US 11,986,759 B2
Electrostatic air filter for electric vehicle motors
Shailesh N. Joshi, Ann Arbor, MI (US); Ryohei Tsuruta, Ann Arbor, MI (US); and Umesh Gandhi, Farmington Hills, MI (US)
Assigned to TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., Plano, TX (US)
Filed by Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed on Nov. 30, 2020, as Appl. No. 17/107,504.
Prior Publication US 2022/0168680 A1, Jun. 2, 2022
Int. Cl. B01D 46/00 (2022.01); B01D 46/42 (2006.01); B60K 7/00 (2006.01); B60K 13/02 (2006.01); B60K 13/04 (2006.01)
CPC B01D 46/0032 (2013.01) [B01D 46/4245 (2013.01); B60K 7/0007 (2013.01); B60K 13/02 (2013.01); B60K 13/04 (2013.01); B01D 2279/40 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A motor, comprising:
an inlet through which cool air enters the motor;
an outlet through which hot exhaust exits the motor; and
an electrostatic chuck disposed proximate to a ventilation path of the inlet,
wherein, when the electrostatic chuck is energized, particles or debris in the cool air are attracted toward the electrostatic chuck,
such that the particles or debris are removed from the cool air before the cool air enters the motor,
wherein the particles or debris comprise metal oxide, semiconductor, semiconductor oxide, or organic material.