CN106080649A - A kind of multifunctional emergency valve - Google Patents
A kind of multifunctional emergency valve Download PDFInfo
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- CN106080649A CN106080649A CN201610644795.9A CN201610644795A CN106080649A CN 106080649 A CN106080649 A CN 106080649A CN 201610644795 A CN201610644795 A CN 201610644795A CN 106080649 A CN106080649 A CN 106080649A
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- train pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H11/00—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H11/06—Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of multifunctional emergency valve, emergency piston composition it is provided with within valve body forms, described emergency piston composition is connected with the emergency piston bar being provided with central through hole, urgent sandwich valve it is provided with below described emergency piston bar, it is provided with stable spring between described emergency piston composition and urgent valve seat, described urgent sandwich valve is arranged on vent valve guide post upper end, described vent valve guide post is socketed in and push rod top, it is socketed with, in described push rod periphery, the valve spring that leaks informaton, below described push rod, is provided with gas supply part sandwich valve.The present invention is in addition to having ordinary emergency valve and implementing emergency exhaust effect according to train pipe decompression rate, also have while emergency exhaust, make blast main import link up, after reset with blast main outlet gas circuit, blast main airway is closed, and blast main outlet is linked up with air；After train pipe and emergency chamber are charged to level pressure, when pilot port communicate with air and flux more than certain limit time, make the function of pop valve generation emergency exhaust effect.
Description
Technical field
The invention belongs to rolling stock technical field, particularly to a kind of rolling stock multifunctional emergency valve.
Background technology
The pop valve of existing rolling stock only has the effect implementing emergency exhaust according to train pipe decompression rate, promptly
During air draft, it is impossible to realize blast main import and link up with blast main outlet gas circuit, and after resetting, blast main airway is closed, always
The function that wind tube outlet and air are linked up, and after train pipe and emergency chamber are charged to level pressure, communicate with air when pilot port and
When flux is more than certain limit, it is impossible to make anxious valve generation emergency exhaust effect.
Summary of the invention
It is an object of the invention to: for the problem of above-mentioned existence, it is provided that one possesses general pop valve stability, urgent
Outside sensitivity function, also there is more multi-functional pop valve.
The technical scheme is that and be achieved in that: a kind of multifunctional emergency valve, forming including valve body, its feature exists
In: being provided with emergency piston composition within described valve body forms, described emergency piston forms and is provided with the urgent of central through hole
Piston rod connects, and is provided with radial hole, the upper chambers of described emergency piston composition respectively in the upper and lower part of described emergency piston bar
Room connects with emergency chamber, and the lower chamber of described emergency piston composition connects with train pipe, sets below described emergency piston bar
Being equipped with urgent sandwich valve, described urgent sandwich valve is arranged at the valve port of urgent valve seat, at described emergency piston composition with urgent
Being provided with stable spring between valve seat, described urgent sandwich valve is arranged on vent valve guide post upper end, described vent valve guide post set
It is connected on and push rod top, is socketed with the valve spring that leaks informaton, described vent valve guide post lower chamber and pilot port in described push rod periphery
Connection, is provided with gas supply part sandwich valve below described push rod, and described gas supply part sandwich valve is arranged at the valve port for air-casing,
Being provided with guide's valve spring below described gas supply part sandwich valve, the lower chamber of described gas supply part sandwich valve is with blast main import even
Logical, the upper chamber of described gas supply part sandwich valve and blast main outlet, the described blast main outlet centre bore by push rod
And radial hole communicates with air.
Multifunctional emergency valve of the present invention, its described valve body composition include upper cover, urgent valve body, leak informaton valve gap and
Supply lid, the upper and lower end of described urgent valve body is tightly connected with upper cover and the valve gap that leaks informaton respectively, and described supply covers and leaks informaton
Valve gap lower end is tightly connected.
Multifunctional emergency valve of the present invention, it is on described urgent valve body and train pipe connectivity part is provided with filter dirt
Net.
Multifunctional emergency valve of the present invention, its described emergency piston composition includes upper piston, lower piston and template,
The medial extremity of described template is crimped between upper piston and lower piston, and its outboard end is crimped between upper cover and urgent valve body, institute
State upper piston and lower piston is socketed on emergency piston bar and is assembled into integrative-structure, described by nut and emergency piston bar
Emergency piston bar upper surface is provided with sealing ring.
Multifunctional emergency valve of the present invention, its described pop valve has inflation position, service application position, emergency position
And guide's emergency position；
A, inflation position: when train inflation is alleviated, pop valve is in inflation position, the pressure air of train pipe and stablize spring first will be tightly
Anxious piston composition is pressed on and covers, owing to the sealing ring on emergency piston bar top is closely connected with upper cover, thus on emergency piston bar
The axial centre aperture of end cuts off, and train tube pressure air can only pass through emergency piston bar lower center aperture, and Zai Jing center leads to
Hole vertical restriction shrinkage cavity, after radially constrain shrinkage cavity to emergency piston composition upper chamber and to promptly through emergency piston bar top
Room is inflated；Train tube pressure air also in valve body secret tunnel arrive on the downside of vent valve guide post, negative function is at urgent sandwich valve
On pressure, make urgent sandwich valve be closed together with the valve spring that leaks informaton；Emergency chamber pressure is charged to and train tube pressure phase
After Deng, emergency piston forms under stable spring effect, still keeps top extreme position；Total wind arrives gas supply part through blast main import
On the downside of sandwich valve, the pressure of total wind and guide's valve spring makes gas supply part sandwich valve compress the valve port for air-casing, and total wind waits at this；Always
Wind tube outlet is connected with air with radial hole through the centre bore of push rod；
B, service application position: when service braking implemented by train, and train pipe reduces pressure with service braking speed, on the downside of emergency piston composition
Train tube pressure reduce, first both sides produce less pressure differential, overcome the counter-force of stable spring, emergency piston composition somewhat under
Moving, emergency piston bar upper end center hole is open, it is ensured that emergency chamber pressure air is inverse to train pipe through limit hole, emergency piston bar center
The speed of stream keeps consistent with train pipe decompression rate, and emergency piston composition both sides no longer form bigger pressure differential, promptly live
Plug composition is suspended in this position, does not continues to mobile；After train pipe decompression stops, emergency chamber pressure upstream to after equal with train pipe,
No longer adverse current, emergency piston composition returns to again extreme position under the effect of stable spring；Gas supply part remains in that inflation position
Time state；
C, emergency position: when train pipe drastically declines with brake hard speed, emergency chamber pressure air is first by service braking
Path carry out adverse current, but adverse current speed does not reaches the rate of pressure reduction of train pipe, is formed bigger in emergency piston composition both sides
Pressure reduction, emergency piston composition continues to move down, and first pushes urgent sandwich valve open, opens the train pipe path through pop valve row's air, row
Car pipe pressure reduces rapidly, then drives vent valve guide post and push rod to move down, and pushes gas supply part sandwich valve, the rubber on push rod open
Cushion rubber moves down the path closing blast main outlet row's air, total wind valve port through opening, and enters blast main outlet, performs next step
Control function；After emergency chamber pressure drains, each parts pilot valve spring, leak informaton valve spring and stablize spring effect under reset, tightly
Anxious valve returns to inflate position；
D, guide's emergency position: when train pipe and emergency chamber are all charged to level pressure, pilot port communicates with air, vent valve guides
Pressure air below bar is discharged rapidly towards air, owing in valve body, secret tunnel aperture is limited, mends wind speed between train pipe and pilot port
Rate is less than air draft speed, makes the urgent upper and lower both sides of sandwich valve form pressure differential, and this pressure differential promotes urgent sandwich valve to leave sealing
Face, is originally in the train tube pressure air of packing state from the rapid air draft of the sealing surface opened, so that train pipe and urgent
Forming huge pressure reduction between room, pop valve enters emergency position.
The external train pipe of the present invention, emergency chamber, pilot port, blast main import and blast main five pipelines of outlet, at row
All can normally work when car pipe level pressure 500kPa or 600kPa, this this pop valve subtracts according to train pipe except having ordinary emergency valve
Pressure speed is implemented outside emergency exhaust effect, additionally it is possible to have while emergency exhaust, makes blast main import export with blast main
Gas circuit is linked up, and after resetting, blast main airway is closed, and blast main outlet is linked up with air；Fill at train pipe and emergency chamber
To level pressure, when pilot port communicate with air and flux more than certain limit time, make the merit of pop valve generation emergency exhaust effect
Energy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of emergency piston composition in the present invention.
Fig. 3 is the present invention structural representation when inflating position.
Fig. 4 is the present invention structural representation when service application position.
Fig. 5 is the present invention structural representation when emergency position.
Fig. 6 is the present invention structural representation when guide's emergency position.
Labelling in figure: 1a is upper cover, and 1b is urgent valve body, and 1c is the valve gap that leaks informaton, and 1d is supply lid, and 2 is emergency piston group
Becoming, 2a is upper piston, and 2b is lower piston, and 2c is template, and 2d is nut, and 2e is sealing ring, and 3 is emergency piston bar, and 4 is urgent
Room, 5 is train pipe, and 6 is urgent sandwich valve, and 7 is urgent valve seat, and 8 for stablize spring, and 9 is vent valve guide post, and 10 is push rod, 11
For the valve spring that leaks informaton, 12 is pilot port, and 13 is gas supply part sandwich valve, and 14 for for air-casing, and 15 is guide's valve spring, and 16 enter for blast main
Mouthful, 17 export for blast main, and 18 is dirt filtrating screen.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
As illustrated in fig. 1 and 2, a kind of multifunctional emergency valve, form including valve body, described valve body composition includes upper cover 1a, tight
Anxious valve body 1b, leak informaton valve gap 1c and supply lid 1d, the upper and lower end of described urgent valve body 1b respectively with upper cover 1a and the valve gap that leaks informaton
1c is tightly connected, and described supply lid 1d is tightly connected with valve gap 1c lower end of leaking informaton.
Wherein, within described valve body forms, be provided with emergency piston composition 2, described emergency piston composition 2 be provided with
The emergency piston bar 3 of heart through hole connects, and described emergency piston composition 2 includes upper piston 2a, lower piston 2b and template 2c, described
The medial extremity of template 2c is crimped between upper piston 2a and lower piston 2b, its outboard end be crimped on upper cover 1a and urgent valve body 1b it
Between, described upper piston 2a and lower piston 2b is socketed on emergency piston bar 3 and is assembled into one by nut 2d with emergency piston bar 3
Body structure, is provided with sealing ring 2e in described emergency piston bar 3 upper surface.
Radial hole, the upper chambers of described emergency piston composition 2 it is provided with respectively in the upper and lower part of described emergency piston bar 3
Room connects with emergency chamber 4, and the lower chamber of described emergency piston composition 2 connects with train pipe 5, on described urgent valve body 1b,
Train pipe 5 connectivity part is provided with dirt filtrating screen 18, below described emergency piston bar 3, is provided with urgent sandwich valve 6, described promptly
Sandwich valve 6 is arranged at the valve port of urgent valve seat 7, is provided with stable spring between described emergency piston composition 2 and urgent valve seat 7
8, described urgent sandwich valve 6 is arranged on vent valve guide post 9 upper end, and described vent valve guide post 9 is socketed in and push rod 10 top,
Be socketed with the valve spring 11 that leaks informaton in described push rod 10 periphery, described vent valve guide post 9 lower chamber connects with pilot port 12, in institute
Stating and be provided with gas supply part sandwich valve 13 below push rod 10, described gas supply part sandwich valve 13 is arranged at the valve port for air-casing 14,
Being provided with guide's valve spring 15 below described gas supply part sandwich valve 13, the lower chamber of described gas supply part sandwich valve 13 is entered with blast main
Mouth 16 connection, the upper chamber of described gas supply part sandwich valve 13 connects with blast main outlet 17, and described blast main outlet 17 is passed through
Centre bore and the radial hole of push rod 10 communicate with air.
The pop valve of the present invention has inflation position, service application position, emergency position and guide's emergency position.
A, inflation position: as it is shown on figure 3, when train inflation is alleviated, pop valve is in inflation position, and the pressure of train pipe 5 is empty
Gas and stablize spring 8 and first emergency piston composition 2 is pressed on upper cover 1a, owing to the sealing ring 2e on emergency piston bar 3 top is with upper
1a is closely connected for lid, thus the axial centre aperture of emergency piston bar 3 upper end cuts off, and train pipe 5 pressure air can only be lived by urgent
Stopper rod 3 lower center aperture, then through central through hole vertical restriction shrinkage cavity, after radially constrain shrinkage cavity through emergency piston bar 3 top
Forming 2 upper chamber to emergency piston and inflate to emergency chamber 4, the shrinkage cavity that radially constrains of emergency piston bar upper end controls inflation speed
Degree, it is to avoid emergency chamber inflation is too fast and causes unexpected brake hard；Train pipe 5 pressure air also in valve body secret tunnel arrive put
On the downside of air-valve guide post 9, negative function pressure on urgent sandwich valve 6, make at urgent sandwich valve 6 together with the valve spring 11 that leaks informaton
In closed mode；Emergency chamber 4 pressure be charged to equal with train pipe 5 pressure after, emergency piston composition 2 stable spring 8 act under, still
Keep top extreme position；Total wind arrives on the downside of gas supply part sandwich valve 13 through blast main import 16, total wind and guide's valve spring 15
Pressure makes gas supply part sandwich valve 13 compress the valve port for air-casing 14, and total wind waits at this；Blast main outlet 17 is in push rod 10
Central hole is connected with air with radial hole.
B, service application position: as shown in Figure 4, when service braking implemented by train, and train pipe 5 reduces pressure with service braking speed,
Train tube pressure on the downside of emergency piston composition 2 reduces, and first both sides produce less pressure differential, overcome the counter-force of stable spring 8,
Emergency piston composition 2 somewhat moves down, and emergency piston bar 3 upper end center hole is open, it is ensured that emergency chamber 4 pressure air is through emergency piston
Limit hole, bar 3 center keeps consistent to the speed of train pipe 5 adverse current with train pipe 5 decompression rate, and emergency piston forms 2 both sides no longer
Forming bigger pressure differential, emergency piston composition 2 is suspended in this position, does not continues to mobile；After train pipe 5 decompression stops, emergency chamber 4
Pressure upstream is to after equal with train pipe 5, and no longer adverse current, emergency piston composition 2 returns to again pole under the effect of stable spring 8
End position；Gas supply part remains in that state during inflation position.
C, emergency position: as it is shown in figure 5, when train pipe drastically declines with brake hard speed, emergency chamber 4 pressure is empty
Gas first carries out adverse current by the path of service braking, but adverse current speed does not reaches the rate of pressure reduction of train pipe 5, forms at emergency piston
2 both sides form bigger pressure reduction, and emergency piston composition 2 continues to move down, and first pushes urgent sandwich valve 6 open, opens train pipe 5 through promptly
The path of valve row's air, train pipe 5 pressure reduces rapidly, then drives vent valve guide post 9 and push rod 10 to move down, and pushes confession open
Gas portion sandwich valve 13, the rubber ring on push rod 10 moves down closedown blast main and exports the path of 17 row's air, total wind valve through opening
Mouthful, enter blast main outlet 17, perform next step and control function；Owing to the centre bore of emergency piston bar lower end is by urgent sandwich valve
Blocking, emergency chamber pressure air can only enter train pipe from the radial direction shrinkage cavity of urgent piston-rod lower end, finally arranges to air, radially
Shrinkage cavity control emergency chamber aerofluxus time, after emergency chamber 4 pressure drains, each parts pilot valve spring 15, leak informaton valve spring 11 with
And stablize reset under the effect of spring 8, say, that in the certain time after brake hard, pop valve returns to inflate position.
D, guide's emergency position: as shown in Figure 6, when train pipe 5 and emergency chamber 4 are all charged to level pressure, pilot port 12 with
Air communicates, and the pressure air below vent valve guide post 9 is discharged rapidly towards air, owing in valve body, secret tunnel aperture is limited, and train
Mend airspeed between pipe 5 and pilot port 12 and be less than air draft speed, make urgent sandwich valve about 6 both sides form pressure differential, this pressure
Difference promotes urgent sandwich valve 6 to leave sealing surface, and train pipe 5 pressure air being originally in packing state is fast from the sealing surface opened
Speed air draft, so that forming huge pressure reduction between train pipe 5 and emergency chamber 4, pop valve enters emergency position.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (5)
1. a multifunctional emergency valve, forms including valve body, it is characterised in that: within described valve body forms, it is provided with emergency piston
Composition (2), described emergency piston composition (2) is connected, at described emergency piston with the emergency piston bar (3) being provided with central through hole
The upper and lower part of bar (3) is provided with radial hole respectively, and the upper chamber of described emergency piston composition (2) connects with emergency chamber (4),
The lower chamber of described emergency piston composition (2) connects with train pipe (5), is provided with tight in described emergency piston bar (3) lower section
Anxious sandwich valve (6), described urgent sandwich valve (6) is arranged at the valve port of urgent valve seat (7), forms (2) at described emergency piston
And being provided with stable spring (8) between urgent valve seat (7), described urgent sandwich valve (6) is arranged on vent valve guide post (9) upper end,
Described vent valve guide post (9) is socketed in and push rod (10) top, is socketed with the valve spring that leaks informaton (11) in described push rod (10) periphery,
Described vent valve guide post (9) lower chamber connects with pilot port (12), and described push rod (10) lower section is provided with gas supply part folder
Core valve (13), described gas supply part sandwich valve (13) is arranged at the valve port for air-casing (14), described gas supply part sandwich valve (13)
Lower section is provided with guide's valve spring (15), and the lower chamber of described gas supply part sandwich valve (13) connects with blast main import (16), institute
The upper chamber stating gas supply part sandwich valve (13) connects with blast main outlet (17), and described blast main outlet (17) passes through push rod
(10) centre bore and radial hole communicate with air.
Multifunctional emergency valve the most according to claim 1, it is characterised in that: described valve body composition includes upper cover (1a), tight
Anxious valve body (1b), the valve gap that leaks informaton (1c) and supply lid (1d), the upper and lower end of described urgent valve body (1b) respectively with upper cover (1a)
Being tightly connected with the valve gap that leaks informaton (1c), described supply lid (1d) is tightly connected with the valve gap that leaks informaton (1c) lower end.
Multifunctional emergency valve the most according to claim 2, it is characterised in that: the upper and train described urgent valve body (1b)
Pipe (5) connectivity part is provided with dirt filtrating screen (18).
4. according to the multifunctional emergency valve described in claim 1,2 or 3, it is characterised in that: described emergency piston composition (2) includes
Upper piston (2a), lower piston (2b) and template (2c), the medial extremity of described template (2c) is crimped on upper piston (2a) and lower work
Between plug (2b), its outboard end is crimped between upper cover (1a) and urgent valve body (1b), described upper piston (2a) and lower piston
(2b) be socketed in emergency piston bar (3) upper and be assembled into integrative-structure by nut (2d) and emergency piston bar (3), described tightly
Anxious piston rod (3) upper surface is provided with sealing ring (2e).
Multifunctional emergency valve the most according to claim 4, it is characterised in that: described pop valve has inflation position, conventional system
Dynamic position, emergency position and guide's emergency position；
A, inflation position: when train inflation is alleviated, pop valve is in inflation position, the pressure air of train pipe (5) and stable spring (8)
First emergency piston composition (2) is pressed on upper cover (1a), due to sealing ring (2e) and the upper cover on emergency piston bar (3) top
(1a) closely connected, thus the axial centre aperture of emergency piston bar (3) upper end cuts off, train pipe (5) pressure air can only be by tight
Anxious piston rod (3) lower center aperture, then through central through hole vertical restriction shrinkage cavity, after through emergency piston bar (3) top radially
Limit shrinkage cavity to emergency piston composition (2) upper chamber and to inflate to emergency chamber (4)；Train pipe (5) pressure air is also through valve body
Interior secret tunnel arrives vent valve guide post (9) downside, and negative function pressure on urgent sandwich valve (6), with the valve spring that leaks informaton (11)
Urgent sandwich valve (6) is made to be closed together；Emergency chamber (4) pressure be charged to equal with train pipe (5) pressure after, promptly live
Plug composition (2), under stable spring (8) acts on, still keeps top extreme position；Total wind arrives gas supply part through blast main import (16)
Sandwich valve (13) downside, the pressure of total wind and guide's valve spring (15) makes gas supply part sandwich valve (13) compress the valve for air-casing (14)
Mouthful, total wind waits at this；Blast main outlet (17) is connected with air with radial hole through the centre bore of push rod (10)；
B, service application position: when service braking implemented by train, and train pipe (5) reduces pressure with service braking speed, and emergency piston forms
(2) train tube pressure of downside reduces, and first both sides produce less pressure differential, overcome the counter-force of stable spring (8), emergency piston
Composition (2) somewhat moves down, and emergency piston bar (3) upper end center hole is open, it is ensured that emergency chamber (4) pressure air is through emergency piston bar
(3) limit hole in center keeps consistent to the speed of train pipe (5) adverse current with train pipe (5) decompression rate, emergency piston composition (2) two
Side no longer forms bigger pressure differential, and emergency piston composition (2) is suspended in this position, does not continues to mobile；Train pipe (5) decompression stops
After, emergency chamber (4) pressure upstream is to after equal with train pipe (5), and no longer adverse current, emergency piston composition (2) is at stable spring (8)
Extreme position is returned to again under effect；Gas supply part remains in that state during inflation position；
C, emergency position: when train pipe drastically declines with brake hard speed, emergency chamber (4) pressure air is first by conventional system
Dynamic path carries out adverse current, but adverse current speed does not reaches the rate of pressure reduction of train pipe (5), in emergency piston composition (2) both sides shape
The pressure reduction of Cheng Geng great, emergency piston composition (2) continues to move down, and first pushes urgent sandwich valve (6) open, opens train pipe (5) through urgent
The path of valve row's air, train pipe (5) pressure reduces rapidly, then drives vent valve guide post (9) and push rod (10) to move down, and
Pushing gas supply part sandwich valve (13) open, the rubber ring on push rod (10) moves down the path closing blast main outlet (17) row's air, always
The wind valve port through opening, enters blast main outlet (17), performs next step and controls function；After emergency chamber (4) pressure drains, each portion
Part resets under pilot valve spring (15), the valve spring that leaks informaton (11) and the effect stablizing spring (8), and pop valve returns to inflate position；
D, guide's emergency position: when train pipe (5) and emergency chamber (4) are all charged to level pressure, pilot port (12) communicates with air,
Vent valve guide post (9) lower section pressure air be discharged rapidly towards air, owing in valve body, secret tunnel aperture is limited, train pipe (5) and
Mend airspeed between pilot port (12) and be less than air draft speed, make urgent sandwich valve (6) both sides up and down form pressure differential, this pressure differential
Promote urgent sandwich valve (6) to leave sealing surface, be originally in train pipe (5) pressure air of packing state from the sealing surface opened
Air draft rapidly, so that forming huge pressure reduction between train pipe (5) and emergency chamber (4), pop valve enters emergency position.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610644795.9A CN106080649B (en) | 2016-08-09 | 2016-08-09 | A kind of multifunctional emergency valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644795.9A CN106080649B (en) | 2016-08-09 | 2016-08-09 | A kind of multifunctional emergency valve |
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| CN106080649A true CN106080649A (en) | 2016-11-09 |
| CN106080649B CN106080649B (en) | 2018-03-02 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106347341A (en) * | 2016-11-16 | 2017-01-25 | 眉山中车制动科技股份有限公司 | Main control mechanism for maintaining pressure of distribution valve stable when distributionvalve brakes pressure-holding position |
| CN108725416A (en) * | 2018-05-30 | 2018-11-02 | 眉山中车制动科技股份有限公司 | One kind subtracting valve rod suitable for the small pressure m air slide valve of passenger train with office |
| CN111023936A (en) * | 2019-12-18 | 2020-04-17 | 眉山中车制动科技股份有限公司 | Method for measuring critical dimension of performance of emergency valve |
| CN111547032A (en) * | 2020-05-21 | 2020-08-18 | 中车哈尔滨车辆有限公司 | Emergency valve maintenance control method |
| CN112644446A (en) * | 2020-12-22 | 2021-04-13 | 眉山中车制动科技股份有限公司 | Emergency braking accelerating exhaust valve |
| WO2023217296A1 (en) * | 2022-05-13 | 2023-11-16 | 中车齐齐哈尔车辆有限公司 | Emergency valve |
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| CN103043074A (en) * | 2012-12-24 | 2013-04-17 | 青岛四方车辆研究所有限公司 | Emergency valve for high-speed motor train units and urban rail transit vehicles |
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| CN106347341A (en) * | 2016-11-16 | 2017-01-25 | 眉山中车制动科技股份有限公司 | Main control mechanism for maintaining pressure of distribution valve stable when distributionvalve brakes pressure-holding position |
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| CN111023936A (en) * | 2019-12-18 | 2020-04-17 | 眉山中车制动科技股份有限公司 | Method for measuring critical dimension of performance of emergency valve |
| CN111547032A (en) * | 2020-05-21 | 2020-08-18 | 中车哈尔滨车辆有限公司 | Emergency valve maintenance control method |
| CN111547032B (en) * | 2020-05-21 | 2022-08-05 | 中车哈尔滨车辆有限公司 | Emergency valve maintenance control method |
| CN112644446A (en) * | 2020-12-22 | 2021-04-13 | 眉山中车制动科技股份有限公司 | Emergency braking accelerating exhaust valve |
| WO2023217296A1 (en) * | 2022-05-13 | 2023-11-16 | 中车齐齐哈尔车辆有限公司 | Emergency valve |
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