US 11,923,755 B2
Lubricant supported electric motor including a bearing structure
Donald Remboski, Ann Arbor, MI (US); Jacqueline Dedo, Wolverine Lake, MI (US); Mark Versteyhe, Oostkamp (BE); and Bruno Lequesne, Menomonee Falls, WI (US)
Assigned to Neapco Intellectual Property Holdings, LLC, Farmington Hills, MI (US)
Filed by Neapco Intellectual Property Holdings, LLC, Farmington Hills, MI (US)
Filed on Oct. 8, 2020, as Appl. No. 17/065,800.
Claims priority of provisional application 62/912,130, filed on Oct. 8, 2019.
Prior Publication US 2021/0104937 A1, Apr. 8, 2021
Int. Cl. H02K 9/193 (2006.01); H02K 5/167 (2006.01); H02K 7/08 (2006.01)
CPC H02K 9/193 (2013.01) [H02K 5/1677 (2013.01); H02K 7/088 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A lubricant supported electric motor comprising:
a stator presenting a stator raceway;
a rotor movable relative to said stator about an axis and presenting a rotor raceway disposed in radially spaced and opposing relationship with said stator raceway to define a gap therebetween;
said stator raceway including a bearing structure comprised of a plurality of hydrodynamic surfaces aligned in parallel relationship along said stator raceway and a plurality of hydrostatic pockets disposed in radially recessed relationship relative to said plurality of hydrodynamic surfaces;
a plurality of lubricant supply tubes disposed in fluid communication with said plurality of hydrostatic pockets to deliver a lubricant to said plurality of hydrodynamic pockets and then consecutively to said plurality of hydrodynamic surfaces and said gap for establishing support of said rotor relative to said stator; and
said stator including a drain gutter arranged central to said stator raceway and disposed in radially recessed relationship relative to said plurality of hydrodynamic surfaces and extending circumferentially along said stator raceway in axially spaced relationship with said plurality of hydrostatic pockets.