Patent ID: 11964223
Assignee: BETA AIR LLC
Field: Chemical engineering (Chemistry)
Classification: CPC B  H  Y | IPC B

Claim 0:
1. An electric propulsion system for an electric, aircraft, wherein the electric propulsion system comprises:
an intake duct configured to intake an airflow;
an inertial air separator configured to separate the airflow into a clean airflow and a dirty, airflow;
a secondary duct channel located downstream of inertial air separator for receiving the dirty airflow;
a primary duct channel located downstream of the inertial air separator and radial inward of the secondary duct channel for receiving the clean airflow; and
a propulsor that includes:
a propeller;
an electric motor configured to drive the propeller, the electric motor comprising:
a stator; and
a rotor;

an inverter configured to power the electric motor, wherein the inverter is disposed between the propeller and the electric motor; and
a heat exchanger coupled to the inverter,

wherein the primary duct channel directs the clean airflow across the stator for cooling the electric motor, and the secondary duct channel directs the dirty airflow to bypass the electric motor and directs the dirty airflow across the heat exchanger for cooling the inverter.