JPS6441679A - Reciprocating pump - Google Patents
Reciprocating pumpInfo
- Publication number
- JPS6441679A JPS6441679A JP19847487A JP19847487A JPS6441679A JP S6441679 A JPS6441679 A JP S6441679A JP 19847487 A JP19847487 A JP 19847487A JP 19847487 A JP19847487 A JP 19847487A JP S6441679 A JPS6441679 A JP S6441679A
- Authority
- JP
- Japan
- Prior art keywords
- port
- suction
- piston
- face
- cylinder
- 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
Landscapes
- Reciprocating Pumps (AREA)
Abstract
PURPOSE:To aim at automatic on-off operations for both suction and discharge ports as well as to dispense with a check valve by installing these suction and discharge ports in one side of a cylinder, while forming both suction and discharge ports in a specified position on the outer circumferential surface of a piston being free of rotation and reciprocating motion. CONSTITUTION:A suction port 2 and a discharge port 3 are formed in a peripheral wall of a tubular cylinder 1 in a state of a phase angle difference being zero, and spacing an interval of size L in the vertical direction. On the other hand, an interconnecting port 7 to be interconnected to a pump chamber 17 inside the cylinder 1 is formed in a tip surface of a piston 6 fitted in this cylinder 1 free of reciprocating motion and rotation, while a suction port 8 and a discharge port 9 are formed in the specified position of an outer circumferential surface of the piston 6, and these ports 8, 9 are all interconnected to the pump chamber 17 via the interconnecting port 7. In addition, the suction port 8 is formed in a position to be face-to-face conducted to the suction port 2 at the time of retraction of the piston 6, while the discharge port 9 is set up in a position to be face-to-face conducted to the discharge port 3 at the time of advancement of the piston 6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19847487A JPS6441679A (en) | 1987-08-07 | 1987-08-07 | Reciprocating pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19847487A JPS6441679A (en) | 1987-08-07 | 1987-08-07 | Reciprocating pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6441679A true JPS6441679A (en) | 1989-02-13 |
Family
ID=16391708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19847487A Pending JPS6441679A (en) | 1987-08-07 | 1987-08-07 | Reciprocating pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6441679A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013136802A1 (en) * | 2012-03-16 | 2013-09-19 | テルモ株式会社 | Drug administration device |
KR101355387B1 (en) * | 2012-11-20 | 2014-01-27 | 주식회사 노아닉스 | Piston pump for controlling accurately flow |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58117368A (en) * | 1981-12-29 | 1983-07-12 | Mazda Motor Corp | Oil pump of engine |
JPS6151671A (en) * | 1984-08-20 | 1986-03-14 | Tokico Ltd | Magnetic disc device |
-
1987
- 1987-08-07 JP JP19847487A patent/JPS6441679A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58117368A (en) * | 1981-12-29 | 1983-07-12 | Mazda Motor Corp | Oil pump of engine |
JPS6151671A (en) * | 1984-08-20 | 1986-03-14 | Tokico Ltd | Magnetic disc device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013136802A1 (en) * | 2012-03-16 | 2013-09-19 | テルモ株式会社 | Drug administration device |
KR101355387B1 (en) * | 2012-11-20 | 2014-01-27 | 주식회사 노아닉스 | Piston pump for controlling accurately flow |
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