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WO2007021581A3 - Positive displacement pump having piston and/or liner with vapor deposited polymer surface - Google Patents

Positive displacement pump having piston and/or liner with vapor deposited polymer surface Download PDF

Info

Publication number
WO2007021581A3
WO2007021581A3 PCT/US2006/030428 US2006030428W WO2007021581A3 WO 2007021581 A3 WO2007021581 A3 WO 2007021581A3 US 2006030428 W US2006030428 W US 2006030428W WO 2007021581 A3 WO2007021581 A3 WO 2007021581A3
Authority
WO
WIPO (PCT)
Prior art keywords
piston
pump
vapor deposited
deposited polymer
liner
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/US2006/030428
Other languages
French (fr)
Other versions
WO2007021581A2 (en
Inventor
Harry E Pinkerton Iii
Carlos G Holland
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.)
Ropintassco 2 LLC
Original Assignee
Ropintassco 2 LLC
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 Ropintassco 2 LLC filed Critical Ropintassco 2 LLC
Publication of WO2007021581A2 publication Critical patent/WO2007021581A2/en
Publication of WO2007021581A3 publication Critical patent/WO2007021581A3/en
Anticipated expiration legal-status Critical
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
    • 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
    • F04B53/008—Spacing or clearance between cylinder and piston
    • 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
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
    • F04B7/06—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports the pistons and cylinders being relatively reciprocated and rotated
    • 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
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/12—Coating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)

Abstract

A metering pump for providing relatively small, precise volumes of fluid is provided. The pump piston and/or the interior of the cylinder has a surface finish exhibiting a roughness average within selected limits and a vapor deposited polymer such as polytetrafluoroethylene. A drive mechanism is provided for simultaneously rotating and reciprocating the piston within a cylindrical chamber. Fluid is thereby drawn into the chamber and expelled. The pump can be employed in a dialysate circuit or other fluidic circuits containing crystal or other residue-forming fluids, obviating the need for pump wash ports.
PCT/US2006/030428 2005-08-18 2006-08-07 Positive displacement pump having piston and/or liner with vapor deposited polymer surface Ceased WO2007021581A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/206,549 US20050276705A1 (en) 2003-05-27 2005-08-18 Positive displacement pump having piston and/or liner with vapor deposited polymer surface
US11/206,549 2005-08-18

Publications (2)

Publication Number Publication Date
WO2007021581A2 WO2007021581A2 (en) 2007-02-22
WO2007021581A3 true WO2007021581A3 (en) 2007-11-22

Family

ID=37758058

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/030428 Ceased WO2007021581A2 (en) 2005-08-18 2006-08-07 Positive displacement pump having piston and/or liner with vapor deposited polymer surface

Country Status (2)

Country Link
US (1) US20050276705A1 (en)
WO (1) WO2007021581A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7837447B2 (en) * 2007-07-23 2010-11-23 Medica Corporation Diluter pump for chemistry analyzers
US8262752B2 (en) 2007-12-17 2012-09-11 Idatech, Llc Systems and methods for reliable feedstock delivery at variable delivery rates
US8864475B2 (en) * 2009-05-28 2014-10-21 Ivek Corporation Pump with wash flow path for washing displacement piston and seal
WO2011013162A1 (en) * 2009-07-27 2011-02-03 株式会社島津製作所 Plunger type metering pump
WO2011044294A1 (en) 2009-10-06 2011-04-14 Flex Partners, Inc. Precision fluid delivery systems
DE102010039507A1 (en) * 2010-08-19 2012-02-23 Robert Bosch Gmbh Piston guide element
WO2014074828A1 (en) * 2012-11-08 2014-05-15 Viking At, Llc Compressor having a graphite piston in a glass cylinder
US9416775B2 (en) * 2014-07-02 2016-08-16 Becton, Dickinson And Company Internal cam metering pump
CN104391403A (en) * 2014-12-05 2015-03-04 京东方科技集团股份有限公司 Liquid crystal pump and dropping method thereof
EP3045724A1 (en) * 2015-01-13 2016-07-20 Neoceram S.A. Ceramic pump and casing therefor
US20180073502A1 (en) * 2016-09-09 2018-03-15 Bio-Chem Fluidics, Inc. Reciprocating piston pump and method of manufacture
US11143172B2 (en) * 2017-11-01 2021-10-12 Fluid Metering, Inc. Piston/liner configuration coordination in a piston pump
CN111188749B (en) * 2018-11-15 2021-07-16 哈尔滨工业大学 A New Diaphragmless Piezoelectric Pump Based on Piezoelectric Ceramic Drive
CN110185596B (en) * 2019-07-09 2025-05-16 珠海格力节能环保制冷技术研究中心有限公司 Pump structure, compressor and heat exchange equipment
WO2021119125A1 (en) * 2019-12-12 2021-06-17 Fluid Metering, Inc. Syringe pump

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040241023A1 (en) * 2003-05-27 2004-12-02 Pinkerton Harry E. Positive displacement pump having piston and/or liner with vapor deposited polymer surface

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4197787A (en) * 1977-08-29 1980-04-15 The United States Of America As Represented By The Secretary Of The Navy Pump piston with flexible member
DE2743911A1 (en) * 1977-09-29 1979-04-05 Graf & Co Gmbh Walter PISTONS FOR DOSING UNITS AND PROCESS FOR ITS MANUFACTURING
US4797073A (en) * 1986-10-20 1989-01-10 Tohoku Mikuni Kogyo Kabushiki Kaisha Pump with rotating and reciprocating piston
US5279210A (en) * 1992-09-03 1994-01-18 Pinkerton Dennis T Self cleaning reciprocating and/or rotating device
KR940015296A (en) * 1992-12-15 1994-07-20 김광호 Magnetic fluid pump
JPH11303709A (en) * 1998-04-24 1999-11-02 Sumitomo Electric Ind Ltd Fuel injection pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040241023A1 (en) * 2003-05-27 2004-12-02 Pinkerton Harry E. Positive displacement pump having piston and/or liner with vapor deposited polymer surface

Also Published As

Publication number Publication date
WO2007021581A2 (en) 2007-02-22
US20050276705A1 (en) 2005-12-15

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