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US 8,026,644 B2Granted
Electric propulsion system useful in jet-type model airplanes and UAVS
OwnerRobert S. Violettinventor
Life of this patent
Estimating the term…
Abstract
A power plant for a jet-type model airplanes and UAVs includes an electric motor and a cover. The cover receives a portion of the electric motor and a sleeve into which the electric motor is inserted. The sleeve has a plurality of fins to dissipate heat and create openings into the cover. Air from the fan rotor passes through the openings to cool an electronic speed control member and exits a rear opening in the cover. The cover may also have additional openings for air to enter into the cover.
Claims19
A power plant for a model jet airplane comprising:
- an electric motor having a plurality of cooling fins circumferentially surrounding the electric motor, each of the cooling fins having an outer surface;
- a cover having an longitudinal opening extending between a front end and a rear end, the front end configured to receive the electric motor and cooling fins therein, the outer surface of the cooling fins engaging at least a portion of an inner surface of the cover, the rear end of the cover having an opening;
- and
- an electronic speed control member electrically connected to the electric motor and disposed within the longitudinal opening of the cover,
- wherein during operation air enters the front end of the cover between each of the cooling fins and a third opening in the cover between the front and rear ends to cool the electronic speed control member and exits the opening in the rear end of the cover.
2 more elements
A power plant for a model jet airplane comprising:
- an electric motor having a plurality of cooling fins circumferentially surrounding the electric motor, each of the cooling fins having an outer surface;
- a cover having an longitudinal opening extending between a front end and a rear end, the front end configured to receive only a portion of the electric motor and the plurality of cooling fins therein, a portion of the outer surface of the cooling fins engaging at least a portion of an inner surface of the cover at the front end creating a plurality of openings at the front end of the cover, and the rear end of the cover having an opening;
- and
- an electronic speed control member electrically connected to the electric motor and disposed within the longitudinal opening of the cover between the electric motor and the rear end of the cover.
1 more element
An power plant for a model jet airplane comprising:
- an electric motor having a plurality of cooling fins circumferentially surrounding the electric motor, each of the cooling fins having an outer surface;
- an electronic speed control member electrically connected to the electric motor;
- and
- a plurality of blades operationally connected to the electric motor;
- wherein the plurality of cooling fins act as ports for air from the plurality of blades to cool the electronic speed control member during operation.
2 more elements
Dependencies are inferred from the claim text.