EP4296513A3 - Diaphragm pump and pressure regulating apparatus - Google Patents

Diaphragm pump and pressure regulating apparatus Download PDF

Info

Publication number
EP4296513A3
EP4296513A3 EP23209763.4A EP23209763A EP4296513A3 EP 4296513 A3 EP4296513 A3 EP 4296513A3 EP 23209763 A EP23209763 A EP 23209763A EP 4296513 A3 EP4296513 A3 EP 4296513A3
Authority
EP
European Patent Office
Prior art keywords
diaphragm pump
fluid
passage
discharge
pressure regulating
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.)
Pending
Application number
EP23209763.4A
Other languages
German (de)
French (fr)
Other versions
EP4296513A2 (en
Inventor
Tadashi Fukami
Kazuki Itahara
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.)
Oken Seiko Co Ltd
Original Assignee
Oken Seiko Co 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
Priority claimed from JP2020043930A external-priority patent/JP2021143646A/en
Priority claimed from JP2020043931A external-priority patent/JP2021143647A/en
Application filed by Oken Seiko Co Ltd filed Critical Oken Seiko Co Ltd
Publication of EP4296513A2 publication Critical patent/EP4296513A2/en
Publication of EP4296513A3 publication Critical patent/EP4296513A3/en
Pending 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
    • 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
    • F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
    • F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
    • 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/047—Pumps having electric drive
    • 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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • 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
    • F04B43/0009—Special features
    • F04B43/0045—Special features with a number of independent working chambers which are actuated successively by one mechanism
    • 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • 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
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel
    • 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
    • F04B49/06—Control using electricity
    • 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
    • F04B49/08—Regulating by delivery pressure
    • 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
    • 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
    • F04B49/22—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 means of valves

Abstract

A diaphragm pump includes a fluid inlet, a fluid discharge port, and a fluid exhaust port that are open to outside of the diaphragm pump. The diaphragm pump further includes a pump chamber formed by a diaphragm, a suction passage that makes the pump chamber communicate with the fluid inlet; a suction valve that opens/closes the suction passage; a discharge passage that makes the pump chamber communicate with the fluid discharge port; a discharge valve that opens/closes the discharge passage; and an exhaust passage that makes the discharge passage communicate with the fluid exhaust port.
EP23209763.4A 2020-03-13 2021-02-12 Diaphragm pump and pressure regulating apparatus Pending EP4296513A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020043930A JP2021143646A (en) 2020-03-13 2020-03-13 Diaphragm pump and pressure adjustment device
JP2020043931A JP2021143647A (en) 2020-03-13 2020-03-13 Pressure adjustment device
EP21156792.0A EP3879102B1 (en) 2020-03-13 2021-02-12 Diaphragm pump and pressure regulating apparatus

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP21156792.0A Division EP3879102B1 (en) 2020-03-13 2021-02-12 Diaphragm pump and pressure regulating apparatus

Publications (2)

Publication Number Publication Date
EP4296513A2 EP4296513A2 (en) 2023-12-27
EP4296513A3 true EP4296513A3 (en) 2024-03-06

Family

ID=74595129

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21156792.0A Active EP3879102B1 (en) 2020-03-13 2021-02-12 Diaphragm pump and pressure regulating apparatus
EP23209763.4A Pending EP4296513A3 (en) 2020-03-13 2021-02-12 Diaphragm pump and pressure regulating apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP21156792.0A Active EP3879102B1 (en) 2020-03-13 2021-02-12 Diaphragm pump and pressure regulating apparatus

Country Status (3)

Country Link
US (1) US20210285436A1 (en)
EP (2) EP3879102B1 (en)
CN (1) CN113389716B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023163366A (en) * 2022-04-28 2023-11-10 マブチモーターオーケン株式会社 Diaphragm pump
WO2023240916A1 (en) * 2022-06-14 2023-12-21 佛山市顺德区美的洗涤电器制造有限公司 Diaphragm pump and dish washing machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012172577A (en) * 2011-02-21 2012-09-10 Oken Ltd Diaphragm pump
EP2985465A1 (en) * 2014-08-15 2016-02-17 Okenseiko Co., Ltd. Diaphragm pump integrally including quick discharge valve unit
EP3006738A1 (en) * 2013-06-06 2016-04-13 Okenseiko Co., Ltd. Rapid-discharge-valve structural body and diaphragm pump
EP3660309A1 (en) * 2018-11-30 2020-06-03 Okenseiko Co., Ltd. Diaphragm pump

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178918A (en) * 1977-09-15 1979-12-18 Cornwell Lionel B Automatic blood pressure measuring and recording system
US4690171A (en) * 1986-06-05 1987-09-01 Johnston Charles F Valve assembly for a sphygmomanometer
US5517999A (en) * 1994-05-26 1996-05-21 Siemens Medical Systems, Inc. Automatic blood pressure monitor with a dual-speed control circuit for the DC inflation pump motor
US7296594B1 (en) * 2005-03-22 2007-11-20 Hydro-Gear Limited Partnership Combination check valve and neutral valve assembly for use in a hydraulic component
US8974203B2 (en) * 2007-04-03 2015-03-10 Parker-Hannifin Corporation Hydraulic pump end cover
JP5353268B2 (en) * 2009-01-28 2013-11-27 オムロンヘルスケア株式会社 Diaphragm pump and blood pressure monitor
JP6234145B2 (en) 2013-10-03 2017-11-22 シチズン時計株式会社 Sphygmomanometer
JP6564644B2 (en) * 2015-08-06 2019-08-21 応研精工株式会社 Quick exhaust valve unit and diaphragm pump
JP6858020B2 (en) 2017-01-12 2021-04-14 応研精工株式会社 Diaphragm pump
CN108019341A (en) * 2017-12-04 2018-05-11 苏州市海崴生物科技有限公司 A kind of basic model quaternary diaphragm pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012172577A (en) * 2011-02-21 2012-09-10 Oken Ltd Diaphragm pump
EP3006738A1 (en) * 2013-06-06 2016-04-13 Okenseiko Co., Ltd. Rapid-discharge-valve structural body and diaphragm pump
EP2985465A1 (en) * 2014-08-15 2016-02-17 Okenseiko Co., Ltd. Diaphragm pump integrally including quick discharge valve unit
EP3660309A1 (en) * 2018-11-30 2020-06-03 Okenseiko Co., Ltd. Diaphragm pump

Also Published As

Publication number Publication date
CN113389716A (en) 2021-09-14
EP4296513A2 (en) 2023-12-27
EP3879102A1 (en) 2021-09-15
EP3879102B1 (en) 2023-12-06
US20210285436A1 (en) 2021-09-16
CN113389716B (en) 2023-01-06

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