JPH0223901Y2 - - Google Patents
Info
- Publication number
- JPH0223901Y2 JPH0223901Y2 JP6482885U JP6482885U JPH0223901Y2 JP H0223901 Y2 JPH0223901 Y2 JP H0223901Y2 JP 6482885 U JP6482885 U JP 6482885U JP 6482885 U JP6482885 U JP 6482885U JP H0223901 Y2 JPH0223901 Y2 JP H0223901Y2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic oil
- pulley
- oil
- driven shaft
- lubricating oil
- 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
- 239000010720 hydraulic oil Substances 0.000 claims description 67
- 239000010687 lubricating oil Substances 0.000 claims description 49
- 239000003921 oil Substances 0.000 claims description 33
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000000314 lubricant Substances 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
- Transmissions By Endless Flexible Members (AREA)
- Gear-Shifting Mechanisms (AREA)
- Details Of Reciprocating Pumps (AREA)
Description
【考案の詳細な説明】
（考案の技術分野）
この考案は、駆動軸と従動軸とを駆動軸上に設
けられる駆動軸プーリと従動軸上に設けられる従
動軸プーリとに捲回される無端ベルトによつて連
結し、該駆動軸プーリと従動軸プーリの可動プー
リを圧力流体の圧力によつて駆動軸上又は従動軸
上を軸線に沿つて摺動させることにより該駆動軸
プーリと従動軸プーリのプーリ溝巾を変えて該駆
動軸と従動軸の速度比を変える形式のベルト式無
段可変伝動装置の前記駆動軸プーリ及び従動軸プ
ーリの可動プーリ等に作動油を供給する作動油供
給路に作動油ポンプによつて吸揚げられた内燃エ
ンジンのオイルタンク内の作動油を送油する作動
油回路に関する。[Detailed description of the invention] (Technical field of the invention) This invention is an endless system in which a driving shaft and a driven shaft are wound around a driving shaft pulley provided on the driving shaft and a driven shaft pulley provided on the driven shaft. The driving shaft pulley and the driven shaft are connected by a belt, and the movable pulleys of the driving shaft pulley and the driven shaft pulley are slid along the axis on the driving shaft or the driven shaft by the pressure of pressure fluid. Hydraulic oil supply for supplying hydraulic oil to movable pulleys of the driving shaft pulley and driven shaft pulley of a belt-type continuously variable transmission device of a type in which the speed ratio of the driving shaft and driven shaft is changed by changing the pulley groove width of the pulley. The present invention relates to a hydraulic oil circuit that sends hydraulic oil in an oil tank of an internal combustion engine that is sucked up by a hydraulic oil pump to a road.
（技術の背景）
上記ベルト式無段可変伝動装置は例えば特開昭
52−98861号公報等によつて公知である。このよ
うなベルト式無段可変伝動装置においては、作動
油の油圧力によつて駆動軸プーリ及び従動軸プー
リの夫々の可動プーリを駆動軸上又は従動軸上を
軸線に沿つて摺動させる等のため、各可動プーリ
（の圧力室）に作動油を供給する作動油供給路等
に作動油ポンプによつて吸揚げられた内燃エンジ
ンのオイルタンク内の作動油を送油する作動油回
路が付設される。(Technical background) The above-mentioned belt-type continuously variable transmission is, for example,
This method is known from Japanese Patent No. 52-98861. In such a belt-type continuously variable transmission, the movable pulleys of the drive shaft pulley and the driven shaft pulley are slid along the axis on the drive shaft or the driven shaft by the hydraulic pressure of the hydraulic oil. Therefore, there is a hydraulic oil circuit that sends the hydraulic oil in the oil tank of the internal combustion engine that is sucked up by the hydraulic oil pump to the hydraulic oil supply path that supplies hydraulic oil to (the pressure chamber of) each movable pulley. attached.
（従来技術と問題点）
従来、前記作動油回路は第２図にように内燃エ
ンジンのオイルタンクａと接続する作動油流路ｂ
にその上流側から作動油ポンプｃとリリーフ弁ｄ
と高圧のフイルターｅを順次配設し、前記作動油
ポンプｃによつて前記オイルタンクａ内の作動油
を吸揚げ高油圧にして作動油流路ｂに送油し、次
いでその作動油を前記リリーフ弁ｄによつて所定
圧力に制御し、更にその作動油を前記フイルター
ｅによつて濾過して可動プーリ等の作動油供給路
に送るようになつている。なお、前記リリーフ弁
ｄからの余分な作動油はリリーフ流路ｆを介して
オイルタンクａ内に戻される。図中ｇはサクシヨ
ンフイルタである。(Prior Art and Problems) Conventionally, the hydraulic oil circuit has a hydraulic oil flow path b connected to an oil tank a of an internal combustion engine, as shown in FIG.
From the upstream side, install the hydraulic oil pump c and the relief valve d.
and a high-pressure filter e are arranged in sequence, and the hydraulic oil in the oil tank a is sucked up by the hydraulic oil pump c and made to have a high hydraulic pressure and sent to the hydraulic oil flow path b. The pressure is controlled to a predetermined level by a relief valve d, and the hydraulic oil is filtered by the filter e and sent to a hydraulic oil supply path such as a movable pulley. Incidentally, excess hydraulic oil from the relief valve d is returned into the oil tank a via the relief passage f. In the figure, g is a suction filter.
しかし乍ら、ベルト式無段可変伝動装置の可動
プーリの作動に使用される作動油は相当高圧（数
10Kg／cm2）のものが必要であるために上述の従来
構造のように作動油ポンプｃがオイルタンクａ内
の作動油を直接高油圧にする方式であると、作動
油ポンプｃは吐出圧と吸入圧の圧力差が非常に大
きくなつて大容量化し、ポンプ効率が低下する欠
点があつた。 However, the hydraulic oil used to operate the movable pulley of the belt-type continuously variable transmission is considerably high pressure (several
10Kg/cm 2 ), so if the hydraulic oil pump c is of a type that directly raises the hydraulic oil in the oil tank a to a high hydraulic pressure as in the conventional structure described above, the hydraulic oil pump c will have a discharge pressure of The problem was that the pressure difference between the pump and the suction pressure became very large, resulting in a large capacity and a decrease in pump efficiency.
なお、上記従来の作動油回路は内燃エンジンの
メインオイルギヤラリに潤滑油を送油する潤滑油
回路とは無関係に専用の回路として設けられてい
る。前記潤滑油回路は第３図に示すように、オイ
ルタンクa′と接続する潤滑油流路b′にその上流側
から潤滑油ポンプc′と低圧のフイルターe′とリリ
ーフ弁d′を順次配設し、前記潤滑油ポンプc′によ
つてオイルタンクa′内の潤滑油を吸揚げて高油圧
にして潤滑油流路b′に送油し、次いでその潤滑油
を前記フイルターe′によつて濾過し、更にその潤
滑油を前記リリーフ弁d′によつて所定圧に制御し
てメインオイルギヤラリに送るようになつてい
る。なお、前記リリーフ弁d′からの余分な潤滑油
はリリーフ流路f′を介してオイルタンクa′内に戻
される。図中g′はサクシヨンフイルタである。 The conventional hydraulic oil circuit described above is provided as a dedicated circuit independent of the lubricating oil circuit that feeds lubricating oil to the main oil gear of the internal combustion engine. As shown in Fig. 3, the lubricant circuit includes a lubricant pump c', a low-pressure filter e', and a relief valve d' arranged in sequence from the upstream side of the lubricant flow path b' connected to the oil tank a'. The lubricating oil in the oil tank a' is sucked up by the lubricating oil pump c', the oil is raised to high oil pressure, and sent to the lubricating oil flow path b', and then the lubricating oil is passed through the filter e'. The lubricating oil is then controlled to a predetermined pressure by the relief valve d' and sent to the main oil gear. Incidentally, excess lubricating oil from the relief valve d' is returned into the oil tank a' via the relief passage f'. In the figure, g' is a suction filter.
（考案の目的）
そこでこの考案は、上述の如き問題に対処する
ことの可能なベルト式無段可変伝動装置の作動油
回路を提供することを目的とする。(Purpose of the invention) Therefore, the object of this invention is to provide a hydraulic oil circuit for a belt-type continuously variable transmission that can deal with the above-mentioned problems.
（考案の構成）
この考案では上記目的を達成するため、駆動軸
と従動軸とを駆動軸上に設けられる駆動軸プーリ
と従動軸上に設けられる従動軸プーリとに捲回さ
れる無端ベルトによつて連結し、該駆動軸プーリ
と従動軸プーリの可動プーリを作動軸の油圧力に
よつて駆動軸上又は従動軸上を軸線に沿つて摺動
させることにより該駆動軸プーリと従動軸プーリ
のプーリ溝巾を変えて該駆動軸と従動軸の速度比
を変える形式のベルト式無段可変伝動装置の前記
駆動軸プーリ及び従動軸プーリの可動プーリ等に
作動油を供給する作動油供給路に作動油ポンプに
よつて吸揚げられた内燃エンジンのオイルタンク
内の作動油を送油する作動油回路であつて、内燃
エンジンのメインオイルギヤラリに潤滑油ポンプ
によつて吸揚げられた前記オイルタンク内の潤滑
油を送油する潤滑油回路の前記潤滑油ポンプの下
流側に潤滑油ポンプを通過した潤滑油の一部が流
れ込むように前記作動油ポンプを接続するように
したものである。(Structure of the invention) In order to achieve the above object, this invention uses an endless belt that winds the driving shaft and the driven shaft around the driving shaft pulley provided on the driving shaft and the driven shaft pulley provided on the driven shaft. The movable pulleys of the drive shaft pulley and the driven shaft pulley are slid along the axis on the drive shaft or the driven shaft by the hydraulic pressure of the operating shaft, thereby connecting the drive shaft pulley and the driven shaft pulley. A hydraulic oil supply path for supplying hydraulic oil to the movable pulleys of the driving shaft pulley and the driven shaft pulley of a belt-type continuously variable transmission of a type in which the speed ratio of the driving shaft and driven shaft is changed by changing the pulley groove width. A hydraulic oil circuit that sends hydraulic oil in the oil tank of an internal combustion engine that is sucked up by a hydraulic oil pump to the main oil gear gallery of the internal combustion engine. The hydraulic oil pump is connected so that a portion of the lubricating oil that has passed through the lubricating oil pump flows into the downstream side of the lubricating oil pump of the lubricating oil circuit that feeds the lubricating oil in the oil tank. be.
（考案の実施例）
以下、この考案の一実施例を第１図に基づき具
体的に説明する。(Embodiment of the invention) Hereinafter, an embodiment of this invention will be described in detail based on FIG.
図において、１は図示しない内燃エンジンのメ
インオイルギヤラリに潤滑油を送油する潤滑油回
路、２は図示しないベルト式無段可変伝動装置の
可動プーリ等の作動油供給油に作動油を送油する
作動油回路である。 In the figure, 1 is a lubricating oil circuit that sends lubricating oil to the main oil gear of an internal combustion engine (not shown), and 2 is a hydraulic oil circuit that sends hydraulic oil to movable pulleys, etc. of a belt-type continuously variable transmission (not shown). This is a hydraulic oil circuit.
前記潤滑油回路１は、内燃エンジンのオイルタ
ンク３と接続する潤滑油流路４にその上流側から
潤滑油ポンプ５と低圧のフイルタ６とリリーフ弁
７を順次配設し、前記潤滑油ポンプ５によつて前
記オイルタンク３内の潤滑油を吸揚げ高圧油にし
て潤滑油流路４に送油し、次いでその潤滑油を前
記フイルタ６で濾過し、更にその潤滑油を前記リ
リーフ弁７によつて所定圧に制御して前記メイン
オイルギヤラリに送るようになつている。前記リ
リーフ弁７からの余分な潤滑油はリリーフ流路８
を流れてオイルタンク３内に戻される。 The lubricating oil circuit 1 includes a lubricating oil pump 5, a low pressure filter 6, and a relief valve 7 sequentially arranged from the upstream side in a lubricating oil passage 4 connected to an oil tank 3 of an internal combustion engine. The lubricating oil in the oil tank 3 is sucked up and made into high-pressure oil and sent to the lubricating oil flow path 4, then the lubricating oil is filtered by the filter 6, and the lubricating oil is further passed to the relief valve 7. Therefore, the oil is controlled to a predetermined pressure and sent to the main oil gear gallery. Excess lubricating oil from the relief valve 7 flows into the relief flow path 8.
and is returned to the oil tank 3.
前記作動油回路２は、その作動油流路９を前記
潤滑油流路４の前記フイルタ６とリリーフ弁７と
の間に連通接続し、その上流側から作動油ポンプ
１０とリリーフ弁１１を順次配設して、前記作動
油ポンプ１０によつて潤滑油流路４内を流れる潤
滑油の一部を吸揚げ高圧油にして作動油流路９に
送油し、次いでその作動油とされる潤滑油を前記
リリーフ弁１１にて所定圧に制御して前記可動プ
ーリ等の作動油供給路に送る。前記リリーフ弁１
１からの余分な作動油は前記潤滑油流路４のフイ
ルタ６とリリーフ弁７との間に接続されるリリー
フ流路１２を流れて潤滑油流路４内を流れる潤滑
油と合流する。 The hydraulic oil circuit 2 connects its hydraulic oil passage 9 between the filter 6 and the relief valve 7 of the lubricating oil passage 4, and sequentially connects the hydraulic oil pump 10 and the relief valve 11 from the upstream side thereof. The hydraulic oil pump 10 sucks up a part of the lubricating oil flowing in the lubricating oil passage 4 and converts it into high-pressure oil and sends it to the hydraulic oil passage 9, which then uses it as the hydraulic oil. The lubricating oil is controlled to a predetermined pressure by the relief valve 11 and sent to the hydraulic oil supply path of the movable pulley or the like. Said relief valve 1
The excess hydraulic oil from the lubricating oil passage 4 flows through the relief passage 12 connected between the filter 6 and the relief valve 7 and joins with the lubricating oil flowing inside the lubricating oil passage 4.
なお、図中１３はサクシヨンフイルタである。 Note that 13 in the figure is a suction filter.
上記のような構成とされているので、作動油の
供給源となる作動油ポンプ１０は潤滑油の供給源
となる潤滑油ポンプ５を１次ポンプとする２次ポ
ンプとなり、吐出圧と吸入圧との圧力差が小さく
なつてポンプ駆動動力が小さくなり、かつ、ポン
プ効率が向上する。また、作動油を濾過するフイ
ルタが潤滑油のフイルタ６と兼用されるので不要
となると共に該フイルタ６によつて濾過された作
動油を吸揚げるため作動油ポンプ１０はゴミかみ
の発生がない。 With the above configuration, the hydraulic oil pump 10 serving as a supply source of hydraulic oil becomes a secondary pump whose primary pump is the lubricating oil pump 5 serving as a supply source of lubricating oil, and the discharge pressure and suction pressure As the pressure difference between the pump and the pump becomes smaller, the pump driving power becomes smaller and the pump efficiency improves. Further, since the filter for filtering the hydraulic oil is also used as the lubricating oil filter 6, it is unnecessary, and since the hydraulic oil filtered by the filter 6 is sucked up, the hydraulic oil pump 10 does not generate dust.
（考案の効果）
以上要するに、この考案に係るベルト式無段可
変伝動装置の作動油回路は、駆動軸と従動軸とを
駆動軸上に設けられる駆動軸プーリと従動軸上に
設けられる従動軸プーリとに捲回される無端ベル
トによつて連結し、該駆動軸プーリと従動軸プー
リの可動プーリを作動軸の油圧力によつて駆動軸
上又は従動軸上を軸線に沿つて摺動させることに
より該駆動軸プーリと従動軸プーリのプーリ溝巾
を変えて該駆動軸と従動軸の速度比を変える形式
のベルト式無段可変伝動装置の前記駆動軸プーリ
及び従動軸プーリの可動プーリ等に作動油を供給
する作動油供給路に作動油ポンプによつて吸揚げ
られた内燃エンジンのオイルタンク内の作動油を
送油する作動油回路であつて、内燃エンジンのメ
インオイルギヤラリに潤滑油ポンプによつて吸揚
げられた前記オイルタンク内の潤滑油を送油する
潤滑油回路の前記潤滑油ポンプの下流側に潤滑油
ポンプを通過した潤滑油の一部が流れ込むように
前記作動油ポンプを接続するようにしたことを特
徴としている。(Effect of the invention) In summary, the hydraulic oil circuit of the belt type continuously variable transmission according to this invention connects the drive shaft and the driven shaft with the drive shaft pulley provided on the drive shaft and the driven shaft provided on the driven shaft. The movable pulleys of the driving shaft pulley and driven shaft pulley are connected to the pulley by an endless belt wound around the pulley, and the movable pulleys of the driving shaft pulley and driven shaft pulley are slid along the axis on the driving shaft or the driven shaft by the hydraulic pressure of the operating shaft. Movable pulleys of the driving shaft pulley and the driven shaft pulley of a belt type continuously variable transmission device of the type in which the speed ratio of the driving shaft and the driven shaft is changed by changing the pulley groove width of the driving shaft pulley and the driven shaft pulley. A hydraulic oil circuit that sends hydraulic oil in the oil tank of an internal combustion engine that is sucked up by a hydraulic oil pump to a hydraulic oil supply path that supplies hydraulic oil to the main oil gear of the internal combustion engine. The operation is performed so that a portion of the lubricating oil that has passed through the lubricating oil pump flows into the downstream side of the lubricating oil pump of a lubricating oil circuit that sends the lubricating oil in the oil tank that has been sucked up by the lubricating oil pump. It is characterized by the fact that it can be connected to an oil pump.
従つて、前記作動油ポンプは潤滑油ポンプによ
つて予圧を与えられた潤滑油を吸揚げて高油圧と
するために吐出圧と吸入圧との圧力差が小さくな
つて、ポンプ駆動動力が小さくなり、かつ、ポン
プ効率が向上する利点がある。 Therefore, since the hydraulic oil pump sucks up the lubricating oil pre-pressured by the lubricating oil pump and generates high oil pressure, the pressure difference between the discharge pressure and the suction pressure becomes small, and the pump driving power becomes small. This has the advantage of improving pump efficiency.
第１図はこの考案の一実施例の構成図、第２図
は従来の作動油回路の構成図、第３図は従来の潤
滑油回路の構成図である。
１……潤滑油回路、２……作動油回路、３……
オイルタンク、５……潤滑油ポンプ、６……フイ
ルタ、９……作動油流路、１０……作動油ポン
プ。
FIG. 1 is a block diagram of an embodiment of this invention, FIG. 2 is a block diagram of a conventional hydraulic oil circuit, and FIG. 3 is a block diagram of a conventional lubricating oil circuit. 1...Lubricating oil circuit, 2...Hydraulic oil circuit, 3...
Oil tank, 5... Lubricating oil pump, 6... Filter, 9... Hydraulic oil flow path, 10... Hydraulic oil pump.
Claims (1)
軸プーリと従動軸上に設けられる従動軸プーリと
に捲回される無端ベルトによつて連結し、該駆動
軸プーリと従動軸プーリの可動プーリを作動油の
油圧力によつて駆動軸上又は従動軸上を軸線に沿
つて摺動させることにより該駆動軸プーリと従動
軸プーリのプーリ溝巾を変えて該駆動軸と従動軸
の速度比を変える形式のベルト式無段可変伝動装
置の前記駆動軸プーリ及び従動軸プーリの可動プ
ーリ等に作動油を供給する作動油供給路に作動油
ポンプによつて吸揚げられた内燃エンジンのオイ
ルタンク内の作動油を送油する作動油回路であつ
て、内燃エンジンのメインオイルギヤラリに潤滑
油ポンプによつて吸揚げられた前記オイルタンク
内の潤滑油を送油する潤滑油回路の前記潤滑油ポ
ンプの下流側に潤滑油ポンプを通過した潤滑油の
一部が流れ込むように前記作動油ポンプを接続す
るようにしたことを特徴とするベルト式無段可変
伝動装置の作動油回路。 The drive shaft and the driven shaft are connected by an endless belt wound around the drive shaft pulley provided on the drive shaft and the driven shaft pulley provided on the driven shaft, and the drive shaft pulley and the driven shaft pulley are movable. By sliding the pulley along the axis of the drive shaft or the driven shaft using the hydraulic pressure of the hydraulic oil, the pulley groove widths of the drive shaft pulley and the driven shaft pulley are changed to change the speeds of the drive shaft and the driven shaft. of an internal combustion engine, which is sucked up by a hydraulic oil pump into a hydraulic oil supply path that supplies hydraulic oil to the movable pulleys of the drive shaft pulley and driven shaft pulley of a belt-type continuously variable transmission of the type that changes the ratio. A hydraulic oil circuit that sends the hydraulic oil in the oil tank, the lubricating oil circuit that sends the lubricating oil in the oil tank that has been sucked up by the lubricant pump to the main oil gear gallery of the internal combustion engine. A hydraulic oil circuit for a belt-type continuously variable transmission, characterized in that the hydraulic oil pump is connected so that a portion of the lubricating oil that has passed through the lubricating oil pump flows downstream of the lubricating oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6482885U JPH0223901Y2 (en) | 1985-04-30 | 1985-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6482885U JPH0223901Y2 (en) | 1985-04-30 | 1985-04-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61181151U JPS61181151U (en) | 1986-11-12 |
| JPH0223901Y2 true JPH0223901Y2 (en) | 1990-06-29 |
Family
ID=30596271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6482885U Expired JPH0223901Y2 (en) | 1985-04-30 | 1985-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0223901Y2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE452306T1 (en) * | 2004-08-13 | 2010-01-15 | Bosch Gmbh Robert | CONTINUOUSLY VARIABLE TRANSMISSION WITH A SET OF HYDRAULIC PUMPS |
| KR20120037623A (en) * | 2010-10-12 | 2012-04-20 | 현대자동차주식회사 | Oil supply system of automatic transmission |
| KR101251504B1 (en) | 2010-12-03 | 2013-04-05 | 현대자동차주식회사 | Oil pump system for automatic transmission |
| KR101339230B1 (en) * | 2011-11-29 | 2013-12-09 | 현대자동차 주식회사 | Hydraulic control system for transmission |
| KR101338455B1 (en) * | 2012-09-03 | 2013-12-10 | 현대자동차주식회사 | Oil pressure supply system of automatic transmission |
| KR101405192B1 (en) * | 2012-11-05 | 2014-06-10 | 현대자동차 주식회사 | Oil pressure supply system of automatic transmission |
| KR101405207B1 (en) * | 2012-11-06 | 2014-06-10 | 현대자동차 주식회사 | Oil pressure supply system of automatic transmission |
| KR101438607B1 (en) * | 2012-12-12 | 2014-09-05 | 현대자동차 주식회사 | Oil pressure supply system of automatic transmission |
| KR101484194B1 (en) * | 2013-04-02 | 2015-01-16 | 현대자동차 주식회사 | Hydraulic pressure supply system of automatic transmission |
-
1985
- 1985-04-30 JP JP6482885U patent/JPH0223901Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61181151U (en) | 1986-11-12 |
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