JPS55114889A - Fluid delivery device - Google Patents

Fluid delivery device

Info

Publication number
JPS55114889A
JPS55114889A JP2163679A JP2163679A JPS55114889A JP S55114889 A JPS55114889 A JP S55114889A JP 2163679 A JP2163679 A JP 2163679A JP 2163679 A JP2163679 A JP 2163679A JP S55114889 A JPS55114889 A JP S55114889A
Authority
JP
Japan
Prior art keywords
piston
fluid
adjusting screw
driving
flow passage
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
JP2163679A
Other languages
Japanese (ja)
Inventor
Masahide Matsuyama
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.)
Seiko Epson Corp
Epson Corp
Original Assignee
Seiko Epson Corp
Epson Corp
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 Seiko Epson Corp, Epson Corp filed Critical Seiko Epson Corp
Priority to JP2163679A priority Critical patent/JPS55114889A/en
Publication of JPS55114889A publication Critical patent/JPS55114889A/en
Pending legal-status Critical Current

Links

Landscapes

  • Reciprocating Pumps (AREA)

Abstract

PURPOSE: To constantly deliver infinitesimal high-viscosity fluid by providing the flow rate adjusting screw and the flow passage switching piston to the fluid delivery device cylinder.
CONSTITUTION: During the standing by period, the hollow flow passage switching piston 14 in the cylinder 12 is pushed to the driving side by the piston returning compressing spring 13, and the fluid passage in the adjusting screw 16 is shut off from the injection needle 20 by the piston 14. When driving air is injected from the driving side B, the passage switching piston 14 is pushed to he fluid side by the driving piston 18, and the fluid pressed in from A passes through the hollow part of the piston 14, the flow passage of the cylinder 12, and the outer wall of the flow passage switching piston through the adjusting screw 16, and is delivered from the injection needle 20. The infinitesimal adjusting of the fluid adjusting mechanism is made possible by the adjusting screw 16, and once it is adjusted, it would not move and quickly responds to the pneumatic driving so that constant infinitesimal continuous delivery becomes possible.
COPYRIGHT: (C)1980,JPO&Japio
JP2163679A 1979-02-26 1979-02-26 Fluid delivery device Pending JPS55114889A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2163679A JPS55114889A (en) 1979-02-26 1979-02-26 Fluid delivery device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2163679A JPS55114889A (en) 1979-02-26 1979-02-26 Fluid delivery device

Publications (1)

Publication Number Publication Date
JPS55114889A true JPS55114889A (en) 1980-09-04

Family

ID=12060549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2163679A Pending JPS55114889A (en) 1979-02-26 1979-02-26 Fluid delivery device

Country Status (1)

Country Link
JP (1) JPS55114889A (en)

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