CN104964018A - Lock-up clutch - Google Patents
Lock-up clutch Download PDFInfo
- Publication number
- CN104964018A CN104964018A CN201510371415.4A CN201510371415A CN104964018A CN 104964018 A CN104964018 A CN 104964018A CN 201510371415 A CN201510371415 A CN 201510371415A CN 104964018 A CN104964018 A CN 104964018A
- Authority
- CN
- China
- Prior art keywords
- clutch
- driven disc
- shell
- lock
- supporting rib
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 210000003205 muscle Anatomy 0.000 claims description 15
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009423 ventilation Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000005855 radiation Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 229910017083 AlN Inorganic materials 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 206010017389 Frotteurism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000021170 buffet Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
-
- 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
- F16H—GEARING
- F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
- F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
- F16H2045/0273—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type characterised by the type of the friction surface of the lock-up clutch
- F16H2045/0289—Details of friction surfaces of the lock-up clutch
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention discloses a lock-up clutch and belongs to the field of clutches. According to the lock-up clutch, the side, back up to a flywheel, of a driven disk is provided with an annular supporting rib. The supporting rib is provided with a plurality of air blowing ribs. The air blowing ribs penetrate through the two sidewalls of the supporting rib and are arranged face to face. The surface of the driven disk and the surface of a shell are both provided with aluminum nitride layers. The shell is provided with an electric push rod, a microcontroller, a temperature sensor and an electric fan. The electric push rod penetrates through the shell and is connected with a spring base. A sleeve is arranged at the joint of the electric push rod and the outer surface of the shell. The microcontroller is electrically connected with the electric push rod, the temperature sensor and the electric fan. The lock-up clutch can provide effective cooling compensation for a hydraulic torque converter and has good heat absorption capacity and good ventilation and heat dissipation effects.
Description
Technical field
The present invention relates to clutch, be specifically related to a kind of lock-up clutch.
Background technique
In the flywheel casing of clutch between motor and gearbox, be fixed on the back plane of flywheel with screw by clutch assembly, the output shaft of clutch is exactly the input shaft of gearbox.In vehicle traveling process, driver can step on as required or release the clutch pedal, and motor and gearbox is temporarily separated and engages gradually, to cut off or to transmit the power that motor inputs to speed changer.Clutch is the common components in mechanical transmission, transmission system can be separated at any time or engage.Conventional clutch is divided into castellated with friction type two class.
Friction clutch applies the most also be a history class clutch at most, it is made up of friction plate, spring, driven disc and driven shaft substantially, it is between motor and gearbox, the moment that engine flywheel stores is used for pass to gearbox, to ensure that vehicle passes to the appropriate driving force of driving wheel and moment of torsion under different running condition, belong to the category of power assembly.In separation process, let slip the clutch, first eliminates the free clearance of clutch, then in working stroke, produces Separation, clutch separation in free travel.In engaging process, release the clutch pedal gradually, driven disc moves forward under the effect of holddown spring, first eliminates Separation, and acts on enough impacting forces on driven disc, driven disc and flywheel working surface; Release bearing moves backward under the effect of Returnning spring afterwards, produces free clearance, and clutch engages.
Friction plate frictional heat in friction clutch working procedure, if heat is as shed not in time, can have a strong impact on its place of working reliability and working life.But existing friction clutch heat dispersion is poor, so that reduce in the reliability of friction clutch and working life.
Summary of the invention
The invention provides a kind of lock-up clutch, poor to solve existing friction clutch heat dispersion, so that the problem of the reliability of friction clutch and reduction in working life.
For overcoming the above problems, adopt following scheme:
Scheme one: a kind of lock-up clutch, the flywheel comprising shell and connect in the enclosure, driven disc, pedal, holddown spring, driven shaft and clutch plate hub, described driven disc is fixed on described driven shaft by described clutch plate hub, the side of described driven disc is provided with friction plate, described friction plate connects described flywheel, the opposite side of described driven disc connects described clutch plate hub, described driven shaft is provided with spring seat, described holddown spring arranges along described driven shaft axial direction and is connected between described clutch plate hub and described spring seat, described driven disc connects pedal, described driven disc is circular, the side described driven disc deviating from described flywheel is provided with ringwise supporting rib, and described supporting rib is provided with some air blast muscle, and described air blast muscle runs through the two side of described supporting rib and arranges in opposite directions, the surface of described driven disc and described shell is equipped with aln layer, described shell is provided with electric pushrod, microcontroller, temperature transducer and electric fan, and described electric pushrod runs through described shell and is connected with described spring seat, described electric pushrod is provided with sleeve with the joint of the outer surface of described shell, described microcontroller is electrically connected described electric pushrod, temperature transducer and electric fan.
Working principle of the present invention: the present invention in use, is the device in fluid torque converter, with fluid torque converter with the use of.When vehicle start, driver pushes down on the pedal, and the motion of clutch pedal pulls driven disc to lean on backward, and namely driven disc is separated with friction plate, and now driven disc does not contact completely with flywheel, also just there is not Relative friction.When vehicle is when normally travelling, driven disc tightly bears against on the friction plate of flywheel, and the frictional force now between driven disc and friction plate is maximum, keeps relative static friction between input shaft and output shaft, and the two rotating speed is identical.When driver's half pedal, the frictional force of driven disc and friction plate is less than state when namely full interlock state steps on clutch completely, now, sliding friction state between friction plate on clutch driven plate and flywheel, the rotating speed of flywheel is greater than the rotating speed of output shaft, and the power section transmitting out from flywheel passes to gearbox.Under this state, be equivalent to one between motor and driving wheel and be flexible coupling state.
When motor needs abundant warming-up, when making it to be enough to bear various work loads and be unlikely to flame-out; When the speed of a motor vehicle needs height, make it to be enough to ensure reposefully transferring power and be unlikely to the fluctuation of obvious engine power or detonation occur time; By the driven disc that microprocessor control electric pushrod promotion clutch plate hub and then promotion are connected with clutch plate hub, driven disc compression holddown spring, electric pushrod promotes the stroke of hub and driver, and to step on the compression stroke of holddown spring after clutch identical, and then make friction plate identical with the frictional force size that flywheel produces, keep the invariant position of electric pushrod, and then keep the position of holddown spring and state constant, locking is carried out to clutch.Only have and calculated by microcontroller, can not cause when significantly impacting or buffet after the speed conditions of engine speed and the speed of a motor vehicle can ensure locking, lock-up clutch just can be made to engage.
When needs fluid torque converter produces increasing torsion effect to add speed automobile quickly, when engine throttled back is slowed down, when needs braking, gearshift, when vehicle will stop or motor will stall time, microprocessor control electric pushrod sets back, electric pushrod no longer controls the Frotteurism of friction plate and flywheel and keeps, and makes driver control the motion state of clutch plate hub by stepping on pedal and then to control the frictional force size of friction plate and flywheel.
Heat can be produced in the friction plate and wheel friction process of lock-up clutch, in the enclosing housing of fluid torque converter, the fluid be full of in housing absorbs heat, and by the eddy current that formed in fluid torque converter and circulation, heat is delivered on shell, shell is because scribble aln layer, thermal conductivity is good, become outer surface heat being delivered to shell very soon, the temperature transducer be placed on outer surface of outer cover communicates the temperature to microcontroller, when microcontroller judges that controlling the fan entry into service be arranged on shell after temperature exceedes setting value dries, the heat being passed to outer surface of outer cover is dispelled the heat.
The invention has the beneficial effects as follows: 1. on the outside of driven disc, radial direction is provided with the supporting rib of some equidistant distributions, the two side of supporting rib is provided with some air blast muscle in opposite directions, facilitate driven disc that the side that driven disc is connected with friction plate is delivered to opposite side, fricative heat is distributed as early as possible.2. the surface of driven disc and described shell is equipped with aln layer, aluminium nitride belongs to DLC nitride, high temperature resistant, the highest Absorbable organic halogens is to 2200 DEG C, and the rising of intensity temperature declines slower, thermal conductivity is good, thermal expansion coefficient is little, or electrical insulator, and fire retardant are good, the surface being located at driven disc and shell can not only be carried out heat trnasfer fast and be passed by heat, but also because of its temperature tolerance and the high reliability and stability that improve lock-up clutch of intensity.3. received the signal of the temperature transducer transmission being located at case surface by microcontroller, control electric fan rotation in time and dispel the heat to lock-up clutch, radiating effect is good.4. lock-up clutch only comprises shell, flywheel, driven disc, pedal, holddown spring, driven shaft, clutch plate hub, temperature transducer, microcontroller, electric pushrod, electric fan, and structure is simple, and device used is all general commonplace components, with low cost.
To sum up, the structure of this lock-up clutch is simple, and the cooling that effectively can award fluid torque converter compensates, its working method is simple, has good heat absorbing property and result of ventilating heat dissipation, ensures the shelf life of lock-up clutch, overall structure is easy to maintenance, and using effect is good, improves working efficiency.
Scheme two: on the basis of scheme one further, described air blast muscle is arranged symmetrically in the both sides in the middle part of described supporting rib arc respectively, the convenient heat from dish passes from the side be connected with friction plate by supporting rib and air blast muscle.
Scheme three: on the basis of scheme two further, near the sidewall structure twist of the supporting rib in the driven disc center of circle, conveniently passes the heat of driven disc.
Scheme four: on the basis of scheme two further, described air blast muscle is set square triangle, and driven disc is close in one side, is conveniently passed the heat of driven disc by supporting rib.
Scheme five: on the basis of scheme two further, described electric fan is multiple and circumference is arranged on shell, facilitates electric fan to blow heat radiation from all directions to lock-up clutch, accelerates to form cross-ventilation, strengthens heat radiation dynamics.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated:
Fig. 1 is the structural perspective of the embodiment of the present invention;
Fig. 2 is the left view of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described, but not as a limitation of the invention.
In figure, reference character is: flywheel 1, driven disc 2, pedal 3, holddown spring 4, driven shaft 5, clutch plate hub 6, microcontroller 7, electric pushrod 8, friction plate 9, shell 10, temperature transducer 11, electric fan 12, spring seat 13, supporting rib 14, air blast muscle 15.
As shown in Figure 1, a kind of lock-up clutch, comprise shell 10 and be connected to flywheel 1, driven disc 2, pedal 3, holddown spring 4, driven shaft 5 and the clutch plate hub 6 in shell 10, driven disc 2 is connected on driven shaft 5 by clutch plate hub 6 key, as shown in Fig. 2 institute, the left side riveted joint of driven disc 2 has friction plate 9, friction plate 9 frictional connection flywheel 1, the right side socket clutch plate hub 6 of driven disc 2, holddown spring 4 arranges along driven shaft 5 axial direction and is connected to clutch plate hub 6 and is slidably connected between the spring seat 13 on driven shaft 5, and driven disc 2 screw connects pedal 3; Driven disc 2 is in circular, and on the outside of driven disc 2, radial direction is welded with the supporting rib 14 of annular spread, and the two side of supporting rib 14 is welded with four air blast muscle 15 in opposite directions; The surface of driven disc 2 and shell 10 all scribbles aln layer; Shell 10 has two holes, electric pushrod 8 abuts with spring seat 13 through hole, and microcontroller 7, temperature transducer 11 and electric fan 12 are welded on shell 10; Electric pushrod 8 is socketed with sleeve with the joint of the outer surface of shell 10; Microcontroller 7 is electrically connected electric pushrod 8, temperature transducer 11 and electric fan 12.
Air blast muscle 15 is arranged symmetrically in the both sides in the middle part of supporting rib 14 arc respectively, and the convenient heat from dish is passed from the side be connected with friction plate 9 by supporting rib 14 and air blast muscle 15.Near the sidewall structure twist of the supporting rib 14 in driven disc 2 center of circle, conveniently the heat of driven disc 2 is passed.
Air blast muscle 15 cross section is triangular in shape, and driven disc 2 is close in its side, and opposite side is close to the sidewall of supporting rib 14, is conveniently passed by supporting rib 14 by the heat of driven disc 2.
Four electric fan 12 circumferences are welded on shell 10, facilitate electric fan 12 to blow heat radiation from four direction to lock-up clutch, accelerate to form cross-ventilation, strengthen heat radiation dynamics.
Above-described is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; under the prerequisite not departing from structure of the present invention; some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (5)
1. a lock-up clutch, the flywheel, driven disc, pedal, holddown spring, driven shaft and the clutch plate hub that comprise shell and connect in the enclosure, described driven disc is fixed on described driven shaft by described clutch plate hub, the side of described driven disc is provided with friction plate, described friction plate connects described flywheel, the opposite side of described driven disc connects described clutch plate hub, described driven shaft is provided with spring seat, described holddown spring arranges along described driven shaft axial direction and is connected between described clutch plate hub and described spring seat, and described driven disc connects pedal; Described driven disc is circular; It is characterized in that: the side described driven disc deviating from described flywheel is provided with ringwise supporting rib, described supporting rib is provided with some air blast muscle, and described air blast muscle runs through the two side of described supporting rib and arranges in opposite directions; The surface of described driven disc and described shell is equipped with aln layer; Described shell is provided with electric pushrod, microcontroller, temperature transducer and electric fan, and described electric pushrod runs through described shell and is connected with described spring seat; Described electric pushrod is provided with sleeve with the joint of the outer surface of described shell; Described microcontroller is electrically connected described electric pushrod, temperature transducer and electric fan.
2. lock-up clutch according to claim 1, is characterized in that: described air blast muscle is arranged symmetrically in the both sides in the middle part of described supporting rib arc respectively.
3. lock-up clutch according to claim 2, is characterized in that: near the sidewall structure twist of the supporting rib in the driven disc center of circle.
4. lock-up clutch according to claim 2, is characterized in that: described air blast muscle is set square triangle, and driven disc is close in one side.
5. lock-up clutch according to claim 2, is characterized in that: described electric fan is multiple and circumference is arranged on shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510371415.4A CN104964018A (en) | 2015-06-30 | 2015-06-30 | Lock-up clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510371415.4A CN104964018A (en) | 2015-06-30 | 2015-06-30 | Lock-up clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104964018A true CN104964018A (en) | 2015-10-07 |
Family
ID=54218069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510371415.4A Pending CN104964018A (en) | 2015-06-30 | 2015-06-30 | Lock-up clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104964018A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4224832A (en) * | 1977-12-29 | 1980-09-30 | Itt Industries, Inc. | Electromotive power brake |
| US4395883A (en) * | 1980-12-22 | 1983-08-02 | General Motors Corporation | Electric brake booster |
| JPH0488219A (en) * | 1990-07-31 | 1992-03-23 | Usui Internatl Ind Co Ltd | Temperature sensing fluid type coupling device |
| WO2006001625A1 (en) * | 2004-06-28 | 2006-01-05 | Jeonju Machinery Research Center | Semi auto clutch driving apparatus and driving method |
| CN1821626A (en) * | 2005-02-18 | 2006-08-23 | 株式会社日立制作所 | Control device, control method, and control system for vehicular gear-type transmission |
| CN201457041U (en) * | 2009-07-20 | 2010-05-12 | 江忠军 | Automobile transmission device with semiautomatic transmission |
| CN102155502A (en) * | 2011-04-28 | 2011-08-17 | 天津市松正电动汽车技术股份有限公司 | Clutch control system with emergency pattern |
| CN102297218A (en) * | 2011-08-12 | 2011-12-28 | 浙江金刚汽车有限公司 | Clutch separation system protection device |
| KR101216798B1 (en) * | 2012-01-27 | 2012-12-28 | 원태웅 | Motor utilizing clutch control and fuel reduction system |
| CN104373478A (en) * | 2014-10-27 | 2015-02-25 | 常州市武进长江滚针轴承有限公司 | Friction clutch |
| CN204213206U (en) * | 2014-09-23 | 2015-03-18 | 宁波宏协离合器有限公司 | A kind of clutch compressing disc of quick heat radiating |
| CN204784549U (en) * | 2015-06-30 | 2015-11-18 | 重庆友擘机械制造有限公司 | Lock -up clutch |
-
2015
- 2015-06-30 CN CN201510371415.4A patent/CN104964018A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4224832A (en) * | 1977-12-29 | 1980-09-30 | Itt Industries, Inc. | Electromotive power brake |
| US4395883A (en) * | 1980-12-22 | 1983-08-02 | General Motors Corporation | Electric brake booster |
| JPH0488219A (en) * | 1990-07-31 | 1992-03-23 | Usui Internatl Ind Co Ltd | Temperature sensing fluid type coupling device |
| WO2006001625A1 (en) * | 2004-06-28 | 2006-01-05 | Jeonju Machinery Research Center | Semi auto clutch driving apparatus and driving method |
| KR20060000265A (en) * | 2004-06-28 | 2006-01-06 | 재단법인 전주기계산업리서치센터 | Semi auto clutch driving apparatus and driving method |
| CN1821626A (en) * | 2005-02-18 | 2006-08-23 | 株式会社日立制作所 | Control device, control method, and control system for vehicular gear-type transmission |
| CN201457041U (en) * | 2009-07-20 | 2010-05-12 | 江忠军 | Automobile transmission device with semiautomatic transmission |
| CN102155502A (en) * | 2011-04-28 | 2011-08-17 | 天津市松正电动汽车技术股份有限公司 | Clutch control system with emergency pattern |
| CN102297218A (en) * | 2011-08-12 | 2011-12-28 | 浙江金刚汽车有限公司 | Clutch separation system protection device |
| KR101216798B1 (en) * | 2012-01-27 | 2012-12-28 | 원태웅 | Motor utilizing clutch control and fuel reduction system |
| CN204213206U (en) * | 2014-09-23 | 2015-03-18 | 宁波宏协离合器有限公司 | A kind of clutch compressing disc of quick heat radiating |
| CN104373478A (en) * | 2014-10-27 | 2015-02-25 | 常州市武进长江滚针轴承有限公司 | Friction clutch |
| CN204784549U (en) * | 2015-06-30 | 2015-11-18 | 重庆友擘机械制造有限公司 | Lock -up clutch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7810592B2 (en) | Light hybrid vehicle configuration | |
| EP0793033A1 (en) | Driveline retarder with ball ramp loaded friction plates | |
| US20110180362A1 (en) | Fan clutch apparatus and methods | |
| CN204784549U (en) | Lock -up clutch | |
| CN204755644U (en) | Passageway formula clutch pressure plate | |
| CN104863984B (en) | A kind of new automobile clutch | |
| CN104964018A (en) | Lock-up clutch | |
| CN106143445A (en) | A kind of lorry brake cooling system | |
| CN201599092U (en) | Engine power transmission mechanism adaptable to hybrid electric vehicles | |
| CN103410698B (en) | A kind of Brake energy recovery of high speed rotating shaft and auxiliary actuating apparatus | |
| CN106257086A (en) | A kind of double-piston drum type hydraulic brake of band louvre | |
| KR20120134863A (en) | A method for controlling voltage of a electromagnetic clutch for a vehicle | |
| CN204253728U (en) | Engine flywheel with U-shaped connecting structure | |
| US7237665B2 (en) | Thermal energy transfer limited rotating shaft for a pneumatic fan drive system | |
| CN209294335U (en) | A kind of vehicle clutch heat dissipation flywheel | |
| CN114738402B (en) | Automobile brake disc with shockproof function | |
| CN207333494U (en) | A kind of clutch driven plate | |
| CN206377182U (en) | A kind of lorry clutch plate | |
| CN205423589U (en) | Friction formula automobile clutch structure | |
| CN219257672U (en) | Heat-insulating steel clamp for aviation brake wheel | |
| KR100531659B1 (en) | Disk & Hub Assembly for Electronic Clutch_ | |
| CN218207537U (en) | Driven disc of split supporting plate clutch | |
| CN110081091A (en) | A kind of magnetic powder cluth | |
| CN219809065U (en) | Heat radiation structure of silicone oil fan clutch | |
| CN216812619U (en) | Brake hub with good heat dissipation performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151007 |
|
| WD01 | Invention patent application deemed withdrawn after publication |