JPH02120517A - Lubricant amount control circuit of wet type clutch - Google Patents
Lubricant amount control circuit of wet type clutchInfo
- Publication number
- JPH02120517A JPH02120517A JP27547088A JP27547088A JPH02120517A JP H02120517 A JPH02120517 A JP H02120517A JP 27547088 A JP27547088 A JP 27547088A JP 27547088 A JP27547088 A JP 27547088A JP H02120517 A JPH02120517 A JP H02120517A
- Authority
- JP
- Japan
- Prior art keywords
- clutch
- lubricating oil
- lubricant
- circuit
- amount
- 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
- 239000000314 lubricant Substances 0.000 title abstract 9
- 239000010687 lubricating oil Substances 0.000 claims description 57
- 238000005461 lubrication Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 9
- 230000001050 lubricating effect Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Mechanical Operated Clutches (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は、湿式クラッチの潤滑油量制御回路に係わり、
殊に自動車、産業機械、建設機械等に装着される1ソ式
クラッチへの潤滑に好適な湿式クラッチの潤滑油量制御
回路に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a lubricating oil amount control circuit for a wet clutch.
In particular, the present invention relates to a lubricating oil amount control circuit for a wet type clutch suitable for lubricating a one-socket type clutch installed in automobiles, industrial machinery, construction machinery, etc.
(従来の技術)
従来、Y!式ツクラッチ潤滑は、潤滑回路にリリーフ弁
を備えた構成、いわゆる圧力制?21潤滑方弐の構成で
ある0例えば、第6図の潤滑回路図を参照し説明すれば
、潤滑油ポンプ(図示せず)等の潤滑供給源から送られ
てきた潤滑油は主回路40に至り、リリーフ圧以上に至
らしめる潤滑油はこの主回路40に装着されたリリフ弁
41を介してドレン回路42から潤滑油溜10に落とさ
れ、他の潤滑油は潤滑回路43のオリフィス44を介し
湿式クラッチ20を潤滑した後、ドレン回路21から潤
滑油溜lOに落とされる。また他の潤滑部30を備える
場合には、その部位へもオリフィス45を介し潤滑し、
その後、同様にドレン31から潤滑油溜10に落とされ
る構成である。かかる構成における湿式クラッチの潤滑
油量は、潤滑油を最も必要とするクラッチの保合途中に
おけるその最大潤滑油量に合わせ設定されている。(Conventional technology) Conventionally, Y! Is the formula clutch lubrication system equipped with a relief valve in the lubrication circuit, so-called pressure control? For example, referring to the lubrication circuit diagram in FIG. The lubricating oil that reaches the relief pressure or higher is dropped from the drain circuit 42 into the lubricating oil reservoir 10 via the relief valve 41 installed in the main circuit 40, and the other lubricating oil is dropped into the lubricating oil reservoir 10 through the orifice 44 of the lubricating circuit 43. After lubricating the wet clutch 20, the lubricating oil is dropped from the drain circuit 21 into the lubricating oil reservoir lO. In addition, if another lubricating part 30 is provided, that part is also lubricated through the orifice 45,
Thereafter, the lubricating oil is similarly dropped into the lubricating oil reservoir 10 from the drain 31. The amount of lubricating oil in the wet clutch in such a configuration is set in accordance with the maximum amount of lubricating oil during engagement of the clutch that requires the most lubricating oil.
(発明が解決しようとする課題)
しかしながら、かかる従来の圧力制御潤滑は、湿式クラ
ッチ及び他の周辺装置における必要潤滑油量に対し、そ
の条件を満足しないという下記の不都合がある。(Problems to be Solved by the Invention) However, such conventional pressure-controlled lubrication has the following disadvantage in that it does not satisfy the requirements for the amount of lubricating oil required in the wet clutch and other peripheral devices.
(1)クラッチの保合後の潤滑油量は少なくてよい。つ
まり、クラッチ係合後は、むしろ歯車や軸受等の他の装
置へ、より多くの潤滑油を与えたほうがよい。(1) The amount of lubricating oil after engagement of the clutch may be small. In other words, after the clutch is engaged, it is better to supply more lubricating oil to other devices such as gears and bearings.
(2)クラッチの開放時の潤滑油量も少なくてよい。つ
まり、クラッチの開放時に、従来のように多量の潤滑油
がクラッチに供給されると、その潤滑油がクラッチ及び
その周辺部品の回転により撹拌されていわゆるクラッチ
空転ロスが生じてしまう。(2) The amount of lubricating oil required when the clutch is released is also small. That is, when a large amount of lubricating oil is supplied to the clutch when the clutch is released, as in the conventional case, the lubricating oil is agitated by the rotation of the clutch and its surrounding parts, resulting in so-called clutch slip loss.
本発明は、かかる従来の問題点に鑑み、都度最適潤滑油
量をクラッチに供給でき得る湿式クラッチの!A滑油回
路を提供することを目的とする。In view of these conventional problems, the present invention provides a wet clutch that can supply the optimum amount of lubricating oil to the clutch each time! The purpose is to provide an A-lubrication circuit.
(課題を解決するだめの手段)
一ト記目的を達成するため、本発明に係わるγ!式ツク
ランチ潤滑油回路は、従来にない潤滑油量制御8回路で
あって、第1図を参照して説明すれば、湿式クラッチ5
1に潤滑油を供給するに、この湿式クラッチ51の作動
圧Pを使い、潤滑油量Qを制御する構成を特徴とする湿
式クラッチの潤滑油量制御回路とした。(Means for Solving the Problem) In order to achieve the above objectives, γ! according to the present invention! The type clutch lubricating oil circuit is an unprecedented eight lubricating oil amount control circuit, and will be explained with reference to FIG.
The lubricating oil amount control circuit for a wet type clutch is characterized in that the operating pressure P of this wet type clutch 51 is used to supply lubricating oil to the lubricating oil amount Q of the wet type clutch 51 to control the amount Q of lubricating oil.
(作 用)
クラッチが開放時であるか、保合中であるか又は保合後
であるかは、Y!式ツクラッチ作動圧の大小及び時系順
で把握することができる。そこで、本発明の構成は、例
えばクラッチが開放時であれば、クラッチの作動圧Pは
一般にほぼゼロ(P=O)であり、また、クラッチが保
合中であれば、クラッチの作動圧Pは前記圧力(P=0
)とクラッチリリーフ圧Psとの間(0<P<Ps)で
あり、その後クラッチの作動圧Pがクラッチリリーフ圧
Psとなれば、クラッチが保合を完了したことを示すと
いう様に、クラッチの作動圧の大小及び時系順でクラッ
チの作動状況を把握し、そのクラッチ作動圧Pを使い、
クラッチに最適なる潤滑油fftQを提供する制御を行
うものである。(Function) Whether the clutch is disengaged, engaged, or after engagement is determined by Y! It is possible to understand the magnitude and chronological order of the clutch operating pressure. Therefore, the configuration of the present invention is such that, for example, when the clutch is disengaged, the clutch operating pressure P is generally approximately zero (P=O), and when the clutch is engaged, the clutch operating pressure P is the above pressure (P=0
) and the clutch relief pressure Ps (0<P<Ps), and if the clutch operating pressure P then reaches the clutch relief pressure Ps, it indicates that the clutch has completed engagement. Ascertain the operating status of the clutch based on the magnitude and chronological order of the operating pressure, and use that clutch operating pressure P.
Control is performed to provide the optimum lubricating oil fftQ for the clutch.
(実施例)
本発明に係わる湿式クラッチの潤滑油量制御回路の実施
例を、第1図乃至第5図を参照し、以下詳細に説明する
。第1実施例は、第1図の潤滑回路図に示す通り、従来
の技術である第6図の潤滑回路40に、本発明に係わる
潤滑油量制御回路を追設した構成であって、同図におい
C1この潤滑油量制御回路は、クラッチ51に作動油を
供給するクラッチ油圧回路50に追設した潤滑回路53
と、同じくクラッチ油圧回路50に追設したパイロット
回路54と、クラッチへの潤滑回路55と、これら3回
路53.54.55に接続される2ボ一ト3位置切替弁
なる潤滑油量制御弁52とを備えた構成の回路である0
次に第2実施例は、第2図の潤滑回路図に示す通り、こ
れも前記第1実施例と同様、従来の技術の潤滑回路40
に追設した構成であるが、前記第1実施例と異なり、こ
の潤滑油量制御回路は、クラッチ油圧回路50に追設し
たパイロット回路54と、従来の潤滑回路40に追設し
た潤滑回路46と、クラッチへの潤滑回路47と、これ
ら3回路54.46.47に接続される2ボ一ト3位置
切替弁なる潤滑油量制御弁52とを備えた構成の回路で
ある。次にかかる実施例の効果を、第3図の第1実施例
を具現化した模式クラッチの一実施例図と、第4図及び
第5図の実施例の作用図とに基づき説明する。(Embodiment) An embodiment of a lubricating oil amount control circuit for a wet clutch according to the present invention will be described in detail below with reference to FIGS. 1 to 5. As shown in the lubrication circuit diagram of FIG. 1, the first embodiment has a configuration in which a lubricating oil amount control circuit according to the present invention is added to the conventional lubrication circuit 40 of FIG. 6. In the figure C1, this lubricating oil amount control circuit is a lubricating circuit 53 that is added to the clutch hydraulic circuit 50 that supplies hydraulic oil to the clutch 51.
, a pilot circuit 54 additionally added to the clutch hydraulic circuit 50, a lubricating circuit 55 for the clutch, and a lubricating oil amount control valve, which is a two-bottom, three-position switching valve, connected to these three circuits 53, 54, and 55. 0, which is a circuit with a configuration comprising 52 and 52.
Next, as shown in the lubrication circuit diagram of FIG. 2, the second embodiment uses a conventional lubrication circuit 40 similar to the first embodiment.
However, unlike the first embodiment, this lubricating oil amount control circuit includes a pilot circuit 54 added to the clutch hydraulic circuit 50 and a lubrication circuit 46 added to the conventional lubrication circuit 40. This circuit includes a lubricating circuit 47 for the clutch, and a lubricating oil amount control valve 52, which is a two-bottom, three-position switching valve, connected to these three circuits 54, 46, and 47. Next, the effects of this embodiment will be explained based on a schematic clutch embodying the first embodiment shown in FIG. 3, and operation diagrams of the embodiment shown in FIGS. 4 and 5.
第3図はlW式ツクラッチ部分拡大図であって、図示1
部はクラッチ51を、図示右部はクラッチ作動油流入回
路50を、また図示下部は第1実施例の潤滑油量制御回
路を示しく図中の番号は第1図の番号と対応する)、潤
滑油量制御弁52のスプール521にクラッチ作動圧P
が加わると、圧力上昇に伴いバネSが押し縮められ、ス
プール521の側面の孔522とハウジングの孔523
との相対位置が変化することを利用し、潤滑油量を制御
する構成である。作動説明すれば、先ず、クラッチ係合
中は、クラッチ作動油圧が潤滑油量制御弁52にかかる
と、ハウジングの孔523がオリフィスとなって潤滑油
がクラッチ室に吐き出され、油圧が上昇するに伴い油量
は増加するが、ある圧力P1に達すると、スプール52
1の孔522とハウジングの孔523とがずれ始め油量
が減少する(同図(a))、そして、クラッチ係合が完
了すると、スプ−ル521の孔522とハウジングの孔
523とが完全にずれて潤滑油の流れが止まる。Figure 3 is a partially enlarged view of the lW type clutch, as shown in Figure 1.
The right part of the figure shows the clutch 51, the right part of the figure shows the clutch hydraulic oil inflow circuit 50, and the lower part of the figure shows the lubricating oil amount control circuit of the first embodiment (the numbers in the figure correspond to the numbers in FIG. 1), Clutch operating pressure P is applied to the spool 521 of the lubricating oil amount control valve 52.
When , the spring S is compressed as the pressure increases, and the hole 522 on the side of the spool 521 and the hole 523 on the housing
This structure controls the amount of lubricating oil by utilizing changes in the relative position with respect to the lubricating oil. To explain the operation, first, when the clutch is engaged, when the clutch operating hydraulic pressure is applied to the lubricating oil amount control valve 52, the hole 523 of the housing becomes an orifice and the lubricating oil is discharged into the clutch chamber, and as the hydraulic pressure increases. The amount of oil increases accordingly, but when it reaches a certain pressure P1, the spool 52
The hole 522 of the spool 521 and the hole 523 of the housing begin to shift, and the oil amount decreases (FIG. 1(a)). Then, when the clutch engagement is completed, the hole 522 of the spool 521 and the hole 523 of the housing completely align. The lubricating oil stops flowing.
(同図(b))、最後に、クラッチの開放時を説明すれ
ば、クラッチ作動圧Pが回路50内に発生していない、
(P−0)ため、スプール521を押し縮める力はなく
、従って潤滑油は止まったままである。尚、本例は、第
1実施例の一実施例であるため、従来の潤滑回路40も
備えており、このため従来の潤滑回路40からの潤滑油
は引き続きクラッチに供給されている点に替わりはない
(そこで、第3実施例及び第4実施例としては、第1実
施例及び第2実施例の全体回路から、従来の潤滑回路4
0を除いた構成の回路でもよい)0以上を、第4図及び
第5図に基づき、実機搭載で得られるデータで示せば、
クラッチ作動圧Pと潤滑油IQとの関係は、第4図(a
)となり、作動時間tとクラッチ作動油圧Pとの関係は
、第5図(a)となり、作動時間(とクラッチ潤滑油I
Qとの関係は第5図(b)となる、最も、潤滑油量制御
弁52を他の形式又は他の性能特性のものと交換すれば
、第4図(b)に示す特性のものやその他各種の特性の
ものをすることができる。かがる実施例の効果をまとめ
ると、次の通りとなる。((b) in the same figure).Finally, when the clutch is released, the clutch operating pressure P is not generated in the circuit 50.
(P-0), there is no force to compress the spool 521, and therefore the lubricating oil remains stopped. Since this example is an example of the first embodiment, it also includes a conventional lubrication circuit 40, and therefore, instead of lubricating oil from the conventional lubrication circuit 40 continuing to be supplied to the clutch. (Therefore, in the third and fourth embodiments, from the overall circuits of the first and second embodiments, the conventional lubrication circuit 4
(It may be a circuit with a configuration excluding 0) If 0 or more is shown using data obtained by mounting on an actual machine based on Figures 4 and 5,
The relationship between clutch operating pressure P and lubricating oil IQ is shown in Figure 4 (a).
), and the relationship between the operating time t and the clutch operating oil pressure P is as shown in FIG.
The relationship between Various other characteristics can also be used. The effects of this embodiment can be summarized as follows.
(1)クラッチ係合途中
クラッチ潤滑油量を多くでき、クラッチを十分に冷却し
、かつ、潤滑することができる。(1) The amount of clutch lubricating oil can be increased during clutch engagement, and the clutch can be sufficiently cooled and lubricated.
(2)クラッチ係合完了時
クラッチ潤滑油量は少なくでき、クラッチ以外の部位に
余剰潤滑油を回すことができる。(2) The amount of clutch lubricating oil can be reduced when clutch engagement is completed, and surplus lubricating oil can be distributed to parts other than the clutch.
(3)クラッチ開放時
クラッチ潤滑油量は少なくでき、クラッチによる潤滑油
の撹拌がなくなるため、クラッチ空転ロスを減少させる
ことができる。(3) The amount of clutch lubricating oil can be reduced when the clutch is released, and since the lubricating oil is no longer stirred by the clutch, clutch idle loss can be reduced.
(発明の効果)
以上説明したように、本発明に係わる湿式クラッチの潤
滑油量制御回路は、クラッチが必要とする潤滑油量を適
宜提供することができる。(Effects of the Invention) As described above, the lubricating oil amount control circuit for a wet clutch according to the present invention can appropriately provide the amount of lubricating oil required by the clutch.
またこの結果、クラッチ空転ロスを最小限に押さえるこ
とが可能となり、更に、余剰の潤滑油を他の潤滑装置部
に提供することが可能となる。Moreover, as a result, it becomes possible to suppress clutch slip loss to a minimum, and furthermore, it becomes possible to provide surplus lubricating oil to other lubricating device parts.
第1図乃至第5図は本発明に係わる湿式クラッチの潤滑
油量制御回路を説明する図であって、第1図は第1実施
例図、第2図は第2実施例図、第3図は前記第1実施例
に基づく模式クラッチの一実施例図、第4図及び第5図
はこれら実施例の作用を示す図、及び第6図は従来の湿
式クラッチの潤滑回路図である。
40・・・潤滑回路
50・・・クラッチ油圧回路
51・・・クラッチ
52・・・潤滑油量制御弁
46.53・・潤滑回路
54・・・パイロット回路
47.55・・クラッチへの潤滑回路
P・・・作動圧
Ps・・クラッチ係合
Q・・・5滑油量
S・
522・
523・
・バネ
・スプール
・スプールの孔
・ハウジングの孔1 to 5 are diagrams for explaining a lubricating oil amount control circuit for a wet clutch according to the present invention, in which FIG. 1 is a diagram of a first embodiment, FIG. 2 is a diagram of a second embodiment, and FIG. The figure is an embodiment of a schematic clutch based on the first embodiment, FIGS. 4 and 5 are diagrams showing the operation of these embodiments, and FIG. 6 is a lubrication circuit diagram of a conventional wet clutch. 40... Lubrication circuit 50... Clutch hydraulic circuit 51... Clutch 52... Lubricating oil amount control valve 46.53... Lubrication circuit 54... Pilot circuit 47.55... Lubrication circuit to clutch P...Operating pressure Ps...Clutch engagement Q...5 Lubricating oil amount S・522・523・・Spring・Spool・Spool hole・Housing hole
Claims (1)
の作動圧を使い、潤滑油量を制御する構成を特徴とする
湿式クラッチの潤滑油量制御回路A lubricating oil amount control circuit for a wet type clutch, characterized in that the lubricating oil amount is controlled by using the operating pressure of the wet type clutch to supply lubricating oil to the wet type clutch.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27547088A JPH02120517A (en) | 1988-10-31 | 1988-10-31 | Lubricant amount control circuit of wet type clutch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27547088A JPH02120517A (en) | 1988-10-31 | 1988-10-31 | Lubricant amount control circuit of wet type clutch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02120517A true JPH02120517A (en) | 1990-05-08 |
Family
ID=17555988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27547088A Pending JPH02120517A (en) | 1988-10-31 | 1988-10-31 | Lubricant amount control circuit of wet type clutch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02120517A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6308812B1 (en) * | 1999-09-07 | 2001-10-30 | Case Corporation | Clutch control valve |
US6840363B2 (en) * | 2003-02-06 | 2005-01-11 | Borgwarner, Inc. | Multi-disk friction device selective lubrication on demand |
DE102005007685A1 (en) * | 2005-02-19 | 2006-08-31 | Zf Friedrichshafen Ag | Cooling oil feed for wet-running shift or start-up element has radial bore in shift/start-up element shaft for passing cooling oil to lamella packet; quantity of oil fed to packet can be mechanically controlled depending on piston position |
US20110214959A1 (en) * | 2010-03-03 | 2011-09-08 | Fukaya Kazuyuki | Hydraulic clutch |
JP2012180867A (en) * | 2011-02-28 | 2012-09-20 | Aisin Aw Co Ltd | Lubricating device for automatic transmission |
JP2012229817A (en) * | 2012-08-31 | 2012-11-22 | Jatco Ltd | Automatic transmission |
JP2013148178A (en) * | 2012-01-20 | 2013-08-01 | Jatco Ltd | Automatic transmission |
EP4386227A1 (en) * | 2022-12-16 | 2024-06-19 | Kubota Corporation | Hydraulic clutch and work-vehicle travel power transmission apparatus including the hydraulic clutch |
-
1988
- 1988-10-31 JP JP27547088A patent/JPH02120517A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6308812B1 (en) * | 1999-09-07 | 2001-10-30 | Case Corporation | Clutch control valve |
US6840363B2 (en) * | 2003-02-06 | 2005-01-11 | Borgwarner, Inc. | Multi-disk friction device selective lubrication on demand |
DE102005007685A1 (en) * | 2005-02-19 | 2006-08-31 | Zf Friedrichshafen Ag | Cooling oil feed for wet-running shift or start-up element has radial bore in shift/start-up element shaft for passing cooling oil to lamella packet; quantity of oil fed to packet can be mechanically controlled depending on piston position |
US20110214959A1 (en) * | 2010-03-03 | 2011-09-08 | Fukaya Kazuyuki | Hydraulic clutch |
US8636126B2 (en) * | 2010-03-03 | 2014-01-28 | Honda Motor Co., Ltd. | Hydraulic clutch |
JP2012180867A (en) * | 2011-02-28 | 2012-09-20 | Aisin Aw Co Ltd | Lubricating device for automatic transmission |
JP2013148178A (en) * | 2012-01-20 | 2013-08-01 | Jatco Ltd | Automatic transmission |
JP2012229817A (en) * | 2012-08-31 | 2012-11-22 | Jatco Ltd | Automatic transmission |
EP4386227A1 (en) * | 2022-12-16 | 2024-06-19 | Kubota Corporation | Hydraulic clutch and work-vehicle travel power transmission apparatus including the hydraulic clutch |
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