GR1000239B - Συστημα ελεγχου αντλιας. - Google Patents

Συστημα ελεγχου αντλιας.

Info

Publication number
GR1000239B
GR1000239B GR880100147A GR880100147A GR1000239B GR 1000239 B GR1000239 B GR 1000239B GR 880100147 A GR880100147 A GR 880100147A GR 880100147 A GR880100147 A GR 880100147A GR 1000239 B GR1000239 B GR 1000239B
Authority
GR
Greece
Prior art keywords
pumping
volume
pressure
cycle
measure
Prior art date
Application number
GR880100147A
Other languages
English (en)
Other versions
GR880100147A (en
Inventor
Frans Ludding
Kay Madsen
Original Assignee
Fresenius Ag
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 Fresenius Ag filed Critical Fresenius Ag
Publication of GR880100147A publication Critical patent/GR880100147A/el
Publication of GR1000239B publication Critical patent/GR1000239B/el

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/172—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic
    • 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
    • F04B11/0041—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation by piston speed control

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Vascular Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Anesthesiology (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Vehicle Body Suspensions (AREA)
  • Reciprocating Pumps (AREA)
  • Fertilizing (AREA)
  • External Artificial Organs (AREA)
  • Flow Control (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Περιγράφεται σύστημα ελέγχου αντλίας, καθ' όσο μηχανισμός αντλήσεως προκαλεί αντίστοιχον κίνησιν ζεύγους πλακών πυκνωτού. Αι πλάκες ενεργοποιούνται δι' ενός σήματος εναλλασσομένου ρεύματος, το δε παραγόμενον υπό των πλακών σήμα υπόκειται εις φώρασιν εύρους, μετά της διαμορφώσεως εύρους παριστώσης την δύναμιν αντλήσεως. Η δύναμις αντλήσεως μετατρέπεται εις πίεσιν αντλήσεως. Η κορυφή πιέσεως αντλήσεως κατά την άντλησιν και το ελάχιστον όριον πιέσεως κατά την πλήρωσιν υπόκεινται εις φώρασιν προς καθορισμόν του τμήματος ενός κύκλου αντλήσεως, που απαιτείται, δια να λάβη χώραν η μετάβασις (μετάπτωσις) μεταξύ των εν λόγω δύο σταθμών πιέσεως. Η διαφορά μεταξύ των δύο σταθμών πιέσεως διαιρούμενη δια του τμήματος μεταβάσεως του κύκλου αντλήσεως παρέχει εν μέτρον διογκώσεως του θαλάμου της αντλίας. Η σχέσις του μέτρου διογκώσεως ως προς το συνολικόν κύκλον, όταν πολλαπλασιασθή δια του ονομαστικού όγκου του θαλάμου, παρέχει εν μέτρον μη αντληθέντος όγκου, που αφαιρείται εκ του ονομαστικού όγκου, προς παροχήν του όγκου, που πραγματικώς ηντλήθη κατά τον κύκλον της λειτουργίας της αντλίας. Ο αντληθείς όγκος συγκρίνεται προς τον επιθυμητόν ρυθμόν ροής δια τον καθορισμόν μιας τιμής ελέγχου ταχύτητος του κινητήρος του μηχανισμού αντλήσεως. Εν σήμα ελέγχου του κινητήρος αναπτύσσεται δια της αφαιρέσεως εξ ενός σταθερού αριθμού μιας τιμής, που είναι ο συντελεστής της τιμής ελέγχου της ταχύτητος και της θέσεως του κινητήρος. ω
GR880100147A 1987-03-13 1988-03-11 Συστημα ελεγχου αντλιας. GR1000239B (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/025,314 US4850805A (en) 1987-03-13 1987-03-13 Pump control system

Publications (2)

Publication Number Publication Date
GR880100147A GR880100147A (en) 1989-01-31
GR1000239B true GR1000239B (el) 1992-05-12

Family

ID=21825316

Family Applications (1)

Application Number Title Priority Date Filing Date
GR880100147A GR1000239B (el) 1987-03-13 1988-03-11 Συστημα ελεγχου αντλιας.

Country Status (16)

Country Link
US (1) US4850805A (el)
EP (2) EP0282323B1 (el)
JP (1) JPS63248988A (el)
KR (1) KR880010784A (el)
CN (1) CN1011478B (el)
AT (1) ATE106018T1 (el)
AU (2) AU612628B2 (el)
BR (1) BR8801150A (el)
CA (1) CA1310512C (el)
DE (1) DE3889684T2 (el)
ES (1) ES2052703T3 (el)
GR (1) GR1000239B (el)
NZ (1) NZ223707A (el)
PH (1) PH25834A (el)
PT (1) PT86959B (el)
ZA (1) ZA881774B (el)

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Also Published As

Publication number Publication date
BR8801150A (pt) 1988-10-18
DE3889684D1 (de) 1994-06-30
ZA881774B (en) 1989-11-29
AU7027991A (en) 1991-05-02
NZ223707A (en) 1990-03-27
EP0282323A3 (en) 1990-08-22
DE3889684T2 (de) 1994-09-08
ATE106018T1 (de) 1994-06-15
GR880100147A (en) 1989-01-31
CA1310512C (en) 1992-11-24
PH25834A (el) 1991-11-05
AU612628B2 (en) 1991-07-18
US4850805A (en) 1989-07-25
EP0589505A1 (en) 1994-03-30
PT86959B (pt) 1995-03-01
JPS63248988A (ja) 1988-10-17
CN1011478B (zh) 1991-02-06
AU1305988A (en) 1988-09-15
EP0282323B1 (en) 1994-05-25
KR880010784A (ko) 1988-10-24
CN88101279A (zh) 1988-09-21
EP0282323A2 (en) 1988-09-14
PT86959A (pt) 1989-03-30
AU645537B2 (en) 1994-01-20
ES2052703T3 (es) 1994-07-16

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