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WO1999020898A3 - Pumps and drive and valve assemblies useful in same - Google Patents

Pumps and drive and valve assemblies useful in same Download PDF

Info

Publication number
WO1999020898A3
WO1999020898A3 PCT/US1998/022281 US9822281W WO9920898A3 WO 1999020898 A3 WO1999020898 A3 WO 1999020898A3 US 9822281 W US9822281 W US 9822281W WO 9920898 A3 WO9920898 A3 WO 9920898A3
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
drive
pumps
valve assemblies
diaphragms
Prior art date
Application number
PCT/US1998/022281
Other languages
French (fr)
Other versions
WO1999020898A2 (en
Inventor
E Dale Hartley
F Scott Hartley
Original Assignee
Shurflo Pump Manufacturing Co
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 Shurflo Pump Manufacturing Co filed Critical Shurflo Pump Manufacturing Co
Publication of WO1999020898A2 publication Critical patent/WO1999020898A2/en
Publication of WO1999020898A3 publication Critical patent/WO1999020898A3/en

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
    • F04B11/0008—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
    • F04B11/0016—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators with a fluid spring

Landscapes

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

Abstract

The present pumps include a housing, an inlet, an outlet, an inlet chamber, an outlet chamber, a pumping chamber, a pumping member and a drive. In one embodiment, a chamber diaphragm is provided which increases the fluid output capacity and/or reduces the fluid output pulsations of the pump. The present chamber diaphragms are particularly useful in combination with confined quantities of air which influence the movement of portions of the diaphragms. Drive assemblies are provided which enhance pump performance and/or load carrying capabilities. Valve assemblies are included which provide reliability, cost effectiveness and ease of assembly. The present pumps are straighforward, inexpensive to produce and assemble and are very effective and have long useful lives.
PCT/US1998/022281 1997-10-22 1998-10-21 Pumps and drive and valve assemblies useful in same WO1999020898A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95582997A 1997-10-22 1997-10-22
US08/955,829 1997-10-22

Publications (2)

Publication Number Publication Date
WO1999020898A2 WO1999020898A2 (en) 1999-04-29
WO1999020898A3 true WO1999020898A3 (en) 1999-07-01

Family

ID=25497411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/022281 WO1999020898A2 (en) 1997-10-22 1998-10-21 Pumps and drive and valve assemblies useful in same

Country Status (1)

Country Link
WO (1) WO1999020898A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6623256B2 (en) 2001-02-21 2003-09-23 Seiko Epson Corporation Pump with inertance value of the entrance passage being smaller than an inertance value of the exit passage
IT1399534B1 (en) * 2010-04-22 2013-04-19 Bertolini Idromeccanica ALTERNATIVE PUMP
WO2013130128A1 (en) * 2012-03-02 2013-09-06 Jones Brian Carter Magnetically actuated fluid pump and pulse reducing apparatus
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
EP2570671B1 (en) * 2011-09-13 2015-08-05 Seiko Epson Corporation Fluid feed pump, fluid circulation device, medical device and electronic device
US11027404B2 (en) 2018-07-19 2021-06-08 Milwaukee Electric Tool Corporation Lubricant-impregnated bushing for impact tool
DE102020115618A1 (en) 2020-06-12 2021-12-16 Knf Flodos Ag Oscillating positive displacement machine, in particular oscillating positive displacement pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2779353A (en) * 1952-10-29 1957-01-29 Acf Ind Inc Fuel pump dome structure
US2980031A (en) * 1958-06-25 1961-04-18 Peters & Russell Inc Pump
US3125033A (en) * 1964-03-17 marye
US3738344A (en) * 1969-09-05 1973-06-12 J Bandimere Fuel pump and method of control therefor
US4594059A (en) * 1981-11-28 1986-06-10 Erich Becker Diaphragm pump

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125033A (en) * 1964-03-17 marye
US2779353A (en) * 1952-10-29 1957-01-29 Acf Ind Inc Fuel pump dome structure
US2980031A (en) * 1958-06-25 1961-04-18 Peters & Russell Inc Pump
US3738344A (en) * 1969-09-05 1973-06-12 J Bandimere Fuel pump and method of control therefor
US4594059A (en) * 1981-11-28 1986-06-10 Erich Becker Diaphragm pump

Also Published As

Publication number Publication date
WO1999020898A2 (en) 1999-04-29

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