CN108775353B - A kind of liquid that blade has current vortex function concurrently replies conjunction retarder by cable - Google Patents
A kind of liquid that blade has current vortex function concurrently replies conjunction retarder by cable Download PDFInfo
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- CN108775353B CN108775353B CN201810718607.1A CN201810718607A CN108775353B CN 108775353 B CN108775353 B CN 108775353B CN 201810718607 A CN201810718607 A CN 201810718607A CN 108775353 B CN108775353 B CN 108775353B
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- retarder
- rotor
- stator
- blade
- liquid
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Classifications
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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
- F16D57/02—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders with blades or like members braked by the fluid
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
- H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses the liquid that a kind of blade has current vortex function concurrently to reply conjunction retarder by cable, belongs to Non-contact vehicle brake field.Circle structure is recycled using the rotor and stator of conventional fluid torque retarder and is transformed design, and blade wall surface controls fluid flowing, changes fluid momentum square, retains Retarder function；Its blade integrally has both magnetic conduction function, retarder interior design magnet exciting coil excitation, and blade forms magnetic circuit as a part of closed magnetic circuit, attached electric vortex buffering function when magnet exciting coil works for retarder.Above-mentioned design is while retaining original hydrodynamic retarding function, so that the retarder merges electric vortex buffering function by the same blade construction after optimization, successful design goes out a kind of full speed section high quality power density, quick response, the liquid that structure is simple, highly integrated and replies conjunction retarder by cable.
Description
Technical field
The present invention relates to the liquid that a kind of blade has current vortex function concurrently to reply conjunction retarder by cable, belongs to Non-contact vehicle braking
Field.
Background technique
Retarder be it is a kind of for heavy vehicle lower long slope when brake force is insufficient and foundation brakes caused by frequently braking and
The problems such as train serious wear and the safety aid researched and developed, it is using contactless mode by Braking in vehicle
On transmission parts, plays the role of consuming harmful energy, reduce Vehicle Speed.At present applied to main on heavy vehicle
It is current vortex retarder and Retarder two major classes.
The working principle of traditional current vortex retarder is: metal surface when doing cutting magnetic induction line movement, air gap flux density with
The rotation of rotor and generating period changes, vortex potential, the vortex institute shape are generated within the scope of stator surface and certain depth
It interacts at magnetic field and air-gap field, generates braking moment；The kinetic energy of vehicle is disappeared by this medium reverts of magnetic field for thermal energy
It consumes, and then plays the role of non-contact brake.
The working principle of conventional fluid torque retarder is: when Retarder work, compressed air enters storage through solenoid valve
Working solution in fuel reserve tank is pressed into retarder by fuel tank through oil circuit, and rotor drives working solution to rotate about the axis；Meanwhile it working
Liquid is moved along direction blade, is got rid of to stator；Stator vane generates reaction to working solution, and working solution outflow stator turns round impact again
Rotor forms the moment of resistance to rotor, hinders rotor rotation, to realize the braking action to vehicle.
That there are power densities is low for existing current vortex retarder, and structure size is larger, needs to increase to meet brake power of vehicle
It is powered on the diameter and quality of eddy current retarder, reduces the economy of vehicle transport；The shortcomings that Retarder is then in low speed
Lower braking power is smaller, and the response time is long.Based on such situation, there is liquid and reply conjunction retarder by cable, such retarder is by electric whirlpool
It in same structure, in conjunction with the two feature, is realized with the two different system design integrations in hydrodynamic retarding part the slow part of stream
It the operation of retarder full speed section high power density and is enable to respond quickly.However, such retarder is really relatively only by two sets
What vertical electric vortex buffering and hydrodynamic retarding system were constituted, still remain the features such as structure is complicated, and power density is low.
To further increase retarder full speed section power density, conjunction is replied by cable using the liquid that a kind of blade has current vortex function concurrently
Retarder design, the design pass through the correction of the flank shape and integrally-built adjustment to blade based on conventional fluid torque speed buffer structure
Electric vortex buffering part is carried out height with hydrodynamic retarding part to merge, stator, rotor structure can complete hydrodynamic retarding function
Can, and subsidiary electric vortex buffering function.
Summary of the invention
The purpose of the present invention is breaking through the deficiency of existing retarder, the innovative rotor using conventional fluid torque retarder with
Stator recycles circle structure and is transformed design, and blade wall surface controls fluid flowing, changes fluid momentum square, retains hydrodynamic retarding
Device function；Its blade integrally has both magnetic conduction function, retarder interior design magnet exciting coil excitation, blade as closed magnetic circuit one
Part forms magnetic circuit, attached electric vortex buffering function when magnet exciting coil works for retarder.Above-mentioned design is retaining original liquid
While power slow function, so that the retarder merges electric vortex buffering function, success by the same blade construction after optimization
Designing a kind of full speed section high quality power density, quick response, the New that structure is simple, highly integrated, to reply conjunction by cable slow
Device.
The scheme that the present invention solves above-mentioned technical problem is as follows:
A kind of liquid that blade has current vortex function concurrently replies conjunction retarder by cable, which specifically includes that rotor, stator, encourages
Magnetic coil and control system.
The rotor is disc type overall structure, the side arrangement Retarder hydraulic circular circle of disk, hydrodynamic retarding
Blade is distributed in device hydraulic circular circle；The magnetic circuit part of rotor is made of permeability magnetic material, rotor and stator arranged concentric；Work
When, rotor and stator are relative rotation, and rotor and transmission shaft rotate synchronously.
The stator is revolving body overall structure, and hydraulic circular is made in stator side corresponding with rotor disk circulation circle structure
Circle structure, hydraulic circular circle structure is interior to be distributed blade, and stator side assembles magnet exciting coil, stator and excitation close to transmission shaft position
Coil is remain stationary with respect to rack, and certain interval is kept between stator and rotor, and the magnetic circuit part of stator uses permeability magnetic material system
It makes.
The blade is made using permeability magnetic material, and blade wall surface controls fluid flowing, changes fluid momentum square, realizes fluid power
Slow function；Blade integrally has both magnetic conduction function, and a part as magnetic circuit forms closed magnetic circuit, and the retarder is made to have electric whirlpool concurrently
Flow slow function.
The magnet exciting coil is to concentrate coiling, and magnet exciting coil is fixed, is sealed on stator, and passes through the fairlead on stator
It draws, magnet exciting coil is powered and is retarder excitation when work, forms closed magnetic circuit on stator and rotor.
The liquid that the blade has current vortex function concurrently replies conjunction retarder by cable, and closed magnetic circuit is mainly led by stator, rotor wall
Magnetic part, the gas that gap location is formed between stator and rotor when stator vane, rotor blade and stator and rotor relative movement
Gap is constituted.
The liquid that the blade has current vortex function concurrently replies conjunction retarder, the fluid path of working solution by cable are as follows: by working solution import
It flows into and send to rotor circulation circle, rotor drives working solution to rotate about the axis, and the recycle stream between stator, rotor circulation circle
Dynamic, work converges to retarder bottom when completing, and is exported and is discharged by bottom working solution.
The liquid that the blade has current vortex function concurrently replies conjunction retarder by cable, and a variety of media, including liquid can be used in working solution
Pressure oil, water, coolant liquid etc.；Wherein water, coolant liquid can share same medium with engine-cooling system, and province deoils, hydrothermal exchange
Process simplifies structure.
Electric current in the control system control working solution import, exit fluid path and magnet exciting coil.By controlling work
Liquid import, the working fluid pressure in exit and flow control hydrodynamic retarding part torque；By adjusting the electricity in magnet exciting coil
Size is flowed, the braking moment of electric vortex buffering part is adjusted.
The working principle that the liquid that blade of the present invention has current vortex function concurrently replies conjunction retarder by cable is as follows:
When electric vortex buffering part works, magnet exciting coil is passed through electric current, can be fixed since magnet exciting coil is fixed on stator
Magnetic circuit is formed on sub- permeable section.The magnetic line of force separates on stator, is reached between stator and rotor by the blade on stator
Gap location, then reach on the blade of rotor through gap and converged on rotor, finally again by stator and rotor close to transmission axle position
Stator is flowed back in the gap set, and constitutes closed magnetic circuit；The air-gap field formed due to the relative motion between stator and rotor, gap location
Area constantly change, then on the blade of two sides generate vortex, vortex excitation induced magnetic field, with former magnetic field phase interaction
With generation braking moment, the braking moment is acted on vehicular transmission shaft by rotor connecting member, that is, plays non-contact brake
Effect.
When hydrodynamic retarding part works, working solution is sent by import to rotor hydraulic circular circle by external pump, is turned
Subband moves working solution and rotates about the axis, and circulates between stator, rotor circulation circle, and the braking moment of generation is made by rotor
For transmission shaft, transmission shaft kinetic energy is converted into energy in working solution.Working solution circulation circle in carry out cycle operation while, also for
Electric vortex buffering partial warm down.Work complete when, working solution converges to retarder bottom, by the other side it is external pump by working solution from
The discharge of connector outlet at bottom.
Stop evacuating working solution into retarder transportation work liquid from retarder when retarder does not work.In retarder
For the liquid-free environment of certain vacuum degree, hydrodynamic retarding part stops working, and sky damage reduces.Magnet exciting coil power-off, electric vortex buffering
Part also stops working.
The liquid that a kind of blade has current vortex function concurrently replies conjunction retarder by cable, can pass through control working solution import, outlet
The working fluid pressure at place and the torque of flow control hydrodynamic retarding part；By adjusting the size of current in magnet exciting coil, adjust
The braking moment of electric vortex buffering part.
Compared with existing retarder, advantage of the present invention is as follows.
The present invention is innovative to lead to retarder fluid power and electric vortex buffering function as a kind of auxiliary brake device for automobile
Same blade construction after crossing optimization is realized；While simplifying structure, the retarder is made to retain original hydrodynamic retarding function,
And electric vortex buffering function is had both, it is simple, high that successful design goes out a kind of full speed section high quality power density, quick response, structure
The integrated New of degree replies conjunction retarder by cable.
Detailed description of the invention
Fig. 1 is one principle schematic diagram of embodiment of the present invention, and closure wire frame is one magnetic circuit of embodiment, and arrow is signified
For magnetic circuit loop direction.
Fig. 2 is one axial plane fluid path figure of embodiment of the present invention；
Fig. 3 is two principle schematic diagram of embodiment of the present invention, and closure wire frame is one magnetic circuit of embodiment, and arrow is signified
For magnetic circuit loop direction；
Fig. 4 is two axial plane fluid path figure of embodiment of the present invention；
Fig. 5 is three principle schematic diagram of embodiment of the present invention, and closure wire frame is one magnetic circuit of embodiment, and arrow is signified
For magnetic circuit loop direction；
Fig. 6 is two rotor stereoscopic schematic diagram of embodiment, and the hydraulic circular circle of rotor two sides is symmetrical, hydraulic circular circle
Interior uniformly distributed blade；
Fig. 7 is two stator stereoscopic schematic diagram of embodiment.
In figure: 1 control system, 2 side covers, 3 rotors, 4 stators, 5 magnet exciting coils, 6 working solution imports, 7 working solution import liquid
Road, 8 working solutions export fluid path, the outlet of 9 working solutions.
Specific embodiment
Principles and features of the present invention are further described below in conjunction with attached drawing.
Embodiment one
As shown in Figure 1, the embodiment one that the liquid that a kind of blade has current vortex function concurrently replies conjunction retarder by cable specifically includes that
Rotor, stationary part, magnet exciting coil group, control system.The stationary part includes side cover 2, stator 4.The generally disc type of rotor 3
Structure, disk side arrangement conventional fluid torque retarder hydraulic circular circle；Stator 4 is rotary structure, recycles circle knot with rotor disk
Make hydraulic circular circle structure in the corresponding side of structure.The embodiment one, side cover are un-conducted magnetic material, and rotor blade is determined
Blades and other magnetic circuit parts are manufactured using permeability magnetic material；The embodiment one, stator vane, rotor blade are by repairing
Shape design, blade wall surface controllable flow body flowing, changes fluid momentum square；Blade integrally has both magnetic conduction function, can be used to form
Closed magnetic circuit.
The embodiment one, stator 4 are remain stationary with respect to rack, and 0.5 millimeter to 1 is kept between stator 4 and rotor 3
The gap of millimeter；Transmission shaft is connected with rotor 4, transmits power.When work, rotor 3 and 4 arranged concentric of stator, when work, stator
With rotor relative rotation, rotor and transmission shaft are rotated synchronously.Magnet exciting coil group 5 concentrates coiling, seals, is fixed on stator 4, phase
To stator stationary.When the work of electric vortex buffering part, it is passed through direct current to magnet exciting coil group, generates magnetic field, in stator 4, turned
The closed magnetic circuit of variation, magnetic circuit such as Fig. 1 are formed on gap between sub 3 blades and other permeable sections and stator and rotor
It is shown.When transmission shaft drives rotor 3 to rotate, air-gap field cyclically-varying makes to generate current vortex, electric whirlpool on stator 4 and rotor 3
Stream is equivalent to hot-wire coil, generates induced magnetic field, with former magnetic field interaction, generates braking moment, hinders the rotation of transmission shaft,
Harmful energy is absorbed, and this portion of energy is converted into thermal energy, is consumed by heat transfer, convective heat transfer, heat radiation by retarder
Fall.
As shown in Fig. 2, the embodiment one, when hydrodynamic retarding part works, fluid path 7 is will using the external pump of import
Working solution by import 6 input and send to rotor hydraulic circular circle in, rotor drive working solution rotate about the axis, and stator, turn
It is circulated between subcycle circle, generates braking moment；It is also current vortex while working solution carries out cycle operation in circulation circle
Slow partial warm down.When work is completed, working solution converges to retarder bottom by shown in retarder outlet fluid path 8, by the other side
Working solution is discharged external pump from connector outlet at bottom 9.
The embodiment one can pass through control working solution import, the working fluid pressure and flow control fluid power in exit
The torque of slow part；By adjusting the size of current in magnet exciting coil, the braking moment of electric vortex buffering part is adjusted.
Embodiment two
As shown in figure 3, the liquid that a kind of blade has current vortex function concurrently replies the embodiment two for closing retarder and embodiment party by cable
Case one is compared, and the symmetric design of two sides stator, center roller and twin coil group is mainly changed on the basis of one-sided configuration
Scheme, to balance the axial attraction between unilateral stator and rotor；Axial dimension is effectively reduced simultaneously, optimizes whole knot
Structure improves braking effect.As shown in Figure 6: rotor is the conventional fluid torque retarder fluid power rotor disc structure that two sides are arranged symmetrically；Such as
Shown in Fig. 7: stator is identical as stator structure described in embodiment one, but increasing is symmetrical two stators.
The embodiment two, compared with embodiment one, specific improve is: side cover being removed, right side stator is changed to
With intermediate connector two parts made of un-conducted magnetic material, arranged on left and right sides stator relative vehicle rack is static, at the same with connection
Part is fixed；It is arranged symmetrically conventional fluid torque retarder hydraulic circular circle in rotor discs two sides, guarantees two sides stator and center roller
Between gap be 0.5 millimeter to 1 millimeter, as shown in Figure 3；Two groups of magnet exciting coils are sealed respectively, are fixed on the stator of two sides, and
Relative stator is static.When the work of electric vortex buffering part, it is passed through reversed direct current to two groups of magnet exciting coils, generates magnetic field, In
Right side stator, left side stator form two groups etc. on the gap between blade and permeable section and stator and rotor on rotor
Greatly, closed magnetic circuit reversely, magnetic circuit are as shown in Figure 3.
As shown in figure 4, working solution is inputted and is sent by import when hydrodynamic retarding part works by the embodiment two
To rotor two sides hydraulic circular circle；When work is completed, working solution converges to retarder bottom by two sides hydraulic circular circle, from even
The discharge of fitting outlet at bottom.
Embodiment three
As shown in figure 5, the liquid that a kind of blade has current vortex function concurrently replies the embodiment three for closing retarder and embodiment party by cable
Case two is compared, and the design scheme of big closed magnetic circuit is mainly changed on the basis of 2 two groups of small closed magnetic circuits of embodiment, and
Two structure of embodiment is optimized accordingly.
The embodiment three is passed through direct current in the same direction to two groups of magnet exciting coils when the work of its electric vortex buffering part,
Magnetic field is generated, with the gap between the blade and permeable section and stator and rotor on left side stator, right side stator, rotor
For a big closed magnetic circuit is integrally formed, magnetic circuit is as shown in Figure 5.
Shown embodiment three, hydrodynamic retarding part and embodiment two are almost the same.
Claims (9)
1. the liquid that a kind of blade has current vortex function concurrently replies conjunction retarder by cable, it is characterised in that: the retarder includes: rotor, determines
Son, magnet exciting coil and control system；
The rotor is disc type overall structure, the side arrangement Retarder hydraulic circular circle of disk, Retarder liquid
Blade is distributed in power circulation circle；The magnetic circuit part of rotor is made of permeability magnetic material, rotor and stator arranged concentric；When work,
Rotor and stator are relative rotation, and rotor and transmission shaft rotate synchronously；
The stator is revolving body overall structure, and stator side corresponding with rotor disk circulation circle structure is made hydraulic circular circle and tied
Structure, hydraulic circular circle structure is interior to be distributed blade, and stator side assembles magnet exciting coil, stator and magnet exciting coil close to transmission shaft position
Opposite rack is remain stationary, and certain interval is kept between stator and rotor, and the magnetic circuit part of stator is manufactured using permeability magnetic material；Institute
State the electric current in control system control working solution import, exit fluid path and magnet exciting coil；Pass through control working solution import, outlet
The working fluid pressure at place and the torque of flow control hydrodynamic retarding part；By adjusting the size of current in magnet exciting coil, adjust
The braking moment of electric vortex buffering part.
2. the liquid that a kind of blade according to claim 1 has current vortex function concurrently replies conjunction retarder by cable, it is characterised in that: institute
It states blade to be made using permeability magnetic material, blade wall surface controls fluid flowing, changes fluid momentum square, realizes hydrodynamic retarding function；
Blade integrally has both magnetic conduction function, and a part as magnetic circuit forms closed magnetic circuit, and the retarder is made to have electric vortex buffering function concurrently
Energy.
3. the liquid that a kind of blade according to claim 1 has current vortex function concurrently replies conjunction retarder by cable, it is characterised in that: institute
Magnet exciting coil is stated to concentrate coiling, magnet exciting coil is fixed, is sealed on stator, and is drawn by the fairlead on stator, work
When magnet exciting coil be powered and be retarder excitation, form closed magnetic circuit on stator and rotor.
4. the liquid that a kind of blade according to claim 1 has current vortex function concurrently replies conjunction retarder by cable, it is characterised in that: institute
It states blade and has the liquid of current vortex function concurrently and reply conjunction retarder by cable, closed magnetic circuit is mainly by stator, rotor wall permeable section, stator
The air gap that gap location is formed between stator and rotor when blade, rotor blade and stator and rotor relative movement is constituted.
5. the liquid that a kind of blade according to claim 1 has current vortex function concurrently replies conjunction retarder by cable, it is characterised in that: institute
State blade and have the liquid of current vortex function concurrently and reply conjunction retarder, the fluid path of working solution by cable are as follows: flowed by working solution import and send to
In rotor circulation circle, rotor drives working solution to rotate about the axis, and circulates between stator, rotor circulation circle, and work is completed
When converge to retarder bottom, by bottom working solution export be discharged.
6. the liquid that a kind of blade according to claim 1 has current vortex function concurrently replies conjunction retarder by cable, it is characterised in that: institute
State blade and have the liquid of current vortex function concurrently and reply conjunction retarder by cable, working solution is able to use a variety of media, including hydraulic oil, water and
Coolant liquid；Wherein water, coolant liquid can share same medium with engine-cooling system.
7. the liquid that a kind of blade according to claim 1 has current vortex function concurrently replies conjunction retarder by cable, it is characterised in that: electricity
When the slow part of vortex works, magnet exciting coil is passed through electric current, can be in stator permeable section since magnet exciting coil is fixed on stator
Upper formation magnetic circuit；The magnetic line of force separates on stator, reaches the gap location between stator and rotor by the blade on stator, then pass through
Gap reaches on the blade of rotor and converges on rotor, is finally flowed back to again with rotor close to the gap of transmission shaft position by stator
Stator constitutes closed magnetic circuit；Due to the relative motion between stator and rotor, the area for the air-gap field that gap location is formed constantly is sent out
Changing, then generates vortex on the blade of two sides, and vortex excitation induced magnetic field generates brake force with former magnetic field interaction
Square, the braking moment are acted on vehicular transmission shaft by rotor connecting member, that is, play the role of non-contact brake；
When hydrodynamic retarding part works, working solution is sent by import to rotor hydraulic circular circle by external pump, rotor band
Dynamic working solution rotates about the axis, and circulates between stator, rotor circulation circle, and the braking moment of generation is acted on by rotor
Transmission shaft, transmission shaft kinetic energy are converted into energy in working solution；It is also electric whirlpool while working solution carries out cycle operation in circulation circle
Flow slow partial warm down；When work is completed, working solution converges to retarder bottom, by the external pump in the other side by working solution from connection
The discharge of part outlet at bottom.
8. the liquid that a kind of blade according to claim 1 has current vortex function concurrently replies conjunction retarder by cable, it is characterised in that: slow
Stop evacuating working solution into retarder transportation work liquid from retarder when fast device does not work；It is certain vacuum in retarder
The liquid-free environment of degree, hydrodynamic retarding part stop working, and sky damage reduces；Magnet exciting coil power-off, electric vortex buffering part also stops
Work.
9. the liquid that a kind of blade according to claim 1 has current vortex function concurrently replies conjunction retarder by cable, it is characterised in that: logical
Cross control working solution import, the working fluid pressure in exit and the torque of flow control hydrodynamic retarding part；By adjusting excitation
Size of current in coil adjusts the braking moment of electric vortex buffering part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810718607.1A CN108775353B (en) | 2018-07-01 | 2018-07-01 | A kind of liquid that blade has current vortex function concurrently replies conjunction retarder by cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810718607.1A CN108775353B (en) | 2018-07-01 | 2018-07-01 | A kind of liquid that blade has current vortex function concurrently replies conjunction retarder by cable |
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| Publication Number | Publication Date |
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| CN108775353A CN108775353A (en) | 2018-11-09 |
| CN108775353B true CN108775353B (en) | 2019-10-29 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022051934A1 (en) * | 2020-09-09 | 2022-03-17 | 常州机电职业技术学院 | Electromagnetic-hydraulic composite braking retarding device, and braking method thereof |
| CN112128276B (en) * | 2020-09-09 | 2022-06-14 | 常州机电职业技术学院 | Electromagnetic hydraulic composite braking retarding device and braking method thereof |
| CN114962498A (en) * | 2022-06-13 | 2022-08-30 | 安阳工学院 | Single-coil hydraulic-electric composite retarder with stator connecting piece having salient pole structure |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES306785A1 (en) * | 1963-12-19 | 1965-04-16 | Labavia | Foucault current braking devices |
| FR2289802A1 (en) * | 1974-11-04 | 1976-05-28 | Ruggieri Ets | Water cooled combination brake for measuring torque - has electromagnetic powder brake on shaft with double Foucault current brake |
| CN100574060C (en) * | 2006-03-02 | 2009-12-23 | 赵典军 | Retarder for vehicles |
| CN201581800U (en) * | 2009-11-23 | 2010-09-15 | 石家庄煤矿机械有限责任公司 | Adjustable hydraulic brake |
| CN202094788U (en) * | 2011-04-29 | 2011-12-28 | 泰乐玛汽车制动系统（上海）有限公司 | Novel eddy current brake |
| CN102689596A (en) * | 2011-07-19 | 2012-09-26 | 沈勇 | Retarder for water eddy automobile |
| CN103381758A (en) * | 2012-05-03 | 2013-11-06 | 江西波星机械泵阀制造有限公司 | Eddy current retarder |
| CN105846623B (en) * | 2016-05-15 | 2018-06-01 | 北京工业大学 | A kind of electromagnetism liquid-cooled retarder of bimorph transducer twin coil |
| CN105904973B (en) * | 2016-05-24 | 2018-02-27 | 中国北方车辆研究所 | A kind of liquid thermoelectricity compound type retarder brake element |
| CN108233671B (en) * | 2018-02-10 | 2020-03-13 | 北京工业大学 | Electro-hydraulic composite retarder with built-in pump |
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2018
- 2018-07-01 CN CN201810718607.1A patent/CN108775353B/en active Active
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