JPS55109778A - Constant flow pump - Google Patents
Constant flow pumpInfo
- Publication number
- JPS55109778A JPS55109778A JP1684479A JP1684479A JPS55109778A JP S55109778 A JPS55109778 A JP S55109778A JP 1684479 A JP1684479 A JP 1684479A JP 1684479 A JP1684479 A JP 1684479A JP S55109778 A JPS55109778 A JP S55109778A
- Authority
- JP
- Japan
- Prior art keywords
- ink
- chamber
- piston
- constant flow
- transfer
- 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
- Ink Jet (AREA)
- Reciprocating Pumps (AREA)
Abstract
PURPOSE: To make it possible to supply an ink at a constant rate, by a constant flow pump having a first and a second pressure chambers, the first pressure chamber being of a piston type incorporating a piston the compression time of which is shorter than the suction time, the second chamber being opposed by the first chamber to reduce the leakage.
CONSTITUTION: Negative pressure is generated through the transfer of a piston 13 of which the compression operation time is set shorter than the suction operation time. Therefore, the ball valve of an inflow valve mechanism 24 is pushed up counter to the force of a spring and a corresponding quantity of ink to the transfer distance of the piston 13 is sucked into a first pressure chamber 15 from a recovery tank 30 through a pipe 34. Negative pressure is also generated in a second pressure chamber 16 through the transfer of a diaphragm 14. Therefore, the ball valve of a inflow valve mechanism 26 opens so that the ink captured by an ink recovery gutter 8 is sucked into the chamber 16 through a pipe 28. This operation is repeated in accordance with the revolution of an eccentric cam 19 for supplyng a constant flow of ink.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1684479A JPS55109778A (en) | 1979-02-15 | 1979-02-15 | Constant flow pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1684479A JPS55109778A (en) | 1979-02-15 | 1979-02-15 | Constant flow pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55109778A true JPS55109778A (en) | 1980-08-23 |
Family
ID=11927510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1684479A Pending JPS55109778A (en) | 1979-02-15 | 1979-02-15 | Constant flow pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55109778A (en) |
-
1979
- 1979-02-15 JP JP1684479A patent/JPS55109778A/en active Pending
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