JPH038687U - - Google Patents
Info
- Publication number
- JPH038687U JPH038687U JP6769989U JP6769989U JPH038687U JP H038687 U JPH038687 U JP H038687U JP 6769989 U JP6769989 U JP 6769989U JP 6769989 U JP6769989 U JP 6769989U JP H038687 U JPH038687 U JP H038687U
- Authority
- JP
- Japan
- Prior art keywords
- cam ring
- pressure
- spring
- working chamber
- 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.)
- Pending
Links
- 239000010720 hydraulic oil Substances 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
Description
第１〜３図は本考案に係る可変容量ベーンポン
プの一実施例を示す図であり、第１図はその全体
構成図、第２図はその油圧制御プログラムのフロ
ーチヤート、第３図はそのデユーテイ比率と制御
油圧との関係を示す特性図、第４図は従来の可変
容量ベーンポンプを示すその全体構成図である。
２１…カムリング、２２……ロータ、２４……
作動室、２５……ベーン、２７……スプリング、
２８……コントロールピストン、｛３１……デユ
ーテイ弁、３３……コントロールユニツト｝（制
御油圧供給手段）、３２……圧力センサ、３８…
…オリフイス（制御油圧供給手段）。
Figures 1 to 3 are diagrams showing an embodiment of the variable displacement vane pump according to the present invention. Figure 1 is its overall configuration, Figure 2 is a flowchart of its hydraulic control program, and Figure 3 is its duty cycle. FIG. 4 is a characteristic diagram showing the relationship between ratio and control oil pressure, and is an overall configuration diagram showing a conventional variable displacement vane pump. 21...Cam ring, 22...Rotor, 24...
Working chamber, 25... vane, 27... spring,
28... Control piston, {31... Duty valve, 33... Control unit} (control hydraulic pressure supply means), 32... Pressure sensor, 38...
...Orifice (controlled hydraulic pressure supply means).
Claims (1)
るよう偏心して収装され、カムリングの内周面に
摺接する複数のベーンが放射方向に出没するよう
回転して作動室から外部に作動油を吐出するロー
タと、カムリングおよびロータの偏心量を所定値
に保つようカムリングをその軸直角方向に付勢す
るスプリングと、制御油圧に応じて前記偏心量を
変化させるようカムリングをスプリングと反対方
向に付勢するコントロールピストンと、を備えた
可変容量ベーンポンプにおいて、前記作動室から
吐出される作動油の圧力を検出する圧力センサと
、該圧力センサの検出結果に基づき、前記制御油
圧を調整してコントロールピストンに供給する制
御油圧供給手段と、を設けたことを特徴とする可
変容量ベーンポンプ。 A cam ring and a plurality of vanes that are eccentrically housed in the cam ring to define a working chamber and that slide in contact with the inner peripheral surface of the cam ring rotate in a radial direction to discharge hydraulic oil from the working chamber to the outside. A rotor, a cam ring, and a spring that biases the cam ring in a direction perpendicular to its axis so as to maintain the eccentricity of the rotor at a predetermined value, and a spring that biases the cam ring in the opposite direction to the spring so as to change the eccentricity according to control oil pressure. A variable capacity vane pump comprising a control piston, a pressure sensor that detects the pressure of hydraulic oil discharged from the working chamber, and a control hydraulic pressure that is adjusted and supplied to the control piston based on the detection result of the pressure sensor. A variable capacity vane pump characterized in that it is provided with a controlled hydraulic pressure supply means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6769989U JPH038687U (en) | 1989-06-09 | 1989-06-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6769989U JPH038687U (en) | 1989-06-09 | 1989-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH038687U true JPH038687U (en) | 1991-01-28 |
Family
ID=31601503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6769989U Pending JPH038687U (en) | 1989-06-09 | 1989-06-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH038687U (en) |
-
1989
- 1989-06-09 JP JP6769989U patent/JPH038687U/ja active Pending
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