JPH0444480U - - Google Patents
Info
- Publication number
- JPH0444480U JPH0444480U JP8681090U JP8681090U JPH0444480U JP H0444480 U JPH0444480 U JP H0444480U JP 8681090 U JP8681090 U JP 8681090U JP 8681090 U JP8681090 U JP 8681090U JP H0444480 U JPH0444480 U JP H0444480U
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- plunger
- hole
- suction port
- closed
- 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
- 239000007788 liquid Substances 0.000 claims description 43
Landscapes
- Reciprocating Pumps (AREA)
Description
【図面の簡単な説明】
第１図は、本考案に係わる往復ポンプの一実施
例を示す（駆動機構省略）斜視図、第２図は、上
記実施例を示す分解斜視図、第３図は、上記実施
例のシリンダーを示す断面図、第４図は、上記実
施例のシリンダーを進めて示す断面図、第５図は
、公知の往復ポンプを示す断面図である。
１……往復ポンプ、１０……シリンダー、１１
，１１′……液体吐出し口、１２，１２′……液
体吸込み口、１１１，１１１′，１２１，１２１
′……逆止め弁、２０……プランジヤー、２１，
２２……逆止め弁、２３，２４……進液孔、２５
……ゴムリング、２６，２７……出液孔、３０…
…液体導出板、３１……導出口、３２……孔口、
４０……液体導入板、４１……導入口、４２……
孔口。[Brief Description of the Drawings] Fig. 1 is a perspective view showing an embodiment of the reciprocating pump according to the present invention (driving mechanism omitted), Fig. 2 is an exploded perspective view showing the above embodiment, and Fig. 3 is a perspective view showing an embodiment of the reciprocating pump according to the present invention. , FIG. 4 is a sectional view showing the cylinder of the above embodiment, and FIG. 5 is a sectional view showing a known reciprocating pump. 1... Reciprocating pump, 10... Cylinder, 11
, 11'...Liquid discharge port, 12, 12'...Liquid suction port, 111, 111', 121, 121
'...Check valve, 20...Plunger, 21,
22...Check valve, 23, 24...Liquid advance hole, 25
...Rubber ring, 26, 27...Liquid drain hole, 30...
...liquid outlet plate, 31...outlet, 32...hole,
40...Liquid introduction plate, 41...Introduction port, 42...
hole mouth.
Claims (1)
れのシリンダーにプランジヤーが配置されてある
往復ポンプであつて、各シリンダーの前端に第一
液体吸込み口と第一液体吐出し口が設けられ、各
シリンダーの後端に第二液体吸込み口と第二液体
吐出し口が設けられ；プランジヤーが往動する時
に、上記第一液体吸込み口を閉鎖して上記第一液
体吐出し口より液体を吐出すと同時に、上記第二
液体吐出し口を閉鎖して上記第二液体吸込口より
液体を吸込み；プランジヤーが復動する時に、上
記第二液体吸込み口を閉鎖して上記第二液体吐出
し口より液体を吐出すと同時に、上記第一液体吐
出し口を閉鎖して上記第一液体吸込口より液体を
吸込むことができるようにしたことを特徴とする
往復ポンプ。 (2) 上記複数個のシリンダーの第一及び第二液
体吐出し口が液体導出機構に接続され、上記複数
個のシリンダーの第一及び第二液体吸込み口が液
体導入機構に接続されたことを特徴とする前記請
求項(1)の往復ポンプ。 (3) 上記プランジヤーが中空状に形成され、そ
の前端面には、該プランジヤーの中空状内部まで
延んだ進液孔が設けられ、その前端面に近接した
外周面には、該プランジヤーの中空状内部まで延
んだ出液孔が設けられ、通常、上記進液孔が逆止
め弁により閉鎖され、上記プランジヤーが往動す
る場合、上記閉鎖を解除して上記進液孔を開放し
、しかも該進液孔を経由して該プランジヤーの内
部に進入した液体を上記出液孔から導出すること
ができるようにしたことを特徴とする前記請求項
(1)，(2)の往復ポンプ。 (4) 上記プランジヤーが中空状に形成され、そ
の後端面には、該プランジヤーの中空状内部まで
延んだ進液孔が設けられ、その後端面に近接した
外周面には、該プランジヤーの中空状内部まで延
んだ出液孔が設けられ、通常、上記進液孔が逆止
め弁により閉鎖され、上記プランジヤーが復動す
る場合、上記閉鎖を解除して上記進液孔を開放し
、しかも該進液孔を経由して該プランジヤーの内
部に進入した液体を上記出液孔から導出すること
がごきるようにしたことを特徴とする前記請求項
(1)〜(3)のいずれかの往復ポンプ。[Claims for Utility Model Registration] (1) A reciprocating pump having a plurality of cylinders arranged in parallel, each cylinder having a plunger disposed therein, the front end of each cylinder having a first liquid suction port and a first liquid suction port. A liquid discharge port is provided, and a second liquid suction port and a second liquid discharge port are provided at the rear end of each cylinder; when the plunger moves forward, the first liquid suction port is closed and the first liquid suction port is closed. At the same time the liquid is discharged from the liquid discharge port, the second liquid discharge port is closed and the liquid is sucked from the second liquid suction port; when the plunger moves back, the second liquid suction port is closed. The reciprocating pump is characterized in that the liquid is discharged from the second liquid discharge port, and at the same time, the first liquid discharge port is closed so that the liquid can be sucked from the first liquid suction port. . (2) The first and second liquid discharge ports of the plurality of cylinders are connected to the liquid ejection mechanism, and the first and second liquid suction ports of the plurality of cylinders are connected to the liquid introduction mechanism. The reciprocating pump according to claim 1, characterized in that: (3) The plunger is formed in a hollow shape, and the front end surface thereof is provided with a liquid advancement hole extending to the hollow interior of the plunger, and the outer circumferential surface close to the front end surface is provided with a hollow hole of the plunger. A liquid ejection hole extending to the inside of the shape is provided, and the liquid ejection hole is normally closed by a check valve, and when the plunger moves forward, the closure is released and the liquid ejection hole is opened. The above claim characterized in that the liquid that has entered the inside of the plunger via the liquid inlet hole can be led out from the liquid outlet hole.
(1) and (2) reciprocating pumps. (4) The plunger is formed in a hollow shape, and the rear end face is provided with a liquid advancement hole extending to the hollow interior of the plunger, and the outer circumferential face close to the rear end face is provided with a liquid advancement hole in the hollow interior of the plunger. Normally, the liquid advancing hole is closed by a check valve, and when the plunger moves back, the closing is released and the liquid advancing hole is opened, and the liquid advancing hole is opened. The above claim characterized in that the liquid that has entered the interior of the plunger via the liquid hole can be led out from the liquid outlet hole.
Any of (1) to (3) reciprocating pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990086810U JP2529397Y2 (en) | 1990-08-21 | 1990-08-21 | Reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990086810U JP2529397Y2 (en) | 1990-08-21 | 1990-08-21 | Reciprocating pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0444480U true JPH0444480U (en) | 1992-04-15 |
| JP2529397Y2 JP2529397Y2 (en) | 1997-03-19 |
Family
ID=31818685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990086810U Expired - Lifetime JP2529397Y2 (en) | 1990-08-21 | 1990-08-21 | Reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2529397Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57191459U (en) * | 1981-05-28 | 1982-12-04 | ||
| JPS58214682A (en) * | 1982-06-09 | 1983-12-13 | Sumitomo Heavy Ind Ltd | Pneumatically driven hydraulic pump for rpess |
| JPS6421277U (en) * | 1987-07-29 | 1989-02-02 |
-
1990
- 1990-08-21 JP JP1990086810U patent/JP2529397Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57191459U (en) * | 1981-05-28 | 1982-12-04 | ||
| JPS58214682A (en) * | 1982-06-09 | 1983-12-13 | Sumitomo Heavy Ind Ltd | Pneumatically driven hydraulic pump for rpess |
| JPS6421277U (en) * | 1987-07-29 | 1989-02-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2529397Y2 (en) | 1997-03-19 |
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