CN202883811U - Rear-mounted electric control silicon oil fan clutch - Google Patents
Rear-mounted electric control silicon oil fan clutch Download PDFInfo
- Publication number
- CN202883811U CN202883811U CN 201220543550 CN201220543550U CN202883811U CN 202883811 U CN202883811 U CN 202883811U CN 201220543550 CN201220543550 CN 201220543550 CN 201220543550 U CN201220543550 U CN 201220543550U CN 202883811 U CN202883811 U CN 202883811U
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- housing
- valve assembly
- solenoid valve
- driving shaft
- valve block
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model discloses a rear-mounted electric control silicon oil fan clutch. The rear-mounted electric control silicon oil fan clutch comprises a driving shaft, a shell body and a front cover. The shell body is connected with the driving shaft through a bearing. The shell body and the front cover are fixedly connected and move synchronously. A driving plate and a driven plate are arranged between the shell body and the front cover. The driving plate is fixedly connected with the driving shaft and rotates with the driving shaft coaxially. The driven plate is fixedly connected with the front cover. A fan is installed on the shell body. An oil storage cavity and a working cavity are arranged between the shell body and the front cover. A breakover oil storage cavity and an oil outlet of the working cavity are arranged between the oil storage cavity and the working cavity. A drainback passage which is communicated with the oil storage cavity is formed in the working cavity. Open and close of the oil outlet is controlled by an electromagnetic valve assembly. The electromagnetic valve assembly is arranged at the back end of the shelf body. A central controller is used for controlling the electromagnetic valve assembly to switch on or off. A rotating speed sensor is arranged between the electromagnetic valve assembly and the shell body. The rotating speed sensor transmits signals to the center controller. The rear-mounted electric control silicon oil fan clutch has the advantages that stepless speed change can be realized, energy is saved, and consumption is reduced.
Description
Technical field
The utility model relates to a kind of cooling system of vehicle, especially a kind of rear-mounted automatically controlled silicon oil filled fan clutch.
Background technique
Fan clutch is a kind of radiator cooler of vehicle, is applied in the cooling system of vehicle.Vehicle in the process of moving because the variation of environmental conditions and runnability, the hot situation of motor also changing, therefore, must be regulated the intensity of cooling of motor at any time.For example, during the broiling summer, motor is worked the temperature of cooling liquid when very high under the large load of low speed, fan should High Rotation Speed to increase cooling air quantity, strengthen radiating effect.And in temperature when low of cooling liquid in the winter of cold, work on not only in vain consumption of engine power but also can produce very large noise of fan.Because fan is the consumer of engine power, be about 10% of engine power when maximum, in order to reduce fan power consumption, reduce noise and wearing and tearing, prevent that motor is excessively cold, reduce to pollute, therefore energy saving is regulated its intensity of cooling according to the hot situation of motor and at any time and is just seemed and extremely be necessary.The device silicon oil filled fan clutch then is one of method that realizes this adjusting between blower pulley and cooling fan.And silicon oil filled fan clutch is to use silicone oil as medium, utilizes the full-bodied characteristic transmitting torque of silicone oil.
General silicon oil filled fan clutch comprises front cap assembly, housing assembly, valve block assembly and driving shaft, housing assembly is connected with driving shaft, driving shaft and engine synchronization rotate, housing assembly is fixedly connected with front cap assembly and is synchronized with the movement, be provided with oil storage chamber and active chamber between housing assembly and the front cap assembly, silicone oil is housed in the oil storage chamber, be provided with the oil outlet of conducting oil storage chamber and active chamber between oil storage chamber and the active chamber, active chamber offers the drainback passage that communicates with oil storage chamber, the valve block assembly is positioned at the active chamber position corresponding with oil outlet, the switch of valve block assembly is by the control of bimetal temp-sensitive apparatus, and the valve block assembly is closed condition at ordinary times.
The solenoid valve assembly is positioned at housing assembly with respect to the other end that is connected with front cap assembly, the solenoid valve assembly comprises electromagnetic coil, electromagnetic coil is arranged with magnetism-guiding hood outward, be provided with the bearing that is connected with driving shaft in the magnetism-guiding hood, magnetism-guiding hood is connected with bearing by bearing bracket, and magnetism-guiding hood is fixedly connected with bearing bracket.Because general magnetism-guiding hood and bearing bracket made by same material, their magnetic resistance is identical, therefore the inner magnetic line of force that produces of the electromagnetic coil in the above-mentioned silicon oil filled fan clutch can pass magnetism-guiding hood, then be delivered to driving shaft by the small air gap between bearing bracket and the driving shaft through bearing bracket, pass through successively again static gag bit, moving armature, finally get back to the inner closed-loop path that forms of electromagnetic coil, because the driving shaft Main Function is transmitting torque, the general higher material of carbon content of all selecting, to guarantee corresponding requirement of strength, but such material magnetic hysteresis is relatively large, is unfavorable for the quick response of moving armature.
The easy inefficacy of bimetal temp-sensitive apparatus in the above-mentioned silicon oil filled fan clutch and speed of response are slow, can do a lot of idle works like this, increase the oil consumption of vehicle.Moreover there is very large hysteresis quality in the bimetal temp-sensitive apparatus to the control of engine temperature, can cause fuel oil insufficient, causes environmental pollution.On the one hand, traditional silicon oil filled fan clutch is generally secondary speed governing or three-step timing, has utmost point governor oil consumption large as above-mentioned in addition.
The model utility content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of stepless time adjustment, and is energy-saving and cost-reducing, long service life and the rear-mounted automatically controlled silicon oil filled fan clutch that can avoid hysteresis to produce.
To achieve these goals, the technical solution adopted in the utility model is: a kind of rear-mounted automatically controlled silicon oil filled fan clutch, comprise driving shaft, housing and protecgulum, housing is connected by bearing with driving shaft, driving shaft and engine synchronization rotate, housing is fixedly connected with protecgulum and is synchronized with the movement, be provided with active plate and follower plate between housing and the protecgulum, active plate is fixedly connected with and coaxial rotation with driving shaft, follower plate is fixedly connected with protecgulum, fan is installed on the housing, be provided with oil storage chamber and active chamber between housing and the protecgulum, be provided with the oil outlet of conducting oil storage chamber and active chamber between oil storage chamber and the active chamber, active chamber offers the drainback passage that communicates with oil storage chamber, the valve block assembly is between housing and protecgulum, and the valve block assembly is corresponding with the position of oil outlet, the valve block assembly is by the opening and closing of valve block control switch control oil outlet, it is characterized in that: described valve block control switch is the solenoid valve assembly, described solenoid valve assembly is positioned at the other end that housing is connected with protecgulum relatively, conducting or the disconnection of central controller controls solenoid valve assembly, be provided with speed probe between described solenoid valve assembly and the housing, speed probe is carried signal to central control unit.
Adopt said structure, the utility model replaces bimetal temp-sensitive apparatus of the prior art with the solenoid valve assembly, and the speed of response that has solved the bimetal inductor is slow, and the control very large hysteresis quality of existence of engine temperature is increased the problem of the oil consumption of vehicle.
As further setting of the present utility model, described solenoid valve assembly is located on the driving shaft by bearing housing, the solenoid valve assembly comprises electromagnetic coil, static gag bit, described electromagnetic coil is arranged with magnetism-guiding hood outward, described bearing is positioned at the magnetism-guiding hood outside, described static gag bit is positioned at the end that electromagnetic coil deviates from driving shaft, and static gag bit and described valve block assembly form closed field circuit under the state of electromagnetic coil energising, energising or the outage of the output terminal control electromagnetic coil of central control unit.
Adopt said structure, by changing the shape of magnetism-guiding hood, make bearing be positioned at the magnetism-guiding hood outside, and make magnetism-guiding hood and bearing with two kinds of different materials, and make the magnetic resistance of magnetism-guiding hood less than bearing, the magnetic line of force that results from like this electromagnetic coil inside is flowed through final closed in coil inside by the magnetism-guiding hood outer wall behind static gag bit, the moving armature through the magnetism-guiding hood inwall, thereby has avoided flowing through bearing and driving shaft, so just can effectively avoid the generation of hysteresis.
As further setting of the present utility model, described valve block assembly comprises moving armature and valve block, valve block between described active chamber and oil storage chamber and the position of valve block and described oil outlet corresponding, described moving armature is positioned at housing and is fixedly connected with valve block towards an end of solenoid valve assembly and by connecting rod.
Adopt said structure, when moving armature moved downward in the magnetic attraction that is subject to the solenoid valve assembly, the band moving valve plate moved downward, and opens oil outlet, and silicone oil flows into active chamber.When moving armature is moved upward by valve block elastic force, close oil outlet.And the valve block assembly adopts the design of Chang Kaifang formula, namely in the cold situation of electromagnetic coil, oil outlet is in open mode, and the silicone oil in the oil storage chamber can directly arrive active chamber, make fan be in the state of running up, thereby guaranteed that the solenoid valve assembly can be not overheated in the inefficacy rear engine yet.
As further setting of the present utility model, described speed probe is arranged on the end that the solenoid valve assembly deviates from driving shaft, speed probe comprises Hall element and permanent magnet, Hall element and permanent magnet relative engagement arrange, and be provided with groove between Hall element and the permanent magnet, described housing is provided with the induction grid towards the solenoid valve assembly, and described induction grid rotate between described Hall element and permanent magnet.
Adopt said structure, be provided with groove between Hall element and the permanent magnet, the induction grid cut the magnetic signal between permanent magnet and the Hall element in this groove, power by magnetic signal changes the potential difference that causes Hall element and changes and carry out step-by-step counting, then by wire harness signal is transferred to central control unit.Then sensitiveer to the control of rotating speed by step-by-step counting.
As further setting of the present utility model, be provided with magnetism resistent ring between described electromagnetic coil and the moving armature, described magnetism resistent ring is positioned at static gag bit inside.
Adopt said structure, because static gag bit is between electromagnetic coil and moving armature, so magnetism resistent ring can shield the magnetic field of solenoid valve assembly generation to the impact of housing, because housing is provided with the induction grid, arranging of magnetism resistent ring can guarantee that the normal operation of these induction grid is not subjected to the influence of magnetic field of solenoid valve assembly generation.
Described moving armature is provided with the position limiting sealed circle towards an end of solenoid valve assembly, and described position limiting sealed circle is positioned at static gag bit inside.
Adopt said structure, the position limiting sealed circle carries out the spacing oil outlet that prevents to the position of moving armature and opens too muchly between magnetism resistent ring and moving armature, and this position limiting sealed circle can also play sealing silicone oil and prevents that silicone oil from leaking outside.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Accompanying drawing 1 is the utility model specific embodiment structural representation.
Embodiment
Specific embodiment of the utility model as shown in Figure 1, rear-mounted automatically controlled silicon oil filled fan clutch, comprise driving shaft 1, housing 2, protecgulum 3 and valve block assembly, driving shaft 1 rotates with engine synchronization, housing 2 is fixedly connected with driving shaft 1 by bearing 42, housing 2 is fixedly connected with by screw with protecgulum 3 and is synchronized with the movement, be provided with between housing 2 and the protecgulum 3 and be fixedly connected with driving shaft 1 and the active plate 5 of coaxial rotation, protecgulum 3 and active plate 5 are respectively equipped with teeth groove in corresponding position, the teeth groove engagement on the teeth groove on the active plate 5 and the protecgulum 3.Be provided with the follower plate 6 that is fixedly connected with protecgulum 3 between active plate 5 and the protecgulum 3, on the housing 2 fan is installed, be provided with oil storage chamber 31 and active chamber 32 between housing 2 and the protecgulum 3, offer the oil outlet of conducting oil storage chamber 31 and active chamber 32 between oil storage chamber 31 and the active chamber 32, one end of active chamber 32 offers the drainback passage that communicates with oil storage chamber 31, silicone oil enters active chamber 32 by oil outlet, makes silicone oil be back to oil storage chamber 31 by the return flow line again.The valve block assembly is between housing 2 and protecgulum 3 and corresponding with the position of oil outlet, this valve block assembly is by the opening and closing of solenoid valve assembly control oil outlet, the solenoid valve assembly is positioned at the rear end of housing 2, protecgulum 3 is positioned at the front end of housing 2, the solenoid valve assembly is set on the driving shaft 1 by bearing 41, conducting or the disconnection of central controller controls solenoid valve assembly are provided with speed probe between solenoid valve assembly and the housing 2, and speed probe is carried signal to central control unit.
The solenoid valve assembly comprises electromagnetic coil 71 and static gag bit 72, the electromagnetic coil 71 outer magnetism-guiding hoods 73 that are arranged with, bearing 41 is positioned at magnetism-guiding hood 73 outsides, static gag bit 72 is positioned at the end that electromagnetic coil 71 deviates from driving shaft 1, the electromagnetic coil 71 inner magnetic lines of force that produce are successively by magnetism-guiding hood 73 inwalls, static gag bit 72, moving armature 82, magnetism-guiding hood 73 outer walls, get back at last the electromagnetic coil 71 inner field circuits that form closure, so just avoided the magnetic line of force to produce hysteresis through driving shaft 1, energising or the outage of the output terminal control electromagnetic coil 71 of central control unit.
The valve block assembly comprises moving armature 82 and valve block 81, valve block 81 between active chamber 32 and oil storage chamber 31 and valve block 81 corresponding with the position of oil outlet, moving armature 82 is positioned at housing 2 and is fixedly connected with valve block 81 by connecting rod 83 towards an end and the moving armature 82 of solenoid valve assembly.Valve block 81 often is in and is arranged, and namely without External Force Acting the time, oil outlet is in opening state, and the silicone oil in the oil storage chamber 31 can directly arrive active chamber 32, fan can be run up, thereby guaranteed that solenoid valve can be not overheated in the inefficacy rear engine yet.When the magnetic attraction that is subject to the solenoid valve assembly when moving armature 82 moved upward, band moving valve plate 81 moved upward, and closes oil outlet.When moving armature 82 had been subject to opposite magnetic attraction and moves downward, band moving valve plate 81 moved downward, and opens oil outlet, and silicone oil flows into active chamber 32, rotated thereby the high viscosity by silicone oil makes active plate 5 drive follower plates 6.Because active plate 5 is power sources, and protecgulum 3, both are fixedly connected with synchronous rotary housing 2, and this both assembly power is to produce by the frictional force between the silicone oil in the active chamber 32 and active chamber 32 walls, at silicon oil viscosity, reach under the certain condition of area of contact, the size of frictional force just depends on the silicone oil amount that is in the active chamber 32, therefore can regulate the silicone oil flow of oil storage chamber 31 in the active chamber 32 by the time scale that valve block 81 in the control unit time is closed and opened, the control of the capacity of reflux of different rotating speeds under requiring is satisfied in the design of the drainback passage by 2 of protecgulum 3 and housings again, like this by valve block 81 control oil pump capacity, the silicone oil amount increases or reduces drainback passage control recirculating oil quantity according to a certain percentage in the active chamber to reach, the linearity that reaches rotation speed of the fan increases or reduces, so that the utility model reaches stepless time adjustment, compared with the secondary speed governing of general silicon oil filled fan clutch or three-step timing energy-saving consumption-reducing more.
Speed probe is arranged on the end that the solenoid valve assembly deviates from driving shaft 1, speed probe comprises Hall element 91 and permanent magnet 92, Hall element 91 and permanent magnet 92 relative engagement settings, and be provided with groove 94 between Hall element 91 and the permanent magnet 92, housing 2 is provided with induction grid 93 towards an end of solenoid valve assembly and groove 94 corresponding positions, these induction grid 93 are at the groove 94 interior rotation cutting permanent magnets 92 between Hall element 91 and the permanent magnet 92 and the magnetic signal between the Hall element 91, power by magnetic signal changes the potential difference that causes Hall element 91 and changes and carry out step-by-step counting, then by wire harness signal is transferred to central control unit.Then sensitiveer to the control of rotating speed by step-by-step counting.
Be provided with magnetism resistent ring 74 between electromagnetic coil 71 and the moving armature 72, magnetism resistent ring 74 is positioned at static gag bit 72 inside.This magnetism resistent ring 74 can shield the magnetic field of solenoid valve assembly generation to the impact of housing 2, because housing 2 is provided with induction grid 93, arranging of magnetism resistent ring 74 can guarantee that these induction grid 93 normal operations are not subjected to the influence of magnetic field of solenoid valve assembly generation.
Moving armature 82 is provided with position limiting sealed circle 75 towards an end of solenoid valve assembly, and position limiting sealed circle 75 is positioned at static gag bit 72 inside.Because static gag bit 72 is between electromagnetic coil 71 and moving armature 72, so this position limiting sealed circle 75 is between magnetism resistent ring 74 and moving armature 82, the spacing oil outlet that prevents is carried out in the position of moving armature 82 to be opened too much, can't accomplish to regulate accurately the silicone oil amount in the active chamber 32, and this position limiting sealed circle 75 can also play sealing silicone oil and prevents that silicone oil from leaking outside.
Working principle of the present utility model is as follows: by the temperature of central control unit collection vehicle cooling liquid, when excess Temperature, central control unit makes the outage of solenoid valve assembly, valve block 81 assemblies are opened oil outlet, fan is rotated with active plate 5, and speed probe passes through the wire harness Real-time Feedback to central control unit with the rotating speed of fan, and central control unit is compared with the setting rotating speed by feeding back rotating speed, suitable adjustment duty recently satisfies the requirement of setting rotating speed, the i.e. requirement of air force.Adopt above-mentioned solenoid valve assembly structure, carry out step-by-step counting by the potential difference variation of Hall element 91, control the silicone oil amount in the active chamber 32, so that clutch reaches the effect of stepless time adjustment.Cross when low when the temperature of central controller collection vehicle cooling liquid, central control unit sends signal and makes the energising of solenoid valve assembly, closes oil outlet, makes fan be in lower rotating speed.This valve body assembly adopts design open in usual, can guarantee also that when the solenoid valve assembly failure motor can be not overheated, because magnetism-guiding hood 73 and bearing 41 adopt the setting of different materials, make the magnetic resistance of magnetism-guiding hood 73 less than bearing 41, thereby and the shape of magnetism-guiding hood 73 changed make bearing 41 place that magnetism-guiding hood 73 is outside to avoid through driving shaft 1 magnetic line of force, thereby avoided the generation of hysteresis.
Claims (8)
1. rear-mounted automatically controlled silicon oil filled fan clutch, comprise driving shaft, housing and protecgulum, housing is connected by bearing with driving shaft, driving shaft and engine synchronization rotate, housing is fixedly connected with protecgulum and is synchronized with the movement, be provided with active plate and follower plate between housing and the protecgulum, active plate is fixedly connected with and coaxial rotation with driving shaft, follower plate is fixedly connected with protecgulum, fan is installed on the housing, be provided with oil storage chamber and active chamber between housing and the protecgulum, be provided with the oil outlet of conducting oil storage chamber and active chamber between oil storage chamber and the active chamber, active chamber offers the drainback passage that communicates with oil storage chamber, the valve block assembly is between housing and protecgulum, and the valve block assembly is corresponding with the position of oil outlet, the valve block assembly is by the opening and closing of valve block control switch control oil outlet, it is characterized in that: described valve block control switch is the solenoid valve assembly, described solenoid valve assembly is positioned at the other end that housing is connected with protecgulum relatively, conducting or the disconnection of central controller controls solenoid valve assembly, be provided with speed probe between described solenoid valve assembly and the housing, speed probe is carried signal to central control unit.
2. rear-mounted automatically controlled silicon oil filled fan clutch according to claim 1, it is characterized in that: described solenoid valve assembly is located on the driving shaft by bearing housing, the solenoid valve assembly comprises electromagnetic coil, static gag bit, described electromagnetic coil is arranged with magnetism-guiding hood outward, described bearing is positioned at the magnetism-guiding hood outside, described static gag bit is positioned at the end that electromagnetic coil deviates from driving shaft, static gag bit and described valve block assembly form closed field circuit under the state of electromagnetic coil energising, energising or the outage of the output terminal control electromagnetic coil of central control unit.
3. rear-mounted automatically controlled silicon oil filled fan clutch according to claim 2, it is characterized in that: described valve block assembly comprises moving armature and valve block, valve block between described active chamber and oil storage chamber and the position of valve block and described oil outlet corresponding, described moving armature is positioned at housing and is fixedly connected with valve block towards an end of solenoid valve assembly and by connecting rod.
4. rear-mounted automatically controlled silicon oil filled fan clutch according to claim 3, it is characterized in that: described speed probe is arranged on the end that the solenoid valve assembly deviates from driving shaft, speed probe comprises Hall element and permanent magnet, Hall element and permanent magnet relative engagement arrange, and be provided with groove between Hall element and the permanent magnet, described housing is provided with the induction grid towards the solenoid valve assembly, and described induction grid rotate between described Hall element and permanent magnet.
5. rear-mounted automatically controlled silicon oil filled fan clutch according to claim 3, it is characterized in that: be provided with magnetism resistent ring between described electromagnetic coil and the moving armature, described magnetism resistent ring is positioned at static gag bit inside.
6. rear-mounted automatically controlled silicon oil filled fan clutch according to claim 4, it is characterized in that: be provided with magnetism resistent ring between described electromagnetic coil and the moving armature, described magnetism resistent ring is positioned at static gag bit inside.
7. rear-mounted automatically controlled silicon oil filled fan clutch according to claim 5, it is characterized in that: described moving armature is provided with the position limiting sealed circle towards an end of solenoid valve assembly, and described position limiting sealed circle is positioned at static gag bit inside.
8. rear-mounted automatically controlled silicon oil filled fan clutch according to claim 6, it is characterized in that: described moving armature is provided with the position limiting sealed circle towards an end of solenoid valve assembly, and described position limiting sealed circle is positioned at static gag bit inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220543550 CN202883811U (en) | 2012-10-23 | 2012-10-23 | Rear-mounted electric control silicon oil fan clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220543550 CN202883811U (en) | 2012-10-23 | 2012-10-23 | Rear-mounted electric control silicon oil fan clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883811U true CN202883811U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220543550 Expired - Lifetime CN202883811U (en) | 2012-10-23 | 2012-10-23 | Rear-mounted electric control silicon oil fan clutch |
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| Country | Link |
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| CN (1) | CN202883811U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397929A (en) * | 2013-08-02 | 2013-11-20 | 王桂岳 | Electronic control silicone oil fan clutch |
| CN104454116A (en) * | 2013-09-24 | 2015-03-25 | 北汽福田汽车股份有限公司 | Fan clutch device for engine and engine with same |
| CN105570174A (en) * | 2016-02-25 | 2016-05-11 | 太仓钰丰机械工程有限公司 | Silicone oil fan clutch with wind pressure protection function |
| CN108798862A (en) * | 2018-08-22 | 2018-11-13 | 温州车舟汽车部件有限公司 | A kind of electric-controlled silicon oil clutch |
| CN109854353A (en) * | 2019-03-29 | 2019-06-07 | 长春宝成汽车电子有限公司 | A kind of electric-control silicone oil fan clutch |
| CN114198423A (en) * | 2021-12-11 | 2022-03-18 | 苏州睿昕汽车配件有限公司 | Oil control mechanism of electric control silicone oil fan clutch |
-
2012
- 2012-10-23 CN CN 201220543550 patent/CN202883811U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397929A (en) * | 2013-08-02 | 2013-11-20 | 王桂岳 | Electronic control silicone oil fan clutch |
| CN104454116A (en) * | 2013-09-24 | 2015-03-25 | 北汽福田汽车股份有限公司 | Fan clutch device for engine and engine with same |
| CN105570174A (en) * | 2016-02-25 | 2016-05-11 | 太仓钰丰机械工程有限公司 | Silicone oil fan clutch with wind pressure protection function |
| CN108798862A (en) * | 2018-08-22 | 2018-11-13 | 温州车舟汽车部件有限公司 | A kind of electric-controlled silicon oil clutch |
| CN109854353A (en) * | 2019-03-29 | 2019-06-07 | 长春宝成汽车电子有限公司 | A kind of electric-control silicone oil fan clutch |
| CN114198423A (en) * | 2021-12-11 | 2022-03-18 | 苏州睿昕汽车配件有限公司 | Oil control mechanism of electric control silicone oil fan clutch |
| CN114198423B (en) * | 2021-12-11 | 2023-06-23 | 苏州睿昕汽车配件有限公司 | Oil control mechanism of electric control silicone oil fan clutch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
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| CX01 | Expiry of patent term |