JPH1163023A - Viscous fluid joint device - Google Patents

Viscous fluid joint device

Info

Publication number
JPH1163023A
JPH1163023A JP23281197A JP23281197A JPH1163023A JP H1163023 A JPH1163023 A JP H1163023A JP 23281197 A JP23281197 A JP 23281197A JP 23281197 A JP23281197 A JP 23281197A JP H1163023 A JPH1163023 A JP H1163023A
Authority
JP
Japan
Prior art keywords
cooling water
viscous fluid
engine
working chamber
output member
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
Application number
JP23281197A
Other languages
Japanese (ja)
Inventor
Mitsutoshi Hagiwara
原 光 敏 萩
Seiya Tanaka
中 誠 也 田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP23281197A priority Critical patent/JPH1163023A/en
Publication of JPH1163023A publication Critical patent/JPH1163023A/en
Pending legal-status Critical Current

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  • Air-Conditioning For Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a function for taking out heat when the temperature of engine cooling water is low and to increase reliability by providing a cooling water passage for distributing cooling water, a means for supplying/discharging viscous fluids into/from a hydraulic chamber, a braking means and a cooling fan. SOLUTION: When a heater switch is ON, viscous fluids are supplied into a hydraulic chamber 19. Associatively, a brake 22 is pressed to an output member 6 by an actuator 24 to prevent the rotation of a cooling fan 5, and the viscous fluids in the hydraulic chamber 19 generate heat by shearing heat. The heat of the viscous fluids is transmitted to cooling water to be steeply raised. An engine is thereby warmed. Then, as the temperature of engine cooling water is increased, a second electric power pump 15 is started by a signal from a controller 16, the excessive temperature increase of the viscous fluids is properly cooled by cooling water distributed through cooling water passages 23a and 23b to be prevented, and no viscous reduction occurs.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、内燃機関の冷却フ
ァン制御装置に利用できる粘性流体継手装置に関し、更
に詳細にはエンジンからの動力を冷却ファンに伝達する
ための粘性流体の量を可変とすることにより冷却ファン
の回転を制御する粘性流体継手装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a viscous fluid coupling device which can be used for a cooling fan control device of an internal combustion engine, and more particularly to a variable viscous fluid for transmitting power from an engine to a cooling fan. The present invention relates to a viscous fluid coupling device that controls the rotation of a cooling fan by performing the operation.

【0002】[0002]

【従来の技術】この種の従来の粘性流体継手装置とし
て、実開平2−96035号公報に開示されるものがあ
る。この装置は、エンジンによって駆動されその上に駆
動側回転ロータを有する入力部材、該回転ロータと相対
回転可能でラビリンス溝を介して対向する被駆動側回転
ロータを有する出力部材、両回転ロータを収容する作動
室を形成するハウジング、該ハウジングに連結されると
共に作動室に連通する空気管、粘性流体を外部のリザー
バタンクから吸入する吸入管、作動室をリザーバタンク
に連通する2つの排出管、吸入管上に設けられた第1ポ
ンプ、一方の排出管に設けられた第2ポンプ及び両ポン
プを夫々エンジン冷却水温、エンジン回転数に応じて制
御する制御装置を備えている。
2. Description of the Related Art A conventional viscous fluid coupling device of this type is disclosed in Japanese Utility Model Laid-Open No. 2-96035. This device houses an input member driven by an engine and having a driving-side rotating rotor thereon, an output member having a driven-side rotating rotor that is rotatable relative to the rotating rotor and faces through a labyrinth groove, and both rotating rotors. A working chamber, an air pipe connected to the housing and communicating with the working chamber, a suction pipe for sucking viscous fluid from an external reservoir tank, two discharge pipes connecting the working chamber to the reservoir tank, suction A control device is provided for controlling the first pump provided on the pipe, the second pump provided on one of the discharge pipes, and both pumps according to the engine cooling water temperature and the engine speed, respectively.

【0003】この従来の装置においては、エンジン冷却
水温が低い時には、吸入管側の第1ポンプは作動せず、
作動室内の粘性流体は排出管より排出され、出力部材に
は入力部材からのトルク伝達は行われない。エンジン冷
却水温が上昇するにつれ、吸入管側の第1ポンプが制御
装置からの指令によって作動することにより、作動室内
には粘性流体が送入され、これが順次増加することによ
り、出力部材の回転数はリニアに増加される。また、エ
ンジンの回転数が急激に上昇した場合には、作動室内の
粘性流体は第2ポンプにより速やかに排出され、出力部
材のつれ回りが防止される。
In this conventional apparatus, when the temperature of the engine cooling water is low, the first pump on the suction pipe side does not operate,
The viscous fluid in the working chamber is discharged from the discharge pipe, and the output member does not transmit torque from the input member. As the engine cooling water temperature rises, the first pump on the suction pipe side operates according to a command from the control device, whereby a viscous fluid is fed into the working chamber, and the viscous fluid is sequentially increased, whereby the rotational speed of the output member is increased. Is increased linearly. Further, when the rotation speed of the engine is rapidly increased, the viscous fluid in the working chamber is quickly discharged by the second pump, thereby preventing the output member from rotating.

【0004】[0004]

【発明が解決しようとする課題】上記したように、従来
の粘性流体継手装置においては、冷却水温に応じて出力
部材(冷却ファン)の回転数が制御されるものの、エン
ジンの高負荷、高回転時には、両ロータ間に生じる剪断
熱により粘性流体の温度が上昇し、耐熱温度を超えるこ
とにより、粘性流体の特性が損なわれ、当該粘性流体継
手装置の性能が低下するという問題がある。
As described above, in the conventional viscous fluid coupling device, although the rotation speed of the output member (cooling fan) is controlled in accordance with the cooling water temperature, the engine has a high load and a high rotation speed. In some cases, the temperature of the viscous fluid rises due to shear heat generated between the two rotors, and the temperature of the viscous fluid exceeds the heat-resistant temperature.

【0005】また、上記した従来の粘性流体継手装置に
おいては、冷却ファンの回転を制御することによりエン
ジン冷却水の上昇を防ぐものであり、エンジン冷却水の
低温時に熱を取り出すことにより冷却水温を上昇させ車
両の暖房性能及びエンジンの暖機性を向上させるもので
はなく、これら機能を得るためには別途装置を必要とす
るため、エンジンの補機が増加し、複雑化を招くと共に
エンジンルーム内でのスペースが増大し、搭載上の制約
を招くという問題がある。
In the conventional viscous fluid coupling device described above, the engine cooling water is prevented from rising by controlling the rotation of the cooling fan, and the temperature of the cooling water is reduced by extracting heat when the engine cooling water is low. It does not raise the heating performance of the vehicle and the warming performance of the engine by raising it, but it requires additional equipment to obtain these functions. However, there is a problem in that the space in the device increases, which causes restrictions on mounting.

【0006】それゆえ、本発明は当該粘性流体継手装置
において、簡単な構成にてエンジン冷却水温の低温時に
熱を取り出し得る機能を兼ね備えさせると共に、その信
頼性を向上させることを、その課題とする。
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a viscous fluid coupling device having a function of extracting heat at a low engine cooling water temperature with a simple configuration and improving the reliability thereof. .

【0007】[0007]

【課題を解決するための手段】上記課題を解決するため
に講じた本発明の技術的手段は、当該粘性流体継手装置
を、ハウジングと、該ハウジングに回転可能に支承され
ると共に前記ハウジングに形成される作動室内に収容さ
れる駆動側回転ロータを有し、エンジンにより駆動され
る入力部材と、前記ハウジングに回転可能に支承される
と共に冷却ファンと、前記駆動側回転ロータとラビリン
ス溝を介して対向し前記作動室内に収容される被駆動側
回転ロータを有する出力部材と、前記作動室の周囲に形
成され冷却水が流通する冷却水通路と、前記作動室に冷
却水温及びエンジン回転数に応じて粘性流体を給排する
流体給排手段と、前記出力部材の回転を冷却水温及びエ
ンジン回転数に応じて制動する制動手段とを備えた構成
とすることである。
Means for Solving the Problems The technical means of the present invention taken to solve the above problems is to form the viscous fluid coupling device on a housing and rotatably supported by the housing and formed on the housing. An input member driven by an engine, a cooling fan rotatably supported by the housing, and a cooling fan, and a driving-side rotating rotor and a labyrinth groove. An output member having a driven-side rotating rotor opposed to and housed in the working chamber; a cooling water passage formed around the working chamber, through which cooling water flows; and a cooling water passage in the working chamber according to a cooling water temperature and an engine speed. Fluid supply / discharge means for supplying / discharging the viscous fluid, and braking means for braking the rotation of the output member in accordance with the cooling water temperature and the engine speed.

【0008】上記した手段によれば、冷却水温の低温時
に冷却水温を上昇させる必要がある場合には、流体給排
手段により作動室内に粘性流体が供給されると共に、制
動手段により出力部材の回転が停止される。これによ
り、作動室内の粘性流体が剪断熱により発熱し、発熱し
た熱はハウジングに形成された冷却水通路内の水に伝達
されて、冷却水が加熱される。この結果、冷却水温度が
上昇され、車両の暖房性能及びエンジンの暖機性が向上
される。
According to the above-described means, when it is necessary to increase the cooling water temperature when the cooling water temperature is low, the viscous fluid is supplied into the working chamber by the fluid supply / discharge means, and the rotation of the output member is controlled by the braking means. Is stopped. As a result, the viscous fluid in the working chamber generates heat due to shear heat insulation, and the generated heat is transmitted to water in a cooling water passage formed in the housing, and the cooling water is heated. As a result, the temperature of the cooling water is increased, and the heating performance of the vehicle and the warmability of the engine are improved.

【0009】冷却水温を上昇させる必要がない時には、
冷却水温の上昇に応じて作動室内に粘性流体が流体給排
手段により供給され、出力部材及び冷却ファンの回転数
がリニアに増加される。この時、粘性流体の温度上昇は
冷却水通路を流通する冷却水
When it is not necessary to raise the cooling water temperature,
The viscous fluid is supplied into the working chamber by the fluid supply / discharge means in response to the rise of the cooling water temperature, and the rotation speed of the output member and the cooling fan is linearly increased. At this time, the temperature rise of the viscous fluid is caused by the cooling water flowing through the cooling water passage.

【0010】により適切に防止される。[0010] Thus, it is appropriately prevented.

【発明の実施の形態】以下、本発明に従った粘性流体継
手装置の一実施形態を図面に基づき、説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a viscous fluid coupling device according to the present invention will be described below with reference to the drawings.

【0011】図1において、1はエンジンによって駆動
され、第1ハウジング8に軸受18を介して可能可能に
支承される入力部材2上に固設された駆動側回転ロータ
で、該駆動側回転ロータ1の一側にはラビリンス溝が形
成されている。第1ハウジング8には、第2ハウジング
7が固定されている。第2ハウジング7には出力部材6
が軸受17を介して回転可能に支承されており、該出力
部材6の入力部材2側一端の外周上には駆動側回転ロー
タ1のラビリンス溝に対向するラビリンス溝が形成さ
れ、両溝により周知のラビリンス機構4を構成する被駆
動側回転ロータ3が固設されている。出力部材6の他端
側外周には冷却ファン5が固設されている。
In FIG. 1, reference numeral 1 denotes a drive-side rotating rotor fixed on an input member 2 which is driven by an engine and is supported by a first housing 8 via a bearing 18 as much as possible. A labyrinth groove is formed on one side of 1. The second housing 7 is fixed to the first housing 8. The output member 6 is provided in the second housing 7.
Is rotatably supported via a bearing 17, and a labyrinth groove facing the labyrinth groove of the drive-side rotary rotor 1 is formed on the outer periphery of one end of the output member 6 on the input member 2 side, and is well known by both grooves. The driven-side rotating rotor 3 constituting the labyrinth mechanism 4 is fixedly provided. A cooling fan 5 is fixedly mounted on the outer periphery of the other end of the output member 6.

【0012】両ロータ1、3は、両ハウジング7、8間
に形成される作動室19内に収容されている。第1ハウ
ジング8には、作動室19から隔離された円環状の空洞
により形成される冷却水通路23aが形成されており、
該冷却水通路23aには冷却水入口20a及び冷却水出
口21aが形成されており、冷却水が流通するようにな
っている。また、第2ハウジング7にも、同様に、作動
室19から隔離された円環状の空洞により形成される冷
却水通路23bが形成されており、該冷却水通路23b
には冷却水入口20b及び冷却水出口21bが形成され
ており、冷却水が流通するようになっている。
The rotors 1, 3 are accommodated in a working chamber 19 formed between the housings 7, 8. In the first housing 8, a cooling water passage 23a formed by an annular cavity isolated from the working chamber 19 is formed.
A cooling water inlet 20a and a cooling water outlet 21a are formed in the cooling water passage 23a so that the cooling water flows. Similarly, in the second housing 7, a cooling water passage 23b formed by an annular cavity isolated from the working chamber 19 is formed.
Is formed with a cooling water inlet 20b and a cooling water outlet 21b, so that the cooling water flows.

【0013】第2ハウジング7には、第1電動ポンプ1
3が介装される排出管10’の一端と作動室19とを連
通する連通管10と、第2電動ポンプ15が介装される
吸入管11’の一端と作動室19とを連通する連通管1
1が設けられている。尚、排出管10’及び吸入管1
1’の他端は、リザーバタンク14に連通されている。
第1ハウジング8には、作動室19とリザーバタンク1
4とを連通する排出管9’が接続される連通管9と、作
動室19内を常時大気圧に保持するために作動室19を
大気と連通する空気管12が設けられている。 22
は、アクチュエータ24により出力部材6に押圧されて
出力部材6の回転を制動するブレーキである。また、1
6は、第1電動ポンプ13及び第2電動ポンプ15、ア
クチュエータ24をエンジン冷却水温、エンジン回転数
及びヒータースイッチに応じて制御する制御装置であ
る。
The second housing 7 has a first electric pump 1
The communication pipe 10 communicates one end of a discharge pipe 10 ′ with the third electric pump 15 and the working chamber 19, and the communication pipe communicates one end of a suction pipe 11 ′ with a second electric pump 15 with the working chamber 19. Tube 1
1 is provided. The discharge pipe 10 'and the suction pipe 1
The other end of 1 ′ is connected to the reservoir tank.
The first housing 8 includes an operating chamber 19 and a reservoir tank 1.
There is provided a communication pipe 9 to which a discharge pipe 9 'communicating with the pressure chamber 4 is connected, and an air pipe 12 for communicating the working chamber 19 with the atmosphere in order to always keep the inside of the working chamber 19 at atmospheric pressure. 22
Is a brake that is pressed by the output member 6 by the actuator 24 to brake the rotation of the output member 6. Also, 1
Reference numeral 6 denotes a control device that controls the first electric pump 13, the second electric pump 15, and the actuator 24 according to the engine coolant temperature, the engine speed, and the heater switch.

【0014】上記した構成から粘性流体継手装置におい
て、エンジン冷却水温が低く、ヒータースイッチがオン
の時には、制御装置16により第2電動ポンプ15が作
動されると共にアクチュエータ24が作動される。これ
により、リザーバタンク14から粘性流体が吸い上げら
れて、吸入管11’、連通管11を介して作動室19内
に粘性流体が送入される。これと共に、アクチュエータ
24によりブレーキ22が出力部材6に押圧されて、出
力部材6の回転、即ち、冷却ファン5の回転が阻止され
る。この結果、入力部材2の回転トルクが粘性流体を介
して出力部材6に伝達されることなく、作動室19内の
粘性流体が剪断熱により発熱する。この粘性流体の熱
は、冷却水通路23a、23b内の冷却水に伝達され、
冷却水温を急速に上昇させる。この結果、車両の暖房性
能が向上されると共に、エンジンの暖機性が向上され
る。
With the above configuration, in the viscous fluid coupling device, when the temperature of the engine cooling water is low and the heater switch is on, the controller 16 operates the second electric pump 15 and the actuator 24. Thereby, the viscous fluid is sucked up from the reservoir tank 14, and is sent into the working chamber 19 through the suction pipe 11 'and the communication pipe 11. At the same time, the brake 22 is pressed against the output member 6 by the actuator 24, and the rotation of the output member 6, ie, the rotation of the cooling fan 5, is prevented. As a result, the rotational torque of the input member 2 is not transmitted to the output member 6 via the viscous fluid, and the viscous fluid in the working chamber 19 generates heat due to shear heat insulation. The heat of the viscous fluid is transmitted to the cooling water in the cooling water passages 23a and 23b,
Increase the cooling water temperature rapidly. As a result, the heating performance of the vehicle is improved, and the warmability of the engine is improved.

【0015】ヒータースイッチがオフでエンジン冷却水
温が低い時は、第2電動ポンプ15は制御装置16によ
り作動されない。また、この時作動室19内の粘性流体
は、連通管9、排出管9’を介してリザーバタンク14
内に排出されているため、トルク伝達は行われず、出力
部材6は回転しない。
When the heater switch is off and the engine coolant temperature is low, the second electric pump 15 is not operated by the control device 16. At this time, the viscous fluid in the working chamber 19 is supplied to the reservoir tank 14 via the communication pipe 9 and the discharge pipe 9 ′.
Therefore, the torque is not transmitted, and the output member 6 does not rotate.

【0016】次いでエンジン冷却水温が上昇してくる
と、第2電動ポンプ15が制御装置16からの信号によ
って作動し、リザーバタンク14から粘性流体を吸い上
げ、吸入管11’、連通管11を介して作動室19内に
粘性流体を送入する。したがって、順次作動室19内の
粘性流体量は増加するため、エンジン冷却水温の上昇に
応じて、入力部材2からラビリンス機構4を介して伝達
される出力部材6の回転数はリニアに増加する。この
時、粘性流体の過度の温度上昇は冷却水通路23a、2
3bを流通する冷却水により適切に冷却されることによ
り防止され、粘性低下することはない。また、エンジン
回転数が急激に上昇した際には、制御装置16の信号に
より第1電動ポンプ13が作動され、作動室19内の粘
性流体を連通管10、排出管10’を介して速やかに排
出し、トルク伝達量を減少させ、出力部材6のつれ回り
の発生が防止される。
Next, when the temperature of the engine cooling water rises, the second electric pump 15 operates according to a signal from the control device 16, sucks up the viscous fluid from the reservoir tank 14, and passes through the suction pipe 11 'and the communication pipe 11. A viscous fluid is fed into the working chamber 19. Therefore, since the amount of the viscous fluid in the working chamber 19 sequentially increases, the rotation speed of the output member 6 transmitted from the input member 2 via the labyrinth mechanism 4 linearly increases in accordance with the rise of the engine cooling water temperature. At this time, the excessive temperature rise of the viscous fluid is caused by the cooling water passages 23a,
It is prevented by being appropriately cooled by the cooling water flowing through 3b, and the viscosity does not decrease. Further, when the engine speed rises rapidly, the first electric pump 13 is operated by a signal of the control device 16, and the viscous fluid in the working chamber 19 is quickly spilled through the communication pipe 10 and the discharge pipe 10 '. The output member 6 reduces the amount of torque transmitted, thereby preventing the output member 6 from twisting.

【0017】[0017]

【発明の効果】以上の如く、本発明によれば、簡単な構
成にてエンジン冷却水温の低温時に熱を取り出し得る機
能を兼ね備えさせることができると共に、冷却水通路内
を流通する冷却水により粘性流体を適切に冷却すること
ができ、粘性流体の粘性低下による粘性流体継手装置の
信頼性低下を防止することができる。
As described above, according to the present invention, it is possible to provide a function capable of extracting heat when the temperature of the engine cooling water is low with a simple structure, and to provide a viscous solution by the cooling water flowing through the cooling water passage. The fluid can be appropriately cooled, and a decrease in the reliability of the viscous fluid coupling device due to a decrease in the viscosity of the viscous fluid can be prevented.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に従った粘性流体継手装置の構成図であ
る。
FIG. 1 is a configuration diagram of a viscous fluid coupling device according to the present invention.

【符号の説明】[Explanation of symbols]

1 駆動側回転ロータ 2 入力部材 3 被駆動側回転ロータ 4 ラビリンス機構(ラビリンス溝) 5 冷却ファン 6 出力部材 7 第2ハウジング(ハウジング) 8 第1ハウジング(ハウジング) 9、10、11 連通管(流体給排手段) 9’、10’ 排出管(流体給排手段) 11’ 吸入管(流体給排手段) 13 第1電動ポンプ(流体給排手段) 15 第2電動ポンプ(流体給排手段) 16 制御装置 22 ブレーキ(制動手段) 24 アクチュエータ(制動手段) REFERENCE SIGNS LIST 1 drive-side rotating rotor 2 input member 3 driven-side rotating rotor 4 labyrinth mechanism (labyrinth groove) 5 cooling fan 6 output member 7 second housing (housing) 8 first housing (housing) 9, 10, 11 communicating pipe (fluid) 9 ', 10' Discharge pipe (fluid supply / discharge means) 11 'Suction pipe (fluid supply / discharge means) 13 First electric pump (fluid supply / discharge means) 15 Second electric pump (fluid supply / discharge means) 16 Control device 22 Brake (braking means) 24 Actuator (braking means)

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ハウジングと、該ハウジングに回転可能
に支承されると共に前記ハウジングに形成される作動室
内に収容される駆動側回転ロータを有し、エンジンによ
り駆動される入力部材と、前記ハウジングに回転可能に
支承されると共に冷却ファンと、前記駆動側回転ロータ
とラビリンス溝を介して対向し前記作動室内に収容され
る被駆動側回転ロータを有する出力部材と、前記作動室
の周囲に形成され冷却水が流通する冷却水通路と、前記
作動室に少なくとも冷却水温に応じて粘性流体を給排す
る流体給排手段と、前記出力部材の回転を少なくとも冷
却水温に応じて制動する制動手段とを備えてなる粘性流
体継手装置。
1. An input member driven by an engine, comprising: a housing; a drive-side rotating rotor rotatably supported by the housing and housed in a working chamber formed in the housing; A cooling fan, an output member having a driven-side rotating rotor that is rotatably supported and faces the driving-side rotating rotor via a labyrinth groove and is housed in the working chamber; and an output member formed around the working chamber. A cooling water passage through which cooling water flows, a fluid supply / discharge unit that supplies / discharges a viscous fluid to / from the working chamber at least according to the cooling water temperature, and a braking unit that brakes the rotation of the output member at least according to the cooling water temperature. Viscous fluid coupling device provided.
JP23281197A 1997-08-28 1997-08-28 Viscous fluid joint device Pending JPH1163023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23281197A JPH1163023A (en) 1997-08-28 1997-08-28 Viscous fluid joint device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23281197A JPH1163023A (en) 1997-08-28 1997-08-28 Viscous fluid joint device

Publications (1)

Publication Number Publication Date
JPH1163023A true JPH1163023A (en) 1999-03-05

Family

ID=16945149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23281197A Pending JPH1163023A (en) 1997-08-28 1997-08-28 Viscous fluid joint device

Country Status (1)

Country Link
JP (1) JPH1163023A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009114317A2 (en) * 2008-03-12 2009-09-17 Borgwarner Inc. Cooling system for clutch
CN103163794A (en) * 2013-03-15 2013-06-19 宝鸡石油机械有限责任公司 Interconnected control device for fan, air brake and heater

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009114317A2 (en) * 2008-03-12 2009-09-17 Borgwarner Inc. Cooling system for clutch
WO2009114317A3 (en) * 2008-03-12 2009-12-17 Borgwarner Inc. Cooling system for clutch
US8851028B2 (en) 2008-03-12 2014-10-07 Borg Warner Inc. Cooling system for clutch
CN103163794A (en) * 2013-03-15 2013-06-19 宝鸡石油机械有限责任公司 Interconnected control device for fan, air brake and heater
CN103163794B (en) * 2013-03-15 2016-03-16 宝鸡石油机械有限责任公司 Blower fan, air lock, well heater interlock control apparatus

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