GB1429854A - Control of pumping apparatus - Google Patents

Control of pumping apparatus

Info

Publication number
GB1429854A
GB1429854A GB1060773A GB1060773A GB1429854A GB 1429854 A GB1429854 A GB 1429854A GB 1060773 A GB1060773 A GB 1060773A GB 1060773 A GB1060773 A GB 1060773A GB 1429854 A GB1429854 A GB 1429854A
Authority
GB
United Kingdom
Prior art keywords
pressure
drive
flow
speed
march
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.)
Expired
Application number
GB1060773A
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.)
Waters Associates Inc
Original Assignee
Waters Associates Inc
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 Waters Associates Inc filed Critical Waters Associates Inc
Publication of GB1429854A publication Critical patent/GB1429854A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00—Arrangements for controlling dynamo-electric motors of the kind having motors rotating step by step
    • H02P8/12—Control or stabilisation of current
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/005—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons
    • F04B11/0058—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons with piston speed control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/20—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/36—Control of physical parameters of the fluid carrier in high pressure liquid systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
    • G01N2030/324—Control of physical parameters of the fluid carrier of pressure or speed speed, flow rate
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
    • G01N2030/326—Control of physical parameters of the fluid carrier of pressure or speed pumps
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/26—Conditioning of the fluid carrier; Flow patterns
    • G01N30/28—Control of physical parameters of the fluid carrier
    • G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
    • G01N2030/328—Control of physical parameters of the fluid carrier of pressure or speed valves, e.g. check valves of pumps

Abstract

1429854 Automatic control of pumps WATERS ASSOCIATES Inc 5 March 1973 [6 March 1972] 10607/73 Heading G3N [Also in Divisions Fl Gl and H2] A liquid chromatography column 158 is supplied by a pump 118 driven by a motor whose speed is controlled in response to a measurement (made at 154) of the pressure of the liquid supplied to the column. The drive speed is increased with increasing pressure so as to keep the mass flow-rate substantially constant. 57 is a manifold and 156 is a "reference means" to which the flow may be partially diverted. The pressure sensor 154 comprises a Bourdon-type tube, shaped as shown, for continuous flow; the straight portion progressively interrupts light from a source falling on a photocell. The pump comprises two positive displacement devices driven via elliptical gears to produce a steady flow (see Division F1). The drive is a stepping motor controlled by a semi-conductor circuit (see Division H2). The pressure signal controls a current limiting circuit in addition to the speed, and shuts the drive off if the pressure exceeds a limit.
GB1060773A 1972-03-06 1973-03-05 Control of pumping apparatus Expired GB1429854A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00232128A US3855129A (en) 1972-03-06 1972-03-06 Novel pumping apparatus

Publications (1)

Publication Number Publication Date
GB1429854A true GB1429854A (en) 1976-03-31

Family

ID=22871976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1060773A Expired GB1429854A (en) 1972-03-06 1973-03-05 Control of pumping apparatus

Country Status (6)

Country Link
US (1) US3855129A (en)
JP (1) JPS6132620B2 (en)
CA (1) CA991950A (en)
DE (1) DE2311016C3 (en)
FR (1) FR2175029B1 (en)
GB (1) GB1429854A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144282A (en) * 1981-09-08 1985-02-27 Epson Corp Speed control device for a stepping motor

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855129A (en) 1972-03-06 1974-12-17 Waters Associates Inc Novel pumping apparatus
DE2366193C2 (en) * 1972-03-06 1984-10-11 Waters Associates, Inc., Framingham, Mass. Method and device for controlling a stepping motor
AT355544B (en) * 1974-04-26 1980-03-10 Chemie Filter Gmbh Verfahren DOSING PUMP WITH PULSATION DAMPER FOR ADJUSTING A CONSTANT PRESSURE IN THE COLUMN OF A DEVICE FOR LOW-PRESSURE LIQUID CHROMATOGRAPHY
US4045343A (en) * 1975-11-10 1977-08-30 Varian Associates, Inc. High pressure liquid chromatography system
US3985019A (en) * 1975-11-10 1976-10-12 Boehme Detlef R Liquid chromatography system with solvent proportioning
US3985021A (en) * 1975-11-10 1976-10-12 Varian Associates High performance liquid chromatography system
US4043906A (en) * 1976-03-18 1977-08-23 Varian Associates, Inc. Method and apparatus for reducing the transient effects of liquid compressibility in a liquid chromatography system
US4180375A (en) * 1977-01-21 1979-12-25 Altex Scientific, Inc. Liquid chromatography pump
USRE31608E (en) * 1977-01-21 1984-06-19 Altex Scientific, Inc. Fluid pump mechanism
US4131393A (en) * 1977-01-21 1978-12-26 Altex Scientific, Inc. Fluid pump mechanism
USRE31586E (en) * 1977-01-21 1984-05-15 Altex Scientific, Inc. Liquid chromatography pump
US4137011A (en) * 1977-06-14 1979-01-30 Spectra-Physics, Inc. Flow control system for liquid chromatographs
GB1595254A (en) * 1978-01-25 1981-08-12 Berelson R Pumping unit for dishwashing machines
DE2922689A1 (en) * 1978-06-07 1979-12-13 Magnussen Jun PUMPING DEVICE
FR2461126A1 (en) * 1978-12-15 1981-01-30 Gilson Medical Electronic Fran PISTON PUMP WITH PRECISELY ADJUSTABLE FLOW
US4281687A (en) * 1979-02-09 1981-08-04 Waters Associates, Inc. Fluid storage device
US4245963A (en) * 1979-02-09 1981-01-20 Waters Associates, Inc. Pump
US4225290A (en) * 1979-02-22 1980-09-30 Instrumentation Specialties Company Pumping system
US4294799A (en) * 1980-04-24 1981-10-13 Beckman Instruments, Inc. Temperature regulating apparatus
DE3035770C2 (en) * 1980-09-23 1984-08-16 Bruker Analytische Meßtechnik GmbH, 7512 Rheinstetten Multiple piston pump with constant delivery rate
JPS57158554A (en) * 1981-03-27 1982-09-30 Toyo Soda Mfg Co Ltd Method and device for chromatographic analysis
US4406158A (en) * 1981-09-09 1983-09-27 Isco, Inc. Apparatus and method for temperature correction of liquid chromatography
US4422942A (en) 1981-09-09 1983-12-27 Isco, Inc. Method for liquid chromatography
DE3139925A1 (en) * 1981-10-08 1983-07-14 Hewlett-Packard GmbH, 7030 Böblingen HIGH PRESSURE DOSING PUMP
GB2113315B (en) * 1982-01-11 1986-05-21 Hewlett Packard Co An improved high pressure meter pump
JPS5910064U (en) * 1982-06-29 1984-01-21 株式会社島津製作所 Liquid chromatograph liquid delivery device
JPS58181511U (en) * 1982-05-31 1983-12-03 トヨタ車体株式会社 Synthetic resin mold
JPH0631618B2 (en) * 1985-01-23 1994-04-27 株式会社日立製作所 Torque controlled hermetic compressor
US4733152A (en) * 1986-03-10 1988-03-22 Isco, Inc. Feedback system
US4917575A (en) * 1986-05-02 1990-04-17 The Dow Chemical Company Liquid chromatographic pump
FR2608225B1 (en) * 1986-12-10 1989-02-17 Imaje Sa MULTIPLE FUNCTION CELL HAVING A VARIABLE VOLUME CHAMBER, AND FLUID SUPPLY CIRCUIT FOR AN INK JET PRINTHEAD PROVIDED THEREWITH
FR2619753B2 (en) * 1986-12-10 1990-08-31 Imaje Sa FLUID SUPPLY CIRCUIT OF A PRINTHEAD EQUIPPED WITH A MULTIFUNCTIONAL CELL COMPRISING A VARIABLE VOLUME CHAMBER
JPH06349B2 (en) * 1989-02-10 1994-01-05 工業技術院長 Mold for molding fiber-reinforced thermoplastic synthetic resin
US4974628A (en) * 1989-06-08 1990-12-04 Beckman Instruments, Inc. Check valve cartridges with controlled pressure sealing
EP0433649A1 (en) * 1989-11-17 1991-06-26 ASKOLL S.p.A. Fluid metering pump
US5587082A (en) * 1995-06-07 1996-12-24 Teraoka; Iwao High osmotic pressure chromatography
JP3417208B2 (en) * 1996-04-23 2003-06-16 株式会社島津製作所 Automatic sample injection device
US6484589B1 (en) * 2001-05-30 2002-11-26 Senx Technology Piezoelectric transducer assemblies and methods for their use
US6997683B2 (en) * 2003-01-10 2006-02-14 Teledyne Isco, Inc. High pressure reciprocating pump and control of the same
US20040205422A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Signal to noise ratio in chromatography
US20040202575A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Signal to noise ratio in chromatography
US20040204864A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Signal to noise ratio in chromatography
US20040204866A1 (en) * 2003-04-09 2004-10-14 Allington Robert W. Method and apparatus to enhance the signal to noise ratio in chromatography
KR100524726B1 (en) * 2003-08-14 2005-10-31 엘지전자 주식회사 Driving circuit of reciprocating compressor
WO2007121230A2 (en) * 2006-04-12 2007-10-25 Waters Investments Limited Active valve and methods of operation thereof
WO2008014306A2 (en) * 2006-07-25 2008-01-31 Waters Investments Limited Compliant-seal check valve
DE102010039943A1 (en) * 2010-08-30 2012-03-01 Robert Bosch Gmbh Method for controlling a pressure supply unit for a fluid aggregate and corresponding fluid aggregate
CN106975117A (en) 2011-09-21 2017-07-25 拜耳医药保健有限责任公司 Continuous multiple fluid pump device, driving and actuating system and method
US9226624B2 (en) * 2011-10-19 2016-01-05 Bobrick Washroom Equipment, Inc. Automated fluid dispensing system
CN102587090A (en) * 2012-03-22 2012-07-18 无锡小天鹅股份有限公司 Putting device capable of overcoming viscosity change of detergent and control method thereof
CH706929A1 (en) * 2012-09-11 2014-03-14 Werner Doebelin Ultra-high-pressure syringe pump system for the gradient operation in the field of HPLC.
JP6749918B2 (en) 2015-01-09 2020-09-02 バイエル・ヘルスケア・エルエルシーＢａｙｅｒ ＨｅａｌｔｈＣａｒｅ ＬＬＣ Multi-fluid delivery system with multi-use disposable set and features thereof
CN105546046B (en) * 2016-01-28 2018-03-27 北京星达科技发展有限公司 Non-circular gear group and pump drive mechanism
CN107327382A (en) * 2016-04-29 2017-11-07 殷图源 A kind of Novel plunger pump
CN108361168A (en) * 2018-02-05 2018-08-03 南京航空航天大学 It is staggered the time based on dual piston the continuous and stable type metering pump of compensation policy
DE102018110918A1 (en) * 2018-05-07 2019-11-07 Lutz Holding GmbH Method for operating a double diaphragm pump

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1911294U (en) 1964-12-16 1965-03-04 Bollhoff & Co LOCKING DEVICE.
US3411058A (en) 1965-01-19 1968-11-12 Superior Electric Co Acceleration deceleration control circuit for a stepping motor
US3488030A (en) 1966-08-17 1970-01-06 Halliburton Co Electrical motor operated valve
US3446057A (en) * 1966-10-14 1969-05-27 Varian Associates Method and apparatus for chromatography
US3466517A (en) 1966-12-15 1969-09-09 Superior Electric Co Numerically controlled motor system
DE2121433A1 (en) 1970-04-30 1971-12-09 Ultra Electronics Ltd Method and device for operating a stepping motor
DE2032875A1 (en) 1970-07-02 1972-01-27 Superior Electric Co Stepper motor control circuit
US3855129A (en) 1972-03-06 1974-12-17 Waters Associates Inc Novel pumping apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144282A (en) * 1981-09-08 1985-02-27 Epson Corp Speed control device for a stepping motor

Also Published As

Publication number Publication date
FR2175029A1 (en) 1973-10-19
JPS6132620B2 (en) 1986-07-28
DE2311016B2 (en) 1978-11-23
FR2175029B1 (en) 1974-05-17
DE2311016A1 (en) 1973-09-20
US3855129B1 (en) 1985-10-08
CA991950A (en) 1976-06-29
DE2311016C3 (en) 1979-07-26
JPS4947908A (en) 1974-05-09
US3855129A (en) 1974-12-17

Similar Documents

Publication Publication Date Title
GB1429854A (en) Control of pumping apparatus
GB1326372A (en) Fluid flow control apparatus
FR2370977A1 (en)
GB1252183A (en)
ATE39799T1 (en) PERISTALTIC PUMP.
EP0104896A3 (en) Flowrate control for a blood flow system
DK0973082T3 (en) Process for regulating fluid pressure
FR2286960A1 (en) PROCESS FOR ADJUSTING THE FLOW OF A PUMP EQUIPPED WITH AN ADJUSTABLE DIFFUSER WITH MOVING BLADES
GB1241349A (en) Improvements in and relating to devices for measuring liquid flow rates
ATE71435T1 (en) LIQUID PUMP WITH VARIABLE FLOW.
ES429175A1 (en) Method and device for controlling fluid pressure
DK0444269T3 (en) Method for controlling the performance of a pump
GB1215865A (en) A method of operating a sedimentation apparatus
FR2356014A1 (en) IMPROVEMENTS TO LIQUID FUEL INJECTION PUMPS
BE805125A (en) FLUID SUPPLY DEVICE BY AT LEAST ONE CONSTANT FLOW PUMP AND ONE VARIABLE FLOW PUMP DRIVEN BY A SINGLE DRIVE SHAFT
FR2375467A1 (en) HYDRAULIC CONTROL PROCESS AND DEVICE
DK143167C (en) PUMP MECHANISM FOR REGULATING THE FLOW SPEED OF LIQUID IN A PIPE SYSTEM
GB2021290A (en) Automatic flow control
ES439574A1 (en) Liquid fuel injection pumping apparatus
JPS57168098A (en) Diagonal flow pump with movable casing liner
GB1493106A (en) Variable speed transmission
JPS5537527A (en) Control method for pump speed
FR2354200A1 (en) PUMP INKING MECHANISM FOR PRINTING MACHINES
SE8002587L (en) FIBER CONTROL CONTROL DEVICE
EP0529420A3 (en)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee