JPS60145287U - Variable displacement pump flow control device - Google Patents
Variable displacement pump flow control deviceInfo
- Publication number
- JPS60145287U JPS60145287U JP3235984U JP3235984U JPS60145287U JP S60145287 U JPS60145287 U JP S60145287U JP 3235984 U JP3235984 U JP 3235984U JP 3235984 U JP3235984 U JP 3235984U JP S60145287 U JPS60145287 U JP S60145287U
- Authority
- JP
- Japan
- Prior art keywords
- variable displacement
- displacement pump
- control device
- piston
- flow control
- 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図は従来例の断面図、−第２図はその要部拡大図、
第３図は従来の流量及び出力の制御関係図、第４図は本
考案の実施例の説明線図、第５図はその要部の拡大図、
第６図は本考案のものの流量及び出力の制御関係である
。
１・・・可変容量ポンプ、２・・・サーボ弁、３・・・
コントロールピストン、４・・・制御ばね、５・・・第
１ピストン、６・・・第２ピストン、７・・・第２ばね
。Figure 1 is a sectional view of the conventional example, - Figure 2 is an enlarged view of its main parts,
Fig. 3 is a conventional flow rate and output control relationship diagram, Fig. 4 is an explanatory diagram of the embodiment of the present invention, Fig. 5 is an enlarged view of the main part,
FIG. 6 shows the flow rate and output control relationship of the present invention. 1... Variable displacement pump, 2... Servo valve, 3...
Control piston, 4... Control spring, 5... First piston, 6... Second piston, 7... Second spring.
Claims (1)
コントロールピストン３に作用する該ポンプ１の吐出圧
で可変すると共に該サーボ弁２の作動を制御ばね４に抗
して作用させた前記吐出圧で摺動する第１ビントン５と
、同じく制御ばね４に抗して作用する指令圧で摺動する
第２ピストン６とで制御する式のものに於て、該第２ピ
ストン６に指令圧に抗する第２ばね７を設けて成る可変
容量ポンプの流量制御装置。The pump flow rate of the variable displacement pump 1 is varied by the discharge pressure of the pump 1 acting on the control piston 3 via the servo valve 2, and the servo valve 2 is actuated against the control spring 4. In a type of control using a first piston 5 that slides under pressure and a second piston 6 that also slides under command pressure acting against the control spring 4, the command pressure is applied to the second piston 6. A flow rate control device for a variable displacement pump comprising a second spring 7 that resists.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3235984U JPS60145287U (en) | 1984-03-08 | 1984-03-08 | Variable displacement pump flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3235984U JPS60145287U (en) | 1984-03-08 | 1984-03-08 | Variable displacement pump flow control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60145287U true JPS60145287U (en) | 1985-09-26 |
| JPH0220474Y2 JPH0220474Y2 (en) | 1990-06-04 |
Family
ID=30533800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3235984U Granted JPS60145287U (en) | 1984-03-08 | 1984-03-08 | Variable displacement pump flow control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60145287U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654982A (en) * | 1979-10-11 | 1981-05-15 | Kawasaki Heavy Ind Ltd | Controller for variable capacity pump |
| JPS5835689U (en) * | 1981-09-02 | 1983-03-08 | 内田油圧機器工業株式会社 | Flow control device for constant output variable displacement hydraulic pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835689B2 (en) * | 1977-12-26 | 1983-08-04 | 旭精密株式会社 | drafting machine |
-
1984
- 1984-03-08 JP JP3235984U patent/JPS60145287U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5654982A (en) * | 1979-10-11 | 1981-05-15 | Kawasaki Heavy Ind Ltd | Controller for variable capacity pump |
| JPS5835689U (en) * | 1981-09-02 | 1983-03-08 | 内田油圧機器工業株式会社 | Flow control device for constant output variable displacement hydraulic pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0220474Y2 (en) | 1990-06-04 |
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