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US 2018/0006517 A1Published application
Motor air flow cooling
AssigneeAeroVironment, Inc.
InventorsLindsay Aspinwall SHEPPARD, Bart Dean HIBBS
Life of this patent
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Abstract
In one possible embodiment, an aircraft electric motor cooling system is provided having an airflow path through a spinner which includes a first airflow path between an inner rotor and a stator, a second airflow path between an outer rotor the stator and a third airflow path along an outer surface of the outer rotor.
Claims27
An aircraft electric motor cooling system comprising:
- a) an airflow path through a spinner comprising:
- i) a first airflow path between an inner rotor and a stator;
- ii) a second airflow path between an outer rotor and the stator;
- and
- iii) a third airflow path along an outer surface of the outer rotor.
2 more elements
An electric aircraft motor comprising:
- a) an inner rotor connected with an outer rotor;
- b) a stator comprising a winding located between the inner rotor and the outer rotor;
- c) a spinner;
- and
- d) a cooling system comprising:
- i) an airflow path through the spinner comprising:
- (1) a first airflow path between an inner rotor and a stator;
- and
- (2) a second airflow path between an outer rotor the stator.
6 more elements
A method for air cooling an electric aircraft motor comprising:
- a) passing an air flow through a spinner;
- b) directing a first portion of the air flow to flow between the stator and the inner rotor;
- c) directing a second portion of the air flow to flow between the stator and the outer rotor;
- and
- d) directing a third portion of the air flow to flow along an outer surface of the outer rotor.
2 more elements
Dependencies are inferred from the claim text.