JPH0482378U - - Google Patents
Info
- Publication number
- JPH0482378U JPH0482378U JP12504890U JP12504890U JPH0482378U JP H0482378 U JPH0482378 U JP H0482378U JP 12504890 U JP12504890 U JP 12504890U JP 12504890 U JP12504890 U JP 12504890U JP H0482378 U JPH0482378 U JP H0482378U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- receiving chamber
- pressure receiving
- servo piston
- supplies
- 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
- 238000006073 displacement reaction Methods 0.000 claims 1
Description
第１図は本考案の実施例を示す断面図、第２図
は従来の断面図である。
１はハウジング、２は軸、３はシリンダーブロ
ツク、４はシリンダー孔、５はピストン、７はピ
ストンシユー、８は斜板、２０はサーボピストン
、２４，２５は第１・第２受圧室、３０はスプー
ル孔、３２はスプール、３５は制御弁。
FIG. 1 is a cross-sectional view showing an embodiment of the present invention, and FIG. 2 is a conventional cross-sectional view. 1 is a housing, 2 is a shaft, 3 is a cylinder block, 4 is a cylinder hole, 5 is a piston, 7 is a piston shoe, 8 is a swash plate, 20 is a servo piston, 24 and 25 are first and second pressure receiving chambers, 30 is a A spool hole, 32 is a spool, and 35 is a control valve.
Claims (1)
て左右に移動するサーボピストン２０を斜板８に
連結し、該サーボピストン２０の軸心に穿孔した
スプール孔３０内にスプール３２を嵌挿して第１
受圧室２４内の圧油を減圧して第２受圧室２５に
供給する制御弁３５とし、その第１受圧室２４ポ
ンプ圧を供給すると共に、制御弁３５のセツト圧
をサーボピストン２０が容量減方向に作動すると
高くする構成としたことを特徴とする可変ポンプ
の容量制御装置。 A servo piston 20 that moves left and right due to the differential pressure between the first pressure receiving chamber 24 and the second pressure receiving chamber 25 is connected to the swash plate 8, and a spool 32 is inserted into a spool hole 30 bored in the axis of the servo piston 20. Insert the first
The control valve 35 reduces the pressure of the pressure oil in the pressure receiving chamber 24 and supplies it to the second pressure receiving chamber 25, and the servo piston 20 supplies the pump pressure to the first pressure receiving chamber 24, and the set pressure of the control valve 35 is reduced in volume by the servo piston 20. 1. A variable pump displacement control device characterized by having a configuration in which the volume increases when operated in a direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12504890U JPH0482378U (en) | 1990-11-29 | 1990-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12504890U JPH0482378U (en) | 1990-11-29 | 1990-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0482378U true JPH0482378U (en) | 1992-07-17 |
Family
ID=31872668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12504890U Pending JPH0482378U (en) | 1990-11-29 | 1990-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0482378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018235573A1 (en) * | 2017-06-22 | 2018-12-27 | 株式会社小松製作所 | Hydraulic pump and motor |
-
1990
- 1990-11-29 JP JP12504890U patent/JPH0482378U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018235573A1 (en) * | 2017-06-22 | 2018-12-27 | 株式会社小松製作所 | Hydraulic pump and motor |
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