WO2017018348A1 - 外部制御式ファン・クラッチ装置 - Google Patents
外部制御式ファン・クラッチ装置 Download PDFInfo
- Publication number
- WO2017018348A1 WO2017018348A1 PCT/JP2016/071578 JP2016071578W WO2017018348A1 WO 2017018348 A1 WO2017018348 A1 WO 2017018348A1 JP 2016071578 W JP2016071578 W JP 2016071578W WO 2017018348 A1 WO2017018348 A1 WO 2017018348A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve member
- armature
- oil
- leaf spring
- clutch device
- Prior art date
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Images
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
- F16D35/02—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part
- F16D35/021—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part actuated by valves
- F16D35/024—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part actuated by valves the valve being actuated electrically, e.g. by an electromagnet
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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
- F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
- F16D35/02—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
- F01P5/04—Pump-driving arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
- F01P7/042—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using fluid couplings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
- F01P7/081—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps using clutches, e.g. electro-magnetic or induction clutches
Definitions
- the present invention generally relates to an externally controlled fan / clutch device that controls the rotation of a fan for cooling an engine in an automobile or the like by following a temperature change or a rotation change around the outside.
- a non-magnetic case supported via a bearing on a rotating shaft (shaft) to which a drive disk is fixed and a cover attached to the case And at least one oil circulation communicating with a torque transmission gap on a side wall surface of an oil sump chamber provided with a hollow inside of the drive disk.
- a valve member having a flow path (oil supply port) and having magnetism for opening and closing the oil circulation flow path, and the valve member is actuated by an electromagnet so that a torque transmission gap formed between the drive side and the driven side
- a system that controls the rotational torque transmission from the drive side to the driven side by increasing or decreasing the effective contact area of the oil (viscous fluid).
- an externally controlled fan / clutch device for example, by energizing an electromagnet fixed on the rotating shaft body side, a valve member provided on a drive disk or a sealer cage is operated via an armature, and an oil circulation flow passage
- an externally controlled fan / clutch device that controls opening and closing of the (oil supply port) from the outside, and the structure is such that the magnetic flux generated by excitation of the electromagnet coil passes through the magnetic path of the rotating shaft body made of a magnetic material with high permeability.
- a magnetic circuit (magnetic loop) that transmits to the armature of the valve member consisting of a leaf spring and returns to the electromagnet is constructed, and the valve member inside the clutch device is operated by the electromagnet to control the flow rate of torque transmission oil. (Refer to patent document 1 etc.).
- the above-described conventional externally controlled fan / clutch device has the following drawbacks. That is, in the conventional externally controlled fan / clutch device, the amount of oil supplied to the torque transmission chamber is controlled by the valve member. To increase the amount of oil supplied, the stroke of the valve member (opening / closing operation amount or movement) It is necessary to increase the amount.
- the valve member for oil supply that opens and closes the oil circulation passage (oil supply port) provided in the drive disk and the sealer cage has an integral (single) armature on the back of the single leaf spring. The oil supply amount is increased because the leaf spring base end is attached to the drive disk or sealer cage so that the armature of the valve member is located in the vicinity of the rotating shaft body.
- the present invention has been made to solve the problems of the conventional externally controlled fan / clutch device described above, and by changing the armature of the valve member from the conventional integral type to a plurality of divided types, It is an object of the present invention to provide an externally controlled fan / clutch device with improved performance.
- the externally controlled fan / clutch device easily secures the stroke of the valve member by increasing the bending point of the leaf spring by making the armature of the valve member into a plurality of divided types in order to improve the characteristics of the solenoid valve.
- the stress of the leaf spring can be dispersed, and the gist thereof is a non-magnetic case supported via a bearing on a rotating shaft body to which a drive disk is fixed, and the case.
- At least one oil circulation which is provided with a torque transmission chamber and an oil reservoir chamber in which a drive disk is built inside a seal box made of a cover attached to the case, and which communicates with a torque transmission gap on a side wall surface of the oil reservoir chamber.
- a valve member having a flow path and having magnetism for opening and closing the oil circulation flow path, the valve member having a structure in which an armature is attached to a leaf spring having one end attached to the seal box And an electromagnet supported on the rotating shaft through a bearing, a ring-shaped magnetic member on the outer periphery of the rotating shaft, and the valve member is operated by the electromagnet to control the opening and closing of the oil circulation passage.
- the armature attached to the leaf spring of the valve member is divided into a plurality in the direction from the base end side to the swing end side of the leaf spring to provide a plurality of bending points of the leaf spring. It is characterized by having a structure.
- the armature of the valve member is divided into a plurality of types, and a plurality of bending points are provided on the leaf spring, so that the stress of the leaf spring can be dispersed and the oil supply Even if the stroke of the valve member is set large to increase the amount, the valve member can be operated without increasing the attractive force of the armature by the electromagnet. Therefore, according to the present invention, even if the leaf spring of the valve member is far away from the oil circulation passage, the stress of the leaf spring does not increase or the armature's attractive force by the electromagnet does not become insufficient. A stable valve opening / closing operation can be obtained with this electromagnet, and it is not necessary to use an electromagnet having a large magnetic force in order to increase the attraction force of the leaf spring, thereby reducing the size and weight of the fan / clutch device.
- FIG. 1A is a schematic plan view
- FIG. 1B is a schematic longitudinal sectional view along line bb in FIG. It is.
- FIG. 1A is a schematic plan view
- FIG. 1B is a schematic longitudinal sectional view along line bb in FIG. It is.
- FIG. 1A is a schematic plan view
- FIG. 1B is a schematic longitudinal sectional view along line bb in FIG. It is.
- FIG. 1A is a schematic plan view
- FIG. 1B is a schematic longitudinal sectional view along line bb in FIG. It is.
- the externally controlled fan / clutch device shown in FIG. 1 includes a rotating shaft body (driving shaft) 1 that is rotated by driving of a driving portion (engine), and a case 2-1 and a cover 2-2 via a bearing 13.
- the sealer cage 2 is supported, and a drive disk 3 fixed to the rotary shaft 1 is housed in a torque transmission chamber 6 in the sealer cage 2.
- the case 2-1 includes an oil flow passage 9 communicating with the torque transmission chamber 6 and an oil sump chamber 5 provided with a hollow inside, and the oil sump chamber (oil storage chamber) 5 has an upper portion of the oil sump chamber (oil storage chamber) 5.
- An oil circulation flow passage (oil supply port) 8 communicating with the flow passage 9 is provided, and the oil in the oil sump chamber 5 transmits torque via the oil circulation flow passage (oil supply port) 8 and the oil circulation space 9.
- the structure is supplied to the chamber 6.
- An oil supply valve member 10 that opens and closes the oil circulation passage 8 includes a leaf spring 10-1 and an armature 10-2, and the armature 10-2 of the valve member is positioned in the vicinity of the rotary shaft 1. Further, the base end portion of the leaf spring 10-1 that is externally fitted to the rotary shaft 1 is fixed to a mounting portion 11 provided on the back side of the case in the oil flow passage 9 with a screw or the like.
- a ring-shaped electromagnet 16 is supported by a ring-shaped electromagnet support 17 supported on the rotary shaft 1 via a bearing 14 on the drive unit side of the sealer cage 2, and the electromagnet 16 and the valve member are supported.
- a first magnetic ring 18 is disposed on the outer periphery of the base portion of the case 2-1 that is externally fitted to the outer periphery of the rotating shaft 1 between the ten, and the first magnetic body is interposed between the electromagnet support 17 and the case 2-1.
- a second magnetic ring 19 is fixed so as to surround the ring 18.
- the conventional valve member 10 ′ (armature integrated type) shown in FIGS. 3 (A) and 3 (B) is composed of a leaf spring 10′-1 and an armature 10′-2 whose body is annular, and the leaf spring 10 ′.
- '-1 is formed with a triangular protrusion 10'-1b at the end opposite to the base end 10'-1a, and an integral annular armature 10' on the rear surface of the annular portion of the leaf spring 10'-1. -2 is attached.
- the leaf spring base end portion 10′-1a is externally fitted to the rotary shaft 1 so that the armature 10′-2 of the valve member is positioned in the vicinity of the rotary shaft 1. And it is fixed to the mounting portion 11 provided on the back side of the case with a screw or the like.
- 10'-3 is a mounting hole.
- the leaf spring base end portion 10'-1a is fixed when the electromagnet 16 is not excited.
- the stroke of the valve member is increased to increase the opening amount in order to increase the oil supply amount.
- the triangular projection 10′-1b of the leaf spring is greatly separated from the oil circulation passage, and the attractive force of the armature 10′-2 by the electromagnet 16 is insufficient, or the stress of the leaf spring 10′-1 is reduced. Inconveniences such as increased valve opening / closing operation become unstable. That is, the conventional valve member 10 ′ uses an integral (one piece) armature 10 ′-2, so that the valve member 10 ′ has one bending point.
- the valve member 10 of the present invention is configured to disperse the stress of the leaf spring by increasing the bending point of the leaf spring by making the armature, which has conventionally been an integral type, into a plurality of divided types.
- the structure is the same as that of the conventional valve member 10 ′ shown in FIGS. 3A and 3B except that a multi-segment armature is adopted as shown in FIGS. 2A and 2B.
- the valve member 10 of the present invention includes a leaf spring 10-1 having a ring-shaped main body and a triangular protrusion 10-1b formed on the end opposite to the base end 10-1a, and a split armature.
- the armature 10-2 divided into two parts 10-2b is attached to the back surface of the leaf spring 10-1, and the divided portions 10-2c of the two armature divided pieces 10-2a, 10-2b are attached to the leaf spring 10-.
- 1 is another bending point.
- the valve member 10 of the present invention adopting this split-type armature 10-2 is externally fitted to the rotary shaft 1 so that the armature 10-2 of the valve member is positioned in the vicinity of the rotary shaft 1 as described above.
- the base end of the leaf spring 10-1 is fixed to a mounting portion 11 provided on the back side of the case in the oil circulation space 9 with a screw or the like.
- reference numeral 10-3 denotes a mounting hole.
- the armature 10-2 acts as an oil circulation flow path by the action of the leaf spring 10-1.
- the oil circulation flow passage 8 is opened by separating from the oil flow 8, the oil reservoir chamber 5 and the torque transmission chamber 6 communicate with each other, and the oil in the oil reservoir chamber 5 is supplied to the torque transmission chamber 6.
- the ten leaf springs 10-1 open with the split portions 10-2c of the two armature split pieces 10-2a, 10-2b as bending points, and therefore the leaf spring base of the two armature split pieces 10-2a, 10-2b.
- the armature divided piece 10-2a on the side of the end 10-1a is substantially in contact with the second magnetic ring 19.
- the electromagnet 16 when the electromagnet 16 is ON (excitation), the armature 10-2 is attracted against the leaf spring 10-1, so that the oil is absorbed by the triangular protrusion 10-1b of the leaf spring 10-1.
- the circulation flow path 8 is closed and the supply to the oil torque transmission chamber 6 in the oil sump chamber 5 is shut off.
- the leaf spring 10-1 of the valve member 10 has two armature divided pieces 10-2a, Since the dividing portion 10-2c of 10-2b is closed at the bending point, the attractive force of the armature can be reduced as compared with the case where the base end portion of the leaf spring 10-1 is the bending point. Therefore, for example, even if the stroke of the valve member 10 is set large to increase the amount of oil supplied to the torque transmission chamber, the valve member 10 can be operated without increasing the attractive force of the armature 10-2 by the electromagnet 16. It becomes. Further, by further dividing the armature 10-2 to increase the bending point of the leaf spring 10-1, the stress acting on the leaf spring 10-1 can be further dispersed.
- the stress of the leaf spring does not increase or the armature's attractive force by the electromagnet does not become insufficient.
- Stable valve opening and closing operation can be obtained with ordinary electromagnets, and it is not necessary to use electromagnets with high magnetic force to increase the attraction force of the leaf springs, thereby reducing the size and weight of externally controlled fan and clutch devices. it can.
- the externally controlled fan / clutch device is applied to a type in which an oil sump chamber is provided in the case of the seal box, but the structure of the oil disc chamber provided on the drive disk side is described. Needless to say, the present invention can be applied to an externally controlled fan / clutch device or the like.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
Description
即ち、従来の外部制御式ファン・クラッチ装置では、トルク伝達室への油供給量を弁部材によって制御しているが、油供給量を増大するためには弁部材のストローク(開閉動作量もしくは移動量)を大きくする必要がある。しかし、駆動ディスクや密封器匣に設けられる油循環流通路(油供給口)を開閉する油供給用の弁部材は、一体型(一枚物)のアーマチャーが一枚物の板ばねの裏面に貼り付けられた構造となっており、当該弁部材のアーマチャーが回転軸体近傍に位置するように板ばね基端部を駆動ディスクもしくは密封器匣に取着されているため、油供給量を増やすために弁部材のストロークを大きくして開放量を増大させると、弁部材の板ばねが油循環流通路から大きく離間し電磁石によるアーマチャーの吸引力が不足したり、板ばねの応力が増大するなどして弁開閉動作が不安定になる等の不具合が生じる。又、電磁石とアーマチャーによる板ばねの吸引力を高めるためにより磁力の大きい電磁石を使用すると、電磁石の寸法、重量が大きくなり、ファン・クラッチ装置の小型、軽量化が難しくなり、消費電力も多く必要となる。
このように本発明によれば、弁部材の板ばねが油循環流通路から大きく離間しても板ばねの応力が増大したり、電磁石によるアーマチャーの吸引力が不足するようなことがないため、通常の電磁石で安定した弁開閉動作が得られ、板ばねの吸引力を高めるために磁力の大きい電磁石を使用する必要がなくなることにより外部制御式ファン・クラッチ装置の小型、軽量化をはかることができる。
2 密封器匣
2-1 ケース
2-2 カバー
3 駆動ディスク
5 油溜り室(オイル貯蔵室)
6 トルク伝達室
8 油循環流通路(油供給口)
9 油流通路(油流通用空間部)
10 弁部材
10-1 板ばね
10-1a バネ基端部
10-1b 三角形状の突出部
10-2 アーマチャー
10-2a、10-2b アーマチャー分割片
10-2c 分割部(曲げ点)
10-3 取付け孔
11 弁部材取付部
13、14 軸受
16 電磁石
17 電磁石支持体
18 第1磁性体リング
19 第2磁性体リング
Claims (1)
- 駆動ディスクを固着した回転軸体上に、軸受を介して支承された非磁性体のケースと該ケースに取着されたカバーとからなる密封器匣の内部に、駆動ディスクを内装するトルク伝達室と油溜り室を備え、前記油溜り室の側壁面にトルク伝達間隙に通ずる少なくとも一つの油循環流通路を有し、前記油循環流通路を開閉する磁性を有する弁部材を備え、前記弁部材は前記密封器匣にその一端を取着された板ばねにアーマチャーが取付けられた構成となし、前記回転軸体に軸受を介して支持した電磁石、同回転軸体の外周にリング形状の磁性部材を備え、前記電磁石により前記弁部材を作動させて前記油循環流通路を開閉制御する仕組みとなし、駆動側と被駆動側とのなすトルク伝達間隙部での油の有効接触面積を増減させて駆動側から被駆動側への回転トルク伝達を制御するようにしてなる外部制御式ファン・クラッチ装置において、前記弁部材として、当該弁部材の板ばねに取着されるアーマチャーを板ばねの基端側から揺動端側に向かう方向において複数に分割して板ばねの曲げ点を複数設けた構造となしたことを特徴とする外部制御式ファン・クラッチ装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16830453.3A EP3330561B1 (en) | 2015-07-27 | 2016-07-22 | Externally controlled fan clutch device |
CN201680043628.7A CN107923453B (zh) | 2015-07-27 | 2016-07-22 | 外部控制式风扇-离合器装置 |
KR1020187003665A KR101983519B1 (ko) | 2015-07-27 | 2016-07-22 | 외부 제어식 팬·클러치 장치 |
US15/747,177 US10670089B2 (en) | 2015-07-27 | 2016-07-22 | External control type fan clutch device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-148109 | 2015-07-27 | ||
JP2015148109A JP6562749B2 (ja) | 2015-07-27 | 2015-07-27 | 外部制御式ファン・クラッチ装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017018348A1 true WO2017018348A1 (ja) | 2017-02-02 |
Family
ID=57884393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2016/071578 WO2017018348A1 (ja) | 2015-07-27 | 2016-07-22 | 外部制御式ファン・クラッチ装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10670089B2 (ja) |
EP (1) | EP3330561B1 (ja) |
JP (1) | JP6562749B2 (ja) |
KR (1) | KR101983519B1 (ja) |
CN (1) | CN107923453B (ja) |
WO (1) | WO2017018348A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101958274B1 (ko) * | 2018-10-16 | 2019-03-14 | 주식회사 이엠티 | 밸브 인력이 보강된 엔진냉각제어장치 |
CN109458406B (zh) * | 2018-10-16 | 2024-06-11 | 东风马勒热系统有限公司 | 一种电控硅油离合器阀杆及电控硅油离合器 |
CN113503208B (zh) * | 2021-07-30 | 2024-10-18 | 华纳圣龙(宁波)有限公司 | 一种双阀电控硅油风扇离合器 |
CN114753919A (zh) * | 2022-04-24 | 2022-07-15 | 东风马勒热系统有限公司 | 适配电控硅油水泵的控制阀杆 |
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JP2014238111A (ja) * | 2013-06-06 | 2014-12-18 | 臼井国際産業株式会社 | 外部制御式ファン・クラッチ装置 |
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JPS5439631Y2 (ja) * | 1974-08-09 | 1979-11-22 | ||
JPS5122744A (ja) | 1974-08-19 | 1976-02-23 | Dainichiseika Color Chem | Horiorefuinyochakushokuzai |
EP1248007B1 (de) * | 2001-04-06 | 2004-01-14 | BorgWarner Inc. | Flüssigkeitsreibungskupplung |
JP4007489B2 (ja) * | 2002-02-14 | 2007-11-14 | 臼井国際産業株式会社 | 外部制御式ファンカップリング装置の制御方法 |
CN100434739C (zh) * | 2002-10-22 | 2008-11-19 | 臼井国际产业株式会社 | 外部控制型风扇耦合装置 |
JP4353396B2 (ja) * | 2002-10-22 | 2009-10-28 | 臼井国際産業株式会社 | 外部制御式ファン・カップリング装置 |
JP2004162911A (ja) * | 2002-10-22 | 2004-06-10 | Usui Kokusai Sangyo Kaisha Ltd | 外部制御式ファン・カップリング装置 |
JP4813868B2 (ja) * | 2004-11-09 | 2011-11-09 | 臼井国際産業株式会社 | 外部制御式ファン・カップリング装置 |
MX2013000290A (es) * | 2010-08-19 | 2013-03-18 | Horton Inc | Ensamble de valvula de embrague viscoso. |
CN201730665U (zh) * | 2010-08-26 | 2011-02-02 | 五龙控股有限公司 | 一种用于硅油风扇离合器的阀片机构 |
JP6391141B2 (ja) * | 2014-01-31 | 2018-09-19 | 臼井国際産業株式会社 | 外部制御式ファン・クラッチ装置 |
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2015
- 2015-07-27 JP JP2015148109A patent/JP6562749B2/ja not_active Expired - Fee Related
-
2016
- 2016-07-22 WO PCT/JP2016/071578 patent/WO2017018348A1/ja active Application Filing
- 2016-07-22 CN CN201680043628.7A patent/CN107923453B/zh not_active Expired - Fee Related
- 2016-07-22 KR KR1020187003665A patent/KR101983519B1/ko active IP Right Grant
- 2016-07-22 US US15/747,177 patent/US10670089B2/en not_active Expired - Fee Related
- 2016-07-22 EP EP16830453.3A patent/EP3330561B1/en not_active Not-in-force
Patent Citations (2)
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JPS5194562U (ja) * | 1975-01-28 | 1976-07-29 | ||
JP2014238111A (ja) * | 2013-06-06 | 2014-12-18 | 臼井国際産業株式会社 | 外部制御式ファン・クラッチ装置 |
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EP3330561A4 (en) | 2019-01-02 |
US20180216675A1 (en) | 2018-08-02 |
CN107923453B (zh) | 2019-10-25 |
JP2017026114A (ja) | 2017-02-02 |
US10670089B2 (en) | 2020-06-02 |
EP3330561A1 (en) | 2018-06-06 |
KR101983519B1 (ko) | 2019-09-10 |
KR20180028479A (ko) | 2018-03-16 |
EP3330561B1 (en) | 2019-06-05 |
CN107923453A (zh) | 2018-04-17 |
JP6562749B2 (ja) | 2019-08-21 |
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