to realize the pilot control of No leakage.It, can also when meeting flow-drooping characteristic requirement
Direction controlling as other executing agencies.
Such as the Chinese utility model patent that an Authorization Notice No. is CN202048222U, entitled " direct-push type electromagnetic ball valve "
The Solenoid ball valve for disclosing such a two-position three way, when electromagnet no power, steel ball is directly pressed in T mouthfuls of end valves by spring
On seat, P mouthfuls and A mouthfuls conductings, cut-off and No leakage between A mouthfuls and T mouthfuls；When the solenoid is energized, electromagnet overcomes spring force will
Steel ball is shifted on P mouthfuls of end valve seats, and A mouthfuls and T mouthful communicate, the hole the P and hole A is ended and No leakage.Although foregoing invention is able to achieve two
The No leakage of operating position, but be detached from T mouthfuls of end valve seats in crossover position, that is, steel ball or be detached from P mouthfuls of end valve seats, it is in T mouthfuls
Between end valve seat and P mouthfuls of end valve seats, when any one end valve seat contact seal of getting along well, P mouthfuls at this time, A mouthfuls and T mouthfuls are communicated, and P mouthfuls
Oil liquid can directly flow back to T mouthfuls, be the purpose that No leakage cannot be achieved at this time, this is requiring the stringent application to be leakage
Do not allow.In addition foregoing invention is board-like connection, and volume is compared with huge, and existing market is badly in need of the thread cartridge of volume compact
Formula Solenoid ball valve.
Therefore, a screw thread inserting type electromagnetic ball that can guarantee No leakage even if transitional intermediate positions how is designed
Valve is the technical problem that those skilled in the art need to solve.
Summary of the invention
The technical problem to be solved by the present invention is to provided for above-mentioned state of the art it is a kind of it is simple and reasonable,
Volume compact, the screw thread inserting type Solenoid ball valve that operating position and the equal No leakage of crossover position that commutates can be achieved.
The technical scheme of the invention to solve the technical problem is: a kind of screw thread inserting type Solenoid ball valve, special
Sign is:
Including the valve pocket with inner step channel, the pressure being axially arranged communicated with inner step channel is provided on valve pocket
Power hydraulic fluid port, the through-flow control hole being arranged radially and the oil return opening being arranged radially are equipped in one at the pressure oil port of valve pocket right part
Empty valve seat, valve seat are to be screwed to connect with valve pocket；Valve pocket inner step channel include from left to right small-bore portion and
Large aperture portion, small-bore portion right side have the first valve port to be connected to valve pocket large aperture portion and small-bore portion；Tool on the left of valve seat
There is second valve port in connection large aperture portion and pressure oil port；Spool, be connected in turn from left to right guide cylinder, first conical surface,
Second conical surface and sealing convex shoulder form liquid sealing between the periphery wall of the sealing convex shoulder and the large aperture portion of valve pocket, seal convex
The width of shoulder is greater than the aperture of through-flow control hole；It moves to left to first conical surface thereon in spool by the complete impaction state of the first valve port
Under, the sealing convex shoulder is located on the left of through-flow control hole, and through-flow control hole and oil return opening block, meanwhile, through-flow control hole passes through
It is connected to after second valve port with pressure oil port；It moves to right to second conical surface thereon in spool by under the complete impaction state of the second valve port,
The sealing convex shoulder is located on the right side of through-flow control hole, and through-flow control hole is connected to the return port after passing through large aperture portion, the first valve port,
Through-flow control hole and pressure oil port block simultaneously；The complete impaction state of the first valve port is transitioned into second from first conical surface in spool
The conical surface gradually hides through-flow control hole so as to seal convex shoulder for during the complete impaction state of the second valve port, spool is moved right
It covers, through-flow control hole and pressure oil port gradually block；Through-flow control hole is all covered when sealing convex shoulder, the through-flow control
Hole is blocked with oil return opening and pressure oil port simultaneously；Spool continue to move right so that seal convex shoulder gradually by through-flow control hole gradually
Expose, oil return opening and through-flow control hole gradually communicate, and in the process, oil return opening and pressure oil port block always；Spool driving
Structure, to drive spool to move left and right.
Preferably, above-mentioned spool driving structure includes the first gasket, it is set to the valve pocket left side；Second gasket, if
In the left part of spool；Spring is sheathed on the left part of spool, and left end offsets with second gasket, right end and
One gasket offsets；The spring acts on the trend that spool keeps a left side to push away spool；Electromagnet is to push spool to move to right.This driving knot
Structure is rationally distributed.
It is constrained to be formed to spool, it is ensured that smoothly left and right sliding, the guide cylinder of spool are slidably arranged in institute to spool
The small-bore portion of valve pocket is stated, and is equipped with sealing element between the periphery of spool guide cylinder and valve pocket small-bore portion.
As an improvement, the electromagnet is screwed with valve pocket and connect, mandril, the right end and valve of mandril are equipped in electromagnet
The left end of core matches.
Above-mentioned valve core inside is equipped with connection runner, and the left and right end of spool is connected to by connection runner, in this way can be with balance valve core
The stress of left and right ends reduces the design power of electromagnet, makes whole more compact.
Compared with the prior art, the advantages of the present invention are as follows: spool be equipped with guide cylinder, first conical surface, second conical surface and
Convex shoulder is sealed, seals and forms liquid sealing between the periphery wall of convex shoulder and the large aperture portion of valve pocket, the width for sealing convex shoulder, which is greater than, to be led to
The aperture of flow control drilling；In this way when spool driving structure driving core assembly move to left it is to first conical surface thereon that the first valve port is complete
Under full impaction state, sealing convex shoulder is located on the left of through-flow control hole, and through-flow control hole and oil return opening block, while through-flow control hole
By being connected to after the second valve port with pressure oil port；When spool driving structure driving spool is moved to right second to second conical surface thereon
Under the complete impaction state of valve port, the first hydraulic fluid port is connected to the return port by through-flow control hole, through-flow control hole, while through-flow control
Hole and pressure oil port block；Under the centrally located state of spool, through-flow control hole is completely covered by by sealing convex shoulder, through-flow control
Drilling is blocked with oil return opening and pressure oil port simultaneously；So this screw thread inserting type Solenoid ball valve is by changing spool and valve pocket
Into, can guarantee operating position and commutation crossover position all No leakages, and volume compact.
Detailed description of the invention
Fig. 1 is the structure sectional view of the embodiment of the present invention；
Fig. 2 is the application principle schematic diagram of the embodiment of the present invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
It is a preferred embodiment of the present invention as shown in Fig. 1~2.
A kind of screw thread inserting type Solenoid ball valve, including
Valve pocket 1 with inner step channel is provided with the pressure being axially arranged communicated with inner step channel on valve pocket 1
Hydraulic fluid port P, the through-flow control hole A being arranged radially and the oil return inlet T being arranged radially are equipped with one at the pressure oil port P of 1 right part of valve pocket
Hollow valve seat 2, valve seat 2 are to be screwed to connect with valve pocket 1；1 inner step channel of valve pocket includes small-bore portion from left to right
There is the first valve port to be connected to valve pocket large aperture portion 1b and small-bore portion 1a on the right side of 1a and large aperture portion 1b, small-bore portion 1a
1c；There is the second valve port 21 of connection large aperture portion 1b and pressure oil port P on the left of valve seat 2.
Spool 5 is connected with guide cylinder 51, first conical surface 52, second conical surface 53 and sealing convex shoulder 54 in turn from left to right,
It seals and forms liquid sealing between the periphery wall of convex shoulder 54 and the large aperture portion 1b of valve pocket 1, the width D of sealing convex shoulder 54 is greater than through-flow
The aperture of control hole A
It moves to left to first conical surface 52 thereon in spool 5 by under the first complete impaction state of valve port 1c, seals convex shoulder 54
On the left of through-flow control hole A, through-flow control hole A and oil return inlet T are blocked, meanwhile, through-flow control hole A pass through after the second valve port 21 with
Pressure oil port P connection.
It moves to right to second conical surface 53 thereon in spool 5 by under the complete impaction state of the second valve port 21, seals convex shoulder 54
In through-flow 31 right side of control hole, through-flow control hole A is connected to oil return inlet T after passing through large aperture portion 1b, the first valve port 1c, leads to simultaneously
Flow control drilling A and pressure oil port P is blocked.
The first complete impaction state of valve port 1c is transitioned into second conical surface 53 for the second valve port from first conical surface 52 in spool 5
During 21 complete impaction states, spool 5, which moves right, gradually covers in through-flow control hole A so as to seal convex shoulder 54, leads to
Flow control drilling A and pressure oil port P are gradually blocked；Through-flow control hole A is all covered when sealing convex shoulder 54, the through-flow control hole
A is blocked with oil return inlet T and pressure oil port P simultaneously；Spool 5 continues to move right so as to seal convex shoulder 54 gradually for through-flow control hole
A gradually exposes, and oil return inlet T and through-flow control hole A gradually communicate, in the process, oil return inlet T and pressure oil port P) it hinders always
It is disconnected；Spool driving structure, to drive spool 5 to move left and right.Spool driving structure includes:
First gasket 3 is set to 1 left side of valve pocket；Second gasket 6, set on the left part of spool 5；Spring 4, is sheathed on valve
The left part of core 5, and left end offsets with the second gasket 6, and right end offsets with the first gasket 3；Spring 4 acts on the holding of spool 5
A left side pushes away the trend of spool 5.
Electromagnet 10 is to push spool 5 to move to right.
The guide cylinder 51 of spool 5 is slidably arranged in the small-bore portion 1a of valve pocket 1, and the periphery of spool guide cylinder 51 with
Sealing element is equipped between the portion 1a of valve pocket small-bore.
Electromagnet 7 is screwed with valve pocket 1 and connect, and mandril 8, the right end of mandril 8 and a left side for spool 5 are equipped in electromagnet 7
End matches.
Valve core inside is equipped with connection runner 55, and the left and right ends of spool 5 are connected to by connection runner 55, and it is left to be used to balance valve core
Right both ends stress reduces Electromagnetic Design power.
The operation principle and process of this screw thread inserting type Solenoid ball valve is as follows.
When electromagnet 7 must not be electric, spring 4 is shifted spool 5 at first valve port 1c by the second gasket 6, first conical surface 52
By under the first complete impaction state of valve port 1c, sealing convex shoulder 54 is located on the left of through-flow control hole A, through-flow control hole A and oil return inlet T
It blocks, while through-flow control hole A is connected to by large aperture portion 1b with pressure oil port P.
Electromagnet 7 must be electric, and 7 inside mandril 8 of electromagnet pushes spool 5 to overcome the compressing force of spring 4, and spool 5 is pushed away to the right
It is dynamic, first control hole A through-flow on valve pocket 1 gradually can be covered in when spool 5 moves right, so the sealing in spool 5
Convex shoulder 54 during through-flow control hole A is gradually covered through-flow control hole A and pressure oil port P still communicate, but oil return inlet T and
What through-flow control hole A was off；When the sealing convex shoulder 54 in spool 5 all covers through-flow control hole A, and continue to the right
When movement, spool 5 successively can gradually expose through-flow control hole A, and pressure oil port P and through-flow control hole A can be gradually during this
It communicates, and through-flow control hole A and pressure oil port P are (because it is close to form liquid between the periphery wall of sealing convex shoulder 54 and the inner hole of valve pocket 3
Envelope) cut-off, until second conical surface 53 compresses the second valve port 21 completely, sealing convex shoulder 54 is located on the right side of through-flow control hole A, through-flow
Control hole A is connected to after passing through the first valve port 1c with oil return inlet T, meanwhile, through-flow control hole A and pressure oil port P are blocked.So this
Invention can guarantee in operating position and commutation crossover position all No leakages.
Although the preferred embodiment of the present invention has been described in detail above, it is to be clearly understood that for this field
Technical staff for, the invention may be variously modified and varied.Done within the spirit and principles of the present invention
What modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of screw thread inserting type Solenoid ball valve, it is characterised in that: including
Valve pocket (1) with inner step channel is provided with the pressure being axially arranged communicated with inner step channel on valve pocket (1)
Hydraulic fluid port (P), the through-flow control hole (A) being arranged radially and the oil return opening (T) being arranged radially, the pressure of valve pocket (1) right part
A hollow valve seat (2) is equipped at hydraulic fluid port (P), the valve seat (2) is to be screwed to connect with valve pocket (1)；In the valve pocket (1)
Portion's stepped channel includes small-bore portion (1a) and large aperture portion (1b) from left to right, have on the right side of the small-bore portion (1a) to
It is connected to the first valve port (1c) of valve pocket large aperture portion (1b) and small-bore portion (1a)；There is connection macropore on the left of the valve seat (2)
Second valve port (21) in diameter portion (1b) and pressure oil port (P)；
It is convex to be connected with guide cylinder (51), first conical surface (52), second conical surface (53) and sealing in turn from left to right for spool (5)
Shoulder (54) forms liquid sealing, seals convex shoulder between the periphery wall of sealing convex shoulder (54) and the large aperture portion (1b) of valve pocket (1)
(54) width (D) is greater than the aperture of through-flow control hole (A)
It moves to left to first conical surface (52) thereon in spool (5) by under the first valve port (1c) completely impaction state, the sealing is convex
Shoulder (54) is located on the left of through-flow control hole (A), and through-flow control hole (A) and oil return opening (T) are blocked, meanwhile, through-flow control hole (A) is logical
The second valve port (21) is crossed to be connected to pressure oil port (P) afterwards；
It moves to right to second conical surface (53) thereon in spool (5) by under the second valve port (21) completely impaction state, the sealing is convex
Shoulder (54) is located on the right side of through-flow control hole (31), through-flow control hole (A) by large aperture portion (1b), the first valve port (1c) afterwards with return
Hydraulic fluid port (T) connection, meanwhile, through-flow control hole (A) and pressure oil port (P) are blocked；
The first valve port (1c) impaction state completely is transitioned into second conical surface (53) for second from first conical surface (52) in spool (5)
Valve port (21) is completely during impaction state, spool (5) move right so that seal convex shoulder (54) by through-flow control hole (A) by
Step covers in, and through-flow control hole (A) and pressure oil port (P) gradually block；When sealing convex shoulder (54) is whole by through-flow control hole (A)
It covers, the through-flow control hole (A) blocks with oil return opening (T) and pressure oil port (P) simultaneously；Spool (5) continue to move right with
Expose sealing convex shoulder (54) gradually through-flow control hole (A) gradually, oil return opening (T) and through-flow control hole (A) gradually communicate,
During this, oil return opening (T) and pressure oil port (P) block always；
Spool driving structure, to drive spool (5) to move left and right.
2. screw thread inserting type Solenoid ball valve according to claim 1, it is characterised in that: the spool driving structure includes,
First gasket (3) is set to the valve pocket (1) left side；Second gasket (6), set on the left part of the spool；Spring
(4), it is sheathed on the left part of the spool (5), and left end offsets with second gasket (6), right end and described the
One gasket (3) offsets；The spring (4) acts on the trend that spool (5) keep a left side to push away spool (5)；
Electromagnet (10) is to push spool (5) to move to right.
3. screw thread inserting type Solenoid ball valve according to claim 2, it is characterised in that: the guide cylinder of the spool (5)
(51) the small-bore portion (1a) of the valve pocket (1), and the periphery of spool guide cylinder (51) and valve pocket small-bore are slidably arranged in
Sealing element is equipped between portion (1a).
4. screw thread inserting type Solenoid ball valve according to claim 2, it is characterised in that: the electromagnet (7) and valve pocket spiral shell
Line is fixedly connected, and is equipped with mandril (8) in electromagnet (7), and the right end of mandril (8) is matched with the left end of spool (5).
5. screw thread inserting type Solenoid ball valve according to claim 1, it is characterised in that: the company of being equipped with inside the spool (5)
The left and right ends of spool (5) are connected to by passage flow duct (55), connection runner (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968636.9A CN107740871B (en) | 2017-10-18 | 2017-10-18 | Screw thread inserting type Solenoid ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968636.9A CN107740871B (en) | 2017-10-18 | 2017-10-18 | Screw thread inserting type Solenoid ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107740871A CN107740871A (en) | 2018-02-27 |
| CN107740871B true CN107740871B (en) | 2019-04-19 |
Family
ID=61237493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710968636.9A Expired - Fee Related CN107740871B (en) | 2017-10-18 | 2017-10-18 | Screw thread inserting type Solenoid ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107740871B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728126A (en) * | 2020-12-27 | 2021-04-30 | 浙江鸿森机械有限公司 | Piston type electromagnetic valve opened without differential pressure |
| CN115479147B (en) * | 2021-09-26 | 2024-04-05 | 广东骏驰科技股份有限公司 | Oil way control valve |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3329165A (en) * | 1964-02-12 | 1967-07-04 | Erich Herion | Solenoid-operated multiway valves |
| US4664150A (en) * | 1983-03-24 | 1987-05-12 | Sulzer Brothers Limited | Changeover valve for controlling the throughflow of a pressure medium |
| CN1360165A (en) * | 2000-12-21 | 2002-07-24 | 速睦喜股份有限公司 | Lifting type solenoid valve |
| CN200946693Y (en) * | 2006-09-19 | 2007-09-12 | 宝山钢铁股份有限公司 | Hydraulic guide control water valve |
| CN101320275A (en) * | 2007-06-05 | 2008-12-10 | 喜开理株式会社 | Vacuum pressure control system |
| CN201354871Y (en) * | 2009-03-05 | 2009-12-02 | 山东泰丰液压设备有限公司 | Hydraulic electromagnetic ball valve |
| CN103438238A (en) * | 2013-08-26 | 2013-12-11 | 广东伊之密精密机械股份有限公司 | Three-way type pilot operated check valve |
| CN203348653U (en) * | 2013-06-26 | 2013-12-18 | 无锡商业职业技术学院 | Directly-operated type sequence valve |
| CN104791540A (en) * | 2013-10-15 | 2015-07-22 | 大陆汽车系统公司 | Normally high solenoid assembly |
| CN106471226A (en) * | 2014-07-03 | 2017-03-01 | 优尼克株式会社 | Oil pump control valve |
-
2017
- 2017-10-18 CN CN201710968636.9A patent/CN107740871B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3329165A (en) * | 1964-02-12 | 1967-07-04 | Erich Herion | Solenoid-operated multiway valves |
| US4664150A (en) * | 1983-03-24 | 1987-05-12 | Sulzer Brothers Limited | Changeover valve for controlling the throughflow of a pressure medium |
| CN1360165A (en) * | 2000-12-21 | 2002-07-24 | 速睦喜股份有限公司 | Lifting type solenoid valve |
| CN200946693Y (en) * | 2006-09-19 | 2007-09-12 | 宝山钢铁股份有限公司 | Hydraulic guide control water valve |
| CN101320275A (en) * | 2007-06-05 | 2008-12-10 | 喜开理株式会社 | Vacuum pressure control system |
| CN201354871Y (en) * | 2009-03-05 | 2009-12-02 | 山东泰丰液压设备有限公司 | Hydraulic electromagnetic ball valve |
| CN203348653U (en) * | 2013-06-26 | 2013-12-18 | 无锡商业职业技术学院 | Directly-operated type sequence valve |
| CN103438238A (en) * | 2013-08-26 | 2013-12-11 | 广东伊之密精密机械股份有限公司 | Three-way type pilot operated check valve |
| CN104791540A (en) * | 2013-10-15 | 2015-07-22 | 大陆汽车系统公司 | Normally high solenoid assembly |
| CN106471226A (en) * | 2014-07-03 | 2017-03-01 | 优尼克株式会社 | Oil pump control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107740871A (en) | 2018-02-27 |
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