JPH04258530A - Liquid clutch - Google Patents
Liquid clutchInfo
- Publication number
- JPH04258530A JPH04258530A JP7595291A JP7595291A JPH04258530A JP H04258530 A JPH04258530 A JP H04258530A JP 7595291 A JP7595291 A JP 7595291A JP 7595291 A JP7595291 A JP 7595291A JP H04258530 A JPH04258530 A JP H04258530A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- case
- liquid clutch
- torque transmission
- electromagnet
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 47
- 239000000498 cooling water Substances 0.000 claims description 17
- 230000005284 excitation Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 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
- 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
-
- 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
- F16D35/028—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 electrically, e.g. by an electromagnet
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明はトルク伝達室に供給され
た油によって駆動ディスクの駆動トルクをケースに伝達
する液体クラッチ、特にケースに取付けられた自動車用
エンジンの冷却ファンを回転制御する液体クラッチに関
するものである。[Industrial Application Field] The present invention relates to a liquid clutch that transmits the driving torque of a drive disk to a case using oil supplied to a torque transmission chamber, and in particular a liquid clutch that controls the rotation of a cooling fan of an automobile engine installed in a case. It is related to.
【０００２】0002
【従来の技術】ケース内を仕切板によってトルク伝達室
と油溜り室とに区分し、トルク伝達室内に駆動ディスク
を駆動部の駆動によって回転自在に設け、油溜り室の油
を仕切板に形成した流出調整孔からトルク伝達室に供給
し、トルク伝達室の油を循環路により油溜り室に戻すよ
うにした構造のカップリング装置（液体クラッチ）が例
えば特公昭６３−２１０４８号公報に開示されている。
この種の液体クラッチによると、油溜り室からトルク伝
達室に供給される油によって、駆動ディスクの駆動トル
クがケースに伝達され、ケースに取付けられたファンが
回転し、例えば自動車機関の冷却が行われる。[Prior Art] The inside of a case is divided into a torque transmission chamber and an oil reservoir chamber by a partition plate, a drive disk is provided in the torque transmission chamber so as to be rotatable by the drive of a drive unit, and oil in the oil reservoir chamber is formed on the partition plate. For example, Japanese Patent Publication No. 63-21048 discloses a coupling device (liquid clutch) having a structure in which oil is supplied to a torque transmission chamber through an outflow adjustment hole, and the oil in the torque transmission chamber is returned to an oil reservoir chamber through a circulation path. ing. According to this type of liquid clutch, the driving torque of the drive disk is transmitted to the case by oil supplied from the oil sump chamber to the torque transmission chamber, and a fan attached to the case rotates, cooling an automobile engine, for example. be exposed.
【０００３】しかしながら、このような従来の液体クラ
ッチでは、バイメタルによって雰囲気温度を検出し、こ
の温度が上昇すると流出調整孔の開度を増加させてトル
ク伝達室内の油量を増加させ、ケースの回転数を上げ、
ファンを高速度で回転し冷却効果を上げるようにしてい
る。However, in such conventional liquid clutches, the atmospheric temperature is detected by a bimetal, and when this temperature rises, the opening degree of the outflow adjustment hole is increased to increase the amount of oil in the torque transmission chamber, and the rotation of the case is increased. increase the number,
The fan rotates at high speed to increase the cooling effect.
【０００４】0004
【発明が解決しようとする課題】しかし、自動車用機関
は各種の条件下で駆動される。例えば高速道路を走行中
は駆動ディスクは高速度で回転するが、走向風による空
冷効果が高められるので、ファンを余り高速度で回転さ
せる必要がなかったり、冷間始動時にはファンの回転数
が高いと、暖気運転を阻害し、かつファン騒音を生じる
のでファンは低速度で回転したいというように、夫々の
場合に応じてエンジンの冷却水温をオーバーシュートさ
せることなくほぼ一定に保つような制御が要求される。
この要求に応じるためには、雰囲気温度のみで油量を制
御するだけでは不十分である。However, automobile engines are operated under various conditions. For example, when driving on a highway, the drive disk rotates at a high speed, but since the air cooling effect is enhanced by the strike wind, there is no need to rotate the fan at such a high speed, and the fan rotation speed is high during a cold start. In some cases, it is necessary to control the engine cooling water temperature to keep it almost constant without overshooting, such as when it is desired to rotate the fan at a low speed as this would hinder warm-up operation and generate fan noise. be done. In order to meet this demand, it is insufficient to control the amount of oil based only on the ambient temperature.
【０００５】このように従来技術では、従来各種の動作
条件に応じて油量を高精度で調整して所望のリニア特性
等の適確な制御を行うことができない。[0005] As described above, in the conventional technology, it is not possible to accurately control the desired linear characteristics by adjusting the amount of oil with high precision according to various operating conditions.
【０００６】本発明は前述したような、この種の液体ク
ラッチの現状に鑑みてなされたものである。本発明では
流体クラッチにおいてはケースと駆動ディスク間には必
ずスリップ、即ち回転数の差がある点に着目し、この回
転数の差を利用するポンプ機構をケース内に内蔵させて
油を強制循環させると共に、該ポンプ機構の供給側と排
出側の連通路に外部の電磁石により作動する弁部材を設
け、トルク伝達間隙内の油量を各種の動作条件に応じて
迅速かつ高精度に制御して常時最適なトルク伝達状態、
即ち所望のリニア特性等の最適なケース（ファン）の回
転数が得られる液体クラッチを提供することを目的とす
るものである。The present invention has been made in view of the current state of this type of liquid clutch as described above. In the present invention, we focused on the fact that in a fluid clutch, there is always slippage, that is, a difference in rotational speed, between the case and the drive disk, and a pump mechanism that utilizes this difference in rotational speed is built into the case to forcibly circulate oil. In addition, a valve member operated by an external electromagnet is provided in the communication path between the supply side and the discharge side of the pump mechanism, and the amount of oil in the torque transmission gap is controlled quickly and with high precision according to various operating conditions. Optimal torque transmission status at all times,
That is, it is an object of the present invention to provide a liquid clutch that can obtain an optimal case (fan) rotation speed such as desired linear characteristics.
【０００７】[0007]
【課題を解決するための手段】前記目的を達成するため
に、本発明は、駆動部と、この駆動部によって回転する
回転軸と、この回転軸により回転駆動する駆動ディスク
と、この駆動ディスクが収容され、前記回転軸を中心に
回転自在に配設されるケースと、該ケース内に前記駆動
ディスクを内装せしめたトルク伝達室と油を集溜する油
溜り室を設け、油が前記油溜り室から前記トルク伝達室
に供給されて前記駆動ディスクの駆動トルクを前記ケー
スに伝達するようにした液体クラッチにおいて、油溜り
室とトルク伝達室とが連通する供給と排出の一組の第１
流通路と、この第１流通路の夫々に接続され、その中間
に回転軸とケース間の回転数の差を利用したポンプ機構
を介在せしめた第２流通路とを具備し、かつ第１流通路
と第２流通路の接続部に、前記ポンプ機構と油溜り室又
はトルク伝達室とを選択的に接続するよう開閉する磁性
を有する弁部材を設け、この弁部材を動作させる電磁石
を外部に設けることを要旨とし、また前記電磁石の励磁
を制御する制御装置を設け、該制御装置は駆動部を冷却
する冷却水の水温を検出するセンサからの出力信号、更
にはこれに追加して少くともケースの回転数又は回転軸
の回転数を検出するセンサからの出力信号に基づき各電
磁石への励磁電流を制御するものである。。[Means for Solving the Problems] In order to achieve the above object, the present invention includes a drive section, a rotating shaft rotated by the drive section, a drive disk rotationally driven by the rotation shaft, and a drive disk that is rotated by the drive section. A case is provided in which the drive disk is housed and rotatably arranged around the rotation shaft, a torque transmission chamber in which the drive disk is housed inside the case, and an oil reservoir chamber for collecting oil, and the oil is stored in the oil reservoir. In a liquid clutch configured to transmit driving torque of the drive disk to the case by being supplied from a chamber to the torque transmission chamber, a first set of supply and discharge, in which an oil sump chamber and a torque transmission chamber communicate with each other;
The first flow path includes a flow path, and a second flow path connected to each of the first flow paths and having a pump mechanism interposed therebetween that utilizes the difference in rotational speed between the rotating shaft and the case. A magnetic valve member that opens and closes to selectively connect the pump mechanism and the oil reservoir chamber or the torque transmission chamber is provided at the connection between the passage and the second flow passage, and an electromagnet for operating the valve member is provided externally. The gist is to provide a control device for controlling the excitation of the electromagnet, and the control device receives an output signal from a sensor that detects the temperature of the cooling water that cools the drive unit, and in addition, at least The excitation current to each electromagnet is controlled based on an output signal from a sensor that detects the rotation speed of the case or the rotation speed of the rotating shaft. .
【０００８】[0008]
【作用】本発明では、ケースと駆動ディスク（回転軸）
との回転数の差を利用して駆動されるポンプ機構をケー
スに内蔵させて油を強制循環させ、該ポンプ機構の排出
側及び供給側の連通路に外部の電磁石により作動する弁
部材を設け、制御機構からの制御信号により油溜り室か
らトルク伝達室に連通する供給側と排出側の一組の弁部
材を共に閉じると、ポンプ機構は単に油溜り室の油を循
環させるのみにすればトルク伝達室の中の油は常に一定
で、従ってケースに取付けたファンは定常回転（一定回
転）を行う。次に、ケース（ファン）の回転を加速した
い場合は、排出側の弁部材を閉じたまま供給側の弁部材
を開けば油はポンプ機構の吐出によりトルク伝達室には
供給されるが、排出はされないので、ファンは加速され
ていく。反対に減速したい場合は供給側の弁部材のみを
閉じ、排出側の弁部材を開ければ、油はトルク伝達室に
は供給されず、ポンプ機構の吸引により排出のみ行われ
るのでファンは減速される。[Operation] In the present invention, the case and drive disk (rotating shaft)
A pump mechanism that is driven by utilizing the difference in rotational speed between the two is built into the case to forcefully circulate oil, and a valve member operated by an external electromagnet is provided in the communication path on the discharge side and supply side of the pump mechanism. When a set of valve members on the supply side and the discharge side that communicate from the oil sump chamber to the torque transmission chamber are both closed by a control signal from the control mechanism, the pump mechanism simply circulates the oil in the oil sump chamber. The oil in the torque transmission chamber is always constant, so the fan attached to the case rotates steadily (constant rotation). Next, if you want to accelerate the rotation of the case (fan), open the supply side valve member while closing the discharge side valve member. Oil will be supplied to the torque transmission chamber by the discharge of the pump mechanism, but the oil will be discharged. Since the fan speed is not increased, the fan speed is accelerated. On the other hand, if you want to reduce the speed, close only the valve member on the supply side and open the valve member on the discharge side. Oil will not be supplied to the torque transmission chamber and will only be discharged by the suction of the pump mechanism, so the fan will be decelerated. .
【０００９】次に、この操作を駆動部の冷却水の水温、
更にはファンの回転数、又は駆動部の駆動によって回転
する回転軸の回転数等に基づいて油の供給の制御を行え
ば、精度よく適確な油量の制御が行われ、各種の動作条
件に対応したファンの回転が行われる。Next, this operation is performed by adjusting the temperature of the cooling water in the drive section,
Furthermore, if the oil supply is controlled based on the rotation speed of the fan or the rotation speed of the rotating shaft rotated by the drive unit, the oil amount can be controlled accurately and accurately, and can be adjusted under various operating conditions. The fan rotates accordingly.
【００１０】0010
【実施例】図１は本発明クラッチの１実施例を示す断面
図、図２は同じく電磁石を取除き内部のポンプ部分のみ
切断して示した全体の側面図で、図に示すように駆動部
（エンジン）１の駆動によって回転する回転軸２に、
軸受２ａを介して大径短寸のケース３が回転自在に取付
けられている。このケース３内に挿入配設される回転軸
２の端部には、円板状の駆動ディスク４が固定されてい
る。また、ケース３内は隔壁５によってトルク伝達室６
と油溜り室７とが設けられ、トルク伝達室６と油溜り室
７とは油の供給路８ａと排出路８ｂの一組の第１流通路
８によって循環路が形成されている。なお、駆動ディス
ク４はトルク伝達室６内に位置して、駆動ディスク４の
外周面及び側面と、これに対向するケース３の内周面と
側面間にトルク伝達間隙を形成しまた、ケース３の外側
にはファン３ａが固定されている。[Embodiment] Fig. 1 is a cross-sectional view showing one embodiment of the clutch of the present invention, and Fig. 2 is a side view of the whole with the electromagnet removed and only the internal pump section cut away. (Engine) 1 rotates the rotating shaft 2,
A large diameter and short case 3 is rotatably mounted via a bearing 2a. A disk-shaped drive disk 4 is fixed to an end of the rotating shaft 2 inserted into the case 3. Also, inside the case 3, a torque transmission chamber 6 is provided by a partition wall 5.
and an oil reservoir chamber 7 are provided, and a circulation path is formed between the torque transmission chamber 6 and the oil reservoir chamber 7 by a pair of first flow paths 8 including an oil supply path 8a and an oil discharge path 8b. The drive disk 4 is located within the torque transmission chamber 6, and a torque transmission gap is formed between the outer circumferential surface and side surface of the drive disk 4 and the inner circumferential surface and side surface of the case 3 opposing thereto. A fan 3a is fixed on the outside.
【００１１】次に、９はベーンポンプ機構であって、９
ａは回転軸２の先端に取付けられたロータであり、９ｂ
はベーンであり、ケース３と駆動ディスク４（回転軸２
）間のスリップにより生じる回転数の差により回転駆動
される。なお、図示実施例ではベーンポンプ機構に基づ
いて説明するが、本発明ではトロコイドポンプ、ギャポ
ンプ等を用いることもできる。このポンプ機構９の送油
路１０ａを供給路８ａに、また揚油路１０ｂを排出路８
ｂに接続しかつ、その接続部に夫々トルク伝達室６への
通路を閉じ、送油路１０ａと油溜り室７とを開通する弁
部材１１ａと、排出路８ｂを閉じ、油溜り室７を揚油路
１０ｂに接続する弁部材１１ｂを設ける。これら弁部材
１１ａ，１１ｂは磁性を有するもので、それ自体を磁性
体で形成するか、或いは磁性体片を取付けたもので、ケ
ース３の前面側に設けた一対の電磁石１２ａ，１２ｂに
より作動せしめる。なお、この電磁石１２ａ，１２ｂは
同心円上に配置したリング状の電磁石で、中央部がケー
ス３の外部中央に設けた支軸に対し軸受を介して取付け
られ、他方は車体１３に固定するか、必要により図５に
示すように、電磁石１２ａ，１２ｂの中央を軸受を介し
て直接回転軸２に取付け他方をエンジンブロック１３′
に固定して電磁石をケース３の後面側に取付けるように
してもよい。また弁部材１１ａ，１１ｂはばね１３ａ，
１３ｂによって一方向に変位させられている。Next, 9 is a vane pump mechanism;
a is a rotor attached to the tip of the rotating shaft 2, and 9b is a rotor attached to the tip of the rotating shaft 2;
is a vane, and the case 3 and drive disk 4 (rotating shaft 2
) is rotated by the difference in rotational speed caused by the slip between the two. Although the illustrated embodiment will be explained based on a vane pump mechanism, a trochoid pump, a gap pump, etc. can also be used in the present invention. The oil feed path 10a of this pump mechanism 9 is the supply path 8a, and the oil lift path 10b is the discharge path 8.
a valve member 11a that closes the passage to the torque transmission chamber 6 and opens the oil feed passage 10a and the oil reservoir chamber 7, and a valve member 11a that closes the discharge passage 8b and opens the oil reservoir chamber 7. A valve member 11b connected to the oil lifting path 10b is provided. These valve members 11a and 11b are magnetic, and either made of a magnetic material or attached with a piece of magnetic material, and are operated by a pair of electromagnets 12a and 12b provided on the front side of the case 3. . The electromagnets 12a and 12b are ring-shaped electromagnets arranged concentrically, and the central part is attached to a support shaft provided at the center of the outside of the case 3 via a bearing, and the other part is fixed to the vehicle body 13, or If necessary, as shown in FIG. 5, the centers of the electromagnets 12a and 12b are directly attached to the rotating shaft 2 via bearings, and the other is attached to the engine block 13'.
Alternatively, the electromagnet may be fixed to the rear side of the case 3. Further, the valve members 11a, 11b are springs 13a,
13b in one direction.
【００１２】なお、電磁石１２ａ，１２ｂをリング状で
はなくブロック状に形成して図７のように弁部材１１ａ
，１１ｂに対応してケース３の外壁に固定しスリップリ
ングコンタクト１５を介して給電されて励磁されるよう
構成したり、また弁部材１１ａ，１１ｂの回転軌跡に対
応する位置に支持片により外部に固定して配設しケース
１の回転毎に吸引してもよい。Note that the electromagnets 12a and 12b are formed not in a ring shape but in a block shape to form a valve member 11a as shown in FIG.
, 11b, the valve members 11a, 11b are fixed to the outer wall of the case 3 and are supplied with power through the slip ring contact 15 to be energized. It may be fixedly arranged and sucked every time the case 1 rotates.
【００１３】また、図５において想像線で示した１６は
電磁石であり、１７はケース３に設けた舌片状磁性体片
であって、冷間始動時等のケース３の回転が不要の際に
電磁石を励磁して磁性体片１７を吸引して制動し、ウオ
ーミングアップを早めたり、ファン騒音を発生させない
ために設けられたものである。5 is an electromagnet, and 17 is a tongue-like magnetic piece provided in the case 3, which is used when the case 3 does not need to rotate, such as during cold starting. This is provided in order to excite the electromagnet to attract the magnetic material piece 17 and brake it, thereby speeding up warming up and preventing fan noise from being generated.
【００１４】以上のような構成において、ケース３、即
ちファン３ａを定常回転（一定回転） したい時は、図
１に示すように電磁石１２ａ，１２ｂを励磁せず弁部材
１１ａ，１１ｂを作動させないことにより、油溜り室７
からトルク伝達室６に連通する供給側と排出側への一組
の弁部材１１ａ，１１ｂは閉じ、ポンプ機構９は単に油
溜り室７の油を揚油路１０ｂから吸引加圧して送油路１
０ａを介して循環するのみで、トルク伝達室６内の油は
常に一定である。従ってファン３ａは常時一定回転をす
る。In the above configuration, when the case 3, that is, the fan 3a, is desired to rotate steadily (constant rotation), the electromagnets 12a, 12b are not energized and the valve members 11a, 11b are not operated, as shown in FIG. Due to oil sump chamber 7
A pair of valve members 11a and 11b on the supply side and the discharge side communicating with the torque transmission chamber 6 are closed, and the pump mechanism 9 simply suctions and pressurizes the oil in the oil reservoir chamber 7 from the oil pumping passage 10b to supply the oil to the oil supply passage 1.
The oil in the torque transmission chamber 6 is always constant because it only circulates through the oil 0a. Therefore, the fan 3a always rotates at a constant rate.
【００１５】次にファン３ａの回転を加速したい場合は
、図３に示すように弁部材１１ｂは閉じた状態で、電磁
石１２ａを励磁して弁部材１１ａのみを開けば、油は油
溜り室７から揚油路１０ｂを介して吸引されポンプ機構
９で加圧され、さらに送油路１０ａから供給路８ａを通
ってトルク伝達室６内に供給される。なおトルク伝達室
６内の油は排油路８ｂを通って排出はされることがない
ので、トルク伝達間隙の油量は増加しファンは加速され
ていく。Next, when it is desired to accelerate the rotation of the fan 3a, the valve member 11b is closed and the electromagnet 12a is energized to open only the valve member 11a, as shown in FIG. The oil is sucked in through the pumping path 10b, pressurized by the pump mechanism 9, and further supplied into the torque transmission chamber 6 from the oil feeding path 10a through the supply path 8a. Note that since the oil in the torque transmission chamber 6 is not discharged through the oil drain path 8b, the amount of oil in the torque transmission gap increases and the fan is accelerated.
【００１６】反対に、減速したい場合は、図４に示すよ
うに供給の弁部材１１ａを閉じ、電磁石１２ｂを励磁し
て排出側の弁部材１１ｂを開ければ、油は供給路８ａか
らトルク伝達室６には供給されず、トルク伝達室６の油
は排出路８ｂを通り送油路１０ｂから吸引されポンプ機
構９で加圧されて送油路１０ａを通って油溜り室７に戻
される。したがってトルク伝達室６内の油は排出される
のみとなりトルク伝達間隙の油量は減少しファン３ａの
速度は遅くなる。On the other hand, when deceleration is desired, the supply valve member 11a is closed and the electromagnet 12b is energized to open the discharge side valve member 11b, as shown in FIG. 6, the oil in the torque transmission chamber 6 passes through the discharge path 8b, is sucked from the oil feed path 10b, is pressurized by the pump mechanism 9, and is returned to the oil reservoir chamber 7 through the oil feed path 10a. Therefore, the oil in the torque transmission chamber 6 is only discharged, the amount of oil in the torque transmission gap decreases, and the speed of the fan 3a decreases.
【００１７】また、図５、図６に示すように、組立て又
は保守等に便利なように弁部材１１ａ，１１ｂをプラグ
式にしてケース３に着脱自在としてもよく、さらにポン
プ機構９をワッシャ１４によりケース３内に着脱自在に
取付けてもよい。Further, as shown in FIGS. 5 and 6, the valve members 11a and 11b may be plug-type so that they can be attached and detached from the case 3 for convenience in assembly or maintenance. It may also be removably attached within the case 3.
【００１８】電磁石１２ａ，１２ｂは制御装置２３から
駆動条件に応じ必要な各種の因子 （図ではファン回転
、回転軸の回転数、冷却水温のセンサ２０，２１，２２
の出力信号）にもとずき調整された励磁電流が発せられ
て弁部材１１ａ，１１ｂの動作を制御することになる。The electromagnets 12a and 12b are controlled by a control device 23 according to various factors required depending on the driving conditions (in the figure, sensors 20, 21, 22 for fan rotation, rotation speed of the rotating shaft, and cooling water temperature)
An regulated excitation current is generated based on the output signal of the valve member 11a, 11b to control the operation of the valve members 11a and 11b.
【００１９】次に、このような図１による構成の実施例
の動作を図面を参照して説明する。Next, the operation of the embodiment having the configuration shown in FIG. 1 will be explained with reference to the drawings.
【００２０】図８は１つの実施例の制御動作の動作説明
図であり、この実施例ではファンの回転数としてのファ
ン速度信号はＮｆ、回転軸の回転数としてのエンジン速
度信号Ｎｅ、冷却装置の冷却水の水温としての水温信号
Ｔｗが各センサ２０，２１，２２からの出力信号Ｓとし
て制御装置２３に取り込まれる。制御装置２３の特性デ
ータ演算回路部ではこれらの出力信号Ｓに基づいて、同
図Ｄに示すファン速度とエンジン速度間特性データ（Ａ
）、ファン速度と冷却水温度間特性データ（Ｂ） 、及
びエンジン速度の時間特性データ（Ｃ）を特性データと
して演算する。FIG. 8 is an explanatory diagram of the control operation of one embodiment. In this embodiment, the fan speed signal as the number of rotations of the fan is Nf, the engine speed signal Ne as the number of rotations of the rotating shaft, and the cooling device. A water temperature signal Tw representing the temperature of the cooling water is taken into the control device 23 as an output signal S from each sensor 20, 21, 22. Based on these output signals S, the characteristic data calculation circuit section of the control device 23 calculates characteristic data between fan speed and engine speed (A) shown in FIG.
), characteristic data between fan speed and cooling water temperature (B), and time characteristic data of engine speed (C) are calculated as characteristic data.
【００２１】これらの特性データＤ（（Ａ）（Ｂ）（Ｃ
））と前記出力信号Ｓ（Ｎｅ、Ｔｗ、Ｎｆ）に基づいて
、制御装置２３の制御データ演算回路部で制御データが
演算され、得られる制御データに基づいて電磁石１２ａ
，１２ｂに励磁電流を必要時間供給し、トルク伝達室６
内の油量を制御する。即ち図８のステップＳ１では、エ
ンジン速度信号Ｎｅとエンジン速度の時間特性データ（
Ｃ）に基づいて、エンジンが加速状態にあるかどうかの
判定が、条件式ｄＮｅ／ｄｔ＞ｄｎｅ／ｄｔ（但しｄｎ
ｅ／ｄｔは制御装置２３に記憶されたエンジン回転数の
変化率）により判定される。ステップＳ１の判定がＹＥ
Ｓであると、ステップＳ２に進んでＮｆ＝Ｎｏｆｆとし
てファン速度Ｎｆが最小ファン速度Ｎｏｆｆに設定され
、ステップＳ５に進む。尚、車両の要求特性によっては
、ステップＳ１の判定がＮＯであっても、発進加速中及
び／又は加速後エンジン高回転数維持中にステップＳ２
に進めたり、又はＮｏｆｆ信号が出た後の所定時間ステ
ップＳ２を維持したり、或いはステップＳ１の判定がＹ
ＥＳであっても冷却水温度が過熱気味である間及び／又
は空調装置がＯＮ状態でエンジン回転数が比較的低い場
合にステップＳ３に戻すように構成してもよし、又はＮ
ｆ＝ＮｏｎとしてステップＳ５に進んでもよい。
そして、ステップＳ５において、ファン演算速度ｎｆと
入力されるファン速度信号Ｎｆを比較して制御が決定さ
れ、ステップＳ５の判断に従ってステップＳ６で電磁石
１２ａ，１２ｂの制御が行われ、上記の通りケース３（
ファン３ａ）を定常回転、加速又は減速する。These characteristic data D((A)(B)(C)
)) and the output signal S (Ne, Tw, Nf), control data is calculated in the control data calculation circuit section of the control device 23, and the electromagnet 12a is calculated based on the obtained control data.
, 12b for the necessary time, the torque transmission chamber 6
Controls the amount of oil inside. That is, in step S1 of FIG. 8, the engine speed signal Ne and the engine speed time characteristic data (
Based on C), the conditional expression dNe/dt>dne/dt (however, dn
e/dt is determined based on the rate of change in engine speed stored in the control device 23. Judgment in step S1 is YES
If S, the process proceeds to step S2 where Nf=Noff, the fan speed Nf is set to the minimum fan speed Noff, and the process proceeds to step S5. Note that depending on the required characteristics of the vehicle, even if the determination in step S1 is NO, step S2 may be performed during start acceleration and/or while maintaining a high engine speed after acceleration.
or maintain step S2 for a predetermined time after the Noff signal is output, or if the determination in step S1 is Y.
Even in ES, it may be configured to return to step S3 while the cooling water temperature is slightly overheated and/or when the air conditioner is on and the engine speed is relatively low, or N
You may set f=Non and proceed to step S5. Then, in step S5, control is determined by comparing the fan calculation speed nf and the input fan speed signal Nf, and the electromagnets 12a and 12b are controlled in step S6 according to the judgment in step S5. (
The fan 3a) is rotated steadily, accelerated or decelerated.
【００２２】前述のステップＳ１の判定がＮＯであると
、ステップＳ３に進んで最大ファン速度Ｎｏｎと最小フ
ァン速度Ｎｏｆｆの演算が行われ、次いでステップＳ４
に進んでファン速度をｎｆ＝ｆ（Ｎｏｆｆ，Ｎｏｎ，Ｔ
ｗ，Ｔ１，Ｔ２）により演算する。例えば冷却水温度に
対してファン速度をリニアに制御する場合には、てステ
ップＳ５に進んで得られたファン演算速度ｎｆと入力さ
れるファン速度信号Ｎｆとを比較して制御が決定され、
ステップＳ５の判断に従ってステップＳ６で電磁石１２
ａ，１２ｂの制御が行われ、上記の通りケース３（ファ
ン３ａ）を定常回転、加速又は減速する。If the determination in step S1 is NO, the process proceeds to step S3 where the maximum fan speed Non and minimum fan speed Noff are calculated, and then step S4
and set the fan speed to nf=f(Noff, Non, T
w, T1, T2). For example, when controlling the fan speed linearly with respect to the cooling water temperature, control is determined by comparing the fan calculation speed nf obtained by proceeding to step S5 and the input fan speed signal Nf,
In step S6, the electromagnet 12
A and 12b are controlled, and the case 3 (fan 3a) is rotated steadily, accelerated, or decelerated as described above.
【００２３】このように制御することにより、トルク伝
達室６内のシリコン油の量を高精度で且つ広範囲に変化
させている。By controlling in this way, the amount of silicone oil in the torque transmission chamber 6 can be changed with high precision over a wide range.
【００２４】実施例においては、エンジン１の冷却水の
水温の上限水温付近で、冷却水の温度上昇が大きい場合
にはファン回転数を上昇させる。逆に、冷却水の温度が
下がってきたらファン回転数を低下させる。また図９に
示すように、回転軸２の回転数が急上昇した場合には点
線で示すように、ファン回転数を低下させる方向に制御
し、斜線で示されるようなファン回転数の低減効果を発
揮する。In the embodiment, when the temperature of the cooling water in the engine 1 is near the upper limit water temperature and the temperature of the cooling water increases significantly, the fan rotation speed is increased. Conversely, when the temperature of the cooling water drops, the fan rotation speed is reduced. Furthermore, as shown in FIG. 9, when the rotational speed of the rotating shaft 2 suddenly increases, the fan rotational speed is controlled to decrease as shown by the dotted line, and the fan rotational speed is reduced as shown by the diagonal line. Demonstrate.
【００２５】また、図１０に示すように回転軸２とファ
ン３ａの回転特性において、エンジン１の冷却水温度が
通常の温度の状態ではＢ領域で制御が行われるが、冷却
水温度で上限水温を越えるとＡ領域で制御が行われる。Furthermore, as shown in FIG. 10, in terms of the rotational characteristics of the rotating shaft 2 and the fan 3a, when the cooling water temperature of the engine 1 is at a normal temperature, control is performed in region B; When the value exceeds 0, control is performed in area A.
【００２６】以上のように制御することにより、実施例
では油溜り室７の油をトルク伝達室６内に送り込み或い
はトルク伝達室６の油を油溜り室７に戻すことにより迅
速、高精度で、かつ広範囲に変化させている。このため
、エンジン１の冷却水の温度、回転軸２の回転数（エン
ジン１の回転数に比例）及びファン３ａの回転数に対応
した適量の油がトルク伝達室６に送り込まれ、或いは伝
達室６内の油の量が適量となるようトルク伝達室６から
油が戻される。そしてトルク伝達室６内に存在する適量
の油を介して駆動ディスク４のトルクがケース３に伝達
されてファン３ａが回転する。By controlling as described above, in the embodiment, the oil in the oil sump chamber 7 is sent into the torque transmission chamber 6 or the oil in the torque transmission chamber 6 is returned to the oil sump chamber 7, thereby quickly and with high precision. , and has changed extensively. Therefore, an appropriate amount of oil corresponding to the temperature of the cooling water of the engine 1, the rotation speed of the rotating shaft 2 (proportional to the rotation speed of the engine 1), and the rotation speed of the fan 3a is sent to the torque transmission chamber 6, or Oil is returned from the torque transmission chamber 6 so that the amount of oil in the torque transmission chamber 6 becomes an appropriate amount. Then, the torque of the drive disk 4 is transmitted to the case 3 through an appropriate amount of oil present in the torque transmission chamber 6, and the fan 3a rotates.
【００２７】このようにして実施例によると、エンジン
１の冷却水の温度、エンジン１の回転数及びファン３ａ
の回転数に対応した最適の油をトルク伝達室６内に存在
させて、図９に示すようにファン３ａの回転数が大幅に
変化しない状態で制御が行われる。そしてエンジン１の
冷却水の温度もほぼ一定に保たれ、冷間始動や高速道路
での走行や急加速にも適応した最適の条件で制御が行わ
れ、ファン３ａの騒音も低下し、無駄な燃料消費が防止
される。In this manner, according to the embodiment, the temperature of the cooling water of the engine 1, the rotation speed of the engine 1, and the fan 3a
The optimum oil corresponding to the rotational speed of the fan 3a is present in the torque transmission chamber 6, and control is performed in a state where the rotational speed of the fan 3a does not change significantly as shown in FIG. The temperature of the cooling water in the engine 1 is also kept almost constant, and control is performed under optimal conditions that are suitable for cold starts, driving on highways, and sudden acceleration, and the noise of the fan 3a is also reduced, reducing waste. Fuel consumption is prevented.
【００２８】なお、実施例では、エンジンの冷却水温度
、エンジンの回転数及びファンの回転数に基づいてトル
ク伝達室内への油量を制御するものを説明したが、本発
明は実施例に限定されるものでなく、例えば上記因子の
少くとも１つ、或いはこれらに加えて走行風量、外気温
、吸気温度、車速、スロットル開度、気圧、ノッキング
の有無、エアコン状態、排気ブレーキ状態等をも制御因
子に加えた構成とすることもできる。[0028] In the embodiment, a case has been described in which the amount of oil in the torque transmission chamber is controlled based on the engine cooling water temperature, engine rotation speed, and fan rotation speed, but the present invention is limited to the embodiment. For example, at least one of the above factors, or in addition to these factors, running air volume, outside temperature, intake air temperature, vehicle speed, throttle opening, air pressure, presence or absence of knocking, air conditioner condition, exhaust brake condition, etc. It can also be configured in addition to the control factors.
【００２９】[0029]
【発明の効果】以上説明したように、本発明の液体クラ
ッチはケースと駆動ディスク（回転軸） との回転数の
差を利用して駆動されるポンプ機構を内蔵して油を強制
循環させかつ該ポンプ機構の排出側及び供給側の連通路
に外部の電磁石により作動する弁部材及びこれを制御す
る制御装置を設け、駆動部の駆動条件に対応して駆動デ
ィスクとケースのトルク伝達間隙に供給される油を迅速
かつ高精度に制御することにより、前記諸駆動条件に対
応して駆動ディスクの駆動トルクを常時最適の伝達状態
でケースに伝達し、各種の駆動条件下で所望のリニア特
性等の最適のクラッチ動作を行うことができ、ファン騒
音を低減し、燃料を節約できると共に加速性能を向上す
ることができる等の多くの効果が期待できる。[Effects of the Invention] As explained above, the liquid clutch of the present invention has a built-in pump mechanism that is driven by utilizing the difference in rotational speed between the case and the drive disk (rotating shaft) to force oil circulation. A valve member operated by an external electromagnet and a control device for controlling the valve member are provided in the communication passages on the discharge side and the supply side of the pump mechanism, and a valve member operated by an external electromagnet and a control device for controlling the valve member are provided to supply torque to the torque transmission gap between the drive disk and the case in accordance with the drive conditions of the drive unit. By quickly and precisely controlling the oil applied to the drive disk, the drive torque of the drive disk is always transmitted to the case in an optimal transmission state corresponding to the various drive conditions, and the desired linear characteristics etc. are achieved under various drive conditions. Many effects can be expected, including the ability to perform optimal clutch operation, reduce fan noise, save fuel, and improve acceleration performance.
【図１】本発明の１実施例を示す全体の断面図である。FIG. 1 is an overall sectional view showing one embodiment of the present invention.
【図２】図１の内部ポンプ機構部分を切断した側面図で
ある。FIG. 2 is a cutaway side view of the internal pump mechanism in FIG. 1;
【図３】本発明の動作を示す説明図である。FIG. 3 is an explanatory diagram showing the operation of the present invention.
【図４】本発明の他の動作を示す説明図である。FIG. 4 is an explanatory diagram showing another operation of the present invention.
【図５】本発明の他の実施例を示す断面図である。FIG. 5 is a sectional view showing another embodiment of the present invention.
【図６】本発明の更に他の実施例を示す断面図である。FIG. 6 is a sectional view showing still another embodiment of the present invention.
【図７】本発明の更に別の実施例を示す断面図である。FIG. 7 is a sectional view showing still another embodiment of the present invention.
【図８】本発明の動作を示すフローチャートである。FIG. 8 is a flowchart showing the operation of the present invention.
【図９】本発明の動作特性を示す図である。FIG. 9 is a diagram showing the operating characteristics of the present invention.
【図１０】本発明の動作特性を示す他の図である。FIG. 10 is another diagram showing the operating characteristics of the present invention.
１ 駆動部 ２ 回転軸 ３ ケース ３ａ ファン ４ 駆動ディスク ５ 隔壁 ６ トルク伝達室 ７ 油溜り室 ８ａ 供給路 ８ｂ 排出路 ９ ポンプ機構 １０ａ 送油路 １０ｂ 揚油路 １１ａ，１１ｂ 弁部材 １２ａ，１２ｂ 電磁石 ２３ 制御装置 1 Drive part 2 Rotation axis 3 Case 3a fan 4 Drive disk 5 Partition wall 6 Torque transmission chamber 7 Oil sump room 8a Supply path 8b Discharge path 9 Pump mechanism 10a Oil line 10b Oil pumping route 11a, 11b Valve member 12a, 12b Electromagnet 23 Control device
Claims (8)
る回転軸と、この回転軸により回転駆動する駆動ディス
クと、この駆動ディスクが収容され前記回転軸を中心に
回転自在に配設されるケースと、該ケース内に前記駆動
ディスクを内装せしめたトルク伝達室と油を集溜する油
溜り室を設け、油が前記油溜り室から前記トルク伝達室
に供給されて前記駆動ディスクの駆動トルクを前記ケー
スに伝達するようにした液体クラッチにおいて、油溜り
室とトルク伝達室とが連通する供給と排出の一組の第１
流通路と、この第１流通路の夫々に接続され、その中間
に回転軸とケース間の回転数の差を利用したポンプ機構
を介在せしめた第２流通路とを具備し、かつ第１流通路
と第２流通路の接続部に、前記ポンプ機構と油溜り室又
はトルク伝達室とを選択的に接続するよう開閉する磁性
を有する弁部材を設け、この弁部材を動作させる電磁石
を外部に設けた液体クラッチ。1. A drive unit, a rotation shaft rotated by the drive unit, a drive disk rotationally driven by the rotation shaft, and a case in which the drive disk is housed and is rotatably arranged around the rotation shaft. A torque transmission chamber in which the driving disk is housed and an oil reservoir chamber for collecting oil are provided in the case, and oil is supplied from the oil reservoir chamber to the torque transmission chamber to increase the driving torque of the driving disk. In the liquid clutch configured to transmit data to the case, the first set of supply and discharge, in which the oil reservoir chamber and the torque transmission chamber communicate with each other,
The first flow path includes a flow path, and a second flow path connected to each of the first flow paths and having a pump mechanism interposed therebetween that utilizes the difference in rotational speed between the rotating shaft and the case. A magnetic valve member that opens and closes to selectively connect the pump mechanism and the oil reservoir chamber or the torque transmission chamber is provided at the connection between the passage and the second flow passage, and an electromagnet for operating the valve member is provided externally. Liquid clutch provided.
られている請求項１の液体クラッチ。2. The liquid clutch according to claim 1, wherein a cooling fan is attached to the case.
を更に設けた請求項１又は２の液体クラッチ。3. The liquid clutch according to claim 1, further comprising a control device for controlling excitation of the electromagnet.
水の水温を検出するセンサからの出力信号に基づき各電
磁石への励磁電流を制御する請求項３の液体クラッチ。4. The liquid clutch according to claim 3, wherein the control device controls the excitation current to each electromagnet based on an output signal from a sensor that detects the temperature of cooling water that cools the drive section.
回転数又は回転軸の回転数を検出するセンサからの出力
信号に基づく各電磁石への励磁電流を制御する請求項４
の液体クラッチ。5. The control device further controls the excitation current to each electromagnet based on an output signal from a sensor that detects at least the rotation speed of the case or the rotation speed of the rotating shaft.
liquid clutch.
クに取付けられた請求項１又は２の液体クラッチ。6. The liquid clutch according to claim 1, wherein the electromagnet is attached to a vehicle body or an engine block.
固着され、該ケースに設けたスリップリングコンタクト
により前記電磁石に給電する請求項１又は２の液体クラ
ッチ。7. The liquid clutch according to claim 1, wherein the electromagnet is fixed to a case of the liquid clutch, and power is supplied to the electromagnet by a slip ring contact provided in the case.
着脱自在とした請求項１又は２の液体クラッチ。8. The liquid clutch according to claim 1, wherein the valve member is provided on a plug and is detachable from the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7595291A JP2911624B2 (en) | 1991-02-07 | 1991-02-07 | Liquid clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7595291A JP2911624B2 (en) | 1991-02-07 | 1991-02-07 | Liquid clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04258530A true JPH04258530A (en) | 1992-09-14 |
| JP2911624B2 JP2911624B2 (en) | 1999-06-23 |
Family
ID=13591069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7595291A Expired - Fee Related JP2911624B2 (en) | 1991-02-07 | 1991-02-07 | Liquid clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2911624B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6695113B2 (en) * | 2001-05-11 | 2004-02-24 | Horton Sachs Gmbh & Co., Kg | Viscous coupling |
| US6807926B2 (en) | 2002-02-14 | 2004-10-26 | Usui Kokusai Sangyo Kaisha Limited | Control method for outside control type fan coupling apparatus |
| EP1566526A2 (en) * | 2004-02-23 | 2005-08-24 | Behr GmbH & Co. KG | Adjustable drive for motor vehicule |
| KR100643624B1 (en) * | 2003-04-21 | 2006-11-10 | 우수이 고쿠사이 산교 가부시키가이샤 | Control method of external control type fan clutch |
| KR100839137B1 (en) * | 2004-12-10 | 2008-06-20 | 우수이 고쿠사이 산교 가부시키가이샤 | Control method of magnet type fan clutch |
| JP2015218838A (en) * | 2014-05-19 | 2015-12-07 | 臼井国際産業株式会社 | High reaction fluid type fan and clutch device |
-
1991
- 1991-02-07 JP JP7595291A patent/JP2911624B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6695113B2 (en) * | 2001-05-11 | 2004-02-24 | Horton Sachs Gmbh & Co., Kg | Viscous coupling |
| US6807926B2 (en) | 2002-02-14 | 2004-10-26 | Usui Kokusai Sangyo Kaisha Limited | Control method for outside control type fan coupling apparatus |
| KR100643624B1 (en) * | 2003-04-21 | 2006-11-10 | 우수이 고쿠사이 산교 가부시키가이샤 | Control method of external control type fan clutch |
| EP1566526A2 (en) * | 2004-02-23 | 2005-08-24 | Behr GmbH & Co. KG | Adjustable drive for motor vehicule |
| EP1566526A3 (en) * | 2004-02-23 | 2006-01-18 | Behr GmbH & Co. KG | Adjustable drive for motor vehicule |
| US7828529B2 (en) | 2004-02-23 | 2010-11-09 | Behr Gmbh & Co. Kg | Regulatable drive for a motor vehicle component |
| KR100839137B1 (en) * | 2004-12-10 | 2008-06-20 | 우수이 고쿠사이 산교 가부시키가이샤 | Control method of magnet type fan clutch |
| US7488271B2 (en) | 2004-12-10 | 2009-02-10 | Usui Kokusai Sangyo Kaisha Limited | Control method of magnet type fan clutch |
| JP2015218838A (en) * | 2014-05-19 | 2015-12-07 | 臼井国際産業株式会社 | High reaction fluid type fan and clutch device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2911624B2 (en) | 1999-06-23 |
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