US 12,407,221 B2
Air flow control apparatus
Enric Soro Juan, Coventry (GB); Tiago Cesa, Coventry (GB); Alexandros Michaelides, Coventry (GB); and Madhavan Gopal, Coventry (AF)
Assigned to JAGUAR LAND ROVER LIMITED, Coventry (GB)
Appl. No. 18/009,567
Filed by JAGUAR LAND ROVER LIMITED, Coventry (GB)
PCT Filed Jun. 11, 2021, PCT No. PCT/EP2021/065807
§ 371(c)(1), (2) Date Dec. 9, 2022,
PCT Pub. No. WO2021/250248, PCT Pub. Date Dec. 16, 2021.
Claims priority of application No. 2008946 (GB), filed on Jun. 12, 2020.
Prior Publication US 2023/0216377 A1, Jul. 6, 2023
Int. Cl. H02K 9/06 (2006.01)
CPC H02K 9/06 (2013.01) 13 Claims
OG exemplary drawing
 
1. A rotor end member for conveying air through a rotor of an electric machine, the rotor end member comprising:
at least one air inlet aperture for conveyance of air into one or more first rotor apertures formed in a radially inner section of the rotor;
at least one air outlet aperture for discharging air from one or more second rotor apertures formed in a radially outer section of the rotor; and one or both of:
at least one first flow guide for directing air into the or each air inlet aperture, the first flow guide comprising a first guide surface facing in a first circumferential direction and oriented at an acute angle relative to a longitudinal axis of the air inlet aperture; and
at least one second flow guide for drawing air into the or each air inlet aperture, the second flow guide comprising a second guide surface facing in a second circumferential direction and oriented at an acute angle relative to a longitudinal axis of the air inlet aperture.