JPH01149578U - - Google Patents
Info
- Publication number
- JPH01149578U JPH01149578U JP4629588U JP4629588U JPH01149578U JP H01149578 U JPH01149578 U JP H01149578U JP 4629588 U JP4629588 U JP 4629588U JP 4629588 U JP4629588 U JP 4629588U JP H01149578 U JPH01149578 U JP H01149578U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- oil pump
- command voltage
- control amplifier
- pressure head
- 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
- 238000010586 diagram Methods 0.000 description 9
Description
第１図は本考案の実施例を示す概要図、第２図
は本考案により得られるポンプ吐出圧−吐出量特
性を示す図、第３図はポンプ吐出圧−圧力ヘツド
出力電圧特性図、第４図は流量指令電圧−圧力指
令電流特性図、第５図は圧力指令電流−減圧弁二
次圧特性図、第６図は減圧弁二次圧−ポンプ吐出
量特性図である。
１……可変吐出量油ポンプ、２……減圧弁、３
……吐出側圧油ライン、４……リリーフ弁、５…
…制御アンプ、６……圧力ヘツド、ｖ′……流量
指令電圧、ｖ……手動指令電圧、ｉ……圧力指令
電流。
Fig. 1 is a schematic diagram showing an embodiment of the present invention, Fig. 2 is a diagram showing pump discharge pressure-discharge amount characteristics obtained by the present invention, Fig. 3 is a diagram showing pump discharge pressure-pressure head output voltage characteristics, 4 is a flow rate command voltage-pressure command current characteristic diagram, FIG. 5 is a pressure command current-pressure-reducing valve secondary pressure characteristic diagram, and FIG. 6 is a pressure-reducing valve secondary pressure-pump discharge amount characteristic diagram. 1... Variable discharge amount oil pump, 2... Pressure reducing valve, 3
...Discharge side pressure oil line, 4...Relief valve, 5...
...Control amplifier, 6...Pressure head, v'...Flow rate command voltage, v...Manual command voltage, i...Pressure command current.
補正 昭６３．６．１７
図面の簡単な説明を次のように補正する。
明細書第１０頁第８行における「特性図である
。」を、「特性図、第７図は手動指令電圧−圧力
指令上限電流特性図である。」と補正する。Amendment June 17, 1981 The brief description of the drawing is amended as follows. "It is a characteristic diagram." in line 8 of page 10 of the specification is corrected to "Characteristic diagram, FIG. 7 is a manual command voltage-pressure command upper limit current characteristic diagram."
Claims (1)
ーフ弁と圧力ヘツドを接続すると共に、上記油ポ
ンプの傾転量を変える減圧弁に圧力指令電流を作
用させる制御アンプを設け、上記制御アンプに、
上記圧力ヘツドからの流量指令電圧のほかに手動
指令電圧が入力されるようにしたことを特徴とす
る油ポンプの定馬力制御装置。 A relief valve and a pressure head are connected to the discharge side pressure oil line of the variable discharge amount oil pump, and a control amplifier is provided for applying a pressure command current to a pressure reducing valve that changes the amount of tilting of the oil pump, and the control amplifier is provided with:
A constant horsepower control device for an oil pump, characterized in that a manual command voltage is input in addition to the flow command voltage from the pressure head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4629588U JPH01149578U (en) | 1988-04-07 | 1988-04-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4629588U JPH01149578U (en) | 1988-04-07 | 1988-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01149578U true JPH01149578U (en) | 1989-10-17 |
Family
ID=31272566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4629588U Pending JPH01149578U (en) | 1988-04-07 | 1988-04-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01149578U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57116187A (en) * | 1980-11-26 | 1982-07-20 | Beeesuoo Shiyutoierunkutehinik | Adjustor for variable discharge hydraulic pump |
-
1988
- 1988-04-07 JP JP4629588U patent/JPH01149578U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57116187A (en) * | 1980-11-26 | 1982-07-20 | Beeesuoo Shiyutoierunkutehinik | Adjustor for variable discharge hydraulic pump |
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