CN110017393A - Automatically controlled boosting type opens valve slowly - Google Patents
Automatically controlled boosting type opens valve slowly Download PDFInfo
- Publication number
- CN110017393A CN110017393A CN201810015369.8A CN201810015369A CN110017393A CN 110017393 A CN110017393 A CN 110017393A CN 201810015369 A CN201810015369 A CN 201810015369A CN 110017393 A CN110017393 A CN 110017393A
- Authority
- CN
- China
- Prior art keywords
- slide
- bar
- piston
- valve
- compressed gas
- 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
Links
- 238000005086 pumping Methods 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 2
- 238000012163 sequencing technique Methods 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow 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
- 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
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The present invention provides a kind of automatically controlled boosting type and opens valve slowly, inside setting has the valve chamber of main channel, it can be to link the lateral pressure and secondary pressure of valve chamber two sides, the first slide-bar room and the second slide-bar room are additionally provided in valve chamber, the first slide-bar is arranged in first slide-bar room, and first the side wall of slide-bar room be equipped with and be connected to the pilot hole at the first slide-bar ceiling end, and the second slide-bar is arranged in the second slide-bar room, second slide-bar is pushing up, bottom both ends, it is respectively equipped with first piston and second piston, and third piston is additionally provided between two-piston, first piston cooperates the top of the second slide-bar room, respectively in the upper surface of first piston and lower end surface, each self-forming gas chamber and pumping chamber, the pressurization through-hole of connection pilot hole is equipped in pumping chamber, when the compressed gas of a lateral pressure, which flows into the second slide-bar by main channel, generates slow displacement upwards, it can will be oriented to The compressed gas of hole circulation pushes first piston, the second slide-bar is enable to accelerate to be displaced again up through pressurization through-hole input.
Description
Technical field
The present invention opens valve about a kind of automatically controlled boosting type slowly, mainly for pneumatic cylinder in the mistake for gradually increasing flow and pressure
Cheng Zhong is cooperated by the first slide-bar and closes overflow port and reach outside energy conservation, more to be pressurized through-hole auxiliary the second slide-bar of control, the
When the generation of two slide-bars is slowly displaced upwards, the compressed gas which circulates can be inputted through the pressurization through-hole, make second to slide
Axis fast offset, and secondary pressure is able to safety and quickly establishes.
Background technique
Baric systerm is mainly a kind of system transmitted pressure using compressed gas and control energy, and is to control
The operating state of system, it will usually which valve class component is set between pneumatic cylinder and pneumatic supply;
As shown in figure 5, this control valve 90 has the output end for the input terminal 92, output gas that input compressed gas 97
93 and for the exhaust end 94 of exhaust except, the inside of the control valve 90 is additionally provided with A slide-bar 95 and B slide-bar 96, to cooperate
The driving of solenoid valve 91 generates actuation, reaches the pressure of control output end 93 whereby;
A slide-bar 95 is opened when the solenoid valve 91 drives, the compressed gas 97 of the input terminal 93 will flow into A slide-bar 95, allow A
Slide-bar 95 generates displacement to the actuation down toward exhaust end 94, and so as to closing the exhaust end 94, gas at this time can be logical along inside
Road can then be such that B slide-bar 96 is displaced in open state downwards to B slide-bar 96, and when 97 pressure of compressed gas reaches default objects,
It allows compressed gas 97 by output end 93, reaches the purpose of output;
However, being please referred to again as shown in fig. 6, it is the practical structures of aforementioned control valve 90, it is seen that during it, when A is sliding
When axis 95 is displaced to down toward exhaust end 94, because A slide-bar 95 sequential can not first close exhaust end 94, then input terminal 92 is opened,
Make the gas of input terminal 92 while being circulated to B slide-bar 96 and exhaust end 94, will lead to compressed gas 97 and generate flooded conditions, and is attached
With the squeal-noise of high-decibel;
Furthermore a kind of control valve as disclosed by No. 6076880 specifications of Japanese Patent Publication No. is recorded by the control
It is provided with the primary side port for input pneumatic supply in valve, exports to the secondary side port of supply member and is connected to the primary side port
With the intercommunicating pore at secondary side port, and the valve chamber in be equipped with casing bore, can be slided wherein for piston, separately by one have taper
The valve shaft of portion and fitting portion cooperates the piston to be arranged, and after compressed air is entered by primary side port, then the valve shaft can be driven to carry out
Displacement, by tapered portion and fitting portion, further cooperates the intercommunicating pore, and so that the control valve is reached slowly starting control, this is supplied
To component, and simplify the ripe problem excessively complicated with structure;
Aforementioned control valve is located at valve shaft and piston set by valve seat inside or in external throttle structure, does not see
The related flow path of discharge can quickly be guided compressed air or separately have other special construction energy auxiliary exhausts by seeing to have, if therefore
Progress is being repeated several times in use, the air pressure that will cause inside valve seat can not be discharged for control valve, is leading to internal pressure
Power, which is filled, satisfies to maximum pressure, will make the pneumatic cylinder generate can not actuation the case where.
Summary of the invention
The present invention is that a kind of automatically controlled boosting type opens valve slowly, and major technique purpose is to utilize the suitable of the first slide-bar actuation
Sequence is first closed overflow port and is reached outside energy conservation, then opens a lateral pressure and enter main channel, more to be pressurized through-hole auxiliary control second
Slide-bar can input the compressed gas that the pilot hole circulates through the pressurization through-hole when the second slide-bar generates slow displacement upwards,
Make the second slide-bar fast offset, and secondary pressure is able to safety and quickly establishes.
Automatically controlled boosting type of the invention opens valve slowly, can supply the compressed gas that pneumatic supply supplies to pneumatic cylinder, by: one
Valve chamber is provided with and connects a lateral pressure of the pneumatic supply and the secondary pressure that connect pneumatic cylinder, and with a side pressure
The main channel that power is connected with secondary pressure, the valve chamber are more provided with the first slide-bar room and the second slide-bar room, and the first slide-bar
Interior is equipped with the first slide-bar, and the side wall of the first slide-bar room is equipped with the pilot hole for being connected to the top of the first slide-bar, and first is sliding
The bottom end of axis room is then equipped with overflow port, and this overflow port is connected to the main channel, and the second slide-bar is equipped in the second slide-bar room, and
It is equipped with through hole in vertical axial in second slide-bar, top, the bottom both ends of second slide-bar are respectively equipped with first piston and second
Piston, and third piston is equipped between this two-piston, and the first piston cooperates the top of the second slide-bar room, respectively first
The upper surface and lower end surface of piston, are each formed with a gas chamber and a pumping chamber, be further provided in the pumping chamber pressurization through-hole and
Be connected the pilot hole, can be by pilot hole stream when compressed gas, which flows into the second slide-bar by main channel, generates slow displacement upwards
Logical compressed gas is inputted via the pressurization through-hole, pushes first piston, the second slide-bar is enable to accelerate to be displaced again up.
Automatically controlled boosting type above-mentioned opens valve slowly, it is preferable that and the area of the third piston is greater than the area of the first piston, and
The area of the first piston is greater than the area of the second piston, when the third piston is by the compressed gas-driven, obtain so that this
Two slide-bars are driven by it the actuation for generating and shifting up.
Automatically controlled boosting type above-mentioned opens valve slowly, it is preferable that first slide-bar is driven when shifting up, then synchronous open should
Overflow port;And when first slide-bar is driven to bottom offset, then the close synchronously overflow port, passes through the first slide-bar sequencing
The switch of the overflow port is controlled, to obstruct the compressed gas while circulation and discharge.
Automatically controlled boosting type above-mentioned opens valve slowly, it is preferable that the needle-valve is arranged coaxially with second slide-bar, can be adjusted with rotating
The gap size of whole the noticeable degree needle-valve and second piston makes to reach certain flow and pressure by the compressed gas in the gap
Afterwards, which just has enough active forces, and second slide-bar is allowed to be displaced, and opens and closes the second lateral pressure, makes
Needle-valve can carry out controlling flow and pressure that the compressed gas passes through the second slide-bar room.
Automatically controlled boosting type above-mentioned opens valve slowly, it is preferable that the pumping chamber has further included: a gasket seal, is set to the increasing
The bottom end of pressure chamber can seal the first piston and pressurization through-hole, and after solenoid valve vents, which can smoothly seal the increasing
Through-hole is pressed, second slide-bar is made to return to original position.
Automatically controlled boosting type provided by the invention opens valve slowly, mainly for pneumatic cylinder in the process for gradually increasing flow and pressure
In, cooperate closing overflow port to reach outside energy conservation by the first slide-bar, more to be pressurized through-hole auxiliary the second slide-bar of control, second
When slide-bar generates slow displacement upwards, the compressed gas cooperation pressurization through-hole that pilot hole circulates is input to second by solenoid valve
The indoor pumping chamber of slide-bar can accelerate to drive the second slide-bar in the speed shifted up, and secondary pressure is able to safety and fast
Run-up is vertical, enables to switch over the consumed time and more quickly shortens.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of present pre-ferred embodiments.
Figure 1A is the partial enlargement diagram of Fig. 1 of present pre-ferred embodiments.
Fig. 2 is the continuous actuation of the first slide-bar of present pre-ferred embodiments in closed mode schematic diagram.
Fig. 2A is status diagram of the continuous actuation of the first slide-bar of present pre-ferred embodiments in unlatching.
Fig. 2 B is status diagram of the continuous actuation of the first slide-bar of present pre-ferred embodiments after unlatching.
Fig. 3 is the schematic diagram of the beginning actuation of present pre-ferred embodiments.
Fig. 3 A is the continuous actuation of the second slide-bar of present pre-ferred embodiments in closed mode schematic diagram.
Fig. 3 B is status diagram of the continuous actuation of the second slide-bar of present pre-ferred embodiments after unlatching.
Fig. 4 is the control loop of present pre-ferred embodiments in the schematic diagram for preparing state.
Fig. 4 A is the control loop of present pre-ferred embodiments in the schematic diagram for opening state slowly.
Fig. 4 B is the control loop of present pre-ferred embodiments in the schematic diagram of working condition.
Fig. 5 is the schematic diagram of well known structures.
Fig. 6 is the structural schematic diagram of well known structures.
Detailed description of the invention:
In Fig. 1-4B:
10... automatically controlled boosting type opens valve slowly
101... solenoid valve
102... input port
103... delivery outlet
11... valve chamber
12... main channel
13... the first slide-bar room
131... the first slide-bar
132... side wall
133... pilot hole
134... overflow port
14... the second slide-bar room
141... the second slide-bar
142... through hole
1421... gap
143... first piston
1431... upper surface
1432... lower end surface
144... gas chamber
145... pumping chamber
1451... being pressurized through-hole
1452... gasket seal
146... second piston
147... third piston
15... needle-valve
P1... a lateral pressure
P2... secondary pressure
T... pneumatic supply
TC... compressed gas
K... pneumatic cylinder
In Fig. 5-6:
90... control valve
91... solenoid valve
92... input terminal
93... output end
94... exhaust end
95...A slide-bar
96...B slide-bar
97... compressed gas
Specific embodiment
Generally according to the present invention, the optimal feasible embodiment, and cooperate schemaAfter figure is described in detail, in order to
Increase to understanding of the invention;
Please refer to figureShown, the present invention provides a kind of automatically controlled boosting type and opens valve 10 slowly, can supply pneumatic supply T
The compressed gas TC given is supplied to pneumatic cylinder K, and the structure which opens valve 10 slowly includes: a valve chamber 11, two sides
With connection pneumatic supply T a lateral pressure P1 and connection pneumatic cylinder K secondary pressure P2 and with a side pressure
The main channel 12 that power P1 is connected with secondary pressure P2, the top of this valve chamber 11 are additionally provided with a solenoid valve 101;
One first slide-bar 131 is set in aforementioned first slide-bar room 13, and the side wall 132 for being located at the first slide-bar room 13 is equipped with
One pilot hole 133, this pilot hole 133 is connected to the top of the first slide-bar room 13, and the bottom end of the first slide-bar room 13 is separately provided with
One overflow port 134, the overflow port 134 are connected with main channel 12, when the first slide-bar 131 is displaced with vertical axial, can make this
The actuation that overflow port 134 is opened or closed allows the compressed gas TC in main channel 12 to be able to be arranged by the overflow port 134
Put control;
One second slide-bar 141 is set in the second slide-bar above-mentioned room 14, this second slide-bar 141 is provided in vertical axial
One through hole 142, and it is equipped with a first piston 143 and a second piston 146 at the top of second slide-bar 141, bottom both ends respectively,
And a third piston 147 is further provided between first piston 143 and second piston 146, and the bottom end of the second slide-bar room 14 is more set
There is a needle-valve 15, which is arranged coaxially with second slide-bar 141, and relatively previously ripe opens valve arrangement slowly, so more can
Simplify procedure of processing and cost, the space optimization application being more conducive in structure, and with it is suitable, counterclockwise carry out rotation adjustment
When needle-valve 15, there is portion gap 1421 by the aperture of needle-valve 15 and second piston 146, it also can synchronously control second slide-bar
141 displacement opens and closes, and compressed gas TC is enable to be controlled by the flow of the second slide-bar room 14 with pressure;
The first piston 143 cooperate the second slide-bar room 14 top, respectively the upper surface of first piston 143 1431 and under
End face 1432 is each formed with a gas chamber 144 and a pumping chamber 145, and a pressurization through-hole 1451 is more provided in this pumping chamber 145
And the pilot hole 133 that is connected, when compressed gas TC by main channel 12 flow into the second slide-bar room 14, make the second slide-bar 141 generate
Upwards when slow displacement, is inputted by the compressed gas TC that pilot hole 133 circulates through the pressurization through-hole 1451, push first piston
143, it is driven by it second slide-bar 141 and generates acceleration displacement upwards again.
Wherein, when aforementioned pneumatic supply T input compressed gas TC enters to main channel 12 by first time lateral pressure P1, portion is had
Partial compression gas TC is flowed to using pilot hole 133 to the top of the first slide-bar room 13, and more specifically: the pilot hole 133 is from side
The connection of wall 132 is until be connected the input port 102 of solenoid valve 101 and the delivery outlet by the solenoid valve 101 above the valve chamber 11
103 are attached to the top of the first slide-bar room 13, by driving the solenoid valve 101 to be input in the first slide-bar room 13 to control
Compressed gas TC flow, and the input port 102 and the delivery outlet 103 are arranged using Different Plane, and be located at the delivery outlet 103 to
The pilot hole 133 of 13 this section of top of the first slide-bar room is additionally provided with a pressurization through-hole 1451, which, which is connected, passes to
In the pumping chamber 145;And the bottom end in the pumping chamber 145 is further provided with a gasket seal 1452, can seal the first piston 143 with
Be pressurized through-hole 1451, after the exhaust of solenoid valve 101, first piston 143 can smooth sealing type pressure through-hole 1451, make the second slide-bar
141 return to original position.
When 131 compressed gas TC of the first slide-bar promotion is downward, keep the overflow port 134 in closed state, this compressed gas
Body TC then circulates along with main channel 12 toward the second slide-bar room 14, and there is portion in aforementioned needle-valve 15 and the aperture of second piston 141
Subdivided gap 1421 must pass through the compression in gap 1421 after compressed gas TC enters gas chamber 144 by through hole 142 to needle-valve 15
When gas TC reaches certain flow and pressure, it will push third piston 147, shift up the second slide-bar 141 slowly;
And the displacement actuation of the second slide-bar 141, to enable foregoing description feature of the invention to be understood in detail, therefore assume the
Two 141 whole sections of slide-bar displacement strokes are 5 units, when initial 0 unit to 2 unit, are advanced when for most slow speed;And works as and be more than
It is then to start to accelerate to 5 units to have carried out journey stroke after 2 units;However, the ripe gas flow and pressure being easy with structure because of output
Deficiency, and 0 unit to 2 units is caused to carry out more slow or already exceed 2 units, and it is sliding still to can not be successfully driving second
Axis 141 carries out subsequent displacement stroke.
Figure is please referred to againIt is shown, when solenoid valve 101 is able to push first slide-bar from the output of delivery outlet 103
When 131 compressed gas TC flow, it will also pass through 1451 transport portion compressed gas TC of the pressurization through-hole to the pumping chamber simultaneously
In 145, and with area for, 143 > second piston of third 147 > first piston of piston 146, so, compressed gas TC passes through
When aforementioned gap 1421 is accumulate to certain flow and pressure to secondary pressure P2, push third piston 147 upward, into
And the second slide-bar 141 is driven slowly to shift up in the second slide-bar room 14, at this point, pressurization through-hole 1451 also will be by first piston
143 lower end surface 1432 supplies aforementioned compression gas TC to push first piston 143, and the second slide-bar 141 is made to shift up rate
Accelerated, allow the stroke being slowly displaced that can more be rapidly completed whereby, solve whereby it is ripe with structure because of flow and insufficient pressure,
And the problem of causing the second slide-bar 141 to be displaced slowly with can not be successfully driving.
In conclusion the automatically controlled boosting type of the present invention opens valve 10 slowly, input compressed gas TC is being gradually increased for pneumatic cylinder K
During, the structure of the overflow port 134 can be switched by the first slide-bar 131, and then solve ripe overflow and noise with structure
Problem, and the pressurization through-hole 1451 being connected using aforementioned pilot hole 133 allow the compressed gas TC of input to be able to accelerate auxiliary the
The rate of displacement of two slide-bars 141, enables overall structure more smoothly to be operated.
Claims (5)
1. a kind of automatically controlled boosting type opens valve slowly, the compressed gas that pneumatic supply supplies can be supplied to pneumatic cylinder, include: a valve
Room, have connect the pneumatic supply a lateral pressure, connect the pneumatic cylinder secondary pressure and with a lateral pressure with should
The main channel that secondary pressure is connected, the valve chamber are further provided with one first slide-bar room and one second slide-bar room;One first slide-bar,
In the first slide-bar room, the side wall of the first slide-bar room is equipped with a pilot hole, which is connected to the first slide-bar room
Top, and the bottom end of the first slide-bar room be equipped with an overflow port, which is connected with the main channel, when the first slide-bar
When being displaced with vertical axial, the overflow port can be made to carry out switch actuation;One second slide-bar is set in the second slide-bar room, this
Two slide-bars are equipped with a through hole in vertical axial, and are equipped with a first piston and one at the top of second slide-bar, bottom both ends respectively
Second piston, and a third piston is further provided between the first piston and the second piston, and the bottom end of the second slide-bar room is more
Equipped with a needle-valve, which cooperates the top of the second slide-bar room, respectively in the upper surface of the first piston and lower end surface
It is each formed with a gas chamber and a pumping chamber;It is characterized by: being further provided with a pressurization of the pilot hole that is connected in the pumping chamber
Through-hole can pass through the pilot hole stream when the compressed gas, which flows into second slide-bar by the main channel, generates slow displacement upwards
Logical compressed gas is inputted through the pressurization through-hole, pushes first piston, second slide-bar is enable to accelerate to be displaced again up.
2. automatically controlled boosting type according to claim 1 opens valve slowly, which is characterized in that the area of the third piston be greater than this
The area of one piston, and the area of the first piston is greater than the area of the second piston, when the third piston is by the compressed gas
Driving obtains so that second slide-bar is driven by it the actuation for generating and shifting up.
3. automatically controlled boosting type according to claim 1 opens valve slowly, which is characterized in that first slide-bar, which is driven, to be shifted up
When, then it is synchronous to open the overflow port;And when first slide-bar is driven to bottom offset, then the close synchronously overflow port, passes through
First slide-bar sequencing controls the switch of the overflow port, to obstruct the compressed gas while circulation and discharge.
4. automatically controlled boosting type according to claim 1 opens valve slowly, which is characterized in that the needle-valve is with second slide-bar in coaxial
Setting can make to reach by the compressed gas in the gap to rotate the gap size for adjusting the noticeable degree needle-valve and second piston
To after certain flow and pressure, which just has enough active forces, and second slide-bar is allowed to be displaced, and opens and close
The second lateral pressure is closed, makes needle-valve that can carry out controlling flow and pressure that the compressed gas passes through the second slide-bar room.
5. automatically controlled boosting type according to claim 1 opens valve slowly, which is characterized in that the pumping chamber has further included: a sealing
Gasket is set to the bottom end of the pumping chamber, can seal the first piston and pressurization through-hole, after solenoid valve vents, first work
Plug can smoothly seal the pressurization through-hole, and second slide-bar is made to return to original position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810015369.8A CN110017393B (en) | 2018-01-08 | 2018-01-08 | Electric control boosting type slow-start valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810015369.8A CN110017393B (en) | 2018-01-08 | 2018-01-08 | Electric control boosting type slow-start valve |
Publications (2)
Publication Number | Publication Date |
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CN110017393A true CN110017393A (en) | 2019-07-16 |
CN110017393B CN110017393B (en) | 2024-04-12 |
Family
ID=67187462
Family Applications (1)
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CN201810015369.8A Active CN110017393B (en) | 2018-01-08 | 2018-01-08 | Electric control boosting type slow-start valve |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB773142A (en) * | 1951-12-07 | 1957-04-24 | Electraulic Presses Ltd | Improvements in and relating to fluid-pressure actuated bye-pass valves |
US4706624A (en) * | 1986-06-10 | 1987-11-17 | The Jacobs Manufacturing Company | Compression release retarder with valve motion modifier |
CN1208141A (en) * | 1997-08-11 | 1999-02-17 | 胡斯可国际股份有限公司 | Pilot solenoid control valve and hydraulic control system using same |
CN104321492A (en) * | 2012-04-09 | 2015-01-28 | 劳伦斯·L·弗拉姆 | Pressure limiting valve and alternative method for testing a backflow preventer using the same |
TW201518629A (en) * | 2013-11-05 | 2015-05-16 | Koganei Ltd | Control valve |
CN105518310A (en) * | 2013-09-02 | 2016-04-20 | Smc株式会社 | Fluid control valve |
CN207864715U (en) * | 2018-01-08 | 2018-09-14 | 上海气立可气动设备有限公司 | Automatically controlled boosting type opens valve slowly |
-
2018
- 2018-01-08 CN CN201810015369.8A patent/CN110017393B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB773142A (en) * | 1951-12-07 | 1957-04-24 | Electraulic Presses Ltd | Improvements in and relating to fluid-pressure actuated bye-pass valves |
US4706624A (en) * | 1986-06-10 | 1987-11-17 | The Jacobs Manufacturing Company | Compression release retarder with valve motion modifier |
CN1208141A (en) * | 1997-08-11 | 1999-02-17 | 胡斯可国际股份有限公司 | Pilot solenoid control valve and hydraulic control system using same |
CN104321492A (en) * | 2012-04-09 | 2015-01-28 | 劳伦斯·L·弗拉姆 | Pressure limiting valve and alternative method for testing a backflow preventer using the same |
CN105518310A (en) * | 2013-09-02 | 2016-04-20 | Smc株式会社 | Fluid control valve |
TW201518629A (en) * | 2013-11-05 | 2015-05-16 | Koganei Ltd | Control valve |
CN207864715U (en) * | 2018-01-08 | 2018-09-14 | 上海气立可气动设备有限公司 | Automatically controlled boosting type opens valve slowly |
Also Published As
Publication number | Publication date |
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CN110017393B (en) | 2024-04-12 |
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