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EP1489306A3 - Pump - Google Patents

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Publication number
EP1489306A3
EP1489306A3 EP04014052A EP04014052A EP1489306A3 EP 1489306 A3 EP1489306 A3 EP 1489306A3 EP 04014052 A EP04014052 A EP 04014052A EP 04014052 A EP04014052 A EP 04014052A EP 1489306 A3 EP1489306 A3 EP 1489306A3
Authority
EP
European Patent Office
Prior art keywords
pump chamber
primary pump
gas bubbles
discharging
inlet passage
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
EP04014052A
Other languages
German (de)
French (fr)
Other versions
EP1489306A2 (en
EP1489306B1 (en
Inventor
Takeshi Seto
Kunihiko Takagi
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of EP1489306A2 publication Critical patent/EP1489306A2/en
Publication of EP1489306A3 publication Critical patent/EP1489306A3/en
Application granted granted Critical
Publication of EP1489306B1 publication Critical patent/EP1489306B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
    • 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
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04—Pumps having electric drive
    • F04B43/043—Micropumps
    • F04B43/046—Micropumps with piezoelectric drive

Landscapes

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

Abstract

A pump (10) comprises a primary pump chamber (27) whose volume can be varied by driving a diaphragm (60), an inlet passage for allowing a working fluid to flow into the primary pump chamber (27), an outlet passage for allowing the working fluid to flow out of the primary pump chamber (27), and check valves (41, 42) for opening and closing at least the inlet passage, wherein the total inertance value of the inlet passage is set to be smaller than the total inertance value of the outlet passage, and bubble discharging means for discharging gas bubbles remaining in the primary pump chamber (27) is further provided. As a result, it is possible to provide a pump capable of discharging gas bubbles with the bubble discharging means and thus maintaining a discharging ability, even when the gas bubbles stay in the primary pump chamber (27).
EP04014052A 2003-06-17 2004-06-16 Pump Expired - Lifetime EP1489306B1 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2003172106 2003-06-17
JP2003172106 2003-06-17
JP2003290659 2003-08-08
JP2003290659 2003-08-08
JP2003348424 2003-10-07
JP2003348424 2003-10-07
JP2004084638A JP4678135B2 (en) 2003-06-17 2004-03-23 pump
JP2004084638 2004-03-23

Publications (3)

Publication Number Publication Date
EP1489306A2 EP1489306A2 (en) 2004-12-22
EP1489306A3 true EP1489306A3 (en) 2005-11-16
EP1489306B1 EP1489306B1 (en) 2007-06-06

Family

ID=33425423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04014052A Expired - Lifetime EP1489306B1 (en) 2003-06-17 2004-06-16 Pump

Country Status (5)

Country Link
US (1) US20050019180A1 (en)
EP (1) EP1489306B1 (en)
JP (1) JP4678135B2 (en)
CN (1) CN100398821C (en)
DE (1) DE602004006802T2 (en)

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KR100624443B1 (en) * 2004-11-04 2006-09-15 삼성전자주식회사 Piezoelectric inkjet printhead with one-way shutter
CN100439711C (en) * 2005-04-14 2008-12-03 精工爱普生株式会社 Pump
JP4805658B2 (en) * 2005-11-09 2011-11-02 日東工器株式会社 Pump using unimorph diaphragm
WO2007108246A1 (en) * 2006-03-22 2007-09-27 Murata Manufacturing Co., Ltd. Piezoelectric micropump
JP4830689B2 (en) * 2006-07-25 2011-12-07 パナソニック電工株式会社 Diaphragm pump
JP4730437B2 (en) * 2006-12-09 2011-07-20 株式会社村田製作所 Piezoelectric pump
JP5407333B2 (en) 2007-01-23 2014-02-05 日本電気株式会社 Diaphragm pump
DE112008001148A5 (en) * 2007-07-02 2010-08-05 Contitech Ag Strain sensor and sensor arrangement for this purpose
CN101463808B (en) * 2007-12-21 2010-12-08 研能科技股份有限公司 Fluid delivery device
SE532405C2 (en) * 2008-05-02 2010-01-12 Johan Stenberg Pump system and method for determining a pressure value
US8267675B2 (en) * 2008-06-16 2012-09-18 GM Global Technology Operations LLC High flow piezoelectric pump
JP2010051430A (en) * 2008-08-27 2010-03-11 Seiko Epson Corp Pulse generating mechanism, connection flow channel tube, fluid ejection apparatus
TWI392639B (en) * 2008-10-31 2013-04-11 Univ Nat Pingtung Sci & Tech Electromagnetic micro-pump
CN101881266B (en) * 2009-05-06 2012-08-22 研能科技股份有限公司 Fluid delivery device
JP4666094B2 (en) 2009-07-10 2011-04-06 セイコーエプソン株式会社 PULSE FLOW GENERATION DEVICE, MEDICAL DEVICE, AND METHOD OF CONTROLLING PULSE FLOW GENERATION DEVICE
US20120034109A1 (en) 2010-08-09 2012-02-09 Aidan Marcus Tout System and method for measuring pressure applied by a piezo-electric pump
JP5810491B2 (en) * 2010-08-27 2015-11-11 セイコーエプソン株式会社 Fluid ejection device
JP5828372B2 (en) 2010-09-21 2015-12-02 セイコーエプソン株式会社 Cooling device and projector
JP2012145031A (en) * 2011-01-12 2012-08-02 Seiko Epson Corp Pump, fluid injection apparatus and medical equipment
JP5776447B2 (en) 2011-08-30 2015-09-09 セイコーエプソン株式会社 Control device and excision device used in connection with fluid ejection device for excising biological tissue by ejected fluid
JP2014005755A (en) * 2012-06-22 2014-01-16 Seiko Epson Corp Liquid feeding pump and circulating device
US9243619B2 (en) * 2011-09-13 2016-01-26 Seiko Epson Corporation Liquid feed pump and circulation pump with detection units to detect operating states of the pumps
JP6115014B2 (en) * 2012-03-13 2017-04-19 セイコーエプソン株式会社 Fluid circulation device and medical device using fluid circulation device
DE102011084906A1 (en) * 2011-10-20 2013-04-25 Endress+Hauser Meßtechnik GmbH+Co.KG Method for monitoring pump for transporting liquid in industrial plant for production of e.g. cosmetic, involves detecting air bubble or froth in pump liquid by capacitive and/or conductive sensor arranged into housing portion
CN104136777A (en) 2012-02-10 2014-11-05 凯希特许有限公司 Systems and methods for regulating the temperature of a disc pump system
AU2013216967A1 (en) * 2012-02-10 2014-08-28 Kci Licensing, Inc. Systems and methods for monitoring reduced pressure supplied by a disc pump system
JP2013215548A (en) * 2012-03-15 2013-10-24 Seiko Epson Corp Liquid circulating apparatus and medical apparatus
FI127687B (en) * 2012-03-20 2018-12-14 Aalto Korkeakoulusaeaetioe Adaptive hydraulic pressure generator
US20130272898A1 (en) * 2012-04-17 2013-10-17 Schlumberger Technology Corporation Instrumenting High Reliability Electric Submersible Pumps
JP5761455B2 (en) * 2012-05-09 2015-08-12 株式会社村田製作所 Cooling device, heating cooling device
DE102014112833A1 (en) * 2014-09-05 2016-03-10 Prominent Gmbh Positive displacement pump with fluid reservoir
US10334879B2 (en) * 2015-12-21 2019-07-02 Funai Electric Co., Ltd Method and apparatus for metering and vaporizing a fluid
US10344747B2 (en) * 2015-12-21 2019-07-09 Funai Electric Co., Ltd. Method and apparatus for metering and vaporizing a fluid
DK3534002T3 (en) * 2016-10-27 2021-04-06 Nitto Kohki Co LIQUID PUMP
JP7020645B2 (en) * 2017-12-21 2022-02-16 豊田合成株式会社 pump
JP7178838B2 (en) * 2018-09-11 2022-11-28 大研医器株式会社 Connection member, pump casing and injection device provided with said connection member
US11519404B2 (en) 2020-01-24 2022-12-06 Hamilton Sundstrand Corporation Determining a fatigue condition of a hydraulic system
JP7597437B2 (en) * 2020-12-25 2024-12-10 ミネベアミツミ株式会社 PUMP SYSTEM, FLUID SUPPLY DEVICE, AND PRESSURE DETECTION METHOD
US20230068420A1 (en) * 2021-08-17 2023-03-02 Facebook Technologies, Llc Fluid pump having a polyvinylidene fluoride membrane
WO2025074860A1 (en) * 2023-10-06 2025-04-10 株式会社イワキ Pump device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309153A (en) * 1978-07-18 1982-01-05 Webasto-Werk W. Baier Gmbh & Co. Electromagnetic fuel delivery and metering pump
US5219278A (en) * 1989-11-10 1993-06-15 Westonbridge International, Ltd. Micropump with improved priming
EP0568902A2 (en) * 1992-05-02 1993-11-10 Westonbridge International Limited Micropump avoiding microcavitation
EP0587912A1 (en) * 1992-04-02 1994-03-23 Seiko Epson Corporation Fluid controlling microdevice and method of manufacturing the same
US20020114716A1 (en) * 2001-02-21 2002-08-22 Seiko Epson Corporation Pump
JP2002322986A (en) * 2001-02-21 2002-11-08 Seiko Epson Corp pump

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JPS4960125U (en) * 1972-09-12 1974-05-27
US4093403A (en) * 1976-09-15 1978-06-06 Outboard Marine Corporation Multistage fluid-actuated diaphragm pump with amplified suction capability
AU635262B2 (en) * 1989-05-11 1993-03-18 Bespak Plc Pump apparatus for biomedical use
JPH06346838A (en) * 1993-06-11 1994-12-20 Seiko Epson Corp Pump priming device
JPH07195711A (en) * 1993-12-28 1995-08-01 Canon Inc Inkjet recording device
JPH09228964A (en) * 1996-02-26 1997-09-02 Nikkiso Co Ltd Defoaming treatment device
JP3570895B2 (en) * 1998-07-02 2004-09-29 日本碍子株式会社 Discharge device for raw materials and fuel
JP3692381B2 (en) * 2001-08-29 2005-09-07 株式会社タクミナ Gas discharge mechanism and reciprocating pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4309153A (en) * 1978-07-18 1982-01-05 Webasto-Werk W. Baier Gmbh & Co. Electromagnetic fuel delivery and metering pump
US5219278A (en) * 1989-11-10 1993-06-15 Westonbridge International, Ltd. Micropump with improved priming
EP0587912A1 (en) * 1992-04-02 1994-03-23 Seiko Epson Corporation Fluid controlling microdevice and method of manufacturing the same
EP0568902A2 (en) * 1992-05-02 1993-11-10 Westonbridge International Limited Micropump avoiding microcavitation
US20020114716A1 (en) * 2001-02-21 2002-08-22 Seiko Epson Corporation Pump
JP2002322986A (en) * 2001-02-21 2002-11-08 Seiko Epson Corp pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 03 5 May 2003 (2003-05-05) *

Also Published As

Publication number Publication date
CN1573102A (en) 2005-02-02
EP1489306A2 (en) 2004-12-22
DE602004006802D1 (en) 2007-07-19
JP2005133704A (en) 2005-05-26
CN100398821C (en) 2008-07-02
DE602004006802T2 (en) 2008-02-14
JP4678135B2 (en) 2011-04-27
US20050019180A1 (en) 2005-01-27
EP1489306B1 (en) 2007-06-06

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