Parallel Hybrid-Electric Propulsion Systems for Unmanned Aircraft
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United States of America Patent
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Issued Date -
Aug 16, 2012
app pub date -
Feb 15, 2012
filing date -
Feb 15, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An unmanned air vehicle is provided, which includes an airframe and a parallel hybrid-electric propulsion system mounted on the airframe. The parallel hybrid-electric propulsion system includes an internal combustion engine and an electric motor. A hybrid controller is configured to control both the internal combustion engine and the electric motor. A propeller is connected to a mechanical link. The mechanical link couples the internal combustion engine and the electric motor to the propeller to drive the propeller. An alternate unmanned air vehicle includes a second propeller driven by the electric motor. In this alternate unmanned air vehicle, the internal combustion engine is decoupled from the electric motor.
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