CN108119276A - Piezoelectric type high-speed large-flow two-position three-way valve - Google Patents
Piezoelectric type high-speed large-flow two-position three-way valve Download PDFInfo
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- CN108119276A CN108119276A CN201711383365.7A CN201711383365A CN108119276A CN 108119276 A CN108119276 A CN 108119276A CN 201711383365 A CN201711383365 A CN 201711383365A CN 108119276 A CN108119276 A CN 108119276A
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- Prior art keywords
- cavity
- valve
- spool
- valve body
- drain path
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0045—Three-way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
Abstract
The invention discloses a kind of piezoelectric type high-speed large-flow two-position three-way valve, which includes the valve body with openend and blind end, and the openend of valve body is provided with valve deck, and the inner cavity of valve body is the first cavity and the stepped cavity of the second cavity composition；Outer spool is equipped in first cavity, one end of outer spool extends to the blind end of valve body, and the other end of outer spool extends to the openend of valve body and penetrates in the second cavity；It is provided in second cavity between outer spool and valve deck and drives outer spool piezoelectric ring in axial sliding in the circular and deformation that can be powered；The inner cavity of outer spool towards one end of openend to the other end by being divided into the first cavity, the second cavity, the 3rd cavity, the 4th cavity；The first inner spool is equipped in first cavity, the second inner spool is equipped in the 4th cavity.The present invention utilizes the inverse piezoelectric effect of piezoelectric ring so that outer spool is able to quick response and action, and control accuracy is high, flow is big, fast response time.
Description
Technical field
The present invention relates to two-position three-way valve, in particular to a kind of piezoelectric type high-speed large-flow two-position three-way valve.
Background technology
At present, marine diesel electric control fuel oil jet system has very high requirement to high-speed large-flow solenoid valve：It is necessary
Meet the requirements such as big flow, high-speed response, control accuracy are high and uniformity is good simultaneously；It meanwhile will also can be in high pressure, high temperature, height
Under the mal-conditions such as wet and vibration, reliably worked with very high frequency stabilization by the control requirement of system.However, big at a high speed flow
It is often conflict to measure the high-pressure high-flow of valve and quick response, and the requirement of big flow needs to circulate by the valve port for improving valve
Area realizes which increases the spool quality of valve, so as to increase the motional inertia of spool, reduce solenoid valve and quickly ring
The characteristic answered；Moreover, the high-voltage oil liquid in the valve chamber of solenoid valve can also increase the resistance that spool is turned on and off, electromagnetism is extended
The response time of valve.Therefore, high-speed large-flow valve is developed, makes its response speed and negotiability that can meet electric-controlled fuel injector combustion
Oil spurts control requirement, is the practical key technology that must be solved of marine diesel electric control fuel oil jet system.
In the prior art, Authorization Notice No. is that the Chinese utility model patent of CN1131387C is disclosed in a kind of double freedom
Poppet valve core two-position three way formula solenoid valve although the solenoid valve has high speed dynamic response performance and big flow characteristic, actually makes
Used time has the following problems：Due to the solenoid valve outer spool rely on resetting spring elastic reset, and with model spring very
Be difficult to guarantee same accurately elastic force, thus this solenoid valve production when, it is difficult to ensure that possessing with the solenoid valve of model identical
Response speed is not high so as to cause the control accuracy of the solenoid valve.
Authorization Notice No. is that the Chinese invention patent of CN103851226B discloses a kind of high-speed large-flow Self-resetting electromagnetism
Valve although the solenoid valve has high speed dynamic response performance and big flow characteristic, has the following problems in actual use：Due to
The outer spool of the solenoid valve is resetted by hydraulic coupling so that the electromagnetic force that opens solenoid valve needs is very big, and trigger current is very big, long
Time service fever is serious, and hydraulic coupling opens and closes variation complexity in solenoid valve, so this solenoid valve is difficult to possess
Identical response speed is not high so as to cause the control accuracy of the solenoid valve.
The content of the invention
Present invention aim to provide, a kind of control accuracy is high, flow is big, fast response time piezoelectric type high speed is big
Flow two-position three-way valve.
To achieve the above object, piezoelectric type high-speed large-flow two-position three-way valve provided by the invention, including with openend
With the valve body of blind end, the openend of the valve body is provided with valve deck, is characterized in that：The inner cavity of the valve body is first
The stepped cavity that cavity and the second cavity are formed；It is equipped with outer spool in first cavity, one end of the outer spool is to valve body
Blind end extension, the other end of the outer spool extends to the openend of valve body and penetrates in the second cavity；Second chamber
It is provided in vivo between outer spool and valve deck and drives outer spool piezoelectric ring in axial sliding in the circular and deformation that can be powered；
The inner cavity of the outer spool by towards one end of openend to the other end be divided into the first cavity, the second cavity, the 3rd cavity,
And the 4th cavity；The first inner spool is equipped in first cavity, the second inner spool is equipped in the 4th cavity.This
Sample is provided with the piezoelectric ring in circular and the deformation that can be powered so that outer spool is connected with piezoelectric ring between outer spool and valve deck
It is integrated, utilizes the inverse piezoelectric effect of piezoelectric ring so that outer spool is able to quick response and action, eliminates electromagnetic interference to its shadow
Loud possibility, while electromagnetic interference of the solenoid valve to other electric appliances is also eliminated, control accuracy is high, flow is big, fast response time；
Simultaneously as the driving current very little of piezoelectric ring, effectively solve the problems, such as that solenoid valve works long hours fever, improving makes
Use the service life.
Further, be provided on the valve body oil inlet being connected with external common rail pipe, for external oil spout
The control mouth of device connection and the oil return opening for being connected with external fuel tank；It is provided with and oil inlet pair on first cavity
The fuel feed hole answered is provided with control hole corresponding with control mouth on the 3rd cavity, is provided on the 4th cavity with returning
The corresponding oil return hole of hydraulic fluid port.
Further, the first drain path and the second drain path are additionally provided on the valve body, first draining leads to
The one end in road is connected with the second cavity, and the other end of first drain path is connected with one end of the second drain path, described
The other end of second drain path is connected with oil return opening.
Further, it is located on the valve body at the river conjunction of the first drain path and the second drain path and is provided with unidirectionally
Oil drain valve component.In this way, by opening up the first drain path and the second drain path on valve body, and the first drain path with
Unidirectional oil drain valve component is provided at the river conjunction of second drain path, so just integrates the oil return opening of solenoid valve with drain tap
Together, and the connection or disconnected of the first drain path and the second drain path can be controlled by unidirectional oil drain valve component
It opens, simplifies the structure of this solenoid valve, also save the connection of valve body vessel.
Further, the unidirectional oil drain valve component includes pedestal, spring and check valve pearl；The pedestal is fixed at
It is arranged on valve body with the first drain path face, the bottom of the spring is abutted with pedestal, the top of the spring and check valve
Pearl abuts, and the check valve pearl can compress spring downwards in the first drain path and be led to connecting the first draining under the action of oil pressure
Road and the second drain path.
Further, it is provided with to monitor the displacement sensor of piezoelectric ring movement position on the side wall of the valve body, it can
To realize global motion monitoring.
Further, the inner cavity inner thread of one end outer wall of the piezoelectric ring and valve deck connects, the piezoelectric ring it is another
One end inner wall is connected with one end outer wall thread of outer spool towards valve deck.In this way, mode of the piezoelectric ring by using threaded connection
Fixed, it is indefinite that this fixed form can be effectively prevented telescopic direction in the cavity that piezoelectric ring is formed in valve deck and valve body, so as to
Avoiding piezoelectric ring, telescopic direction is indefinite during the motion；Meanwhile this fixed form is more convenient in piezoelectric ring and first
The installation positioning of spool.
Further, the radius of the 4th cavity is more than the radius of the first cavity, and the radius of first cavity is more than
The radius of 3rd cavity, the radius of the 3rd cavity are more than the radius of the second cavity.
Yet further, one end of first inner spool is abutted with valve deck, and the other end can slide axially work in outer spool
It is abutted with the lower end face with the second cavity, and the bearing surface of first inner spool and the second cavity is cone match；
One end of second inner spool is abutted with the blind end of valve body, and the other end can slide axially in outer spool under effect
It is abutted with the end face of the 3rd cavity, and the bearing surface of second inner spool and the 3rd cavity is cone match.
Further, the connector for being powered to piezoelectric ring is provided on the valve body.
Compared with prior art, the invention has the advantages that：
First, the piezoelectric ring in circular and the deformation that can be powered is provided between the outer spool and valve deck of the present invention so that
Outer spool is connected as one with piezoelectric ring, utilizes the inverse piezoelectric effect of piezoelectric ring so that and outer spool is able to quick response and action,
The possibility that electromagnetic interference influences it is eliminated, while also eliminates electromagnetic interference of the solenoid valve to other electric appliances, control accuracy height,
Flow is big, fast response time；Simultaneously as the driving current very little of piezoelectric ring, effectively solves solenoid valve and works long hours
The problem of fever, improves service life.
Second, the present invention is led to by opening up the first drain path and the second drain path on valve body, and in the first draining
Unidirectional oil drain valve component is provided at the river conjunction of road and the second drain path, so just by the oil return opening and drain tap of solenoid valve
Be integrated together, and by unidirectional oil drain valve component can control the first drain path and the second drain path connection or
Person disconnects, and simplifies the structure of this solenoid valve, also saves the connection of valve body vessel.
Third, the piezoelectric ring of the present invention is fixed by using the mode of threaded connection, this fixed form can effectively prevent
Telescopic direction is indefinite in the cavity that only piezoelectric ring is formed in valve deck and valve body, stretches during the motion so as to avoid piezoelectric ring
Direction is indefinite；Meanwhile this fixed form is more convenient for the installation positioning of piezoelectric ring and the first inner spool.
Fourth, one-time positioning is processed into the first cavity and the second cavity in the valve body of the present invention, without additionally in valve deck
Secondary positioning processing circular hole, so as to simplify the processing technology of valve deck and valve body, reduces cost；And valve body is integrally machined,
Reduce assembly technology requirement, while decrease the component of sealing.
Fifth, the present invention by being additionally arranged displacement sensor on valve body, can realize global motion monitoring.
Sixth, the first inner spool of the present invention and the bearing surface of the second cavity are cone match, the second inner spool and the 3rd
The bearing surface of cavity is cone match, adds sealing performance between the two.
Description of the drawings
Fig. 1 is a kind of main structure diagram of piezoelectric type high-speed large-flow two-position three-way valve；
Fig. 2 is the side structure schematic view of piezoelectric type high-speed large-flow two-position three-way valve shown in Fig. 1；
Fig. 3 is piezoelectric type high-speed large-flow two-position three-way valve shown in Fig. 1 in the energized state along the sectional structure in A-A directions
Schematic diagram；
Fig. 4 is piezoelectric type high-speed large-flow two-position three-way valve shown in Fig. 1 in the energized state along the sectional structure in B-B directions
Schematic diagram；
Fig. 5 is piezoelectric type high-speed large-flow two-position three-way valve shown in Fig. 1 in the power-off state along the sectional structure in A-A directions
Schematic diagram；
Fig. 6 is piezoelectric type high-speed large-flow two-position three-way valve shown in Fig. 5 in the power-off state along the sectional structure in C-C directions
Schematic diagram；
Fig. 7 is the enlarged structure schematic diagram of Fig. 3 China and foreign countries spool；
In figure, valve body 1 (openend 1.1, blind end 1.2, the first cavity 1.3, the second cavity 1.4), valve deck 2, outer spool 3
In (the first cavity 3.1, the second cavity 3.2, the 3rd cavity 3.3, the 4th cavity 3.4), piezoelectric ring 4, the first inner spool 5, second
Spool 6, fuel feed hole 7.1, control hole 7.2, oil return hole 7.3, oil inlet 8.1, control mouth 8.2, oil return opening 8.3, the first draining lead to
Road 9.1, the second drain path 9.2, unidirectional oil drain valve component 10, pedestal 10.1, spring 10.2, check valve pearl 10.3, displacement pass
Sensor 11, connector 12.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
A kind of piezoelectric type high-speed large-flow two-position three-way valve as depicted, including with openend 1.1 and blind end 1.2
Valve body 1, the openend 1.1 of valve body 1 is provided with valve deck 2, and the inner cavity of valve body 1 is formed for the first cavity 1.3 and the second cavity 1.4
Stepped cavity；Outer spool 3 is equipped in first cavity 1.3, one end of outer spool 3 extends to the blind end 1.2 of valve body 1, outer valve
The other end of core 3 extends to the openend of valve body 1 1.1 and penetrates in the second cavity 1.4；It is located at outer spool 3 in second cavity 1.4
The piezoelectric ring 4 in circular and the deformation that can be powered is provided between valve deck 2, piezoceramic material system may be employed in piezoelectric ring 4
Into.One end outer wall of piezoelectric ring 4 is connected with the inner cavity inner thread of valve deck 2, the other end inner wall of piezoelectric ring 4 and outer 3 court of spool
One end outer wall thread connection to valve deck 2.It is provided between outer spool 3 and valve deck 2 outer in the circular and deformation drive that can be powered
Piezoelectric ring 4 in axial sliding of spool 3 so that outer spool 3 is connected as one with piezoelectric ring 4, utilizes the inverse piezoelectricity effect of piezoelectric ring 4
It should so that outer spool 3 is able to quick response and action, eliminates the possibility that electromagnetic interference influences it, while also eliminates electromagnetism
Valve is to the electromagnetic interference of other electric appliances, and control accuracy is high, flow is big, fast response time；Simultaneously as the driving electricity of piezoelectric ring 4
Very little is flowed, effectively solves the problems, such as that solenoid valve works long hours fever, improves service life.
In above-mentioned technical proposal, the inner cavity of outer spool 3 towards one end of openend 1.1 to the other end by being divided into first
Cavity 3.1, the second cavity 3.2, the 3rd cavity 3.3 and the 4th cavity 3.4, the radius of the 4th cavity 3.4 are more than the first cavity
3.1 radius, the radius of the first cavity 3.1 are more than the radius of the 3rd cavity 3.3, and the radius of the 3rd cavity 3.3 is more than the second sky
The radius of chamber 3.2；The first inner spool 5 is equipped in first cavity 3.1, the second inner spool 6 is equipped in the 4th cavity 3.4, the
One end of one inner spool 5 is abutted with valve deck 2, the end face that the other end can be under the effect of sliding axially of outer spool 3 with the second cavity 3.2
It abuts, and the bearing surface of the first inner spool 5 and the second cavity 3.2 is cone match；One end of second inner spool 6 and valve body 1
Blind end 1.2 abuts, and the other end can abut under the effect of sliding axially of outer spool 3 with the end face of the 3rd cavity 3.3, and in second
The bearing surface of 6 and the 3rd cavity 3.3 of spool is cone match.
In above-mentioned technical proposal, be provided on valve body 1 oil inlet 8.1 being connected with external common rail pipe, for it is outer
The control mouth 8.2 of portion's fuel injector connection and the oil return opening 8.3 for being connected with external fuel tank；It is provided on first cavity 3.1
With 8.1 corresponding fuel feed hole 7.1 of oil inlet, be provided on the 3rd cavity 3.3 with 8.2 corresponding control hole 7.2 of control mouth, the 4th
It is provided on cavity 3.4 and 8.3 corresponding oil return hole 7.3 of oil return opening.It is provided with to monitor piezoelectric ring 4 on the side wall of valve body 1
The displacement sensor 11 of movement position is provided with the connector 12 for being powered to piezoelectric ring 4 on valve body 1.
In above-mentioned technical proposal, the first drain path 9.1 and the second drain path 9.2 are additionally provided on valve body 1, first lets out
One end of oily passage 9.1 is connected with the second cavity 1.4, and the one of the other end of the first drain path 9.1 and the second drain path 9.2
End connection, the other end of the second drain path 9.2 are connected with oil return opening 8.3.It is located at the first drain path 9.1 and the on valve body 1
Unidirectional oil drain valve component 10 is provided at the river conjunction of two drain paths 9.2.Unidirectional oil drain valve component 10 includes pedestal 10.1, bullet
Spring 10.2 and check valve pearl 10.3；Pedestal 10.1 is fixed on valve body 1 to be arranged with 9.1 face of the first drain path, spring
10.2 bottom is abutted with pedestal 10.1, and the top of spring 10.2 is abutted with check valve pearl 10.3, and check valve pearl 10.3 can be
It compresses spring 10.2 in one drain path 9.1 under the action of oil pressure downwards and is led to connecting the first drain path 9.1 with the second draining
Road 9.2.In this way, by opening up the first drain path 9.1 and the second drain path 9.2 on valve body 1, and in the first drain path
9.1 and second drain path 9.2 river conjunction at be provided with unidirectional oil drain valve component 10, so just by the oil return opening of solenoid valve with
Drain tap is integrated together, and can control the first drain path 9.1 and the second draining by unidirectional oil drain valve component 10
The connection or disconnection of passage 9.2 simplify the structure of this solenoid valve, also save the connection of valve body vessel.
The operation principle of the present invention：During energization, piezoelectric ring 4, which is shunk, drives outer spool 3 to be moved towards the direction of valve deck 1, the
One inner spool 5 is in contact with the sealing cone to cooperate at the fuel feed hole 7.1 of outer spool 3, the oil inlet connected with common rail pipe
8.1 and outer spool 3 on corresponding fuel feed hole 7.1 close, the control mouth 8.2 that is connected with fuel injector and corresponding to outer spool 3
On control hole 7.2 be connected, with the oil return opening 8.3 of fuel tank connection and connecting corresponding to the oil return hole 7.3 on outer spool
Logical, low pressure oil returns to fuel tank by oil return opening 8.3；During power-off, piezoelectric ring 4 can Fast Restoration, outer spool 3 is towards blind end 1.2
Direction moves, and the first inner spool 5 is in contact with the sealing cone that the oil return hole 7.3 of outer spool 3 cooperates, and plays sealing oil return
The effect of mouth 8.3 is connected at this time with corresponding fuel feed hole 7.1 on the oil inlet 8.1 of common rail pipe connection and outer spool 3, with
Fuel injector connection control mouth 8.2 and be connected corresponding to the control hole 7.2 on outer spool 3, the oil pressure of control mouth 8.2 with
The oil pressure of common rail pipe is identical, the fuel injector oil spout that oil pressure actuated is ined succession with control mouth 8.2, since 4 this reset force of piezoelectric ring can
With Rapid reset solenoid valve, in addition, the pressure of the high pressure oil in fuel feed hole is big, so the high pressure oil in fuel feed hole can external spool
Larger reset force is generated, improves the response speed of this solenoid valve.
The above description is merely a specific embodiment, it is noted that any those skilled in the art exist
Disclosed herein technical scope in, the change or replacement that can readily occur in, should all cover protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of piezoelectric type high-speed large-flow two-position three-way valve, including the valve body with openend (1.1) and blind end (1.2)
(1), the openend (1.1) of the valve body (1) is provided with valve deck (2), it is characterised in that：
The stepped cavity that the inner cavity of the valve body (1) is formed for the first cavity (1.3) and the second cavity (1.4)；First cavity
(1.3) outer spool (3) is equipped in, one end of the outer spool (3) extends to the blind end (1.2) of valve body (1), the outer valve
The other end of core (3) extends to the openend (1.1) of valve body (1) and penetrates in the second cavity (1.4)；Second cavity
(1.4) it is provided between outer spool (3) and valve deck (2) and drives outer spool (3) axial in the circular and deformation that can be powered
The piezoelectric ring (4) of slip；
The inner cavity of the outer spool (3) by one end to the other end towards openend (1.1) be divided into the first cavity (3.1),
Second cavity (3.2), the 3rd cavity (3.3) and the 4th cavity (3.4)；It is equipped in first cavity (3.1) in first
Spool (5), the 4th cavity (3.4) is interior to be equipped with the second inner spool (6).
2. piezoelectric type high-speed large-flow two-position three-way valve according to claim 1, it is characterised in that：On the valve body (1)
Be provided with the oil inlet (8.1) being connected with external common rail pipe, for be connected with external fuel injector control mouth (8.2), with
And the oil return opening (8.3) for being connected with external fuel tank；
Fuel feed hole (7.1) corresponding with oil inlet (8.1), the 3rd cavity (3.3) are provided on first cavity (3.1)
On be provided with control hole (7.2) corresponding with control mouth (8.2), be provided on the 4th cavity (3.4) with oil return opening (8.3)
Corresponding oil return hole (7.3).
3. piezoelectric type high-speed large-flow two-position three-way valve according to claim 2, it is characterised in that：On the valve body (1)
It is additionally provided with the first drain path (9.1) and the second drain path (9.2), one end of first drain path (9.1) and the
Two cavitys (1.4) connect, and the other end of first drain path (9.1) is connected with one end of the second drain path (9.2), institute
The other end for stating the second drain path (9.2) is connected with oil return opening (8.3).
4. piezoelectric type high-speed large-flow two-position three-way valve according to claim 3, it is characterised in that：On the valve body (1)
Unidirectional oil drain valve component (10) is provided at the river conjunction of the first drain path (9.1) and the second drain path (9.2).
5. piezoelectric type high-speed large-flow two-position three-way valve according to claim 4, it is characterised in that：The unidirectional gate gurgle valve
Component (10) includes pedestal (10.1), spring (10.2) and check valve pearl (10.3)；The pedestal (10.1) is fixed at valve
Arrange that the bottom of the spring (10.2) is abutted with pedestal (10.1), described with the first drain path (9.1) face on body (1)
The top of spring (10.2) is abutted with check valve pearl (10.3), and the check valve pearl (10.3) can be in the first drain path (9.1)
Spring (10.2) is compressed under the action of interior oil pressure downwards to connect the first drain path (9.1) and the second drain path (9.2).
6. according to Claims 1 to 5 any one of them piezoelectric type high-speed large-flow two-position three-way valve, it is characterised in that：It is described
It is provided with to monitor the displacement sensor (11) of piezoelectric ring (4) movement position on the side wall of valve body (1).
7. according to Claims 1 to 5 any one of them piezoelectric type high-speed large-flow two-position three-way valve, it is characterised in that：It is described
One end outer wall of piezoelectric ring (4) is connected with the inner cavity inner thread of valve deck (2), the other end inner wall of the piezoelectric ring (4) with it is outer
One end outer wall thread of spool (3) towards valve deck (2) connects.
8. according to Claims 1 to 5 any one of them piezoelectric type high-speed large-flow two-position three-way valve, it is characterised in that：It is described
The radius of 4th cavity (3.4) is more than the radius of the first cavity (3.1), and the radius of first cavity (3.1) is more than the 3rd sky
The radius of chamber (3.3), the radius of the 3rd cavity (3.3) are more than the radius of the second cavity (3.2).
9. according to Claims 1 to 5 any one of them piezoelectric type high-speed large-flow two-position three-way valve, it is characterised in that：It is described
One end of first inner spool (5) is abutted with valve deck (2), and the other end effect of can sliding axially in outer spool (3) is lower and the second cavity
(3.2) end face abuts, and the bearing surface of first inner spool (5) and the second cavity (3.2) is cone match；
One end of second inner spool (6) is abutted with the blind end (1.2) of valve body (1), and the other end can be axial in outer spool (3)
Slip effect is lower to abut with the end face of the 3rd cavity (3.3), and the abutting of second inner spool (6) and the 3rd cavity (3.3)
Face is cone match.
10. according to Claims 1 to 5 any one of them piezoelectric type high-speed large-flow two-position three-way valve, it is characterised in that：It is described
The connector (12) being powered to piezoelectric ring (4) is provided on valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383365.7A CN108119276B (en) | 2017-12-20 | 2017-12-20 | Piezoelectric high-speed large-flow two-position three-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383365.7A CN108119276B (en) | 2017-12-20 | 2017-12-20 | Piezoelectric high-speed large-flow two-position three-way valve |
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| Publication Number | Publication Date |
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| CN108119276A true CN108119276A (en) | 2018-06-05 |
| CN108119276B CN108119276B (en) | 2020-02-07 |
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| CN201711383365.7A Active CN108119276B (en) | 2017-12-20 | 2017-12-20 | Piezoelectric high-speed large-flow two-position three-way valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805719A (en) * | 2019-11-08 | 2020-02-18 | 武汉理工大学 | High-speed large-stroke direct-acting piezoelectric valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0355723A1 (en) * | 1988-08-25 | 1990-02-28 | HYDRAULIK-RING ANTRIEBS- UND STEUERUNGSTECHNIK GmbH | Device for permanently affecting a fluid-stream, especially one in a valve |
| CN1277334A (en) * | 2000-07-28 | 2000-12-20 | 武汉理工大学 | Two-position and three-way solenoid valve with double free inner conic cores |
| CN105299261A (en) * | 2014-06-20 | 2016-02-03 | 比尔克特韦尔克有限公司 | Slide valve |
| DE102016205041A1 (en) * | 2016-03-24 | 2017-09-28 | Robert Bosch Gmbh | spool valve |
-
2017
- 2017-12-20 CN CN201711383365.7A patent/CN108119276B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0355723A1 (en) * | 1988-08-25 | 1990-02-28 | HYDRAULIK-RING ANTRIEBS- UND STEUERUNGSTECHNIK GmbH | Device for permanently affecting a fluid-stream, especially one in a valve |
| CN1277334A (en) * | 2000-07-28 | 2000-12-20 | 武汉理工大学 | Two-position and three-way solenoid valve with double free inner conic cores |
| CN105299261A (en) * | 2014-06-20 | 2016-02-03 | 比尔克特韦尔克有限公司 | Slide valve |
| DE102016205041A1 (en) * | 2016-03-24 | 2017-09-28 | Robert Bosch Gmbh | spool valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805719A (en) * | 2019-11-08 | 2020-02-18 | 武汉理工大学 | High-speed large-stroke direct-acting piezoelectric valve |
| CN110805719B (en) * | 2019-11-08 | 2022-04-01 | 武汉理工大学 | High-speed large-stroke direct-acting piezoelectric valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108119276B (en) | 2020-02-07 |
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