The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 1999
Filed:
Dec. 30, 1996
Regis Vilagines, Vernaison, FR;
Christian Bratu, Les Vergers de la Ranchere, FR;
Florent Spettel, Neuville Sur Saone, FR;
Institute Francais du Petrole, Rueil Malmaison, FR;
Abstract
The invention is a device for providing one of compressing and pumping of a multiphase fluid including at least one liquid phase and at least one gaseous phase. The device includes at least one hollow casing having at least one inlet port and at least one outlet port for the fluid. At least one rotor is rotated and mounted inside the casing having an axis OX in a hub. The at least one rotor comprises at least one impeller or at least one diffuser having at least two vanes G.sub.j having a first blade A.sub.1j and a second blade A.sub.2j wherein geometric characteristics and position of at least one of the first blade A.sub.1j and at least one second blade A.sub.2j in relation to each other is determined according to at least one parameter.