Patent ID: 9157417
Filing Date: 2015-10-13
Classification: B63H,F03D,F05B,Y02E,Y02T

Abstract:
1. A variable foil machine for harnessing energy from fluid flow and propelling fluids and crafts, comprising: a variable wing, having a leading edge and a trailing edge, for energy capture; a leading support; a trailing support; a trailing guide, moveably connected to the trailing support; a trailing draft member, securely connected to and along the trailing edge of the variable wing and securely connected to the trailing guide; and a leading draft member, securely connected to and along the leading edge of the variable wing and securely connected to the leading support whereby, upon effective fluid flow from the leading edge to the trailing edge, the variable wing oscillates with a cyclic camber reversal at the end of each stroke thereby causing a reciprocating movement of the trailing draft member, and the trailing guide, together as a unit.