US 12,215,693 B2
Permanent magnet rotor for an axial flux motor
Vigel Russalian, Macomb, MI (US)
Assigned to Gates Corporation, Denver, CO (US)
Appl. No. 17/789,769
Filed by GATES CORPORATION, Denver, CO (US)
PCT Filed Jan. 8, 2021, PCT No. PCT/US2021/012567
§ 371(c)(1), (2) Date Jun. 28, 2022,
PCT Pub. No. WO2021/142177, PCT Pub. Date Jul. 15, 2021.
Claims priority of provisional application 62/959,010, filed on Jan. 9, 2020.
Prior Publication US 2023/0044524 A1, Feb. 9, 2023
Int. Cl. F04D 1/00 (2006.01); F01P 5/12 (2006.01); F04D 13/02 (2006.01); F04D 13/06 (2006.01); F04D 29/22 (2006.01)
CPC F04D 13/064 (2013.01) [F01P 5/12 (2013.01); F04D 1/00 (2013.01); F04D 13/026 (2013.01); F04D 13/0646 (2013.01); F04D 13/0666 (2013.01); F04D 29/22 (2013.01); F05D 2230/22 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An axial flux motor water pump comprising:
a housing;
a cover attached to the housing;
a stator mounted within the housing, the stator comprising a plurality of stator poles mounted in a ring, each stator pole comprising an electric wire winding;
a rotor journaled to the housing in cooperating relation to the stator on a single bearing, the rotor comprising a rotor shaft having a rotational axis and either a plurality of magnets or a ring magnet, wherein the plurality of magnets or the ring magnet are mounted on a frame on a first end of the rotor shaft in cooperative relation to the stator poles,
an impeller fixed to a second end of the rotor shaft;
a seal between the rotor and the housing whereby the stator and the plurality of magnets or the ring magnet are in a dry zone, the plurality of magnets or the ring magnet and the frame being manufactured in a sintering process comprising:
adding a first material to a die,
adding a second material to the die above the first material,
compressing the first material and the second material within the die, and
magnetizing the second material;
a condensate chamber and reservoir comprising a vent hole and a drain hole, wherein the condensate chamber and reservoir is positioned to collect any fluid that may leak past the seal, and the vent and drain hole are open to ambient;
the stator enrobed in thermal potting within the housing; and
power electronics contained in the cover.