JPH0228583U - - Google Patents
Info
- Publication number
- JPH0228583U JPH0228583U JP10780588U JP10780588U JPH0228583U JP H0228583 U JPH0228583 U JP H0228583U JP 10780588 U JP10780588 U JP 10780588U JP 10780588 U JP10780588 U JP 10780588U JP H0228583 U JPH0228583 U JP H0228583U
- Authority
- JP
- Japan
- Prior art keywords
- fixed cylinder
- suction
- piston
- eccentric cam
- port
- 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 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Reciprocating Pumps (AREA)
Description
第１図は本考案第１実施例の固定シリンダ型固
定シリンダ型ラジアルピストンポンプの要部断面
図、第２図は第１実施例の固定シリンダ型ラジア
ルピストンポンプの全体断面図、第３図は吸入サ
イドポートの開口面積縮小変化特性を示す図、第
４図はシリンダ室の圧力特性を示す図、第５図は
吸入サイドポートの開口形状を様々に設定した場
合の開口面積変化特性を示す図、第６図は第２実
施例の吸入サイドポートを示す要部展開図、第７
図は第３実施例の吸入サイドポートを示す要部正
面図、第８図は第４実施例の吸入サイドポートを
示す要部正面図、第９図は第８図―線による
断面図である。
Ａ……固定シリンダ型ラジアルピストンポンプ
、１……ポンプケーシング、２……駆動軸、７…
…偏心カム、９……吸入室、１０……固定シリン
ダ、１１……ピストン、１２……スプリング、１
３……シリンダ室、１４……吸入ポート、１６…
…吐出ポート、１７……吐出流路、１８……デリ
バリ弁、１９……吐出溝、２０……出口ポート。
Fig. 1 is a sectional view of the main parts of a fixed cylinder type fixed cylinder type radial piston pump according to the first embodiment of the present invention, Fig. 2 is an overall sectional view of the fixed cylinder type radial piston pump according to the first embodiment, and Fig. 3 is a Figure 4 is a diagram showing the opening area reduction change characteristics of the suction side port, Figure 4 is a diagram showing the pressure characteristics of the cylinder chamber, and Figure 5 is a diagram showing the opening area change characteristics when the opening shape of the suction side port is set variously. , FIG. 6 is a developed view of the main parts showing the suction side port of the second embodiment, and FIG.
The figure is a front view of main parts showing the suction side port of the third embodiment, FIG. 8 is a front view of main parts showing the suction side port of the fourth embodiment, and FIG. 9 is a sectional view taken along the line of FIG. . A... Fixed cylinder type radial piston pump, 1... Pump casing, 2... Drive shaft, 7...
... Eccentric cam, 9 ... Suction chamber, 10 ... Fixed cylinder, 11 ... Piston, 12 ... Spring, 1
3...Cylinder chamber, 14...Suction port, 16...
...Discharge port, 17...Discharge channel, 18...Delivery valve, 19...Discharge groove, 20...Outlet port.
Claims (1)
トンを径方向に往復動させるようにし、各ピスト
ンの側部に開口された吸入サイドポートが吸入室
に連通するピストンストローク時に流体を吸入し
、吸入サイドポートが固定シリンダで閉鎖される
ピストンストローク時に吸入流体をシリンダ室内
で加圧し、この加圧流体を各ピストンの吐出ポー
トから吐出させる固定シリンダ型ラジアルピスト
ンポンプにおいて、 前記吸入サイドポートには、前記偏心カムに近
い側の開口幅が狭く偏心カムに遠い側の開口幅が
広い開口形状の吸入サイドポートを少なくとも１
個含む事を特徴とする固定シリンダ型ラジアルピ
ストンポンプ。[Scope of Claim for Utility Model Registration] Pistons in a fixed cylinder are reciprocated in the radial direction by a rotationally driven eccentric cam, and during the piston stroke, the suction side ports opened on the side of each piston communicate with the suction chamber. In a fixed cylinder type radial piston pump that sucks fluid, pressurizes the suction fluid in a cylinder chamber during a piston stroke in which a suction side port is closed by a fixed cylinder, and discharges this pressurized fluid from a discharge port of each piston. The side ports include at least one suction side port having a narrow opening width on the side close to the eccentric cam and a wide opening width on the side far from the eccentric cam.
A fixed cylinder type radial piston pump characterized by containing:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10780588U JPH0228583U (en) | 1988-08-16 | 1988-08-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10780588U JPH0228583U (en) | 1988-08-16 | 1988-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0228583U true JPH0228583U (en) | 1990-02-23 |
Family
ID=31342546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10780588U Pending JPH0228583U (en) | 1988-08-16 | 1988-08-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0228583U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5815770A (en) * | 1981-07-08 | 1983-01-29 | ツア−ンラ−トフアブリ−ク・フリ−ドリツヒスハ−フエン・アクチエンゲゼルシヤフト | Radial piston pump |
| JPS5820960A (en) * | 1981-07-31 | 1983-02-07 | Komatsu Ltd | fuel injector |
| JPS5949769B2 (en) * | 1980-09-09 | 1984-12-05 | 日立電線株式会社 | How to fix curly cable core |
-
1988
- 1988-08-16 JP JP10780588U patent/JPH0228583U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5949769B2 (en) * | 1980-09-09 | 1984-12-05 | 日立電線株式会社 | How to fix curly cable core |
| JPS5815770A (en) * | 1981-07-08 | 1983-01-29 | ツア−ンラ−トフアブリ−ク・フリ−ドリツヒスハ−フエン・アクチエンゲゼルシヤフト | Radial piston pump |
| JPS5820960A (en) * | 1981-07-31 | 1983-02-07 | Komatsu Ltd | fuel injector |
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