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MX173945B - IMPROVED POSITIVE DISPLACEMENT PUMP - Google Patents

IMPROVED POSITIVE DISPLACEMENT PUMP

Info

Publication number
MX173945B
MX173945B MX018507A MX1850789A MX173945B MX 173945 B MX173945 B MX 173945B MX 018507 A MX018507 A MX 018507A MX 1850789 A MX1850789 A MX 1850789A MX 173945 B MX173945 B MX 173945B
Authority
MX
Mexico
Prior art keywords
pump chamber
chamber
fluid
inlet passage
pump
Prior art date
Application number
MX018507A
Other languages
Spanish (es)
Inventor
Stig Lundbaeck
Original Assignee
Astra Tech Ab
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 SE8804448A external-priority patent/SE8804448L/en
Application filed by Astra Tech Ab filed Critical Astra Tech Ab
Publication of MX173945B publication Critical patent/MX173945B/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/08Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/082Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009Special features
    • F04B43/0027Special features without valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Rotary Pumps (AREA)
  • External Artificial Organs (AREA)

Abstract

La presente invención se refiere a una bomba mejorada de desplazamiento positivo, que incluye un elemento que define una cámara de suministro para recibir el fluido que se va a bombear, un elemento que define una cámara de bomba de volumen variable, un pasaje de entrada a través del cual el fluido se conduce desde la cámara de suministro a la cámara de bomba, una salida a través de la cual el fluido se descarga desde la cámara de bomba, un miembro de desplazamiento aociado con la cámara de bomba y móvil en direcciones opuestas a lo largo de una trayectoria predeterminada, tal como para moverse a través de una zona de desplazamiento variable de la cámara de bomba, para aumentar y disminuir alternativamente el volumen de la cámara, un elemento de impulso para mover el miembro de desplazamiento en al menos una dirección, para disminuir el volumen de la cámara de bomba, y un elemento de válvula de entrada para cerrar el pasaje de entrada y bloquear el fluido del flujo hacia atrás fuera de la cámara de bomba a través del pasaje de entrada, en donde la mejora consiste en que la cámara de suministro se dispone generalmente en forma lateral de y rodea substancialmente la zona de desplazamiento de la cámara de bomba y el pasaje de entrada es substancialmente coextensivo con la cámara de suministro y se abre a la cámara de bomba a través de una abertura de tipo hueco alargado en una pared de unión de la cámara de bomba, colocada en general lateralmente de la zona de desplazamiento, por lo cual el fluido puede entrar en la cámara de bomba a través del pasaje de entrada, substancialmente sin ninguna caída de presión.The present invention relates to an improved positive displacement pump, which includes an element defining a supply chamber to receive the fluid to be pumped, an element defining a variable volume pump chamber, an inlet passage to through which the fluid is led from the supply chamber to the pump chamber, an outlet through which the fluid is discharged from the pump chamber, a displacement member associated with the pump chamber and moving in opposite directions along a predetermined path, such as to move through a variable displacement zone of the pump chamber, to alternately increase and decrease the chamber volume, a driving element to move the displacement member by at least a direction, to decrease the volume of the pump chamber, and an inlet valve element to close the inlet passage and block the flow fluid to back out of the pump chamber through the inlet passage, where the improvement is that the supply chamber is generally disposed laterally from and substantially surrounds the displacement zone of the pump chamber and the inlet passage is substantially coextensive with the supply chamber and opens into the pump chamber through an elongated hollow-type opening in a connecting wall of the pump chamber, generally positioned laterally of the displacement zone, whereby fluid It can enter the pump chamber through the inlet passage, substantially without any pressure drop.

MX018507A 1988-12-08 1989-11-28 IMPROVED POSITIVE DISPLACEMENT PUMP MX173945B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8804448A SE8804448L (en) 1988-12-08 1988-12-08 displacement pump
US35908589A 1989-05-30 1989-05-30

Publications (1)

Publication Number Publication Date
MX173945B true MX173945B (en) 1994-04-11

Family

ID=26660376

Family Applications (1)

Application Number Title Priority Date Filing Date
MX018507A MX173945B (en) 1988-12-08 1989-11-28 IMPROVED POSITIVE DISPLACEMENT PUMP

Country Status (22)

Country Link
EP (1) EP0374115B1 (en)
JP (1) JPH02230987A (en)
CN (1) CN1020941C (en)
AR (1) AR242113A1 (en)
AU (1) AU641371B2 (en)
BR (1) BR8906367A (en)
CA (1) CA2004665A1 (en)
CZ (1) CZ280010B6 (en)
DE (2) DE3939367A1 (en)
DK (1) DK171584B1 (en)
ES (1) ES2044224T3 (en)
FI (1) FI895853A0 (en)
GB (1) GB2226606B (en)
HU (1) HUT54900A (en)
IE (1) IE61833B1 (en)
IL (1) IL92572A0 (en)
MX (1) MX173945B (en)
MY (1) MY104484A (en)
NO (1) NO894891L (en)
PL (1) PL164330B1 (en)
PT (1) PT92514B (en)
RU (1) RU2037652C1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9002044L (en) * 1990-06-07 1992-01-07 Astra Tech Ab FLUID VALVE DEVICE AND SUPPLY PUMP
US5441392A (en) * 1990-06-07 1995-08-15 Humanteknik Ab Apparatus for repetitively dispensing a measured volume of liquid
SE9002051L (en) * 1990-06-07 1992-01-07 Astra Tech Ab VALVE DEVICE AND SUPPLY PUMP
SE9002045L (en) * 1990-06-07 1992-01-07 Astra Tech Ab FLAP VALVE DEVICE
SE500187C2 (en) * 1991-06-07 1994-05-02 Humanteknik Ab Method for transporting liquid and pumping device for carrying out the process
US6866822B1 (en) * 2000-08-11 2005-03-15 Lifescan, Inc. Gimbaled bladder actuator for use with test strips
US7081107B2 (en) 2002-07-02 2006-07-25 Terumo Kabushiki Kaisha Syringe and prefilled syringe
US20060000710A1 (en) 2004-06-30 2006-01-05 Klaus Peter Weidenhaupt Fluid handling methods
CN104066986B (en) * 2012-01-19 2017-03-29 韦纽斯有限公司 Tubing pump
KR102494592B1 (en) * 2015-04-27 2023-02-06 아이디얼 인더스트리즈 인코포레이티드 Personal air sampling pump assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE875142C (en) * 1944-04-22 1953-04-30 Messerschmitt A G Fluid conveying device
FR1507222A (en) * 1966-11-08 1967-12-29 Stop Sa Suction and pressure pump for vehicle windshield washer fluid
DE3631982C1 (en) * 1986-09-19 1988-02-04 Hans Ing Kern Dosing pump
IL83259A (en) * 1987-07-20 1992-05-25 D F Lab Ltd Disposable cell and diaphragm pump for use of same
US4775771A (en) * 1987-07-30 1988-10-04 James River Corporation Sleeve for crisping and browning of foods in a microwave oven and package and method utilizing same

Also Published As

Publication number Publication date
AR242113A1 (en) 1993-03-31
DK603489A (en) 1990-06-09
DK603489D0 (en) 1989-11-29
RU2037652C1 (en) 1995-06-19
CZ280010B6 (en) 1995-09-13
FI895853A0 (en) 1989-12-07
EP0374115B1 (en) 1993-07-14
IE893843L (en) 1990-06-08
DK171584B1 (en) 1997-02-10
CA2004665A1 (en) 1990-06-08
NO894891L (en) 1990-06-11
GB2226606A (en) 1990-07-04
AU641371B2 (en) 1993-09-23
PT92514A (en) 1990-06-29
HUT54900A (en) 1991-04-29
ES2044224T3 (en) 1994-01-01
GB2226606B (en) 1993-05-05
EP0374115A1 (en) 1990-06-20
PT92514B (en) 1995-09-12
JPH02230987A (en) 1990-09-13
HU896463D0 (en) 1990-02-28
IE61833B1 (en) 1994-11-30
DE68907576D1 (en) 1993-08-19
CN1020941C (en) 1993-05-26
DE68907576T2 (en) 1993-12-23
BR8906367A (en) 1990-08-21
NO894891D0 (en) 1989-12-06
PL164330B1 (en) 1994-07-29
CN1043191A (en) 1990-06-20
GB8926719D0 (en) 1990-01-17
IL92572A0 (en) 1990-08-31
MY104484A (en) 1994-04-30
AU4591889A (en) 1990-06-14
CS8906900A2 (en) 1991-11-12
DE3939367A1 (en) 1990-06-13

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