EP 0026704 A1 19810408 - Peristaltic pump.
Title (en)
Peristaltic pump.
Title (de)
Peristaltische Pumpe.
Title (fr)
Pompe péristaltique.
Publication
Application
Priority
- FR 7924032 A 19790927
- FR 8000151 A 19800104
- FR 8004520 A 19800229
Abstract (en)
1. Peristaltic pump comprising a casing (1) constructed in two sections with a detachable cover (2) ; a rotor (11) providing a support for rollers (15) and rotatably mounted on the shaft (12) of the casing (1) which is perpendicular to the cover, rollers (15) which have a conical surface centered on the shaft (12) of the casing ; resilient means for applying said rollers (15) against one wall of the cover (2) when this latter is in the closed position, a tube (24) being flattened against a stationary supporting track at least to a partial extent by said rollers (15), said pump being characterized in that the rollers (15) are applied against the edges of a channel (27) for receiving the tube (24), the channel being of variable depth and having a bottom wall which constitutes said supporting track ; that this channel (27) for receiving the tube (24) is formed in the detachable cover (2) and that said channel has a first upstream segment (E-A) in which its depth decreases progressively, an intermediate delivery segment in which its depth remains constant and sufficiently small to ensure that the tube (24) is completely closed locally by flattening when a roller (15) passes, at all points over a length of this channel which corresponds at least to the distance between two successive rollers, the depth of said channel (27) being such as to increase progressively and continuously along a downstream segment (B-C) until it attains the thickness of the tube when no roller pressure is applied.
Abstract (fr)
Une pompe péristaltique comporte un rotor (11) support de galets (15), monté rotatif autour de l'axe (12) d'un circuit sensiblement circulaire défini pour un tube (24) élastiquement déformable, et portant des galets presseurs coniques (15) montés radialement dans le rotor (11), rotatifs sur leurs axes (17) respectifs, de manière à suivre ledit circuit au cours de la rotation du rotor (11), en écrasant au moins partiellement ledit tube (24) contre une piste d'appui fixe. La paroi formant cette piste d'appui présente une surface conique de même inclinaison que les galets (15) sur l'axe (12) du rotor (11). On impose, à la sortie de la pompe, par la forme de la piste d'appui en liaison avec la trajectoire des galets (15), une libération progressive de la pression des galets, sur un tronçon aval (B-C) du circuit, où l'écart entre la trajectoire des galets (15) et la piste d'appui augmente progessivement.
IPC 1-7
IPC 8 full level
F04B 43/00 (2006.01); F04B 43/12 (2006.01)
CPC (source: EP)
F04B 43/0072 (2013.01); F04B 43/1261 (2013.01); F04B 43/1269 (2013.01)
Citation (search report)
- US 2804023 A 19570827 - LEE JOHN C
- FR 2117190 A5 19720721 - WIBAU GMBH
- FR 2129292 A5 19721027 - CORDEL & CIE
- BE 624115 A
- DE 2040034 A1 19720217 - BODENSEEWERK PERKIN ELMER CO
- DE 110412 C
- CH 433992 A 19670415 - DUTLER HANS DR [CH]
- DE 2200595 A1 19730712 - VOGT WINHOLD DIPL BERGING
- DE 2812805 A1 19781019 - GAMBRO AB
- DE 2433145 A1 19760129 - DAVIER RUDOLF V
- FR 1114548 A 19560413
- GB 916706 A 19630123 - BTR INDUSTRIES LTD, et al
- US 3875970 A 19750408 - FITTER JOHN O
- US 2102523 A 19371214 - FERRARA SAMUEL J, et al
Designated contracting state (EPC)
DE GB IT SE
DOCDB simple family (publication)
EP 0026704 A1 19810408; EP 0026704 B1 19860604; DE 3071630 D1 19860710
DOCDB simple family (application)
EP 80401357 A 19800924; DE 3071630 T 19800924