EP1818538A3 - Fluid pump - Google Patents

Fluid pump Download PDF

Info

Publication number
EP1818538A3
EP1818538A3 EP07250389A EP07250389A EP1818538A3 EP 1818538 A3 EP1818538 A3 EP 1818538A3 EP 07250389 A EP07250389 A EP 07250389A EP 07250389 A EP07250389 A EP 07250389A EP 1818538 A3 EP1818538 A3 EP 1818538A3
Authority
EP
European Patent Office
Prior art keywords
chamber
plunger
fluid pump
seal ring
annular portion
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.)
Granted
Application number
EP07250389A
Other languages
German (de)
French (fr)
Other versions
EP1818538A2 (en
EP1818538B1 (en
Inventor
Kai Chi Chan
Man Ting Ho
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.)
Defond Components Ltd
Original Assignee
Defond Components Ltd
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 Defond Components Ltd filed Critical Defond Components Ltd
Publication of EP1818538A2 publication Critical patent/EP1818538A2/en
Publication of EP1818538A3 publication Critical patent/EP1818538A3/en
Application granted granted Critical
Publication of EP1818538B1 publication Critical patent/EP1818538B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/046—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the fluid flowing through the moving part of the motor
    • 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
    • F04B53/02—Packing the free space between cylinders and pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Fluid-Driven Valves (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Reciprocating Pumps (AREA)

Abstract

A fluid pump (10) comprises a chamber (230) and a plunger (410) extending into the chamber (230) and supported for sliding movement on a suction stroke to introduce fluid into the chamber (230) and on a discharge stroke to force fluid out of the chamber (230). A driver (300) slides the plunger (410) in opposite directions. A seal ring (700) is provided between the chamber (230) and the plunger (410) and yet permits the plunger's sliding movement. The seal ring (700) has an outer annular portion (710) of a generally flat cross-section (711) clamped fast in a wall of the chamber (230) and an inner annular portion (720) of a bulbous cross-section (721) in sliding sealing engagement with the plunger (410).
EP07250389A 2006-02-10 2007-01-30 Fluid pump Active EP1818538B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/350,860 US20070248475A1 (en) 2006-02-10 2006-02-10 Fluid pump

Publications (3)

Publication Number Publication Date
EP1818538A2 EP1818538A2 (en) 2007-08-15
EP1818538A3 true EP1818538A3 (en) 2008-08-06
EP1818538B1 EP1818538B1 (en) 2009-04-22

Family

ID=38050018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07250389A Active EP1818538B1 (en) 2006-02-10 2007-01-30 Fluid pump

Country Status (6)

Country Link
US (1) US20070248475A1 (en)
EP (1) EP1818538B1 (en)
CN (1) CN101029635B (en)
AT (1) ATE429581T1 (en)
DE (1) DE602007000925D1 (en)
HK (1) HK1107838A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1392178B1 (en) * 2008-12-10 2012-02-22 Olab Srl VIBRATION PUMP PARTICULARLY FOR THE DISPENSING OF INCOMPRESSIBLE LOW AND MEDIUM VISCOSITY FLUIDS.
DE102010044775A1 (en) * 2009-09-09 2011-03-10 Rudolf Lonski The vibration pump
DE202011050598U1 (en) 2011-07-01 2012-10-09 Wik Far East Ltd. liquid pump
CN103649535A (en) 2011-07-01 2014-03-19 伟嘉电业有限公司 Reciprocating piston pump with magnetic drive
DE202011050599U1 (en) 2011-07-01 2012-10-09 Wik Far East Ltd. liquid pump
EP2873857B1 (en) * 2013-11-15 2020-08-19 ODE (Hk) Company Limited Fluid pump
ES2903078T3 (en) * 2016-02-15 2022-03-31 Ode S R L solenoid pump
US10221841B2 (en) * 2016-03-15 2019-03-05 Ode (Hk) Company Limited Fluid pump
CN105971838B (en) * 2016-07-15 2017-11-28 东莞辉奥电器有限公司 A kind of fluid pump
DE102018129172B4 (en) * 2018-02-22 2021-01-28 Andrzej Sokolowski Filling device for airtight bottles
EP4015823A1 (en) 2020-12-16 2022-06-22 Aerzener Maschinenfabrik GmbH Rotary piston engine unit with lubricant supply device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095708A (en) * 1937-05-04 1937-10-12 John N Martin Pump plunger
US2615769A (en) * 1947-07-19 1952-10-28 Byron H Barnes Slush pump piston
GB2018523A (en) * 1978-04-08 1979-10-17 Iwaki Co Ltd Electromagnetically-operated fixed displacement pump
US6079961A (en) * 1997-07-30 2000-06-27 Robert Bosch Gmbh Piston pump for a vehicle brake system having a plastic piston with a wear resistant cam-striking face
EP1503078A1 (en) * 2003-07-30 2005-02-02 INVENSYS CONTROLS ITALY Srl Electromagnetic pump with oscillating core
US20060027097A1 (en) * 2004-08-03 2006-02-09 Lee Pao C Composite piston for electromagnetic induction type reciprocating pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1350169A (en) * 1972-08-04 1974-04-18 British Oxygen Co Ltd Vacuum selas
US3990711A (en) * 1975-05-09 1976-11-09 Hill Ralph W Restrained elastomeric seal ring means
IT1130947B (en) * 1980-03-10 1986-06-18 De Dionigi Manlio IMPROVEMENTS TO ALTERNATIVE ELECTROMAGNETIC PUMPS IN PARTICULAR FOR NON-VISCOUS FLUIDS
CN2150359Y (en) * 1993-02-06 1993-12-22 顾为东 Permanent-magnet high-efficient piston pump
DE4442737B4 (en) * 1994-12-01 2007-06-14 Robert Bosch Gmbh piston pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095708A (en) * 1937-05-04 1937-10-12 John N Martin Pump plunger
US2615769A (en) * 1947-07-19 1952-10-28 Byron H Barnes Slush pump piston
GB2018523A (en) * 1978-04-08 1979-10-17 Iwaki Co Ltd Electromagnetically-operated fixed displacement pump
US6079961A (en) * 1997-07-30 2000-06-27 Robert Bosch Gmbh Piston pump for a vehicle brake system having a plastic piston with a wear resistant cam-striking face
EP1503078A1 (en) * 2003-07-30 2005-02-02 INVENSYS CONTROLS ITALY Srl Electromagnetic pump with oscillating core
US20060027097A1 (en) * 2004-08-03 2006-02-09 Lee Pao C Composite piston for electromagnetic induction type reciprocating pump

Also Published As

Publication number Publication date
DE602007000925D1 (en) 2009-06-04
CN101029635B (en) 2010-05-26
EP1818538A2 (en) 2007-08-15
US20070248475A1 (en) 2007-10-25
EP1818538B1 (en) 2009-04-22
HK1107838A1 (en) 2008-04-18
ATE429581T1 (en) 2009-05-15
CN101029635A (en) 2007-09-05

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