JPS601984U - Control device for variable displacement hydraulic pump - Google Patents
Control device for variable displacement hydraulic pumpInfo
- Publication number
- JPS601984U JPS601984U JP9325483U JP9325483U JPS601984U JP S601984 U JPS601984 U JP S601984U JP 9325483 U JP9325483 U JP 9325483U JP 9325483 U JP9325483 U JP 9325483U JP S601984 U JPS601984 U JP S601984U
- Authority
- JP
- Japan
- Prior art keywords
- displacement hydraulic
- variable displacement
- hydraulic pump
- control device
- pressure 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.)
- Granted
Links
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図は従来例におけるエンジン出力とのマツチング状
態を示す表口、第２図は本考案の実施例を示す全体線図
的説明図、第３図は要部の詳細断面図、第４図は可変ポ
ンプの吸収トルクを示す表口、第５図は本考案における
エンジン出力とのマツチング状態を示す表口である。
Ｐ□、Ｐ２は可変容量型油圧ポンプ、Ｐ３は制御用ポン
プ、Ｅはエンジン、４はアクチュエータ、１５ハ可変式
トルクコントロールバルブ。Fig. 1 is a front view showing the matching state with the engine output in a conventional example, Fig. 2 is an explanatory overall diagram showing an embodiment of the present invention, Fig. 3 is a detailed sectional view of the main part, Fig. 4 5 is a table showing the absorption torque of the variable pump, and FIG. 5 is a table showing the matching state with the engine output in the present invention. P□, P2 are variable displacement hydraulic pumps, P3 is a control pump, E is an engine, 4 is an actuator, and 15 is a variable torque control valve.
Claims (1)
２の吐出圧油をアクチュエータ４に供給すると共に、前
記可変容量型油圧ポンプＰ□、Ｐ２の吐出量を可変式ト
ルクコントロールバルブ１５よりの出力圧油で制御する
ように構成し、該可変式トルクコントロールバルブ１５
を、エンジンノ設定出力状態が中間の時には最大の時よ
りも出力圧油を大クシ、ローアイドル時には最大の時よ
りも出力圧油を小さくするように、前記設定出力状態に
応じて制御する構造としたことを特徴とする可変容量型
油圧ポンプの制御装置。Variable displacement hydraulic pump P1 driven by engine E. P
2 is supplied to the actuator 4, and the discharge amount of the variable displacement hydraulic pumps P□, P2 is controlled by the output pressure oil from the variable torque control valve 15, and the variable torque control valve 15
A structure that controls the output pressure oil according to the set output state so that when the set output state of the engine is in the middle, the output pressure oil is made larger than when it is at the maximum, and when the engine is at low idle, the output pressure oil is made smaller than when it is at the maximum. A control device for a variable displacement hydraulic pump, characterized by the following.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9325483U JPS601984U (en) | 1983-06-20 | 1983-06-20 | Control device for variable displacement hydraulic pump |
| US06/621,555 US4600364A (en) | 1983-06-20 | 1984-06-18 | Fluid operated pump displacement control system |
| DE19843422880 DE3422880A1 (en) | 1983-06-20 | 1984-06-20 | FLUID ACTUATED DEVICE FOR CONTROLLING THE DISPLACEMENT OF A PUMP |
| GB08415772A GB2143058B (en) | 1983-06-20 | 1984-06-20 | Fluid operated pump displacement control/system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9325483U JPS601984U (en) | 1983-06-20 | 1983-06-20 | Control device for variable displacement hydraulic pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS601984U true JPS601984U (en) | 1985-01-09 |
| JPH0130634Y2 JPH0130634Y2 (en) | 1989-09-19 |
Family
ID=30223970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9325483U Granted JPS601984U (en) | 1983-06-20 | 1983-06-20 | Control device for variable displacement hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS601984U (en) |
-
1983
- 1983-06-20 JP JP9325483U patent/JPS601984U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0130634Y2 (en) | 1989-09-19 |
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