WO2004001228A3 - High-pressure small volume pump - Google Patents

High-pressure small volume pump Download PDF

Info

Publication number
WO2004001228A3
WO2004001228A3 PCT/CH2003/000394 CH0300394W WO2004001228A3 WO 2004001228 A3 WO2004001228 A3 WO 2004001228A3 CH 0300394 W CH0300394 W CH 0300394W WO 2004001228 A3 WO2004001228 A3 WO 2004001228A3
Authority
WO
WIPO (PCT)
Prior art keywords
dead space
sealing surface
small volume
pulsation
seals
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.)
Ceased
Application number
PCT/CH2003/000394
Other languages
French (fr)
Other versions
WO2004001228A2 (en
Inventor
Fritz Gyger
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.)
Individual
Original Assignee
Individual
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
Priority to EP03727124A priority Critical patent/EP1514027B1/en
Priority to CA2485552A priority patent/CA2485552C/en
Priority to AT03727124T priority patent/ATE536477T1/en
Priority to AU2003233907A priority patent/AU2003233907A1/en
Priority to DE60326841T priority patent/DE60326841D1/en
Priority to EA200401530A priority patent/EA009029B1/en
Application filed by Individual filed Critical Individual
Priority to US10/518,785 priority patent/US20050232792A1/en
Publication of WO2004001228A2 publication Critical patent/WO2004001228A2/en
Publication of WO2004001228A3 publication Critical patent/WO2004001228A3/en
Anticipated expiration legal-status Critical
Priority to US12/562,020 priority patent/US20100008803A1/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F04B11/0075—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using two or more pumping pistons connected in series
    • 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
    • F04B53/144—Adaptation of piston-rods
    • F04B53/147—Mounting or detaching of piston rod
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • 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
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F04B53/162—Adaptations of cylinders
    • F04B53/164—Stoffing boxes
    • 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
    • F04B2201/00—Pump parameters
    • F04B2201/02—Piston parameters
    • F04B2201/0201—Position of the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/08—Ceramics; Oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/04—PTFE [PolyTetraFluorEthylene]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/12—Polyetheretherketones, e.g. PEEK

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

An improved high-pressure pump (1) for an accurate, largely pulsation-free flow of the working medium, more particularly an HPLC pump, includes one or a plurality of the following measures: reduced dead space due to adapted seals (48, 70); reduced dead space thanks to a device (15, 16; 32; 36, 38) for adjusting the length of the displacement piston; adjustable dead space and therefore adjusting capability of the pulsation freedom through a displacement chamber provided with an adjustable opposed piston (58); and seals compensating construction tolerances by a combination of a cambered sealing surface and a conical sealing surface.
PCT/CH2003/000394 2002-06-19 2003-06-18 High-pressure small volume pump Ceased WO2004001228A2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CA2485552A CA2485552C (en) 2002-06-19 2003-06-18 High-pressure small volume pump
AT03727124T ATE536477T1 (en) 2002-06-19 2003-06-18 HIGH PRESSURE, SMALL VOLUME DISPLACEMENT PUMP
AU2003233907A AU2003233907A1 (en) 2002-06-19 2003-06-18 High-pressure small volume pump
DE60326841T DE60326841D1 (en) 2002-06-19 2003-06-18 HIGH-VOLUME SMALL-displacement pump
EA200401530A EA009029B1 (en) 2002-06-19 2003-06-18 High-pressure small volume pump
EP03727124A EP1514027B1 (en) 2002-06-19 2003-06-18 High-pressure small volume pump
US10/518,785 US20050232792A1 (en) 2003-06-18 2003-06-18 High-pressure small volume pump
US12/562,020 US20100008803A1 (en) 2002-06-19 2009-09-17 High-pressure small volume pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02405509A EP1375921A1 (en) 2002-06-19 2002-06-19 High pressure low volume piston pump
EP02405509.7 2002-06-19

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/562,020 Continuation US20100008803A1 (en) 2002-06-19 2009-09-17 High-pressure small volume pump

Publications (2)

Publication Number Publication Date
WO2004001228A2 WO2004001228A2 (en) 2003-12-31
WO2004001228A3 true WO2004001228A3 (en) 2004-03-04

Family

ID=29716992

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2003/000394 Ceased WO2004001228A2 (en) 2002-06-19 2003-06-18 High-pressure small volume pump

Country Status (8)

Country Link
EP (2) EP1375921A1 (en)
CN (1) CN100406734C (en)
AT (1) ATE536477T1 (en)
AU (1) AU2003233907A1 (en)
CA (1) CA2485552C (en)
DE (1) DE60326841D1 (en)
EA (1) EA009029B1 (en)
WO (1) WO2004001228A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011056094B4 (en) 2011-12-06 2014-05-28 Dionex Softron Gmbh Switching valve, in particular for switching a high-pressure fluid

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2346964A (en) * 1940-08-26 1944-04-18 Omega Machine Company Positive displacement pump
US2733664A (en) * 1956-02-07 saalfrank
US2841092A (en) * 1955-08-09 1958-07-01 Milton Roy Co High-pressure pump
US3981620A (en) * 1972-03-06 1976-09-21 Waters Associates, Inc. Pumping apparatus
US4045343A (en) * 1975-11-10 1977-08-30 Varian Associates, Inc. High pressure liquid chromatography system
US4592558A (en) * 1984-10-17 1986-06-03 Hydril Company Spring ring and hat ring seal
US4706970A (en) * 1984-11-14 1987-11-17 Polydyne Industries, Inc. Flexible ring seal with insert in circumferentially extending channel
DE4308467A1 (en) * 1992-10-28 1994-05-05 Herbert Dr Funke High pressure pump for fine liquid metering
EP0677659A2 (en) * 1994-04-13 1995-10-18 Cryomec AG Driving device of a piston pump for cryogenic fluids
US5799953A (en) * 1995-05-25 1998-09-01 American Variseal Capped spring-energized seal
EP0898077A1 (en) * 1997-08-20 1999-02-24 Hydrair Limited Pump for shear sensitive material

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733664A (en) * 1956-02-07 saalfrank
US2346964A (en) * 1940-08-26 1944-04-18 Omega Machine Company Positive displacement pump
US2841092A (en) * 1955-08-09 1958-07-01 Milton Roy Co High-pressure pump
US3981620A (en) * 1972-03-06 1976-09-21 Waters Associates, Inc. Pumping apparatus
US4045343A (en) * 1975-11-10 1977-08-30 Varian Associates, Inc. High pressure liquid chromatography system
US4592558A (en) * 1984-10-17 1986-06-03 Hydril Company Spring ring and hat ring seal
US4706970A (en) * 1984-11-14 1987-11-17 Polydyne Industries, Inc. Flexible ring seal with insert in circumferentially extending channel
DE4308467A1 (en) * 1992-10-28 1994-05-05 Herbert Dr Funke High pressure pump for fine liquid metering
EP0677659A2 (en) * 1994-04-13 1995-10-18 Cryomec AG Driving device of a piston pump for cryogenic fluids
US5799953A (en) * 1995-05-25 1998-09-01 American Variseal Capped spring-energized seal
EP0898077A1 (en) * 1997-08-20 1999-02-24 Hydrair Limited Pump for shear sensitive material

Also Published As

Publication number Publication date
ATE536477T1 (en) 2011-12-15
EP1375921A1 (en) 2004-01-02
EA009029B1 (en) 2007-10-26
WO2004001228A2 (en) 2003-12-31
CN100406734C (en) 2008-07-30
CA2485552A1 (en) 2003-12-31
DE60326841D1 (en) 2009-05-07
AU2003233907A1 (en) 2004-01-06
CA2485552C (en) 2011-08-23
AU2003233907A8 (en) 2004-01-06
CN1662745A (en) 2005-08-31
EP1514027B1 (en) 2011-12-07
EA200401530A1 (en) 2006-10-27
EP1514027A2 (en) 2005-03-16

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