JPH0293126A - Viscous fluid joint device - Google Patents
Viscous fluid joint deviceInfo
- Publication number
- JPH0293126A JPH0293126A JP24665588A JP24665588A JPH0293126A JP H0293126 A JPH0293126 A JP H0293126A JP 24665588 A JP24665588 A JP 24665588A JP 24665588 A JP24665588 A JP 24665588A JP H0293126 A JPH0293126 A JP H0293126A
- Authority
- JP
- Japan
- Prior art keywords
- viscous fluid
- engine
- temperature
- fan
- water temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 18
- 238000005859 coupling reaction Methods 0.000 claims description 18
- 230000006903 response to temperature Effects 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 abstract description 9
- 230000009471 action Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 description 6
- 230000020169 heat generation Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- 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
- F16D35/023—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 by a bimetallic coil
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は一般に自動車エンジンの冷却ファン装置に適用
される粘性流体継手装置に関するもので、より詳しくは
エンジン水温の温度に直接感応して出力ｌ・ルク伝達を
連続的に制御することを可能にした温度感応型粘性流体
に毬手装置に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention generally relates to a viscous fluid coupling device applied to a cooling fan device of an automobile engine, and more specifically, it relates to a viscous fluid coupling device that is generally applied to a cooling fan device of an automobile engine. This invention relates to a temperature-sensitive viscous fluid control device that makes it possible to continuously control output l/lux transmission.
（従来の技術）
この種粘性流体継手装置は、一般にエンジンによって駆
動される回転シャフト上にヘアリングを介してケーシン
グが回転自在に支承され、該ケーシングの内部空間に収
容されてロータが前記回転シャフトに結合される。ケー
シングに固定される仕切板により前記内部空間はロータ
を収容する作動室と粘性流体を貯える貯蔵室とに分離さ
れる。ロータとケーシングとの相対する面には第１トル
ク伝達面が形成され、一方ロタと仕切板との相対する面
にも第２トルク伝達面が形成される。仕切板には貯蔵室
から作動室へ粘性流体を還流させる戻し穴が形成され、
ラジェーク通過空気温を検知して作動する渦巻状バイメ
タルがケーシングの前面に装着され、該バイメタルに連
結され前記仕切板上を回動するパルプ板により前記戻し
穴が開閉制御される。(Prior Art) In this type of viscous fluid coupling device, a casing is generally rotatably supported on a rotating shaft driven by an engine via a hair ring, and a rotor is housed in an internal space of the casing and a rotor is mounted on the rotating shaft. is combined with A partition plate fixed to the casing separates the internal space into a working chamber that accommodates the rotor and a storage chamber that stores viscous fluid. A first torque transmission surface is formed on the opposing surfaces of the rotor and the casing, and a second torque transmission surface is also formed on the opposing surfaces of the rotor and the partition plate. A return hole is formed in the partition plate to circulate the viscous fluid from the storage chamber to the working chamber.
A spiral bimetal actuated by detecting the air temperature passing through the radiator is mounted on the front surface of the casing, and the opening and closing of the return hole is controlled by a pulp plate connected to the bimetal and rotating on the partition plate.
即ち、低温時に於いてはパルプ板は戻し穴を閉じる位置
に保持され、温度が上昇するにつれて前記パルプ板が回
動して戻し穴の開度を大きくし、貯蔵室から作動室への
粘性流体の還流を増加させ、回転シャフトからケーシン
グへのトルク伝達を増大させるように制御する。That is, at low temperatures, the pulp plate is held in a position where the return hole is closed, and as the temperature rises, the pulp plate rotates to widen the opening of the return hole, allowing viscous fluid to flow from the storage chamber to the working chamber. control to increase the reflux of the rotor and increase the torque transmission from the rotating shaft to the casing.
しかるに、こうした−数的な粘性流体継手装置では、温
度感応部材であるバイメタルがケーシングの前面、即ち
エンジンルームの内部空間に取付けられているため、エ
ンジンの発熱量を的確に把握できず、従って、例えばエ
ンジン発熱量が低い場合にもエンジンルーム内の気温が
上昇すればファン回転数を高速回転にしてしまうという
問題があった。However, in such numerical viscous fluid coupling devices, since the bimetal, which is a temperature sensitive member, is attached to the front of the casing, that is, the internal space of the engine room, it is not possible to accurately determine the amount of heat generated by the engine. For example, even when the engine heat generation amount is low, there is a problem in that if the temperature in the engine room rises, the fan rotation speed becomes high.
こうした点を解決すべく提案された温度感応型粘性流体
継手装置が、例えば特開昭６１−７９０３１号公報、特
開昭６１−５８９１３号公報に開示されている。Temperature-sensitive viscous fluid coupling devices proposed to solve these problems are disclosed in, for example, Japanese Patent Laid-Open No. 61-79031 and Japanese Patent Laid-Open No. 61-58913.
第４図は前記公報に開示された粘性流体継手装置の１例
を示すもので、同図から明らかな如く、粘性流体継手Ｃ
とウォータポンプＰの各回転シャフト３１．３２の貫通
穴内に第１０ソド３３と第２０ソド３４が連結されて挿
入され、うオータボンプＰの渦室３５内に臨む第１０ン
ド端部にはサーモワックスによる温度感応部材３６が装
着され、他方の第２０ツト端部はスプリング３７により
イ」勢されるガイド部材３８によりポール３９を介して
軸方向に押圧されている。ガイド部材３８はカバー４０
の前面に設置されたバイメタル４１の動きに連動して回
動すると共に軸方向に移動可能なように構成され、バル
ブプレート４２が前記ボール側端面に固着される。他の
構成は上記一般の粘性流体継手構造と殆んど変わらない
。FIG. 4 shows an example of the viscous fluid coupling device disclosed in the above publication, and as is clear from the figure, the viscous fluid coupling C
The 10th rod 33 and the 20th rod 34 are connected and inserted into the through holes of the rotating shafts 31 and 32 of the water pump P, and the end of the 10th rod facing into the vortex chamber 35 of the water pump P is coated with thermowax. A temperature sensitive member 36 is attached thereto, and the other 20th end is pushed in the axial direction via a pawl 39 by a guide member 38 which is biased by a spring 37. The guide member 38 is a cover 40
The valve plate 42 is configured to rotate in conjunction with the movement of a bimetal 41 installed on the front surface of the valve and to be movable in the axial direction, and a valve plate 42 is fixed to the end surface on the ball side. The other configurations are almost the same as the general viscous fluid joint structure described above.
以上の構成により、温度が第１所定温度より低い低温時
に於いては、仕切板４３上に配設された第１、第２戻し
穴４４．４５はバルブプレート４２により夫々閉じられ
、ファン回転はＯＦＦ状態に保持される。温度上昇に伴
い第１所定温度に達すると、バイメタル４１がラジェー
タ通過空気温を検出し、バイメタル４１に連動するバル
ブプレート４２が仕切板４３上を回動し、外径側の第１
戻し穴４４を開き、ファン回転をＭＩＤＤＬＥ状態に保
持する。更に温度が上昇し第２所定温度に達すると、サ
ーモワックスによる温度感応部材３６がウォータポンプ
Ｐの渦室３５内の水温を検出し、温度感応部材３６に連
動してバルブプレート４２が軸方向に移動し内径側の第
２戻し穴４５を開き、ファン回転はＯＮ状態に保持する
。従って、バイメタル４１は第１戻し穴４４を開閉する
ためにバルブプレート４２を回動させて、ファン回転を
ＯＦＦとＭＩＤＤＬＥ状態に切替制御するものであり、
一方の渦室内の温度感応部材３６は第２戻し穴４５を開
閉するためにバルブプレート４２を軸方向に移動させ、
ファン回転をＭ Ｉ Ｄ Ｉ）Ｌ ＥとＯＮ状態に切替
制御しようとするものである。With the above configuration, when the temperature is lower than the first predetermined temperature, the first and second return holes 44 and 45 provided on the partition plate 43 are respectively closed by the valve plate 42, and the fan rotation is stopped. It is kept in the OFF state. When the temperature reaches the first predetermined temperature as the temperature rises, the bimetal 41 detects the air temperature passing through the radiator, and the valve plate 42 interlocked with the bimetal 41 rotates on the partition plate 43,
Open the return hole 44 and keep the fan rotation in the MIDDLE state. When the temperature further increases and reaches a second predetermined temperature, the thermowax temperature sensitive member 36 detects the water temperature in the vortex chamber 35 of the water pump P, and in conjunction with the temperature sensitive member 36, the valve plate 42 moves in the axial direction. The fan is moved to open the second return hole 45 on the inner diameter side, and the fan rotation is maintained in the ON state. Therefore, the bimetal 41 rotates the valve plate 42 to open and close the first return hole 44, and controls the fan rotation to be switched between the OFF and MIDDLE states.
Temperature sensitive member 36 in one vortex chamber axially moves valve plate 42 to open and close second return hole 45;
This is intended to control the rotation of the fan by switching it between the MID I)LE and ON states.
この様に、ファン回転のＭｒＤＤＬＥとＯＮ状態の切替
制御が、エンジン冷却水温を直接検出することによりな
されるので、エンジン発熱量に応じたファンの必要風量
を精度よく供給することができる。In this way, the switching control between MrDDLE and the ON state of the fan rotation is performed by directly detecting the engine cooling water temperature, so that the required air volume of the fan can be supplied with high accuracy according to the engine heat generation amount.
（発明が解決しようとする課題）
しかるに、エンジン冷却水温を直接検出してファン回転
数を制御する上記粘性流体継手装置にあっても、ウォー
タポンプの渦室内に設置される温度感応部材がサーモワ
ックスによるため、戻し穴の開閉するＯＮ、ＯＦＦ動作
しかできず、連続的なトルク伝達制御が不可能であり、
広い水温レンジに亘る細かな制御ができない。また、同
装置では温度感応部材として、バイメタルをケーシング
前面に取付けて併用しているため、バルブを作動させる
ロッドが入力回転と出力回転との間で相対的に回転する
ことになり、連接部分の摩耗が激しく信頼性に欠けるき
らいがある。また、上記構成では部品点数が多くなって
構造が複雑である。(Problem to be Solved by the Invention) However, even in the above-mentioned viscous fluid coupling device that directly detects the engine cooling water temperature to control the fan rotation speed, the temperature sensitive member installed in the vortex chamber of the water pump is made of thermowax. Therefore, only ON and OFF operations to open and close the return hole are possible, and continuous torque transmission control is impossible.
Fine control over a wide water temperature range is not possible. In addition, because this device uses a bimetal as a temperature-sensitive member attached to the front of the casing, the rod that operates the valve rotates relative to the input rotation and output rotation, and the connecting part They tend to wear out and be unreliable. Furthermore, the above configuration has a large number of parts and is complex in structure.
従って、本発明の目的は、この種温度感応型粘性流体継
手において、温度検出を直接水温により行い、かつ温度
変化に応じた連続的なトルク伝達も制御を可能にした構
造簡単な粘性流体継手装置を提供しようとするごとにあ
る。Therefore, an object of the present invention is to provide a viscous fluid coupling device with a simple structure in which temperature is detected directly by water temperature in this kind of temperature-sensitive viscous fluid coupling, and continuous torque transmission can also be controlled in response to temperature changes. Every time I try to provide that.
（課題を解決するための手段）
上記目的を達成するため、本発明はエンジンにより駆動
され、端部にロータを有する入力部材と、該入力部材を
囲み、該入力部材に回転自在に支承される出力部材と、
前記入力部材と前記出力部材間に形成され粘性流体が循
環する貯蔵室及び作動室と、温度変化に応じて開度を変
え前記貯蔵室から作動室に流れる流体量を制御するバル
ブとからなり、温度変化に対応して前記入力部材から前
記出力部材へのトルク伝達を制御する粘性流体継手装置
において、ウォータポンプの渦室内に渦巻状バイメタル
を取付け、該バイメタルの動きに連動させて上記バルブ
の開度を連続的に制御することを構成とし、これを上記
課題の解決手段とするものである。(Means for Solving the Problems) In order to achieve the above object, the present invention includes an input member that is driven by an engine and has a rotor at its end, and an input member that surrounds the input member and is rotatably supported by the input member. an output member;
It consists of a storage chamber and an operating chamber formed between the input member and the output member, in which viscous fluid circulates, and a valve that changes the degree of opening according to temperature changes and controls the amount of fluid flowing from the storage chamber to the operating chamber, In a viscous fluid coupling device that controls torque transmission from the input member to the output member in response to temperature changes, a spiral bimetal is installed in the vortex chamber of the water pump, and the valve is opened in conjunction with the movement of the bimetal. The present invention is designed to continuously control the temperature, and this is a means of solving the above problem.
（作用）
上記構成により渦状バイメタルはウォータポンプ内の水
温を直接検出して、その水温変化に応じてバルブプレー
トを回動させて戻し穴の開度を調節し、貯蔵室から作動
室に還流する粘性流体量を制御する。(Function) With the above configuration, the spiral bimetal directly detects the water temperature inside the water pump, rotates the valve plate according to the change in water temperature, adjusts the opening of the return hole, and returns the water from the storage chamber to the working chamber. Control the amount of viscous fluid.
即ち、エンジン発熱量が少なく、エンジン冷却水温が低
いときはバルブプレートの回動が小さく、戻し穴の開度
を小さくして作動室への粘性流体還流量を少なくし、小
さなトルク伝達でファンを低速回転させる。In other words, when the engine heat generation is low and the engine cooling water temperature is low, the rotation of the valve plate is small, the opening of the return hole is small, the amount of viscous fluid returned to the working chamber is reduced, and the fan is activated with small torque transmission. Rotate at low speed.
エンジン冷却水温が上昇するにつれてバルブプレートの
回動量も増加し、戻し穴の開度を大きくし、作動室への
粘性流体還流量を増やしてトルク伝達を大きくし、ファ
ン回転を高速にする。As the engine coolant temperature rises, the amount of rotation of the valve plate also increases, increasing the opening of the return hole, increasing the amount of viscous fluid returned to the working chamber, increasing torque transmission, and increasing the fan rotation speed.
このように本発明の粘性流体継手装置によれば、ファン
回転の制御中、温度感応部材はエンジン発熱量に最も関
係するエンジン冷却水の温度を直接検出し、しかも温度
変化に応じて作動室への粘性流体還流量を連続的に制御
するため、ファンの回転数の制御が連続してかつ的確に
行われる。In this way, according to the viscous fluid coupling device of the present invention, during control of fan rotation, the temperature sensitive member directly detects the temperature of the engine cooling water, which is most related to the engine heat output, and also detects the temperature of the engine cooling water in response to temperature changes. In order to continuously control the amount of viscous fluid returned, the rotation speed of the fan is continuously and precisely controlled.
（実施例） 以下、本発明を図示実施例に基づき詳しく説明する。(Example) Hereinafter, the present invention will be explained in detail based on illustrated embodiments.
第１図は本発明に係る粘性流体継手装置の代表的な実施
例を示し、図中１はロータであり、従来と同様にその回
転中心がプーリ２を介してエンジンより駆動される回転
シャフト３の先端に固着されている。FIG. 1 shows a typical embodiment of a viscous fluid coupling device according to the present invention. In the figure, 1 is a rotor, the rotation center of which is a rotary shaft 3 driven by an engine via a pulley 2, as in the past. is fixed to the tip of.
該ロータ１は中央部が円板１ａで構成され、該円板１ａ
の外周には環状の粘性流体貯蔵室４を形成すると共に、
前記円板１ａの前面と前記貯蔵室４のフランジ４ａ及び
内周壁面４ｂとの間に貯蔵室５を形成している。前記円
板１ａには粘性流体の戻し穴６が同−直径上に１個以上
形成され、前記環状の貯蔵室４を構成する前面壁４ｃの
外周部には、環状の貯蔵室４に直接通じる第１ポンプ孔
７と半径方向に通路８ａをもつ第２ポンプ孔８が同一円
周上に隣り合って形成され、第１ポンプ孔７のロータ回
転方向上流側と第２ポンプ孔８のロータ回転方向下流側
の近傍には突起１０が設けられ、ポンプ機構を構成する
。また、環状の貯蔵室４の外周壁面には歯切り部１１が
形成され、この部分で後述するポンプ機構を構成する。The rotor 1 has a central portion composed of a disk 1a, and the disk 1a
An annular viscous fluid storage chamber 4 is formed on the outer periphery of the
A storage chamber 5 is formed between the front surface of the disk 1a and the flange 4a and inner peripheral wall surface 4b of the storage chamber 4. One or more return holes 6 for the viscous fluid are formed in the disk 1a on the same diameter, and the outer peripheral part of the front wall 4c constituting the annular storage chamber 4 has a hole that directly communicates with the annular storage chamber 4. A first pump hole 7 and a second pump hole 8 having a passage 8a in the radial direction are formed adjacent to each other on the same circumference, and the first pump hole 7 is formed on the upstream side in the rotor rotation direction and the second pump hole 8 is formed on the upstream side in the rotor rotation direction. A protrusion 10 is provided near the downstream side in the direction and constitutes a pump mechanism. Further, a gear cut portion 11 is formed on the outer peripheral wall surface of the annular storage chamber 4, and this portion constitutes a pump mechanism to be described later.
１２はハウジングであり、前記ロータ１を囲むようにし
て軸受１３を介して前記回転シャフト３に回転自在に支
持される。A housing 12 surrounds the rotor 1 and is rotatably supported by the rotating shaft 3 via a bearing 13.
１４はウォータポンプＰの回転シャフトで、上記粘性流
体継手Ｃの回転シャフト３と同一軸心上で連結され、エ
ンジンの駆動力を同様に受ける。このウォータポンプＰ
の回転シャフト１４は軸受１５を介してポンプボディ１
６に支持され、その先端にはインペラ部１７が固設され
る。Reference numeral 14 denotes a rotating shaft of the water pump P, which is connected on the same axis as the rotating shaft 3 of the viscous fluid coupling C, and similarly receives the driving force of the engine. This water pump P
The rotating shaft 14 is connected to the pump body 1 via a bearing 15.
6, and an impeller part 17 is fixedly installed at the tip thereof.
上記粘性流体継手装置の回転シャフト３とウォータポン
プの回転シャフト１４の中心には貫通孔が形成され、該
貫通孔に第１０ンド１８と第２０ソド１９が連結されて
回動可能に挿入され、第１０ンド１８の先端にはバルブ
プレート２０が固設される一方、第２０ソド１９の先端
には渦状バイメタル２１の内端が固定され、その外端は
インペラ部１７に固定される。渦状バイメタル２１ばイ
ンペラ部１７に固設されたカバーｊ９により覆わレル。A through hole is formed in the center of the rotating shaft 3 of the viscous fluid coupling device and the rotating shaft 14 of the water pump, and a tenth rod 18 and a twentieth rod 19 are connected and rotatably inserted into the through hole, A valve plate 20 is fixed to the tip of the tenth rod 18, while an inner end of a spiral bimetal 21 is fixed to the tip of the twentieth rod 19, and an outer end thereof is fixed to the impeller section 17. The spiral bimetal 21 is covered by a cover J9 fixed to the impeller part 17.
次にその作動につき説明すると、冷間作動時にはポンプ
Ｐ内の水温が低く、バルブプレー１・２０は戻し穴６を
閉塞しており、粘性流体はロタ中央の貯蔵室５内に貯蔵
された状態にある。Next, to explain its operation, during cold operation, the water temperature inside the pump P is low, the valve plates 1 and 20 close the return hole 6, and the viscous fluid is stored in the storage chamber 5 in the center of the rotor. It is in.
いま、水温が徐々に上昇し、バイメタル２１が水温を感
知し、その上昇分回転すると、第１及び第２０ンド１．
８．１９を介してバルブプレー１−２０も回転し、バイ
メタル２１の回転量に応じて戻し穴６を開く。このとき
、前記貯蔵室５内の粘性流体には遠心力が働き、戻し穴
６からロータ１の後部とハウジング】２の間に形成され
る作動室２３内へと流入し、ロータ１からの回転力をハ
ウジング３へと伝え、ファンＦの回転数を上界させる。Now, when the water temperature is gradually rising and the bimetal 21 senses the water temperature and rotates by the amount of the rise, the first and 20th nodes 1.
8.19, the valve plate 1-20 also rotates, and the return hole 6 is opened according to the amount of rotation of the bimetal 21. At this time, centrifugal force acts on the viscous fluid in the storage chamber 5, which flows from the return hole 6 into the working chamber 23 formed between the rear part of the rotor 1 and the housing 2, and the rotation from the rotor 1. The force is transmitted to the housing 3 and the rotational speed of the fan F is upper bound.
この場合、例えば第３図（ａｌ〜（Ｃ１に示す如く前記
戻し穴６とバルブプレー１・２０をその形状及び穴数が
適当に組合わせられる。このとき、ブリ２の回転数（シ
ャフト１８及びロータ１の回転数）に対するファンＦの
回転数（ハウジング１２の回転数）、即ち入力回転数に
対する出力回転数は第４図ｔａ＋〜（Ｃ１に示ず如き特
性を示す。In this case, for example, the return hole 6 and the valve plates 1 and 20 are appropriately combined in shape and number of holes as shown in FIGS. The rotational speed of the fan F (rotational speed of the housing 12) relative to the rotational speed of the rotor 1 (rotational speed of the rotor 1), that is, the output rotational speed relative to the input rotational speed exhibits characteristics as shown in FIG.
作動室２３内へ流入した粘性流体はロータ１の外周に形
成された歯切り部１１のポンプ作用により継手Ｃ内を前
方（図面左方）に送られ、ロータ１の環状貯蔵室４の前
面に突設された突起１０によるポンプ作用を受けてポン
プ孔８より通路８ａを経てロータ中央の貯蔵室５内に戻
される。The viscous fluid that has flowed into the working chamber 23 is sent forward (to the left in the drawing) through the joint C by the pumping action of the gear cut 11 formed on the outer periphery of the rotor 1, and is sent to the front of the annular storage chamber 4 of the rotor 1. Under the pump action of the protrusion 10, it is returned from the pump hole 8 through the passage 8a into the storage chamber 5 at the center of the rotor.
こうして粘性流体は貯蔵室５−作動室２３−・歯切り部
１１−突起１０−・ポンプ孔８−＝ｉＪｌ路８ａ−貯蔵
室５と循環し乍ら、入力側より出力側に回転力を伝達し
続ける。In this way, the viscous fluid circulates between the storage chamber 5 - working chamber 23 - gear cutter 11 - protrusion 10 - pump hole 8 - = iJl path 8a - storage chamber 5, while transmitting rotational force from the input side to the output side. Continue to do so.
次に、ウォータポンプＰ内の水温が下降すると、バイメ
タル２１が巻き戻り、各ロンド１．８，１．９を介して
バルブプレーｊ・２０を回転させて戻し穴６を閉し、粘
性流体の作動室２３内への流入が断たれてファンＦの回
転数は下降し、粘性流体は］ ］
０−タ中央の貯蔵室５内へ回収される。Next, when the water temperature inside the water pump P decreases, the bimetal 21 rewinds, rotates the valve plate j and 20 via each iron 1.8 and 1.9, closes the return hole 6, and removes the viscous fluid. The flow into the working chamber 23 is cut off, the rotational speed of the fan F decreases, and the viscous fluid is collected into the storage chamber 5 at the center of the 0-taper.
エンジンが停止し、ウォータポンプＰ及び粘性流体継手
Ｃの回転が停止すると、粘性流体は継手Ｃ内の下方に重
力によって溜まる。このとき、粘性流体はロータ１の環
状貯蔵室４の下方部分に形成されたポンプ孔７から環状
の貯蔵室４内に侵入して貯蔵され、停止時に粘性流体が
作動室２３内へ侵入する量を少なくする。従って、これ
によりエンジンの再始動によるつれ回りを低減させるこ
とができ、エンジンの暖機性の向上とファン騒音の低減
が図れる。When the engine stops and the water pump P and viscous fluid joint C stop rotating, the viscous fluid accumulates in the lower part of the joint C due to gravity. At this time, the viscous fluid enters the annular storage chamber 4 through the pump hole 7 formed in the lower part of the annular storage chamber 4 of the rotor 1 and is stored therein. Reduce. Therefore, it is possible to reduce the running speed caused by restarting the engine, thereby improving engine warm-up performance and reducing fan noise.
また、エンジン始動後には、ポンプ孔７のロータ回転方
向下流側の突起面１０ａにより、環状の貯蔵室４内に溜
まった粘性流体は該ポンプ孔７から吐出され、他方の突
起面１０ｂのポンプ作用によりポンプ孔８から通路８ａ
を抜けてロータ中央の貯蔵室５へ戻される。Further, after the engine is started, the viscous fluid accumulated in the annular storage chamber 4 is discharged from the pump hole 7 by the protrusion surface 10a on the downstream side in the rotor rotational direction, and the pump action of the other protrusion surface 10b From the pump hole 8 to the passage 8a
and is returned to the storage chamber 5 at the center of the rotor.
以−ト、詳細に説明した如く本発明によれば、温度の感
知は全てエンジンの発熱量と直接関係するウォータポン
プ内の水温によるものであり、かつ温度感応部材として
渦状バイメタルを使用するため、他の要因に影響される
ことなくエンジンの発熱温度の検出が可能となる−１−
にバルブの開度を連続して制御することが可能となり、
エンジンの発熱状態に即応させて冷却ファンの回転数を
連続的に制御できるようになった。As explained in detail above, according to the present invention, temperature sensing is entirely based on the water temperature in the water pump, which is directly related to the amount of heat generated by the engine, and since a spiral bimetal is used as the temperature sensitive member, Enables detection of engine heat generation temperature without being affected by other factors -1-
It is now possible to continuously control the opening of the valve,
It is now possible to continuously control the rotation speed of the cooling fan in response to the heat generation state of the engine.
また本発明によれば、制御系の各部材（バイメタル、バ
ルブプレート、貯蔵室、ポンプ機構）が全て出力側に組
込むことを可能にし、かつ構造が簡単であるため、その
組付けが容易で、同時に各部作動の信顛性が増加する。Further, according to the present invention, all the components of the control system (bimetal, valve plate, storage chamber, pump mechanism) can be assembled on the output side, and the structure is simple, so assembly is easy. At the same time, the reliability of each part's operation increases.
更に、本発明では停止時のために貯蔵室と、作動時の貯
蔵室とを分けて設けると共に、それぞれにポンプ機能を
付加させることができるため、装置の始動特性が一段と
改善される。Further, according to the present invention, a storage chamber for stopping and a storage chamber for operating are provided separately, and a pump function can be added to each, so that the starting characteristics of the device are further improved.
第１図は本発明の代表的な実施例を示す粘性流体継手装
置の側断面図、第２図は同装置のロータ正面図、第３図
はロータ上の戻し穴の変形例とバルブプレートの相対位
置を示す正面図、第４図は同変形例に対応するエンジン
冷却水温に対するファン回転数の出力特性図、第５図は
従来のエンジン冷却水温検出機能を備えた粘性流体継手
装置の側断面図である。
図の主要部分の説明
１〜ローク ４，５−貯蔵室
６−戻し穴 ７．８−ポンプ孔１２−ハウジン
グ １６−ボンプボデイ１７− インペラ部
１．８，１．９− 口・２ド２０− バルブプレー１・
２１−（渦状）バイメタル２３−作動室
ρＰ−７）日留め
ロトｌ）囲蓄靜Fig. 1 is a side sectional view of a viscous fluid coupling device showing a typical embodiment of the present invention, Fig. 2 is a front view of the rotor of the same device, and Fig. 3 is a modification of the return hole on the rotor and the valve plate. A front view showing the relative positions, Fig. 4 is an output characteristic diagram of fan rotation speed versus engine cooling water temperature corresponding to the same modification, and Fig. 5 is a side cross section of a conventional viscous fluid coupling device with an engine cooling water temperature detection function. It is a diagram. Explanation of main parts of the diagram 1 - Roke 4, 5 - Storage chamber 6 - Return hole 7.8 - Pump hole 12 - Housing 16 - Bump body 17 - Impeller part
1.8, 1.9- mouth/2 de 20- valve play 1/
21-(vortex) bimetal 23-actuating chamber ρP-7) day retainer l) enclosure
Claims (1)
材と、該入力部材を囲み、該入力部材に回転自在に支承
される出力部材と、前記入力部材と前記出力部材間に形
成され粘性流体が循環する貯蔵室及び作動室と、温度変
化に応じて開度を変え前記貯蔵室から作動室に流れる流
体量を制御するバルブとからなり、温度変化に対応して
前記入力部材から前記出力部材へのトルク伝達を制御す
る粘性流体継手装置において、ウォータポンプの渦室内
に渦巻状バイメタルを取付け、該バイメタルの動きに連
動させて上記バルブの開度を連続的に制御することを特
徴とする粘性流体継手装置。an input member that is driven by an engine and has a rotor at its end; an output member that surrounds the input member and is rotatably supported by the input member; and a viscous fluid that is formed between the input member and the output member and circulates therein. A valve that controls the amount of fluid flowing from the storage chamber to the working chamber by changing its opening degree in response to temperature changes, and a valve that controls the amount of fluid flowing from the input member to the output member in response to temperature changes. A viscous fluid coupling device for controlling torque transmission, characterized in that a spiral bimetal is installed in a vortex chamber of a water pump, and the opening degree of the valve is continuously controlled in conjunction with the movement of the bimetal. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24665588A JPH0293126A (en) | 1988-09-30 | 1988-09-30 | Viscous fluid joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24665588A JPH0293126A (en) | 1988-09-30 | 1988-09-30 | Viscous fluid joint device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0293126A true JPH0293126A (en) | 1990-04-03 |
Family
ID=17151648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24665588A Pending JPH0293126A (en) | 1988-09-30 | 1988-09-30 | Viscous fluid joint device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0293126A (en) |
-
1988
- 1988-09-30 JP JP24665588A patent/JPH0293126A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR920001660B1 (en) | Thermo sensitive hydraulic fan coupling | |
| EP0009959B1 (en) | Viscous fluid clutch | |
| JP4410530B2 (en) | Electronically controlled viscous fan drive | |
| US4727969A (en) | Viscous fluid coupling | |
| JP2775431B2 (en) | Temperature-sensitive hydraulic fan coupling device | |
| EP2049811B1 (en) | Viscous fan drive systems having fill and scavenge control | |
| US6669439B2 (en) | Variable flow impeller-type water pump with movable shroud | |
| JPH0159451B2 (en) | ||
| JPH0355698B2 (en) | ||
| JPH0356328B2 (en) | ||
| US4555004A (en) | Temperature responsive fluid coupling device | |
| US5101950A (en) | Fluid coupling device with improved dump time | |
| US5484045A (en) | Fluid clutch | |
| US5117955A (en) | Temperature-controlled fluid friction coupling | |
| JPH0293126A (en) | Viscous fluid joint device | |
| JP2003014002A (en) | Temperature sensitive fluid type fan coupling device | |
| JPH03103625A (en) | Preloaded control arm for viscous fluid clutch | |
| JP3713796B2 (en) | Viscous fluid coupling | |
| JPH0229227Y2 (en) | ||
| JPS63180726A (en) | Fan coupling device for internal combustion engine | |
| JPH0615142Y2 (en) | Liquid coupling device | |
| US5509516A (en) | Viscous fluid coupling | |
| JPS6179032A (en) | Viscous fluid coupling device | |
| JPS62224734A (en) | Viscous fluid coupling | |
| JPH0379572B2 (en) |