CN105905096A - Gas combination control valve used for hydraulic retarder - Google Patents
Gas combination control valve used for hydraulic retarder Download PDFInfo
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- CN105905096A CN105905096A CN201610412897.8A CN201610412897A CN105905096A CN 105905096 A CN105905096 A CN 105905096A CN 201610412897 A CN201610412897 A CN 201610412897A CN 105905096 A CN105905096 A CN 105905096A
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- main valve
- valve
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- plug
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/36—Other control devices or valves characterised by definite functions
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- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The invention discloses a gas combination control valve used for a hydraulic retarder and belongs to the field of control valves. A two position three-way valve and a plurality of pilot valves are installed on a main valve body of the gas combination control valve. The main valve body is provided with main valve cores in one-to-one correspondence with the pilot valves. The main valve cores correspond to sealing plugs. The preset pressure is adjusted through pressure adjusting screws, and thus the sealing plugs can be disengaged from the main valve cores under a certain pressure. On the one hand, pressure relief of the main valve cores is achieved, and on the other hand, gas sources are turned off by the sealing plugs, accordingly, the gas pressure can be lowered to the set value, and pressure balance is formed. The different main valve cores can be adjusted through the pressure adjusting screws to form different working pressure so that switching can be conducted conveniently. The gas combination control valve used for the hydraulic retarder is high in response speed, good in repeat accuracy and pressure maintaining performance, convenient to operate and reliable in working, can be used for all kinds of vehicle braking systems, especially suitable for large overloading vehicles and can adapt to long-distance and large-slope braking.
Description
Technical field
The present invention relates to a kind of control valve, particularly to a kind of control valve on Retarder.
Background technology
In prior art, using and have a kind of Retarder in brake and drive system for vehicle with tow, it is generally used for that haulage vehicle, heavy truck, other hydraulic power vehicles etc. are large-scale or on heavy-duty vehicle.At present, European and American developed countries use commonplace, and domestic in terms of common truck, application is also in the starting stage, and in terms of hydraulic power vehicle, possible application is the most, and it is different from general drum and stops and disc brake, and it is to be directly mounted at automobile gearbox output shaft.Utilize fluid damping power to provide the retarding moment to output shaft of gear-box, can persistently provide brake torque when heavy-duty vehicle long descending section.
For providing corresponding damping force, need the flow using combination of gases control valve to control to enter Retarder working area liquid, change liquid damping force by flow thus change retarding moment.The liquid measure entering working area is the most, and car speed the fastest (i.e. Retarder rotor speed is the highest) then retarding moment is the biggest, otherwise the least.It implements and is: combination of gases control valve promotes a spool in Retarder to be in diverse location by the pressure (being equivalent to proportional pressure valve) that different gear outputs are different, at diverse location, this spool determines that different fluid floies (being equivalent to proportional flow control valve) enters working area, its combination of gases control valve is equivalent to the pilot valve of hydraulic valve.During real work, human pilot makes brake weight strengthen by the gear lever of regulation combination of gases control valve or reduces so that vehicle can continue and stable brake in descending section, makes vehicle be in travel speed the most at the uniform velocity.
The parameter request difference of gas control valve both at home and abroad: actually used on the Retarder of external import is that gas ratio valve drives hydraulic valve, two valve is relatively independent but integrated installation is on Retarder body, the Retarder of domestic design is improved because of domestic behaviour in service, adjustment is have also been made in terms of control valve, its hydraulic valve is integrated on Retarder, and gas control valve is arranged on above driver's cabin or the crossbeam of vehicle.On the Retarder that current existing gas ratio valve designs at home, serviceability is the best, mainly two aspect problems: one is that the bleed pressure provided on domestic vehicles is on the low side and pressure stability is poor；Two is domestic use road conditions difference, and one, long descending section, some mountain areas descent run may need superelevation 40 minutes, it is desirable to Retarder provides stable damping torque this period, namely requires gas control valve holding pressure stability in for a long time.Reaction is exactly in terms of specific performance parameter: repeatable accuracy, pressure maintaining performance, the linearity and lagging characteristics require the highest.
The use difference of Retarder both at home and abroad: the adaptability at home of the Retarder in the general truck of import is poor, the most also apply less at present, mainly this kind Retarder is primarily adapted for use in the truck of relatively low tonnage, and the situation that road conditions are relatively good, and it is domestic because Retarder is relatively costly, so not being willing the most load-carrying of truck higher (generally more than 35t) using this device, and it travels road conditions relatively severe (the descending brake of mountain area one vice-minister can exceed that 40 minutes), the Retarder of import cannot be competent at both the above condition substantially.
Summary of the invention
It is an object of the invention to provide a kind of combination of gases control valve for Retarder so that it is fast response time, repeatable accuracy are good, pressure maintaining performance is good, easy to operate and reliable operation.
The object of the present invention is achieved like this: a kind of combination of gases control valve for Retarder, including main valve body, main valve body is provided with orthogonal first installed surface and the second installed surface, one two position three-way valve and at least two pilot valve are installed on described first installed surface, the second installed surface offers main valve chamber with pilot valve one_to_one corresponding；Main valve plug it is provided with in main valve chamber, described main valve plug is hollow structure, definite value spring it is provided with in main valve plug, described definite value spring one end is conflicted at the inner bottom part of main valve plug, the other end is conflicted on definite value spring base, main valve chamber is externally provided with pressing plate, and pressing plate is provided with the pressure regulating screw conflicted from outside to inside on definite value spring base；Main valve plug is externally provided with the first step and second step matched with main valve chamber inwall, leaves annular gap between first step, second step and main valve chamber；Between main valve chamber inner bottom part and second step, back-moving spring is installed；Described main valve plug is provided with sidewise hole and connects main valve plug inner chamber and annular gap；Some blocking chambeies are offered on another face relative with the second installed surface, blocking chamber and main valve chamber are positioned on same axis and one_to_one corresponding, communicate through airflow hole between main valve chamber inner bottom part with blocking chamber, the push rod that may pass through airflow hole it is provided with bottom main valve plug, push rod is provided with the axially extending bore connecting main valve plug inner chamber, described blocking intracavity is provided with blocking and blocking spring, the oral area in blocking chamber is provided with blocking spring base, described blocking spring is conflicted between blocking and blocking spring base, and blocking spring is pushed blocking and closed described airflow hole；The air inlet being communicated to each blocking chamber it is additionally provided with on described main valve body；Be provided with auxiliary valve pocket on first installed surface with two position three-way valve and pilot valve one_to_one corresponding, the inner bottom part of each auxiliary valve pocket is respectively equipped with centre bore and eccentric orfice；Described two position three-way valve and pilot valve are electromagnetic valve, include fixed valve plug and movable valve plug respectively, movable valve plug is movably arranged in the auxiliary valve pocket of correspondence, is provided with pushing movable valve plug and covers the secondary spring of described centre bore in auxiliary valve pocket, and described fixed valve plug fixes with solenoid；All of centre bore is turned on the inner crosslinking channel in main valve body；The eccentric orfice that two position three-way valve is corresponding is switched to the working hole on main valve body, and the fixed valve plug of two position three-way valve is additionally provided with steam vent；The eccentric orfice that described pilot valve is corresponding is respectively connecting to the main valve chamber and corresponding with back-moving spring position of correspondence；Main valve body is provided with and annular gap connects open to atmosphere relief hole.
This device coordinates Retarder to use, and its working hole connects the hydraulic valve bank of Retarder；During initialization, need by regulation pressure regulating screw, push definite value spring base to move, the promotion main valve plug of making a concerted effort making definite value spring and back-moving spring produce moves down, push rod withstands blocking and moves down together, open airflow hole, the final output pressure made a concerted effort to adjust working hole of definite value spring and back-moving spring generation can be changed by pressure regulating screw；The pressed gas come from compressed air gas source enters each blocking chamber from air inlet, then enters space, back-moving spring place through airflow hole, then awaits orders in eccentric orfice enters the auxiliary valve pocket that each pilot valve is corresponding；When the solenoid of a certain pilot valve obtains electric, the movable valve plug action that this pilot valve is corresponding so that the eccentric orfice that this pilot valve is corresponding is connected with centre bore, pressed gas is in centre bore enters inner crosslinking channel；When the solenoid of two position three-way valve obtains electric, pressed gas enters working hole through centre bore, the eccentric orfice of two position three-way valve, provides operating pressure to the hydraulic valve bank of hydraulic buffer.When this operating pressure is bigger, gas pressure promotes and moves on main valve plug, blocking also with on move, until blocking shield gas discharge orifice, now, air pressure continues to press on and moves on main valve plug, the axially extending bore making push rod departs from blocking, gas enters main valve plug inner chamber from axially extending bore, then enters annular gap from sidewise hole, then by relief hole to air pressure release, the pressure of working hole reduces accordingly, after pressure is reduced to setting value, main valve plug moves down and again promotes blocking to open airflow hole, again forms pressure balance.By pressure regulating screw, different main valve plugs can be regulated and form different operating pressures, in order to switching.When switching, the pressure in main valve chamber is then by relief hole pressure release, it is ensured that during the different pilot valve of switching, and pressure is to rise to preset pressure from emptying pressure.Compared with prior art, the friendship effect of the present invention is: this device fast response time, repeatable accuracy are good, pressure maintaining performance is good, easy to operate and reliable operation.It can be used for, on various brake and drive system for vehicle with tow, being particularly suited in large truck, is suitable for distance, brakes heavy grade.
For reduce internal leakage can performance, described push rod is connected as a single entity with main valve plug.
As a further improvement on the present invention, described relief hole runs through each annular gap.I.e. be can reach by one deep hole of brill makes relief hole run through each annular gap simultaneously, thus reaches easily manufactured purpose.
For further facilitating manufacture, described inner crosslinking channel is the circular hole running through main valve body, and the two ends of circular hole are closed through plug.
For ease of installing, described definite value spring base is arranged in main valve plug, is provided with the C-shaped clamp spring preventing definite value spring base from deviating from main valve plug.By C-shaped clamp spring, can first main valve plug, definite value spring and definite value spring base be fitted together, it is simple to follow-up be arranged in main valve chamber by main valve plug, the program makes the structure of device compacter.
As a further improvement on the present invention, described pilot valve is provided with 4.Output pressure different in 4 pilot valves and respectively offer 4, in order to control the brake force of Retarder.
For ease of sealing and using reliable, between the periphery of first step, the periphery of second step and main valve chamber inwall, it is respectively equipped with O RunddichtringO.
Tight-closed for being further ensured that, reduce internal leakage, the orifice position at airflow hole corresponding to orifice position and the blocking of the centre bore corresponding with movable valve plug is equipped with the valve seat of projection.When movable valve plug and blocking work, can conflict on valve seat so that close valve tighter.
Accompanying drawing explanation
Fig. 1 is the front view of profile of the present invention.
Fig. 2 is the top view of profile of the present invention.
Fig. 3 is the B B direction view of Fig. 1, and the main valve plug in one of them main valve chamber is not installed.
Fig. 4 is that the C C of Fig. 2 is to turnover sectional view.
Fig. 5 is the D D direction view of Fig. 1.
Fig. 6 is the E E direction view of Fig. 1.
Fig. 7 is the F F direction view of Fig. 1.
Fig. 8 is the G G direction view of Fig. 2.
Fig. 9 is the H H direction view of Fig. 7.
Wherein, 1 pressure regulating screw；2 pressing plates；3 definite value spring bases；4 definite value springs；5 main valve plugs；6 back-moving springs；7 blockings；8 blocking springs；9 blocking spring bases；10 main valve bodies；The solenoid of 11 pilot valves；12,13 fixed valve plug；The solenoid of 14 two position three-way valves, 15 sidewise holes, 16,17 movable valve plugs, 18,19 centre bores, 20,21 eccentric orfice, 22 inner crosslinking channels, 23 relief holes, 24 annular gaps, 25 axially extending bores, 26 push rods, 27 airflow holes, 28 C-shaped clamp spring, 29 steam vents, 30 O RunddichtringOs, 31 auxiliary valve pockets, 32 first steps, 33 second steps, K1 main valve chamber, K2 main valve plug inner chamber, chamber, K3 back-moving spring place, K4 blocking chamber, P air inlet, A working hole.
Detailed description of the invention
As shown in the figure shown in 19, for a kind of combination of gases control valve for Retarder, its main valve body 10 is substantially in hexahedral shape, main valve body 10 is provided with orthogonal first installed surface N and the second installed surface M, one two position three-way valve and 4 pilot valves are installed on the first installed surface N, the second installed surface M offers 4 main valve chamber K1 with pilot valve one_to_one corresponding.
Main valve plug 5 it is provided with in main valve chamber K1, main valve plug 5 is hollow structure, definite value spring 4 it is provided with in main valve plug 5, definite value spring 4 one end is conflicted at the inner bottom part of main valve plug 5, the other end is conflicted on definite value spring base 3, definite value spring base 3 is arranged in main valve plug 5, is provided with the C-shaped clamp spring 28 preventing definite value spring base 3 from deviating from main valve plug 5.Main valve chamber K1 is externally provided with pressing plate 2, and pressing plate 2 is provided with the pressure regulating screw 1 conflicted from outside to inside on definite value spring base 3；Main valve plug 5 is externally provided with first step 32 and the second step 33 that the inwall with main valve chamber K1 matches, leave annular gap 24 between first step 32, second step 33 and main valve chamber K1, between the periphery of first step 32, the periphery of second step 33 and the inwall of main valve chamber K1, be respectively equipped with O RunddichtringO 30；Between main valve chamber K1 inner bottom part and second step 33, back-moving spring 6 is installed；Main valve plug 5 is provided with sidewise hole 15 and connects main valve plug inner chamber K2 and annular gap 24；Some blocking chamber K4 are offered on another face relative with the second installed surface M, blocking chamber K4 and main valve chamber K1 is positioned on same axis and one_to_one corresponding, communicate through airflow hole 27 between main valve chamber K1 inner bottom part with blocking chamber K4, the push rod 26 that may pass through airflow hole 27 it is wholely set bottom main valve plug 5, push rod 26 is provided with the axially extending bore 25 connecting main valve plug inner chamber K2, blocking 7 and blocking spring 8 it is provided with in the K4 of blocking chamber, the oral area of blocking chamber K4 is provided with blocking spring base 9, blocking spring 8 is elastic conflicts between blocking 7 and blocking spring base 9, make blocking spring 8 can push blocking 7 and close airflow hole 27, when main valve plug 5 moves down, when push rod 26 is conflicted on blocking 7, blocking 7 can also close axially extending bore 25；The air inlet P being communicated to each blocking chamber K4 it is additionally provided with on main valve body 10, during work, air inlet P cut-in pressure source of the gas；Being provided with auxiliary valve pocket 31 with two position three-way valve and pilot valve one_to_one corresponding on first installed surface N, the inner bottom part of each auxiliary valve pocket 31 is respectively equipped with centre bore 18,19 and eccentric orfice 20,21.
Two position three-way valve and pilot valve are electromagnetic valve, and have essentially identical configuration.Wherein, centre bore 18 is corresponding with two position three-way valve with eccentric orfice 20, this two position three-way valve includes fixed valve plug 13 and movable valve plug 17, movable valve plug 17 is movably arranged in the auxiliary valve pocket 31 of correspondence, being provided with pushing movable valve plug 17 in auxiliary valve pocket 31 and cover the secondary spring of centre bore 18, fixed valve plug 13 fixes with two position three-way valve solenoid 14；Correspondingly, centre bore 19 is corresponding with pilot valve with eccentric orfice 21, this pilot valve includes fixed valve plug 12 and movable valve plug 16, movable valve plug 16 is movably arranged in the auxiliary valve pocket 31 of correspondence, being provided with pushing movable valve plug 16 in auxiliary valve pocket 31 and cover the secondary spring of centre bore 19, fixed valve plug 12 fixes with pilot valve solenoid 11；Except that be additionally provided with steam vent 29 on the fixed valve plug 13 of two position three-way valve, when movable valve plug 17 covers centre bore 18, this steam vent 29 is connected with eccentric orfice 20；When two position three-way valve solenoid 14 electric time, hole, movable valve plug 17 off center 18 and cover steam vent 29, now, centre bore 18 is connected with eccentric orfice 20.
The inner crosslinking channel 22 that all of centre bore 18,19 is turned in main valve body 10, inner crosslinking channel 22 is the circular hole running through main valve body 10, and the two ends of circular hole are closed through plug；The eccentric orfice 20 that two position three-way valve is corresponding is switched to the working hole A on main valve body 10；4 eccentric orfices 21 that pilot valve is corresponding are respectively connecting to the main valve chamber K1 of correspondence and connect with back-moving spring place chamber K3；Main valve body 10 is provided with and annular gap 24 connects open to atmosphere relief hole 23, and relief hole 23 runs through each annular gap 24.
Tight-closed for being further ensured that, reduce internal leakage, the orifice position of the airflow hole 27 that the orifice position of the centre bore 19 that orifice position at the centre bore 18 corresponding with movable valve plug 17 is corresponding with movable valve plug 16 is corresponding with blocking 7 is equipped with the valve seat of projection.When movable valve plug 16,17 and blocking 7 work, can conflict on valve seat so that close valve tighter.
This device coordinates Retarder to use, and its working hole A connects the hydraulic valve bank of Retarder；During initialization, need by regulation pressure regulating screw 1, push definite value spring base 3 to move, the promotion main valve plug 5 of making a concerted effort making definite value spring 4 and back-moving spring 6 produce moves down, push rod 26 withstands blocking 7 and moves down together, open airflow hole 27, the final output pressure made a concerted effort to adjust working hole A of definite value spring 4 and back-moving spring 6 generation can be changed by pressure regulating screw 1；The pressed gas come from compressed air gas source enters each blocking chamber K4 from air inlet P, then enters back-moving spring place chamber K3 through airflow hole 27, then awaits orders in eccentric orfice 21 enters the auxiliary valve pocket 31 that each pilot valve is corresponding；When a certain pilot valve solenoid 11 obtains electric, movable valve plug 16 action that this pilot valve is corresponding so that the eccentric orfice 21 that this pilot valve is corresponding is connected with centre bore 19, and pressed gas is in centre bore 19 enters inner crosslinking channel 22；When two position three-way valve solenoid 14 obtains electric, pressed gas enters working hole A through centre bore 18, the eccentric orfice 20 of two position three-way valve, provides operating pressure to the hydraulic valve bank of hydraulic buffer.When this operating pressure is bigger, gas pressure promotes and moves on main valve plug 5, blocking 7 also with on move, until blocking 7 shield gas discharge orifice 27, now, air pressure continues to press on and moves on main valve plug 5, the axially extending bore 25 making push rod 26 departs from blocking 7, and gas enters main valve plug inner chamber K2 from axially extending bore 25, then enters annular gap 24 from sidewise hole 15, then by relief hole 23 to air pressure release, the pressure of working hole A reduces accordingly, and after pressure is reduced to setting value, main valve plug 5 moves down and again promotes blocking 7 to open airflow hole 27, thus, can again form pressure balance.By pressure regulating screw 1, different main valve plugs can be regulated and form different operating pressures, in order to switching.When switching, the pressure in main valve chamber K1 is then by relief hole 23 pressure release, it is ensured that during the different pilot valve of switching, and pressure is to rise to preset pressure from emptying pressure.
This device fast response time, repeatable accuracy are good, pressure maintaining performance is good, easy to operate and reliable operation.It can be used for, on various brake and drive system for vehicle with tow, being particularly suited in large truck, is suitable for distance, brakes heavy grade.
The invention is not limited in above-described embodiment; on the basis of technical scheme disclosed by the invention; those skilled in the art is according to disclosed technology contents; need not performing creative labour and some of which technical characteristic just can be made some replacements and deformation, these are replaced and deformation is the most within the scope of the present invention.Such as pilot valve can arrange more than two any many groups.
Claims (8)
1. the combination of gases control valve for Retarder, including main valve body, main valve body is provided with orthogonal first installed surface and the second installed surface, it is characterized in that: a two position three-way valve and at least two pilot valve are installed on described first installed surface, the second installed surface offers main valve chamber with pilot valve one_to_one corresponding；
Main valve plug it is provided with in main valve chamber, described main valve plug is hollow structure, definite value spring it is provided with in main valve plug, described definite value spring one end is conflicted at the inner bottom part of main valve plug, the other end is conflicted on definite value spring base, main valve chamber is externally provided with pressing plate, and pressing plate is provided with the pressure regulating screw conflicted from outside to inside on definite value spring base；
Main valve plug is externally provided with the first step and second step matched with main valve chamber inwall, leaves annular gap between first step, second step and main valve chamber；Between main valve chamber inner bottom part and second step, back-moving spring is installed；Described main valve plug is provided with sidewise hole and connects main valve plug inner chamber and annular gap；
Some blocking chambeies are offered on another face relative with the second installed surface, blocking chamber and main valve chamber are positioned on same axis and one_to_one corresponding, communicate through airflow hole between main valve chamber inner bottom part with blocking chamber, the push rod that may pass through airflow hole it is provided with bottom main valve plug, push rod is provided with the axially extending bore connecting main valve plug inner chamber, described blocking intracavity is provided with blocking and blocking spring, the oral area in blocking chamber is provided with blocking spring base, described blocking spring is conflicted between blocking and blocking spring base, and blocking spring is pushed blocking and closed described airflow hole；The air inlet being communicated to each blocking chamber it is additionally provided with on described main valve body；
Be provided with auxiliary valve pocket on first installed surface with two position three-way valve and pilot valve one_to_one corresponding, the inner bottom part of each auxiliary valve pocket is respectively equipped with centre bore and eccentric orfice；Described two position three-way valve and pilot valve are electromagnetic valve, include fixed valve plug and movable valve plug respectively, movable valve plug is movably arranged in the auxiliary valve pocket of correspondence, is provided with pushing movable valve plug and covers the secondary spring of described centre bore in auxiliary valve pocket, and described fixed valve plug fixes with solenoid；All of centre bore is turned on the inner crosslinking channel in main valve body；The eccentric orfice that two position three-way valve is corresponding is switched to the working hole on main valve body, and the fixed valve plug of two position three-way valve is additionally provided with steam vent；The eccentric orfice that described pilot valve is corresponding is respectively connecting to the main valve chamber and corresponding with back-moving spring position of correspondence；Main valve body is provided with and annular gap connects open to atmosphere relief hole.
Combination of gases control valve for Retarder the most according to claim 1, it is characterised in that: described push rod is connected as a single entity with main valve plug.
Combination of gases control valve for Retarder the most according to claim 1 and 2, it is characterised in that: described relief hole runs through each annular gap.
Combination of gases control valve for Retarder the most according to claim 1 and 2, it is characterised in that: described inner crosslinking channel is the circular hole running through main valve body, and the two ends of circular hole are closed through plug.
Combination of gases control valve for Retarder the most according to claim 1 and 2, it is characterised in that: described definite value spring base is arranged in main valve plug, is provided with the C-shaped clamp spring preventing definite value spring base from deviating from main valve plug.
Combination of gases control valve for Retarder the most according to claim 1 and 2, it is characterised in that: described pilot valve is provided with 4.
Combination of gases control valve for Retarder the most according to claim 1 and 2, it is characterised in that: it is respectively equipped with O RunddichtringO between the periphery of first step, the periphery of second step and main valve chamber inwall.
Combination of gases control valve for Retarder the most according to claim 1 and 2, it is characterised in that: the orifice position of the airflow hole that the orifice position of the centre bore corresponding with movable valve plug is corresponding with blocking is equipped with the valve seat of projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412897.8A CN105905096B (en) | 2016-06-13 | 2016-06-13 | Combination of gases control valve for Retarder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412897.8A CN105905096B (en) | 2016-06-13 | 2016-06-13 | Combination of gases control valve for Retarder |
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| CN105905096A true CN105905096A (en) | 2016-08-31 |
| CN105905096B CN105905096B (en) | 2018-11-09 |
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Cited By (5)
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| CN107606243A (en) * | 2017-09-05 | 2018-01-19 | 湖北华特专用设备有限公司 | A kind of safety attachment control valve for road transport dangerous cargo tank vehicle |
| CN110017382A (en) * | 2019-05-21 | 2019-07-16 | 郑州爱因特电子科技有限公司 | A kind of Retarder control valve |
| CN110509906A (en) * | 2019-09-19 | 2019-11-29 | 深圳市特尔佳科技股份有限公司 | A kind of control system of the automobile-used Retarder of underground work |
| CN110745120A (en) * | 2019-09-19 | 2020-02-04 | 深圳市特尔佳科技股份有限公司 | Control system of hydraulic retarder for underground operation vehicle |
| CN112780705A (en) * | 2019-11-07 | 2021-05-11 | 威伯科欧洲有限责任公司 | Pneumatic control device for hydrodynamic retarder |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107606243A (en) * | 2017-09-05 | 2018-01-19 | 湖北华特专用设备有限公司 | A kind of safety attachment control valve for road transport dangerous cargo tank vehicle |
| CN107606243B (en) * | 2017-09-05 | 2024-05-03 | 湖北华特专用设备有限公司 | Safety accessory control valve for road transportation dangerous cargo tank type vehicle |
| CN110017382A (en) * | 2019-05-21 | 2019-07-16 | 郑州爱因特电子科技有限公司 | A kind of Retarder control valve |
| CN110509906A (en) * | 2019-09-19 | 2019-11-29 | 深圳市特尔佳科技股份有限公司 | A kind of control system of the automobile-used Retarder of underground work |
| CN110745120A (en) * | 2019-09-19 | 2020-02-04 | 深圳市特尔佳科技股份有限公司 | Control system of hydraulic retarder for underground operation vehicle |
| CN110745120B (en) * | 2019-09-19 | 2022-04-22 | 深圳市大为创新科技股份有限公司 | Control system of hydraulic retarder for underground operation vehicle |
| CN110509906B (en) * | 2019-09-19 | 2024-04-02 | 深圳市大为创新科技股份有限公司 | Control system of hydraulic retarder for underground operation vehicle |
| CN112780705A (en) * | 2019-11-07 | 2021-05-11 | 威伯科欧洲有限责任公司 | Pneumatic control device for hydrodynamic retarder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105905096B (en) | 2018-11-09 |
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