EP 0799998 A1 19971008 - Rotary piston pump with magnetic retaining means
Title (en)
Rotary piston pump with magnetic retaining means
Title (de)
Drehkolbenpumpe mit magnetischer Rotorhalterung
Title (fr)
Pompe à piston rotatif avec des moyens de retenue magnétiques
Publication
Application
Priority
DE 19613148 A 19960403
Abstract (en)
The pump has at least one rotor (10), rotating in a pump chamber (1), and pushed onto the end (9) of a drive shaft (8). The rotor, or a part connected to it, is maintained in its axial position by a magnetic force. The force presses the rotor or part against a stop (14), which prevents movement of the rotor on the shaft in an axial direction. The magnetic force is generated by one or more permanent magnets, or solenoids, acting on ferritic iron or another magnet. One magnet (15) is positioned in the front housing wall (3), another magnet (16) is positioned in the front end face of the rotary piston facing it. The magnets have opposite poles.
Abstract (de)
Drehkolbenpumpe mit zwei in einer Pumpenkammer 1 drehenden Rotoren 10, die auf ein in die Pumpenkammer 1 ragendes Ende 9 einer Antriebswelle 8 aufschiebbar sind und die von einer magnetischen Kraft in ihrer axialen Lage gehalten werden. <IMAGE>
IPC 1-7
IPC 8 full level
F04C 15/00 (2006.01)
CPC (source: EP US)
F04C 15/0042 (2013.01 - EP US); F04C 15/0073 (2013.01 - EP US); F04C 2230/60 (2013.01 - EP US); F04C 2240/10 (2013.01 - EP US); F04C 2240/20 (2013.01 - EP US); Y10S 403/01 (2013.01 - EP US)
Citation (search report)
- [A] EP 0157049 A2 19851009 - SSP PUMPS [GB]
- [A] US 5249940 A 19931005 - MATSUDA MIKIO [JP], et al
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IE IT LI NL SE
DOCDB simple family (publication)
EP 0799998 A1 19971008; EP 0799998 B1 19990414; AT E178976 T1 19990415; DE 19613148 A1 19971009; DE 59700129 D1 19990520; US 5957677 A 19990928
DOCDB simple family (application)
EP 97104154 A 19970312; AT 97104154 T 19970312; DE 19613148 A 19960403; DE 59700129 T 19970312; US 82993297 A 19970331