JPH0397548U - - Google Patents
Info
- Publication number
- JPH0397548U JPH0397548U JP542090U JP542090U JPH0397548U JP H0397548 U JPH0397548 U JP H0397548U JP 542090 U JP542090 U JP 542090U JP 542090 U JP542090 U JP 542090U JP H0397548 U JPH0397548 U JP H0397548U
- Authority
- JP
- Japan
- Prior art keywords
- throttle valve
- semi
- accelerator
- wire
- pilot pressure
- 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
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
図面は本考案の一実施例を示すシステム図であ
る。
１……アクセル、２……変位伝達要素、２ａ…
…固定端（アクセル側）、２ｂ……半固定端（ス
ロツトルバルブ側）、２ｃ……ワイヤチユーブ、
２ｄ……ワイヤ、３……スロツトルバルブ、４…
…原動機（エンジン）、５……液圧ポンプ、６…
…液圧モータ、９……バルブ機構、１２ａ……コ
ントロールシリンダ、１２ｂ……コントロールピ
ストン、ａ……アクセル操作量、ｂ……スロツト
ル開度、ｐ１……システム圧、ｐ２……設定圧、
ｐ３……パイロツト圧。
The drawing is a system diagram showing an embodiment of the present invention. 1...Accelerator, 2...Displacement transmission element, 2a...
...Fixed end (accelerator side), 2b...Semi-fixed end (throttle valve side), 2c...Wire tube,
2d...wire, 3...throttle valve, 4...
...Prime mover (engine), 5...Hydraulic pump, 6...
... Hydraulic motor, 9 ... Valve mechanism, 12a ... Control cylinder, 12b ... Control piston, a ... Accelerator operation amount, b ... Throttle opening degree, p 1 ... System pressure, p 2 ... Set pressure ,
p3 ...Pilot pressure.
Claims (1)
られるアクセル操作量に応じて出力が変化する原
動機と、この原動機により駆動される液圧ポンプ
と、この液圧ポンプから吐出される圧液により仕
事をなす液圧モータとを具備してなる液圧駆動シ
ステムに適用されるものであつて、前記変位伝達
要素を、アクセル側の固定端とスロツトルバルブ
側の半固定端とによつて保持されるワイヤチユー
ブ及びこのワイヤチユーブ内を挿通してアクセル
とスロツトルバルブとを連結するワイヤとにより
構成するとともに、液圧駆動システムのシステム
圧が設定圧を上回つた際にパイロツト圧を発生さ
せるバルブ機構と、このバルブ機構におけるパイ
ロツト圧のＯＮ・ＯＦＦ状態に対応してコントロ
ールピストンを進退付勢するコントロールシリン
ダとを設け、スロツトルバルブ側の半固定端をコ
ントロールピストンに固設することによりパイロ
ツト圧ＯＦＦ時に当接半固定端を定位置に保持し
パイロツト圧ＯＮ時に当接半固定端をスロツトル
開度が減少する方向に移動させ得るようにしたこ
とを特徴とする液圧式スロツトル開度制御装置。 Work is done by a prime mover whose output changes according to the amount of accelerator operation applied to the throttle valve via a displacement transmission element, a hydraulic pump driven by this prime mover, and pressurized fluid discharged from this hydraulic pump. The displacement transmission element is connected to a wire held by a fixed end on the accelerator side and a semi-fixed end on the throttle valve side. It consists of a tube and a wire that connects the accelerator and the throttle valve by passing through the wire tube, and a valve mechanism that generates pilot pressure when the system pressure of the hydraulic drive system exceeds the set pressure. In this valve mechanism, a control cylinder is provided which urges the control piston to move forward or backward in response to the ON/OFF state of the pilot pressure, and by fixing the semi-fixed end on the throttle valve side to the control piston, it is possible to A hydraulic throttle opening degree control device characterized in that a semi-fixed abutting end is held in a fixed position and can be moved in a direction in which the throttle opening degree is decreased when pilot pressure is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP542090U JPH0397548U (en) | 1990-01-23 | 1990-01-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP542090U JPH0397548U (en) | 1990-01-23 | 1990-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0397548U true JPH0397548U (en) | 1991-10-08 |
Family
ID=31509134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP542090U Pending JPH0397548U (en) | 1990-01-23 | 1990-01-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0397548U (en) |
-
1990
- 1990-01-23 JP JP542090U patent/JPH0397548U/ja active Pending
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