EP 0490773 B1 19951004 - Multistage pump especially intended for pumping a multiphase fluid.
Title (en)
Multistage pump especially intended for pumping a multiphase fluid.
Title (de)
Mehrstufige Pumpe, insbesondere bestimmt zur Förderung einer mehrphasigen Flüssigkeit.
Title (fr)
Pompe multi-étagée destinée particulièrement au pompage d'un fluide multiphasique.
Publication
Application
Priority
FR 9015698 A 19901214
Abstract (en)
[origin: JPH04292588A] PURPOSE: To provide a multistage pump having an easily installable assembly comprising a shaft and pulsating systems and an easily balanceable rotor. CONSTITUTION: In a multistage pump comprising a main body 2 sealed by a flange 6 formed close to an entrance and a flange 20 formce close to an exit at both ends, pulsating systems 12 coupled with the main body 2, and strainers 14 alternately disposed on the main body 2 with the pulsating systems 12, a shaft 10 is formed with the pulsating systems 12 as an assembly comprising a single member, and washers 3, 30 are installed close to a center part of the main body at least in the number of stages.
IPC 1-7
IPC 8 full level
F04B 47/00 (2006.01); F04D 1/04 (2006.01); F04D 29/04 (2006.01); F04D 29/041 (2006.01); F04D 29/043 (2006.01); F04D 29/18 (2006.01); F04D 29/62 (2006.01)
CPC (source: EP US)
F04D 1/04 (2013.01 - EP US); F04D 29/0413 (2013.01 - EP US); F04D 29/043 (2013.01 - EP US); F04D 29/185 (2013.01 - EP US); F04D 29/628 (2013.01 - EP US); F04D 31/00 (2013.01 - EP); Y10T 29/49336 (2015.01 - EP US); Y10T 29/49865 (2015.01 - EP US); Y10T 29/49995 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0490773 A1 19920617; EP 0490773 B1 19951004; AT E128755 T1 19951015; BR 9105410 A 19920825; DE 69113587 D1 19951109; DE 69113587 T2 19960404; ES 2079607 T3 19960116; FR 2670539 A1 19920619; FR 2670539 B1 19940902; GR 3017849 T3 19960131; JP H04292588 A 19921016; MX 9102415 A 19920901; NO 914903 D0 19911212; NO 914903 L 19920615; US 5253977 A 19931019
DOCDB simple family (application)
EP 91403381 A 19911213; AT 91403381 T 19911213; BR 9105410 A 19911213; DE 69113587 T 19911213; ES 91403381 T 19911213; FR 9015698 A 19901214; GR 950402953 T 19951025; JP 35283891 A 19911216; MX 9102415 A 19911216; NO 914903 A 19911212; US 80510091 A 19911210