JPS63202567U - - Google Patents
Info
- Publication number
- JPS63202567U JPS63202567U JP9499787U JP9499787U JPS63202567U JP S63202567 U JPS63202567 U JP S63202567U JP 9499787 U JP9499787 U JP 9499787U JP 9499787 U JP9499787 U JP 9499787U JP S63202567 U JPS63202567 U JP S63202567U
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- diaphragm
- rotor
- pressure
- communicate
- 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
- 239000012530 fluid Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
Description
第１図、第２図は本考案の実施例を示す図、第
３図は、第１図―矢視断面図、第４図は本考
案ポンプ装置の流量特性を示す図、第５図は変形
例を示す図である。
１０……ハウジング、１４……ロータ、１６…
…回転軸、２０……吸入路、２４……連通口、２
５……第１圧力室、２６……第２圧力室、２７…
…ダイヤフラム、２８……オリフイス、２９……
スプリング、３１……絞り突起。
Fig. 1 and Fig. 2 are diagrams showing an embodiment of the present invention, Fig. 3 is a sectional view taken from Fig. 1 - arrow direction, Fig. 4 is a diagram showing the flow rate characteristics of the pump device of the present invention, and Fig. 5 is a diagram showing an embodiment of the present invention. It is a figure showing a modification. 10...Housing, 14...Rotor, 16...
...Rotating shaft, 20...Suction passage, 24...Communication port, 2
5...First pressure chamber, 26...Second pressure chamber, 27...
...Diaphragm, 28...Orifice, 29...
Spring, 31...Aperture protrusion.
Claims (1)
ロータを備え、このロータの中心軸方向に前記ロ
ータの一端に開口して流体槽に連通する吸入路を
形成したポンプ装置において、前記ロータが回転
することにより吐出される圧油を送出する吐出経
路より前記吸入路へ連通口を設け、前記吐出経路
にはダイヤフラムを設けて両側にこれによつて密
封分離された２つの圧力室を形成するとともにこ
のダイヤフラムの一側面に形成された第２の圧力
室に前記ダイヤフラムを第１の作動室側に押圧し
て前記連通口を閉塞するように作用するスプリン
グを介挿し、また前記ダイヤフラムに前記第１と
第２の圧力室とを連通する複数のオリフイスを形
成し、このダイヤフラムを両端の流体圧力差に応
答して第１の圧力室と吸入路とを連通するように
変位させるとともに前記複数のオリフイスの開口
面積を変化させる絞り突部を前記第２の圧力室に
形成したことを特徴とするポンプ装置。 In a pump device comprising a rotor on which a number of vanes are slidably mounted in a radial direction, and a suction path opening at one end of the rotor in the direction of the central axis of the rotor and communicating with a fluid tank, the rotor rotates. A communication port is provided from the discharge path for sending out the pressure oil discharged by the above-mentioned suction path, and a diaphragm is provided in the discharge path to form two pressure chambers sealed and separated on both sides. A spring that acts to press the diaphragm toward the first working chamber and close the communication port is inserted into a second pressure chamber formed on one side of the diaphragm. A plurality of orifices are formed to communicate with the first pressure chamber and the second pressure chamber, and the diaphragm is displaced so as to communicate with the first pressure chamber and the suction passage in response to a fluid pressure difference between both ends. A pump device characterized in that a throttle protrusion that changes an opening area of the second pressure chamber is formed in the second pressure chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9499787U JPS63202567U (en) | 1987-06-19 | 1987-06-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9499787U JPS63202567U (en) | 1987-06-19 | 1987-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63202567U true JPS63202567U (en) | 1988-12-27 |
Family
ID=30959030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9499787U Pending JPS63202567U (en) | 1987-06-19 | 1987-06-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63202567U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010090843A (en) * | 2008-10-09 | 2010-04-22 | Mikuni Corp | Pump |
-
1987
- 1987-06-19 JP JP9499787U patent/JPS63202567U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010090843A (en) * | 2008-10-09 | 2010-04-22 | Mikuni Corp | Pump |
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