JPS5971937U - Automatic engine control device for work vehicles - Google Patents
Automatic engine control device for work vehiclesInfo
- Publication number
- JPS5971937U JPS5971937U JP16764982U JP16764982U JPS5971937U JP S5971937 U JPS5971937 U JP S5971937U JP 16764982 U JP16764982 U JP 16764982U JP 16764982 U JP16764982 U JP 16764982U JP S5971937 U JPS5971937 U JP S5971937U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- hydraulic cylinder
- oil chamber
- control device
- tank
- 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
Links
Landscapes
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Feedback Control In General (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の自動エンジン制御装置の説明図、第２図
は本考案の１実施例を示す自動エンジン制御装置の説明
図、第３図はその他の実施例の説明図である。
２；エンジン、１：ポンプ、８；圧力油路、６゜７；方
向切換弁、１４；タンク油路、１５；タンク、４．５；
油圧アクチュエータ、２′ ；加減速レバー、Ｂ、 Ｄ
；油圧シリンダ、１６；ピストン、３５；ピストン、３
４；ピストン、１７；第１油室、３３；小径油室、１９
；第２油室、３２；大径油室、２０；スプリング。FIG. 1 is an explanatory diagram of a conventional automatic engine control device, FIG. 2 is an explanatory diagram of an automatic engine control device showing one embodiment of the present invention, and FIG. 3 is an explanatory diagram of another embodiment. 2; Engine, 1: Pump, 8; Pressure oil line, 6° 7; Directional switching valve, 14; Tank oil line, 15; Tank, 4.5;
Hydraulic actuator, 2'; acceleration/deceleration lever, B, D
;Hydraulic cylinder, 16;Piston, 35;Piston, 3
4; Piston, 17; First oil chamber, 33; Small diameter oil chamber, 19
;Second oil chamber, 32;Large diameter oil chamber, 20;Spring.
Claims (1)
圧力油路、方向切換弁、タンク油路を経過してタンクに
還流させると共に、前記方向切換弁を切換操作すること
によって油圧アクチュエータを駆動するようにした作業
車において、前記エンジンの加減速レバーとピストンに
よって区画された油室を有する油圧シリンダを連動連結
し、この油圧シリンダの一つの油室は前記圧力油路に接
続し、他の一つの油室は前記タンク油路に接続し、前記
方向切換弁が中立位置に位置するときには、前記一つの
油室と前記能の一つの油室の油圧力が略等しくなるよう
にすると共に、前記方向切換弁が前記油圧アクチュエー
タを駆動する側に切換操作したときには、前記油圧シリ
ンダに関連配設したスプリングが圧縮されるようにした
ことを特徴とする作業車の自動エンジン制御装置。The oil discharged from the pump connected to the output shaft of the engine is returned to the tank through a pressure oil path, a directional switching valve, and a tank oil path, and the hydraulic actuator is driven by switching the directional switching valve. In such a work vehicle, a hydraulic cylinder having an oil chamber partitioned by an acceleration/deceleration lever of the engine and a piston is interlocked and connected, one oil chamber of the hydraulic cylinder is connected to the pressure oil path, and the other is connected to the hydraulic cylinder. The two oil chambers are connected to the tank oil passage, and when the directional control valve is located at the neutral position, the hydraulic pressures of the one oil chamber and the one oil chamber of the function are approximately equal to each other; An automatic engine control device for a working vehicle, characterized in that a spring disposed in relation to the hydraulic cylinder is compressed when the directional switching valve is switched to a side that drives the hydraulic actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16764982U JPS5971937U (en) | 1982-11-04 | 1982-11-04 | Automatic engine control device for work vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16764982U JPS5971937U (en) | 1982-11-04 | 1982-11-04 | Automatic engine control device for work vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5971937U true JPS5971937U (en) | 1984-05-16 |
| JPS6332917Y2 JPS6332917Y2 (en) | 1988-09-02 |
Family
ID=30366727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16764982U Granted JPS5971937U (en) | 1982-11-04 | 1982-11-04 | Automatic engine control device for work vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5971937U (en) |
-
1982
- 1982-11-04 JP JP16764982U patent/JPS5971937U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6332917Y2 (en) | 1988-09-02 |
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