US 12,149,150 B2
Superconducting bulk comprising a cavity and associated electric machine
Sabrina Siham Ayat, Moissy-Cramayel (FR); Alexandre Colle, Moissy-Cramayel (FR); and Rémy Biaujaud, Moissy-Cramayel (FR)
Assigned to SAFRAN, Paris (FR); and UNIVERSITE DE LORRAINE, Nancy (FR)
Appl. No. 17/784,473
Filed by SAFRAN, Paris (FR); and UNIVERSITE DE LORRAINE, Nancy (FR)
PCT Filed Dec. 7, 2020, PCT No. PCT/FR2020/052301
§ 371(c)(1), (2) Date Jun. 10, 2022,
PCT Pub. No. WO2021/116575, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 1914344 (FR), filed on Dec. 13, 2019.
Prior Publication US 2023/0037086 A1, Feb. 2, 2023
Int. Cl. H02K 55/00 (2006.01); B64D 27/24 (2006.01); H01F 6/00 (2006.01); H02K 15/02 (2006.01); H02K 55/02 (2006.01)
CPC H02K 55/02 (2013.01) [B64D 27/24 (2013.01); H01F 6/00 (2013.01); H02K 15/02 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A superconducting electric machine comprising an inductor comprising a plurality of superconducting bulks and an armature comprising an arrangement of non-superconducting electromagnetic coils, wherein each superconducting bulk comprises:
a circumferential wall comprising:
a first border,
a second border opposite the first border, and
an internal face connecting the first border and the second border;
a cavity formed between the first border and the second border, the cavity being delimited by the internal face; and
a supplementary wall each either covers the first border, or is flush with said first border so as to cover at least partially the cavity, or extends from the internal face at a distance from the first border and the second border so as to divide the cavity into two parts the circumferential wall and the supplementary wall being made of a superconducting material.