US 11,894,756 B2
Systems and methods for electric propulsion systems for electric engines
Mohamed A. Salam, Rancho Palos Verdes, CA (US); Robert A. Dietrich, Montebello, CA (US); Evgeni Ganev, Torrance, CA (US); and Stephen L. White, Whittier, CA (US)
Assigned to Honeywell International Inc., Charlotte, NC (US)
Filed by Honeywell International Inc., Charlotte, NC (US)
Filed on Jun. 7, 2021, as Appl. No. 17/340,982.
Claims priority of provisional application 63/141,078, filed on Jan. 25, 2021.
Prior Publication US 2022/0239199 A1, Jul. 28, 2022
Int. Cl. H02K 9/16 (2006.01); H02K 9/22 (2006.01); H02K 5/20 (2006.01); H02K 21/14 (2006.01); H02K 11/33 (2016.01); B64D 35/02 (2006.01); B64D 27/24 (2006.01)
CPC H02K 9/16 (2013.01) [H02K 5/207 (2021.01); H02K 9/227 (2021.01); H02K 11/33 (2016.01); H02K 21/14 (2013.01); B64D 27/24 (2013.01); B64D 35/02 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An advanced electric propulsion system, the system comprising:
a housing;
an electric motor within the housing;
a motor drive coupled to the electric motor;
a thermal management system that comprises:
a manifold-mini-channel heat sink (MMHS) integrated into the housing, wherein the manifold-mini-channel heat sink comprises:
an inlet manifold having a plurality of air inlets formed in a front of the housing, wherein an air inlet in the plurality of air inlets is respectively coupled to an inlet air passage in a plurality of inlet air passages;
a set of plurality of circumferentially grooved micro-channels formed in the housing and coupled to the air inlets and conductively thermally coupled to stator windings of the electric motor; and
an outlet manifold having a plurality of air outlets formed at a back of the housing and coupled to the set of plurality of circumferentially grooved micro-channels, wherein an air outlet in the plurality of air outlets is respectively coupled to an outlet air passage in a plurality of outlet air passages, wherein the set of the plurality of circumferentially grooved micro-channels connects each inlet air passage in the plurality of inlet air passages to an adjacent outlet air passage in the plurality of outlet air passages;
wherein the electric motor comprises Pseudo-Edge Wound (PEW) stator windings configured to provide a low thermal resistance path from the stator of the electric motor to the housing;
wherein the PEW stator windings comprise a high temperature tolerant thermally conductive electrical insulator.