US 12,442,385 B2
Turbomachine provided with a magnetic drive pump
David Simon Serge Taieb, Moissy-Cramayel (FR); Jean-Marie Andre Robert Gigon, Moissy-Cramayel (FR); and Franck Albert Robert Dupeu, Moissy-Cramayel (FR)
Assigned to SAFRAN HELICOPTER ENGINES, Bordes (FR)
Appl. No. 18/565,441
Filed by SAFRAN HELICOPTER ENGINES, Bordes (FR)
PCT Filed Jun. 1, 2022, PCT No. PCT/FR2022/051038
§ 371(c)(1), (2) Date Nov. 29, 2023,
PCT Pub. No. WO2022/254148, PCT Pub. Date Dec. 8, 2022.
Claims priority of application No. 2105859 (FR), filed on Jun. 3, 2021.
Prior Publication US 2024/0141911 A1, May 2, 2024
Int. Cl. F04D 29/048 (2006.01); F02C 7/22 (2006.01)
CPC F04D 29/048 (2013.01) [F02C 7/22 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A turbomachine comprising a rotary body comprising a motor shaft supplying mechanical power, and at least one magnetic drive pump comprising at least:
a stator delimiting an annular internal volume and comprising a first flange and a second flange,
a rotor arranged in the internal volume between the first flange and the second flange and capable of driving a fluid, the rotor being able to rotate about an axis of rotation,
a pair of magnets having opposite polarities coaxially arranged on the rotor with the axis of rotation,
a magnet arranged on the first flange to cooperate with one of the magnets of the pair of magnets of the rotor,
and means for magnetically driving the rotor in rotation arranged on the second flange, the second flange being non-magnetic.