JPS61157704U - - Google Patents

Info

Publication number
JPS61157704U
JPS61157704U JP1985043048U JP4304885U JPS61157704U JP S61157704 U JPS61157704 U JP S61157704U JP 1985043048 U JP1985043048 U JP 1985043048U JP 4304885 U JP4304885 U JP 4304885U JP S61157704 U JPS61157704 U JP S61157704U
Authority
JP
Japan
Prior art keywords
main
circuit
pilot
pilot circuit
throttle
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.)
Granted
Application number
JP1985043048U
Other languages
Japanese (ja)
Other versions
JPH0326350Y2 (en
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 filed Critical
Priority to JP1985043048U priority Critical patent/JPH0326350Y2/ja
Publication of JPS61157704U publication Critical patent/JPS61157704U/ja
Application granted granted Critical
Publication of JPH0326350Y2 publication Critical patent/JPH0326350Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Control Of Transmission Device (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施例を示す回路図である。 ７，〜１２はクラツチ、１３ａ〜１３ｆは切換
弁、１７は絞り、１８はメイン絞り、１９は保護
バルブ、２０はドレン回路、２１はばね。 The drawing is a circuit diagram showing an embodiment of the present invention. 7, to 12 are clutches, 13a to 13f are switching valves, 17 is a throttle, 18 is a main throttle, 19 is a protection valve, 20 is a drain circuit, and 21 is a spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 油圧力にて作動する前、後進用及び複数の速度
段用のクラツチ７，〜１２を有し、それぞれのク
ラツチ７，〜１２の油圧室をパイロツト圧作動型
の切換弁１３ａ，〜１３ｆを介して油圧源に接続
し、また上記切換弁１３ａ，〜１３ｆの両側端部
に設けたパイロツト圧作用部の一方をメインパイ
ロツト回路１４に、他方を電磁切換弁１６ａ，〜
１６ｆを介してドレン側に接続し、さらに上記両
パイロツト圧作用部を絞り１７を介してパイロツ
ト回路で接続した自動変速機において、上記メイ
ンパイロツト回路１４に絞り１８を介装すると共
に、ドレン回路２０を接続し、このドレン回路２
０にパイロツト圧にてばね２１に抗して連通位置
となる保護バルブ１９を介装し、この保護バルブ
１９のパイロツト圧による切換作用部に上記メイ
ンパイロツト回路１４のメイン絞り１８の上流側
に接続し、上記保護バルブ１９のばね２１の閉じ
方向の付勢力を、上記メインパイロツト回路１４
を、上記切換弁１３ａ，〜１３ｆのうち、３個以
上の切換弁１３ａ，〜１３ｆのパイロツト回路に
流れが生じたときの流量が流れたときのメイン絞
り１８による圧力差にて切換る付勢力としたこと
を特徴とする自動変速機の変速パイロツト回路。 It has clutches 7, - 12 for front, reverse, and a plurality of speed stages that are operated by hydraulic pressure, and the hydraulic chambers of the respective clutches 7, - 12 are connected via pilot pressure operated switching valves 13a, - 13f. One of the pilot pressure acting parts provided at both ends of the switching valves 13a, ~13f is connected to the main pilot circuit 14, and the other is connected to the electromagnetic switching valve 16a, ~13f.
In an automatic transmission in which the main pilot circuit 14 is connected to the drain side via the main pilot circuit 14, and the pilot pressure acting parts are connected to the drain side via the throttle 17, the throttle 18 is interposed in the main pilot circuit 14, and the drain circuit 20 Connect this drain circuit 2
0, a protective valve 19 is interposed in the communication position against the spring 21 due to the pilot pressure, and the switching action section of the protective valve 19 due to the pilot pressure is connected to the upstream side of the main throttle 18 of the main pilot circuit 14. The biasing force of the spring 21 of the protection valve 19 in the closing direction is applied to the main pilot circuit 14.
is the biasing force that is switched by the pressure difference caused by the main throttle 18 when a flow occurs in the pilot circuit of three or more of the switching valves 13a, - 13f among the switching valves 13a, - 13f. A speed change pilot circuit for an automatic transmission characterized by the following.
JP1985043048U 1985-03-25 1985-03-25 Expired JPH0326350Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985043048U JPH0326350Y2 (en) 1985-03-25 1985-03-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985043048U JPH0326350Y2 (en) 1985-03-25 1985-03-25

Publications (2)

Publication Number Publication Date
JPS61157704U true JPS61157704U (en) 1986-09-30
JPH0326350Y2 JPH0326350Y2 (en) 1991-06-07

Family

ID=30554356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985043048U Expired JPH0326350Y2 (en) 1985-03-25 1985-03-25

Country Status (1)

Country Link
JP (1) JPH0326350Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013126808A (en) * 2011-12-19 2013-06-27 Denso Corp Power transmission device for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013126808A (en) * 2011-12-19 2013-06-27 Denso Corp Power transmission device for vehicle

Also Published As

Publication number Publication date
JPH0326350Y2 (en) 1991-06-07

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