JPS6483872A - Controlling method for nonpulsating pump - Google Patents
Controlling method for nonpulsating pumpInfo
- Publication number
- JPS6483872A JPS6483872A JP24072987A JP24072987A JPS6483872A JP S6483872 A JPS6483872 A JP S6483872A JP 24072987 A JP24072987 A JP 24072987A JP 24072987 A JP24072987 A JP 24072987A JP S6483872 A JPS6483872 A JP S6483872A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- pressure
- starting
- phase difference
- speed changeover
- 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
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Fluid Pressure (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
PURPOSE:To restrain the extent of pressure pulsation to a little, since a pump has started by controlling a phase difference in driving patterns in each pump plunger in a way of properly handling a pressure detecting signal of composite discharge fluid, and enabling the phase compensation of plunger speed from immediately after the pump starting. CONSTITUTION:A two-throw nonpulsating pump suitable for liquid chromatographing or the like has two plungers 8, 9 to be reciprocated by operation of a pulse motor 1 via a transmission mechanism. In this case, there is provided with a pressure sensor 20 which detects pressure in composite discharge fluid, and the output signal is inputted into a microcomputer 24. A phase difference in driving patterns of these plungers 8, 9 is shifted in adding speed changeover starting time to real time at immediately after pump starting. On the other hand, afterward the phase difference is compensated in adding or subtracting the value multiplying a constant to measuring time ranging from speed changeover starting time to a peak position of pressure pulsation to or from the speed changeover starting time according to an increase or decrease state of pressure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24072987A JPS6483872A (en) | 1987-09-28 | 1987-09-28 | Controlling method for nonpulsating pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24072987A JPS6483872A (en) | 1987-09-28 | 1987-09-28 | Controlling method for nonpulsating pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6483872A true JPS6483872A (en) | 1989-03-29 |
Family
ID=17063836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24072987A Pending JPS6483872A (en) | 1987-09-28 | 1987-09-28 | Controlling method for nonpulsating pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6483872A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006284556A (en) * | 2005-03-31 | 2006-10-19 | Agilent Technol Inc | Solvent supply accompanied with correction of piston motion |
JP2009543978A (en) * | 2006-07-18 | 2009-12-10 | プルサール テクノロジーズ | Long life pump unit |
-
1987
- 1987-09-28 JP JP24072987A patent/JPS6483872A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006284556A (en) * | 2005-03-31 | 2006-10-19 | Agilent Technol Inc | Solvent supply accompanied with correction of piston motion |
US8297936B2 (en) | 2005-03-31 | 2012-10-30 | Agilent Technologies, Inc. | Compensating temperature-induced errors during piston movement |
JP2009543978A (en) * | 2006-07-18 | 2009-12-10 | プルサール テクノロジーズ | Long life pump unit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU5526594A (en) | Method and device for automatic injection of an additive into the fuel tank of a motor vehicle | |
BR8207210A (en) | COMPRESSOR DRIVE SYSTEM | |
JPS6477791A (en) | Water supply system using variable speed pump | |
JPS6483872A (en) | Controlling method for nonpulsating pump | |
GB1505521A (en) | Liquid chromatography apparatus and method | |
JPS5765822A (en) | Control of driving system containing internal combustion engine and hydraulic pump | |
EP0050296B1 (en) | A pulsation-free volumetric pump | |
GB991766A (en) | Improvements in or relating to apparatus for measuring liquids | |
JPS6445984A (en) | Control method for no-pulsation pump | |
JPS6477781A (en) | Improved plate valve for internal gear device | |
JPS6415476A (en) | Control method for non-pulsating pump | |
JPS6456976A (en) | Fixed pressure control device for fluid feed pump | |
JPS5775833A (en) | Method and apparatus for preventing overload in injection device | |
JPS6432841A (en) | Electronic hemomanometer | |
JPS6473233A (en) | Checking of liquid leakage for hydraulic circuit | |
EP0504401A4 (en) | ||
JPS57201766A (en) | Power steering gear | |
JPS60113149A (en) | High-pressure metering pump for liquid chromatography | |
JPS56159524A (en) | Fuel controller for diesel engine | |
SU1158289A1 (en) | Arrangement for casting melt | |
JPS5698582A (en) | Plunger pump | |
JPS6435170A (en) | Hydraulic drive device | |
JPS611862A (en) | Everytime injection gauge | |
JPS55156820A (en) | Controlling method for transporting volume | |
SU943199A1 (en) | Remotely sontrooled filling station pump |