JPS6441679A - Reciprocating pump - Google Patents

Reciprocating pump

Info

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
Application number
JP19847487A
Other languages
Japanese (ja)
Inventor
Fujio Kanou
Hiroshi Kotani
Yasuo Nakai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON FEEDER KOGYO KK
NIPPON FUIIDAA KOGYO KK
Original Assignee
NIPPON FEEDER KOGYO KK
NIPPON FUIIDAA KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NIPPON FEEDER KOGYO KK, NIPPON FUIIDAA KOGYO KK filed Critical NIPPON FEEDER KOGYO KK
Priority to JP19847487A priority Critical patent/JPS6441679A/en
Publication of JPS6441679A publication Critical patent/JPS6441679A/en
Pending legal-status Critical Current

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.
JP19847487A 1987-08-07 1987-08-07 Reciprocating pump Pending JPS6441679A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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