JPH0210255Y2 - - Google Patents
Info
- Publication number
- JPH0210255Y2 JPH0210255Y2 JP1984006285U JP628584U JPH0210255Y2 JP H0210255 Y2 JPH0210255 Y2 JP H0210255Y2 JP 1984006285 U JP1984006285 U JP 1984006285U JP 628584 U JP628584 U JP 628584U JP H0210255 Y2 JPH0210255 Y2 JP H0210255Y2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- gear
- fixed
- driven
- planetary gear
- 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.)
- Expired
Links
- 238000001816 cooling Methods 0.000 claims description 43
- 239000000498 cooling water Substances 0.000 claims description 24
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 230000000452 restraining effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Transmission Devices (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
この考案は、内燃機関の冷却装置における冷却
水ポンプ及び冷却用フアンの駆動手段に関するも
のである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a driving means for a cooling water pump and a cooling fan in a cooling system for an internal combustion engine.
［従来の技術］
第１図は車両や建設機械等に使用される従来の
水冷式内燃機関の冷却装置の一例を示す。冷却用
フアン４と被動プーリ２と被動軸５ｄと冷却水ポ
ンプの扇車６とは互いに固着されている。被動プ
ーリ２はベルト３を介してクランク軸１ａに設け
られたクランク軸プーリ１によつて駆動される。[Prior Art] FIG. 1 shows an example of a conventional cooling system for a water-cooled internal combustion engine used in vehicles, construction machinery, and the like. The cooling fan 4, the driven pulley 2, the driven shaft 5d, and the fan wheel 6 of the cooling water pump are fixed to each other. The driven pulley 2 is driven via a belt 3 by a crankshaft pulley 1 provided on the crankshaft 1a.
従来の冷却装置はこのような構成であるので、
クランク軸プーリ１と被動プーリ２との直径の比
によつて決まる変速比により冷却水ポンプ６も冷
却用フアン４も同一回転速度で回転する。 Conventional cooling equipment has this configuration, so
The cooling water pump 6 and the cooling fan 4 rotate at the same rotational speed due to the gear ratio determined by the ratio of the diameters of the crankshaft pulley 1 and the driven pulley 2.
しかし、特性、騒音等の点で、冷却用フアンは
比較的低速で回転させたいため、第２図に示す冷
却装置を考案した。これは、被動プーリ２の軸に
冷却用フアン４及び遊星歯車装置のキヤリア５ａ
を固着し、固定した内歯車５ｂに歯合する遊星歯
車５ｅに歯合する太陽歯車５ｃの軸５ｄに冷却水
ポンプ６を固着したものであり冷却用フアン４は
冷却水ポンプ６より低速で回転する。 However, in terms of characteristics, noise, etc., it is desirable to rotate the cooling fan at a relatively low speed, so we devised a cooling device as shown in FIG. 2. This includes a cooling fan 4 and a carrier 5a of a planetary gear device on the shaft of the driven pulley 2.
A cooling water pump 6 is fixed to a shaft 5d of a sun gear 5c which meshes with a planetary gear 5e which meshes with a fixed internal gear 5b.The cooling fan 4 rotates at a lower speed than the cooling water pump 6. do.
実公昭56−42415号公報には、被動プーリにフ
アン及び遊星歯車装置の内歯車を固着し、固定の
キヤリアに支持される遊星歯車を介して太陽歯車
を駆動し、太陽歯車の軸に固着された冷却水ポン
プを駆動するものが開示されている。フアンは冷
却水ポンプより低速で回転し、フアンの効率向上
と騒音防止が図られている。 Japanese Utility Model Publication No. 56-42415 discloses a system in which a fan and an internal gear of a planetary gear device are fixed to a driven pulley, a sun gear is driven via a planetary gear supported by a fixed carrier, and the sun gear is fixed to the shaft of the sun gear. A system for driving a cooling water pump is disclosed. The fan rotates at a slower speed than the cooling water pump, improving fan efficiency and reducing noise.
［考案が解決しようとする課題］
従来の内燃機関の冷却装置は以上のようで、冷
却用フアンの回転速度を比較的低く設定すること
は遊星歯車装置により可能であるが、例えば、冷
却水温度が低く冷却用フアンの回転が不要である
ときでも冷却用フアンは回転するので、なお騒音
の発生や無駄なエネルギー消費はある。[Problems to be solved by the invention] Conventional internal combustion engine cooling systems are as described above, and although it is possible to set the rotation speed of the cooling fan relatively low by using a planetary gear system, for example, it is possible to set the rotation speed of the cooling fan relatively low. Since the cooling fan rotates even when the cooling fan does not need to rotate due to low cooling, noise is still generated and energy is wasted.
この考案はこのような課題を解消するためにな
されたもので、冷却用フアンの回転速度を比較的
低くするとともに、冷却水温度が低いときなどに
は冷却用フアンは駆動されないようにすることを
可能とし、さらに騒音の低下と省エネルギーを図
つた冷却装置を得ることを目的とする。 This idea was made to solve these problems, and in addition to making the rotation speed of the cooling fan relatively low, the cooling fan is not driven when the cooling water temperature is low. The purpose of the present invention is to obtain a cooling device that can reduce noise and save energy.
［課題を解決するための手段］
この考案に係る内燃機関の冷却装置は、被動軸
に冷却水ポンプ及び遊星歯車機構の太陽歯車を固
着し、この太陽歯車に歯合する遊星歯車を支持す
るキヤリアに冷却用フアンを固着し、前記遊星歯
車に歯合する内歯車の回転を拘束・開放する拘束
手段を設けたものである。[Means for Solving the Problems] A cooling device for an internal combustion engine according to this invention has a cooling water pump and a sun gear of a planetary gear mechanism fixed to a driven shaft, and a carrier that supports a planetary gear that meshes with the sun gear. A cooling fan is fixed to the inner gear, and a restraining means is provided for restraining and releasing the rotation of the internal gear meshing with the planetary gear.
［作用］
この考案における冷却水ポンプは被動軸に固着
され被動軸と共に回転する。また、この被動軸は
遊星歯車機構の太陽歯車を駆動し、太陽歯車は遊
星歯車に歯合し、遊星歯車は内歯車に歯合し、遊
星歯車を支持するキヤリアに冷却用フアンが固着
されているので、内歯車の回転を拘束手段で拘束
すれば、遊星歯車の公転によるキヤリアの回転に
より冷却用フアンは冷却水ポンプより低速で回転
駆動される。拘束手段が拘束を開放すれば、内歯
車は自由に回転することができるので、冷却用フ
アンには回転駆動力は伝達されない。[Operation] The cooling water pump in this invention is fixed to the driven shaft and rotates together with the driven shaft. In addition, this driven shaft drives the sun gear of the planetary gear mechanism, the sun gear meshes with the planet gear, the planet gear meshes with the internal gear, and a cooling fan is fixed to the carrier that supports the planet gear. Therefore, if the rotation of the internal gear is restrained by the restraint means, the cooling fan is driven to rotate at a lower speed than the cooling water pump due to the rotation of the carrier due to the revolution of the planetary gear. If the restraint means releases the restraint, the internal gear can rotate freely, so no rotational driving force is transmitted to the cooling fan.
［実施例］
以下この考案の一実施例を図について説明す
る。第３図はこの考案の一実施例による冷却装置
の側面断面図である。図において、１はクランク
軸プーリ、１ａはクランク軸、２は被動プーリ、
３はベルト、４は冷却用フアン、５ａはキヤリ
ア、５ｂは内歯車、５ｃは太陽歯車、５ｄは被動
軸、５ｅは遊星歯車、６は冷却水ポンプ、９は拘
束装置である。[Example] An example of this invention will be described below with reference to the drawings. FIG. 3 is a side sectional view of a cooling device according to an embodiment of this invention. In the figure, 1 is a crankshaft pulley, 1a is a crankshaft, 2 is a driven pulley,
3 is a belt, 4 is a cooling fan, 5a is a carrier, 5b is an internal gear, 5c is a sun gear, 5d is a driven shaft, 5e is a planetary gear, 6 is a cooling water pump, and 9 is a restraining device.
エンジンのクランク軸１ａに固着されたクラン
ク軸プーリ１と被動軸５ｄに固着された被動プー
リ２との間にベルト３がかけられている。被動軸
５ｄの一方には冷却水ポンプの扇車６が固着さ
れ、他方には遊星歯車機構の太陽歯車５ｃが固着
されている。太陽歯車５ｃに歯合する遊星歯車５
ｅはキヤリア５ａに支持され、キヤリア５ａの軸
には冷却用フアン４が固着されている。内歯車５
ｂは遊星歯車５ｅに歯合する。拘束装置９は電磁
クラツチ、摩擦クラツチ等の拘束手段である。拘
束装置９の拘束・開放の作動は、例えば、エンジ
ン冷却水温度検知センサの信号を入力し設定温度
と比較する冷却水温度監視回路からの出力信号に
よつて電磁ソレノイドが作動し、低温のときは開
放状態、その他のときは拘束状態になる。内歯車
５ｂは、拘束装置９により拘束されたときは固定
となり、開放されたときは自由に回転する。 A belt 3 is placed between a crankshaft pulley 1 fixed to a crankshaft 1a of an engine and a driven pulley 2 fixed to a driven shaft 5d. A fan wheel 6 of a cooling water pump is fixed to one side of the driven shaft 5d, and a sun gear 5c of a planetary gear mechanism is fixed to the other side. Planetary gear 5 meshing with sun gear 5c
e is supported by a carrier 5a, and a cooling fan 4 is fixed to the shaft of the carrier 5a. Internal gear 5
b meshes with the planetary gear 5e. The restraining device 9 is a restraining means such as an electromagnetic clutch or a friction clutch. For example, an electromagnetic solenoid is activated by an output signal from a cooling water temperature monitoring circuit that inputs a signal from an engine cooling water temperature detection sensor and compares it with a set temperature to lock and release the restraint device 9. is in the open state, and in other cases it is in the restrained state. The internal gear 5b is fixed when restrained by the restraint device 9, and rotates freely when released.
つぎに、第３図により作用を説明する。エンジ
ンが回転すると、クランク軸１ａ、クランク軸プ
ーリ１、ベルト３、被動プーリ２、被動軸５ｄを
介して冷却水ポンプ６及び遊星歯車機構の太陽歯
車５ｃが回転駆動される。回転速度はプーリ１，
２の直径比によつて設定することができる。内歯
車５ｂが固定のときは遊星歯車５ａは自転しなが
ら太陽歯車５ｃの回りを公転し、キヤリア５ａを
回転させ、キヤリア５に結合されている冷却用フ
アン４を回転させる。内歯車５ｂが自由のときは
太陽歯車５ｃは遊星歯車５ｅを自転させるが、内
歯車５ｂが自由に回転可能であるため、キヤリア
５ａも自由となり駆動力は伝達されない。なお、
駆動時においては、冷却水ポンプ６と冷却用フア
ン４との回転比は、内歯車５ｂの歯数＋太陽歯車
５ｃの歯数と太陽歯車５ｃの歯数との比となる。 Next, the operation will be explained with reference to FIG. When the engine rotates, the cooling water pump 6 and the sun gear 5c of the planetary gear mechanism are rotationally driven via the crankshaft 1a, crankshaft pulley 1, belt 3, driven pulley 2, and driven shaft 5d. The rotation speed is pulley 1,
It can be set by a diameter ratio of 2. When the internal gear 5b is fixed, the planetary gear 5a revolves around the sun gear 5c while rotating, rotates the carrier 5a, and rotates the cooling fan 4 coupled to the carrier 5. When the internal gear 5b is free, the sun gear 5c causes the planetary gear 5e to rotate, but since the internal gear 5b is freely rotatable, the carrier 5a is also free and no driving force is transmitted. In addition,
During driving, the rotation ratio between the cooling water pump 6 and the cooling fan 4 is the ratio of the number of teeth of the internal gear 5b, the number of teeth of the sun gear 5c, and the number of teeth of the sun gear 5c.
第３図に示す実施例は、冷却用フアン４をキヤ
リア５ａに固着し、内歯車５ｂの回転を拘束・開
放するように拘束手段９を設けたが、冷却用フア
ン４を内歯車５ｂに固着し、キヤリア５ａの回転
を拘束、開放するように拘束手段９を設けてもよ
く、キヤリア５ａの回転を拘束、開放するように
拘束手段９を設けてもよく、キヤリア５ａの回転
を拘束・開放することにより、内歯車５ｂに固着
した冷却用フアン４を、冷却水温度が高いときは
回転駆動し、冷却水温度が低いときはフリーにす
ることができる。 In the embodiment shown in FIG. 3, the cooling fan 4 is fixed to the carrier 5a, and a restraining means 9 is provided to restrain and release the rotation of the internal gear 5b, but the cooling fan 4 is fixed to the internal gear 5b. However, a restraint means 9 may be provided to restrain and release the rotation of the carrier 5a, and a restraint means 9 may be provided to restrain and release the rotation of the carrier 5a. By doing so, the cooling fan 4 fixed to the internal gear 5b can be rotated when the cooling water temperature is high, and can be made free when the cooling water temperature is low.
第４図に示す遊星歯車機構の種々の使用状態に
対する回転比を以下に記す。Ｎは回転数、Ｚは歯
車の歯数、Ａはキヤリア、Ｂは内歯車、Ｃは太陽
歯車を表す。 The rotation ratios for various usage conditions of the planetary gear mechanism shown in FIG. 4 are described below. N is the rotation speed, Z is the number of gear teeth, A is the carrier, B is the internal gear, and C is the sun gear.
(ア) 固定Ｂ 駆動Ａ 被動Ｃ
NA：NC＝ZC：（ZC＋ZB）
(イ) 固定Ｃ 駆動Ａ 被動Ｂ
NA：NB＝ZB：（ZB＋ZC）
(ウ) 固定Ｂ 駆動Ｃ 被動Ａ
NC：NA＝（ZB＋ZC）：ZC
(エ) 固定Ｃ 駆動Ｂ 被動Ａ
NB：NA＝（ZB＋ZC）：ZB
(オ) 固定Ａ 駆動Ｂ 被動Ｃ
−NB：NC＝ZC：ZB
(カ) 固定Ａ 駆動Ｃ 被動Ｂ
−NC：NB＝ZB：ZC
第３図は第４図ウの態様であり、上記その他の
態様を採用することによつて、遊星歯車の所望の
構成及び変速比を選択することができる。(A) Fixed B Driving A Driven C NA: NC = ZC: (ZC + ZB) (B) Fixed C Driving A Driven B NA: NB = ZB: (ZB + ZC) (C) Fixed B Driving C Driven A NC: NA = ( ZB+ZC):ZC (d) Fixed C Drive B Driven A NB:NA=(ZB+ZC):ZB (E) Fixed A Drive B Driven C -NB:NC=ZC:ZB (F) Fixed A Drive C Driven B -NC :NB=ZB:ZC FIG. 3 shows the embodiment of FIG. 4C, and by employing the other embodiments described above, a desired configuration and speed ratio of the planetary gear can be selected.
［考案の効果］
以上のように、この考案によれば、冷却用フア
ンの回転を比較的低速に設定できるとともに、冷
却水温度が低いときなどには、拘束手段を開放し
て冷却用フアンの駆動を止めることにより、さら
に騒音低下と省エネルギーの効果を得ることがで
きる。[Effects of the invention] As described above, according to this invention, the rotation speed of the cooling fan can be set to a relatively low speed, and when the cooling water temperature is low, the restraint means can be released to rotate the cooling fan. By stopping the drive, it is possible to further reduce noise and save energy.
第１図は従来の冷却装置の説明図、第２図は遊
星歯車装置を用いた冷却装置の説明図、第３図は
この考案による冷却装置の実施例の説明図、第４
図は遊星歯車装置の使用態様の説明図である。
図において、１はクランク軸プーリ、２は被動
プーリ、３はベルト、４は冷却用フアン、５ａは
キヤリア、５ｂは内歯車、５ｃは太陽歯車、５ｄ
は被動軸、５ｅは遊星歯車、６は冷却水ポンプ、
９は拘束装置である。
FIG. 1 is an explanatory diagram of a conventional cooling device, FIG. 2 is an explanatory diagram of a cooling device using a planetary gear system, FIG. 3 is an explanatory diagram of an embodiment of the cooling device according to this invention, and FIG.
The figure is an explanatory diagram of how the planetary gear device is used. In the figure, 1 is a crankshaft pulley, 2 is a driven pulley, 3 is a belt, 4 is a cooling fan, 5a is a carrier, 5b is an internal gear, 5c is a sun gear, and 5d
is the driven shaft, 5e is the planetary gear, 6 is the cooling water pump,
9 is a restraint device.
Claims (1)
つて駆動される被動軸によつて駆動される冷却
水ポンプ及び冷却用フアンを有する内燃機関の
冷却装置において、前記被動軸に前記冷却水ポ
ンプ及び遊星歯車機構の太陽歯車を固着し、こ
の太陽歯車に歯合する遊星歯車を支持するキヤ
リアに冷却用フアンを固着し、前記遊星歯車に
歯合する内歯車の回転を拘束・開放する拘束手
段を設けたことを特徴とする内燃機関の冷却装
置。 (2) 前記拘束手段は、冷却水温度検知センサから
の信号を設定温度と比較する電気回路の出力信
号によつて作動する拘束手段である実用新案登
録請求の範囲(1)記載の内燃機関の冷却装置。[Claims for Utility Model Registration] (1) A cooling device for an internal combustion engine having a cooling water pump and a cooling fan driven by a driven shaft driven by transmitting the rotation of a crankshaft, The cooling water pump and the sun gear of the planetary gear mechanism are fixed to the driven shaft, a cooling fan is fixed to the carrier that supports the planetary gear that meshes with the sun gear, and the internal gear that meshes with the planetary gear rotates. 1. A cooling device for an internal combustion engine, comprising a restraint means for restraining and releasing the engine. (2) The internal combustion engine according to claim (1), wherein the restraint means is a restraint means operated by an output signal of an electric circuit that compares a signal from a cooling water temperature detection sensor with a set temperature. Cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984006285U JPS60120224U (en) | 1984-01-23 | 1984-01-23 | Internal combustion engine cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984006285U JPS60120224U (en) | 1984-01-23 | 1984-01-23 | Internal combustion engine cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60120224U JPS60120224U (en) | 1985-08-14 |
| JPH0210255Y2 true JPH0210255Y2 (en) | 1990-03-14 |
Family
ID=30483586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984006285U Granted JPS60120224U (en) | 1984-01-23 | 1984-01-23 | Internal combustion engine cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60120224U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009197583A (en) * | 2008-02-19 | 2009-09-03 | Honda Motor Co Ltd | Internal combustion engine provided with transmission device for driving auxiliary machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5642415U (en) * | 1979-09-08 | 1981-04-18 |
-
1984
- 1984-01-23 JP JP1984006285U patent/JPS60120224U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5642415U (en) * | 1979-09-08 | 1981-04-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60120224U (en) | 1985-08-14 |
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