Methods and arrangements for redirecting thrust from a propeller

US8468964B2 · kind B2 · utility

Inventors

• Kevin Daniel Hoberman · Calabasas, US
• Steven Clay Moore · Austin, US

Key dates

• Filing date: Sep 13, 2005
• Grant date: Jun 25, 2013
• Expiry date: Feb 4, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B63H25/48
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Methods and arrangements to redirect a forward thrust generated by a propeller of a watercraft to provide a non-forward thrust are disclosed. More specifically, embodiments comprise a control surface to redirect the forward thrust from the propeller. Based upon a position (i.e., distance and orientation) of the control surface with respect to the propeller, the redirection generates the non-forward thrust or thrusts. By redirecting a component of the forward thrust back toward the bow, the net forward or reverse, port or starboard thrusts and rotational thrust can be adjusted in fine increments. For instance, by adjusting the amount of prop wash hitting the control surface, the magnitude of the redirected thrust from the control surface can be adjusted. Further, adjusting the angle of the control surfaces adjusts the direction as well as magnitude of a reverse thrust component. The net thrust can be in any direction and rotational.