CN102767416A - Electromagnetically-controlled driving device of engine cooling fan and implementation method of electromagnetically-controlled driving device - Google Patents
Electromagnetically-controlled driving device of engine cooling fan and implementation method of electromagnetically-controlled driving device Download PDFInfo
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- CN102767416A CN102767416A CN2012102600044A CN201210260004A CN102767416A CN 102767416 A CN102767416 A CN 102767416A CN 2012102600044 A CN2012102600044 A CN 2012102600044A CN 201210260004 A CN201210260004 A CN 201210260004A CN 102767416 A CN102767416 A CN 102767416A
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Abstract
The invention discloses an electromagnetically-controlled driving device of an engine cooling fan. The electromagnetically-controlled driving device comprises a shaft, a first bearing, a second bearing, a coil, a rotor, a belt pulley, a fan nonlinear speed regulation module, a driven disc, a mounting flange, a one-way clutch decoupling wheel, a fan and an electronic control element. The invention further provides an implementation method of the electromagnetically-controlled driving device of the engine cooling fan. The problems of proneness to relative slip, complexity in structure, proneness to high-temperature failure and fan blade breakage, poor engine working reliability, high belt wear, high produced noise and the like in the prior art are solved, and the electromagnetically-controlled driving device of the engine cooling fan has the advantages of simple structure, high control precision, fast response, low vibration, low noise, nonlinear speed regulation, vibration reduction and the like.
Description
Technical field
The present invention relates to motor car engine heat management system technology, is a kind of Electromagnetic Control cooling fan of engine drive unit and its implementation specifically.
Background technique
Show that according to relevant research data the energy consumption of motor car engine 5 ~ 10% is on the cooling fan of motor.The energy that loses on the cooling fan comprises: the vibration loss in (1), the fan running; (2), frictional loss in the fan running etc.Electromagnetic Control cooling fan of engine one-way clutch decoupling zero wheel can well solve the vibration problem of fan in running; Non-linear speed adjusting module can be regulated the cooling fan of engine rotating speed, energy saving according to engine operating condition.Consider that from practicing thrift energy source of car automobile cooling fan should be according to the heat load working condition requirement of motor car engine, on the one hand, fan rotates when engine heat load is big, thereby is engine radiating; On the other hand, engine operating temperature is lower or when normal working temperature, fan should stop the rotation, and moves under supercooled operating mode to prevent motor.Therefore, the automatic clutch technology of automobile engine cooling fan becomes one of key technology of vehicle energy saving.
Engaging and disengaging gear is realized combining and separating according to tribology principle, can realize clutch through modes such as machinery, air pressure, hydraulic pressure and electromagnetism usually.General engine blower is positioned on the independent bearing journal of motor head; Utilize air pressure and Electromagnetic Control to realize that the fan clutch of clutch has a belt pulley usually; Band transmission capable of using drives, and the bearing of belt pulley has a non rotatable bearing journal usually.
Exist between the silicon oil clutch principal and subordinate Moving plate of traditional driving fan trackslip relatively, shortcoming that complex structure and high temperature lost efficacy easily.And the dry friction fan clutch of employing Electromagnetic Control through the size of electric current in the control electromagnetic coil, carries out non-linear, accurate control to frictional force, and arranges relatively easy; In assembling, the belt pulley of first installing drive fan is installed rubbing device again, installs to have one-way clutch and decoupling zero device driven disc again, and is reverse during dismounting.This assemble sequence has easy, the advantage for ease of maintenaince of dismounting.
Cooling fan of engine is a high-speed rotary part, and bigger vibration can appear in blade.If fan hub is direct and running shaft is rigidly connected, this vibration will be directly delivered on the running shaft, and then influences the vibration of whole motor head accessory drive system.When serious vibration, can make the fan blade fracture, the situation of radiator occur breaking, thereby influence the reliability of engine operation.In addition; Its equivalent moment of inertia of the fan of high speed rotating is bigger; If fan hub directly is rigidly connected with running shaft, slow down or shut down moment when motor is anxious, fan still rotates with bigger rotating speed; This will increase the slide relative between band and wheel, thus problems such as the wearing and tearing of aggravation belt, generation noise.
Summary of the invention
The objective of the invention is to overcome the deficiency that above existing technology exists, a kind of simple in structure, control accuracy is high, response is fast, vibration is little, noise is low Electromagnetic Control cooling fan of engine drive unit with non-linear speed governing and damping effect is provided.
Another purpose of the present invention is to provide a kind of implementation method of Electromagnetic Control cooling fan of engine drive unit.
In order to achieve the above object, the present invention adopts following technological scheme: a kind of Electromagnetic Control cooling fan of engine drive unit comprises the clutch shaft bearing and second bearing that are set on the axle; The outside sheathed coil of clutch shaft bearing, the coil outside is provided with rotor, and rotor exterior is provided with belt pulley; Belt pulley exterior edge face inner and rotor is provided with the non-linear speed adjusting module of fan; The non-linear speed adjusting module of fan exterior edge face is provided with driven disc, and driven disc is set on second bearing, and the driven disc outer end is provided with mounting flange; The affixed one-way clutch decoupling zero wheel of mounting flange one end face; One-way clutch decoupling zero wheel other end and fan mounting flange are affixed, and the fan mounting flange is connected with fan, and coil is connected with electronic control component.
As a kind of preferred construction, the non-linear speed adjusting module of said fan comprises transmission pin, key, armature, spring, logical disk, spacer ring, friction disk and magnet; Wherein, armature is set on the rotor, and belt pulley connects armature and carry-over moment through key; Armature closely is connected through the transmission pin with spacer ring with spring, logical disk, and the spacer ring exterior edge face is provided with friction disk, and spacer ring and friction disk are provided with through hole; Magnet is set in the through hole, and magnet is connected with logical disk.
As a kind of preferred construction, said one-way clutch decoupling zero wheel comprises overrunning clutch, Arc Spring and Arc Spring mounting disc; Wherein, Arc Spring mounting disc and mounting flange are affixed, in the Arc Spring mounting disc Arc Spring are installed, and Arc Spring is connected with overrunning clutch and Arc Spring mounting disc through housing.
As a kind of preferred construction, said axle is a multidiameter shaft.
In order to strengthen radiating effect, said driven disc one end face is provided with radiating fin.
A kind of implementation method of Electromagnetic Control cooling fan of engine drive unit may further comprise the steps:
(1), the information of gathering predefined parameter through electronic control component, and be converted into electrical signal through editor's program;
(2), the size of current transmitted according to electronic control component of coil, the magnetic field that produces corresponding size, magnetic field are passed rotor and are produced magnetic attraction armature;
(3), armature moves along belt pulley axis direction to belt pulley one side under the effect of electromagnetic force, thereby the logical disk of control is applied to the impacting force on the spacer ring;
(4), the size of spacer ring impacting force has been controlled the size of frictional force between friction disk and the driven disc, thereby has been regulated the height of driven disc rotating speed;
(5), when the frictional force between friction disk and the driven disc becomes big, driven disc can drive the fan high speed rotating; When the frictional force between friction disk and the driven disc diminished, fan was just worked under slow-speed of revolution operating mode;
(6), when the rotating speed of belt pulley rotating speed greater than fan, this moment, overrunning clutch was in bonding state, belt pulley drives fan and rotates together; When the rotating speed of belt pulley was lower than the rotating speed of fan, overrunning clutch was in separated state, and fan can rotate freely, and this moment, the fan of high speed rotating can anti-drive pulley, can not cause slide relative bigger between belt pulley and belt yet.
Said step (1) electronic control component is gathered the information of predefined parameter, comprises engine operating temperature, the speed of a motor vehicle, ambient temperature and radiator temperature.
Said step (4) comprising:
(4-1), when friction disk combines with driven disc; The powerful impact force that Arc Spring buffering friction disk produces when engaging suddenly with driven disc; If the rotating speed of belt pulley is greater than the rotating speed of fan, this moment, overrunning clutch was in bonding state, and belt pulley drives fan and rotates together;
(4-2), slow down or shutdown when motor is anxious; When the rotating speed of belt pulley was lower than the rotating speed of fan, overrunning clutch was in separated state, and fan can rotate freely; This moment, the fan of high speed rotating can anti-drive pulley, can not cause slide relative bigger between belt pulley and belt yet.
Realization principle of the present invention:
A kind of Electromagnetic Control cooling fan of engine drive unit comprises the clutch shaft bearing and second bearing that are set on the axle, the outside sheathed coil of clutch shaft bearing; The coil outside is provided with rotor, and rotor exterior is provided with belt pulley, and belt pulley exterior edge face inner and rotor is provided with the non-linear speed adjusting module of fan; The non-linear speed adjusting module of fan exterior edge face is provided with driven disc, and driven disc is set on second bearing, and the driven disc outer end is provided with mounting flange; The affixed one-way clutch decoupling zero wheel of mounting flange one end face; One-way clutch decoupling zero wheel other end and fan mounting flange are affixed, and the fan mounting flange is connected with fan, and coil is connected with electronic control component.
Electronic control component is gathered the information of predefined parameter, and is converted into electrical signal through editor's program, produces magnetic field according to size of current then; Attract armature, the pressure that then acts on the spring changes, thereby the logical disk of control is applied to the impacting force on the spacer ring; The size of spacer ring impacting force has been controlled the size of frictional force between friction disk and driven disc, and when frictional force was enough big, driven disc can drive the fan high speed rotating; When frictional force hour, fan is just worked under slow-speed of revolution operating mode, when the rotating speed of the belt pulley rotating speed greater than fan; This moment, overrunning clutch was in bonding state, and belt pulley drives fan and rotates together; When the rotating speed of belt pulley was lower than the rotating speed of fan, overrunning clutch was in separated state, and fan can rotate freely, and this moment, the fan of high speed rotating can anti-drive pulley, can not cause slide relative bigger between belt pulley and belt yet.
The present invention has following advantage and effect with respect to existing technology:
1, the present invention has adopted and has comprised the clutch shaft bearing and second bearing that is set on the axle, the outside sheathed coil of clutch shaft bearing, and the coil outside is provided with rotor; Rotor exterior is provided with belt pulley; Belt pulley exterior edge face inner and rotor is provided with the non-linear speed adjusting module of fan, and the non-linear speed adjusting module of fan exterior edge face is provided with driven disc, and driven disc is set on second bearing; Mounting flange is set on the driven disc; Mounting flange connects one-way clutch decoupling zero wheel, and one-way clutch decoupling zero wheel and fan mounting flange are affixed, and the fan mounting flange is connected with fan; Coil is connected with the electronic control component signal, have simple in structure, control accuracy is high, response is fast, vibration is little, noise is low has characteristics such as non-linear speed governing and damping effect.
2, the armature among the present invention moves along belt pulley axis direction to belt pulley one side under the effect of electromagnetic force, thereby the logical disk of control is applied to the impacting force on the spacer ring; The size of spacer ring impacting force has been controlled the size of frictional force between friction disk and the driven disc, thereby regulates the height of driven disc rotating speed, therefore, has non-linear speed-regulating function.
Slow down or shutdown if 3, motor is anxious among the present invention; When the rotating speed of belt pulley was lower than the rotating speed of fan, overrunning clutch was in separated state, and fan can rotate freely; This moment, the fan of high speed rotating can anti-drive pulley; Also can not cause slide relative bigger between belt pulley and belt, this has just effectively reduced the friction between belt pulley and the belt, improves the working life of belt and reduces the frictional noise between band-wheel.
4, the Arc Spring among the present invention has buffer function, and the powerful impact force that produces in the time of can cushioning friction disk and engage suddenly with driven disc makes the fan can smooth running.
The rigidity of the Arc Spring that 5, coupling is suitable; Can be with the vibration of large rotating inertia fan and motor head accessory drive system each take turns the vibration uncoupling with belt, thereby blade vibration and to the influence of motor head accessory drive system when reducing the fan rotation.
Description of drawings
Fig. 1 is the overall structure schematic representation of a kind of Electromagnetic Control cooling fan of engine of the present invention drive unit;
Fig. 2 is the local structure for amplifying schematic representation of the non-linear speed adjusting module of a kind of Electromagnetic Control cooling fan of engine of the present invention drive unit fan;
Fig. 3 takes turns local structure for amplifying schematic representation for one-way clutch decoupling zero in a kind of Electromagnetic Control cooling fan of engine of the present invention drive unit.
Label and title are following among the figure:
| 1 | Axle | 2 | Clutch shaft bearing |
| 3 | Second bearing | 4 | |
| 5 | |
6 | |
| 7 | The non-linear speed adjusting module of |
8 | |
| 9 | |
10 | One-way clutch decoupling zero |
| 11 | The |
12 | |
| 13 | |
14 | |
| 15 | |
16 | |
| 17 | |
18 | |
| 19 | |
20 | |
| 21 | Overrunning |
22 | Arc Spring |
| 23 | The Arc |
24 | |
| 25 | Radiating fin |
Embodiment
For ease of it will be appreciated by those skilled in the art that the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Embodiment 1:
Shown in Fig. 1 ~ 3, a kind of Electromagnetic Control cooling fan of engine drive unit comprises the clutch shaft bearing 2 and second bearing 3 that are set on the axle 1; Clutch shaft bearing 1 outside sheathed coil 4, coil 4 outsides are provided with rotor 5, rotor 5 outer installment belt pulleys 6; Belt pulley 6 exterior edge faces inner and rotor 5 are provided with the non-linear speed adjusting module 7 of fan; The non-linear speed adjusting module of fan 7 exterior edge faces are provided with driven disc 8, and driven disc 8 is set on second bearing 3, and driven disc 8 outer ends are provided with mounting flange 9; The affixed one-way clutch decoupling zero wheel 10 of mounting flange 9 one end faces; 10 other ends are taken turns in the one-way clutch decoupling zero and fan mounting flange 11 is affixed, and fan mounting flange 11 is connected with fan 12, and coil 4 is connected with electronic control component 13.In the present embodiment, the Placement of mounting flange 9 and fan mounting flange 11 is to connect with bolt, and the parts up and down among Fig. 1 are symmetrical up and down along central shaft.
The non-linear speed adjusting module 7 of said fan comprises transmission pin, key 14, armature 15, spring 16, logical disk 17, spacer ring 18, friction disk 19 and magnet 20; Wherein, Armature 15 is set on the rotor 5, and belt pulley 6 connects armature 15 and carry-over moments through key 14, armature 15 with spring 16, lead to disk 17 and closely be connected through the transmission pin with spacer ring 18; Spacer ring 18 exterior edge faces are provided with friction disk 19; Spacer ring 18 is provided with through hole with friction disk 19, and magnet 20 is set in the through hole, and magnet 20 is connected with logical disk 17.
The working principle of the non-linear speed adjusting module 7 of fan is: the various information (comprising engine operating temperature, the speed of a motor vehicle, ambient temperature and radiator temperature etc.) by electronic control component 13 is gathered predefined parameter are converted into electrical signal through the program of editing; The size of current that coil 4 transmits according to electronic control component 13, the magnetic field that produces corresponding size, magnetic field are passed rotor 5 and are produced magnetic attraction armature 15; Armature 15 moves along belt pulley 6 axial directions to belt pulley 6 one sides under the effect of electromagnetic force, thereby the logical disk 17 of control is applied to the impacting force on the spacer ring 18; The size of spacer ring 18 impacting forces has been controlled the size of friction disk 19 and 8 frictional force of driven disc, thereby regulates the height of driven disc 8 rotating speeds.Therefore, this fan drive device has non-linear speed-regulating function.
When electronic control component 13 break down and the coil no current through the time, friction disk 19 can be in normal bonding state with driven disc 8, thereby guarantees that belt pulley 6 can 12 rotations of driven fans, and avoids motor car engine under the operating mode of heat load overload, to move.
Said one-way clutch decoupling zero wheel 10 comprises overrunning clutch 21, Arc Spring 22 and Arc Spring mounting disc 23; Wherein, Arc Spring mounting disc 23 is affixed with mounting flange 9, and Arc Spring 22 is installed in the Arc Spring mounting disc 23, and Arc Spring 22 is connected with overrunning clutch 21 and Arc Spring mounting disc 23 through housing 24.
One-way clutch decoupling zero wheel working principle is: the first, when friction disk 19 combines with driven disc 8, if the rotating speed of belt pulley 6 greater than the rotating speed of fan 12, overrunning clutch 21 is in bonding state at this moment, belt pulley 6 drive fans 12 rotate together.Second; Slow down or shutdown if motor is anxious; When the rotating speed of belt pulley 6 was lower than the rotating speed of fan 12, overrunning clutch 21 was in separated state, and fan 12 can rotate freely; This moment, the fan of high speed rotating can anti-drive pulley 6, can not cause slide relative bigger between belt pulley 6 and belt yet.This has just effectively reduced the friction between belt pulley 6 and the belt, improves the working life of belt and reduces the frictional noise between band-wheel.The 3rd, Arc Spring 22 has buffer function, can cushion the powerful impact force that produces when friction disk 19 engages suddenly with driven disc 8, guarantees that fan 12 can smooth running.The 4th; The rigidity of mating suitable Arc Spring 22; Can be with the vibration of large rotating inertia fan and motor head accessory drive system each take turns the vibration uncoupling with belt, thereby blade vibration and to the influence of motor head accessory drive system when reducing fan 12 rotations.
A kind of implementation method of Electromagnetic Control cooling fan of engine drive unit may further comprise the steps:
(1), the information of gathering predefined parameters through electronic control component 13, and be converted into electrical signal through editor's program;
(2), the size of current transmitted according to electronic control component 13 of coil 4, the magnetic field that produces corresponding size, magnetic field are passed rotor 5 and are produced magnetic attraction armature 15;
(3), armature 15 moves along belt pulley 6 axial directions to belt pulley 6 one sides under the effect of electromagnetic force, thereby the logical disk 17 of control is applied to the impacting force on the spacer ring 18;
(4), the size of spacer ring 18 impacting forces has been controlled the size of frictional force between friction disk 19 and the driven disc 8, thereby has been regulated the height of driven disc 8 rotating speeds;
(5), when the frictional force between friction disk 19 and the driven disc 8 becomes big, driven disc 8 can drive fans 12 high speed rotating; When the frictional force between friction disk 19 and the driven disc 8 diminished, fan 12 was just worked under slow-speed of revolution operating mode;
(6), when the rotating speed of belt pulley 6 rotating speed greater than fan 12, this moment, overrunning clutch 21 was in bonding state, belt pulley 6 drives fans 12 and rotates together; When the rotating speed of belt pulley 6 was lower than the rotating speed of fan 12, overrunning clutch 21 was in separated state, and fan 12 can rotate freely, and this moment, the fan 12 of high speed rotating can anti-drive pulley, can not cause slide relative bigger between belt pulley 6 and belt yet.
Rotation speed of the fan is that 600 ~ 1200r/min is called low speed rotation generally speaking, and 1200 ~ 3000r/min is called high speed rotating.
The information that said step (1) electronic control component 13 is gathered predefined parameter comprises engine operating temperature, the speed of a motor vehicle, ambient temperature and radiator temperature.
Said step (4) comprising:
(4-1), when friction disk 19 combines with driven disc 8; The powerful impact force that Arc Spring 22 buffering friction disks 19 produce when engaging suddenly with driven disc 8; If the rotating speed of belt pulley 6 is greater than the rotating speed of fan 12; This moment, overrunning clutch 21 was in bonding state, and belt pulley 6 drives fan 12 and rotates together;
(4-2), slow down or shutdown when motor is anxious; When the rotating speed of belt pulley 6 is lower than the rotating speed of fan 12; Overrunning clutch 21 is in separated state; Fan 12 can rotate freely, and this moment, the fan 12 of high speed rotating can anti-drive pulley 6, can not cause slide relative bigger between belt pulley 6 and belt yet.
Under the even accelerating mode of motor (1000r/min ~ 5500r/min), one-way clutch decoupling zero wheel 10 is installed after, all reduce in the fluctuation of speed of whole engine speed range internal fan 12; Engine speed is in 1000 ~ 2000r/min scope, and the fluctuation of speed of fan 12 reduces more than 50%.This shows increases one-way clutch decoupling zero wheel 10, and each takes turns the vibration uncoupling with belt to Arc Spring 22 with large rotating inertia fan 12 and motor head accessory drive system, thereby has reduced the vibration of fan 12 and motor head accessory drive system.
Above-mentioned embodiment is the preferred embodiments of the present invention, can not limit the present invention, and other any change or other equivalent substitute mode that does not deviate from technological scheme of the present invention and made is included within protection scope of the present invention.
Claims (8)
1. an Electromagnetic Control cooling fan of engine drive unit is characterized in that: comprise the clutch shaft bearing and second bearing that are set on the axle, the outside sheathed coil of clutch shaft bearing; The coil outside is provided with rotor, and rotor exterior is provided with belt pulley, and belt pulley exterior edge face inner and rotor is provided with the non-linear speed adjusting module of fan; The non-linear speed adjusting module of fan exterior edge face is provided with driven disc, and driven disc is set on second bearing, and the driven disc outer end is provided with mounting flange; The affixed one-way clutch decoupling zero wheel of mounting flange one end face; One-way clutch decoupling zero wheel other end and fan mounting flange are affixed, and the fan mounting flange is connected with fan, and coil is connected with electronic control component.
2. Electromagnetic Control cooling fan of engine drive unit according to claim 1 is characterized in that: the non-linear speed adjusting module of said fan comprises transmission pin, key, armature, spring, logical disk, spacer ring, friction disk and magnet; Wherein, armature is set on the rotor, and belt pulley connects armature and carry-over moment through key; Armature closely is connected through the transmission pin with spacer ring with spring, logical disk, and the spacer ring exterior edge face is provided with friction disk, and spacer ring and friction disk are provided with through hole; Magnet is set in the through hole, and magnet is connected with logical disk.
3. Electromagnetic Control cooling fan of engine drive unit according to claim 1 is characterized in that: said one-way clutch decoupling zero wheel comprises overrunning clutch, Arc Spring and Arc Spring mounting disc; Wherein, Arc Spring mounting disc and mounting flange are affixed, in the Arc Spring mounting disc Arc Spring are installed, and Arc Spring is connected with overrunning clutch and Arc Spring mounting disc through housing.
4. Electromagnetic Control cooling fan of engine drive unit according to claim 1 is characterized in that: said axle is multidiameter shaft.
5. Electromagnetic Control cooling fan of engine drive unit according to claim 1 is characterized in that: said driven disc one end face is provided with radiating fin.
6. the implementation method of an Electromagnetic Control cooling fan of engine drive unit is characterized in that, may further comprise the steps:
(1), the information of gathering predefined parameter through electronic control component, and be converted into electrical signal through editor's program;
(2), the size of current transmitted according to electronic control component of coil, the magnetic field that produces corresponding size, magnetic field are passed rotor and are produced magnetic attraction armature;
(3), armature moves along belt pulley axis direction to belt pulley one side under the effect of electromagnetic force, thereby the logical disk of control is applied to the impacting force on the spacer ring;
(4), the size of spacer ring impacting force has been controlled the size of frictional force between friction disk and the driven disc, thereby has been regulated the height of driven disc rotating speed;
(5), when the frictional force between friction disk and the driven disc becomes big, driven disc can drive the fan high speed rotating; When the frictional force between friction disk and the driven disc diminished, fan was just worked under slow-speed of revolution operating mode;
(6), when the rotating speed of belt pulley rotating speed greater than fan, this moment, overrunning clutch was in bonding state, belt pulley drives fan and rotates together; When the rotating speed of belt pulley was lower than the rotating speed of fan, overrunning clutch was in separated state, and fan can rotate freely, and this moment, the fan of high speed rotating can anti-drive pulley, can not cause slide relative bigger between belt pulley and belt yet.
7. the implementation method of Electromagnetic Control cooling fan of engine drive unit according to claim 6; It is characterized in that: said step (1) electronic control component is gathered the information of predefined parameter, comprises engine operating temperature, the speed of a motor vehicle, ambient temperature and radiator temperature.
8. the implementation method of Electromagnetic Control cooling fan of engine drive unit according to claim 6 is characterized in that, said step (4) comprising:
(4-1), when friction disk combines with driven disc; The powerful impact force that Arc Spring buffering friction disk produces when engaging suddenly with driven disc; If the rotating speed of belt pulley is greater than the rotating speed of fan, this moment, overrunning clutch was in bonding state, and belt pulley drives fan and rotates together;
(4-2), slow down or shutdown when motor is anxious; When the rotating speed of belt pulley was lower than the rotating speed of fan, overrunning clutch was in separated state, and fan can rotate freely; This moment, the fan of high speed rotating can anti-drive pulley, can not cause slide relative bigger between belt pulley and belt yet.
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| CN201210260004.4A CN102767416B (en) | 2012-07-25 | 2012-07-25 | Electromagnetically-controlled driving device of engine cooling fan and implementation method of electromagnetically-controlled driving device |
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| CN201210260004.4A CN102767416B (en) | 2012-07-25 | 2012-07-25 | Electromagnetically-controlled driving device of engine cooling fan and implementation method of electromagnetically-controlled driving device |
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| CN103437878B (en) * | 2013-09-05 | 2016-01-20 | 浙江耐士伦机械有限公司 | Heavily card reverses damping magnetic clutch assembly |
| CN103437878A (en) * | 2013-09-05 | 2013-12-11 | 浙江耐士伦机械有限公司 | Heavy truck tortional vibration damping electromagnetic clutch assembly |
| CN109923325B (en) * | 2016-11-11 | 2020-09-22 | 三电汽车部件株式会社 | Electromagnetic clutch and compressor comprising same |
| CN109923325A (en) * | 2016-11-11 | 2019-06-21 | 三电汽车部件株式会社 | Electromagnetic clutch and compressor including the electromagnetic clutch |
| CN110410192A (en) * | 2019-08-29 | 2019-11-05 | 上海三一重机股份有限公司 | Clutch and engine |
| CN110657019A (en) * | 2019-09-29 | 2020-01-07 | 潍柴动力股份有限公司 | Engine wheel train, engine assembly and vehicle |
| CN111140384A (en) * | 2019-12-30 | 2020-05-12 | 潍柴动力股份有限公司 | Engine speed change control method, engine speed change control device, engine speed change control equipment and storage medium |
| CN111140384B (en) * | 2019-12-30 | 2022-07-15 | 潍柴动力股份有限公司 | Engine speed change control method, engine speed change control device, engine speed change control apparatus, and storage medium |
| CN112081885A (en) * | 2020-09-02 | 2020-12-15 | 一汽解放青岛汽车有限公司 | Fan speed regulating device |
| CN112391708A (en) * | 2020-11-04 | 2021-02-23 | 衡阳新新纺织机械有限公司 | Locking device for spinning spindle or twisting spindle |
| CN112595099A (en) * | 2020-12-03 | 2021-04-02 | 攀钢集团重庆钛业有限公司 | Control method for reducing influence of kiln front plate frame fault on feeding stability of rotary kiln |
| CN113942655A (en) * | 2021-10-09 | 2022-01-18 | 中国直升机设计研究所 | Light-duty helicopter piston sender transmission system |
| CN113942655B (en) * | 2021-10-09 | 2023-09-19 | 中国直升机设计研究所 | Light helicopter piston engine transmission system |
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