Patent · US Active

Dual power helicopter without a tail rotor

US7546976B2 · kind B2 · utility

2Cited by
4References
4Claims
0Family size

Inventor

Key dates

Filing dateSep 25, 2006
Grant dateJun 16, 2009
Priority date—
Expiry dateDec 12, 2027

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB64C27/14
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A dual power helicopter without a tail rotor. The dual power helicopter of present invention primarily uses two power devices which can be rotated in opposite directions to control the flight of the helicopter. The two power devices are rotated in the opposite directions by steering gears from a same engine, such that the engine power can be completely transmitted to the two power devices, enabling the engine power to be completely developed, thereby improving performance of the helicopter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.