Title:
ELECTRIC MARINE SURFACE DRIVE
Document Type and Number:
WIPO Patent Application WO/2011/139428
Kind Code:
A3
Abstract:
A marine articulated surface drive propulsion system is provided with a housing construction that allows the direct application of an electric motor for power onto the drive structure. Alternatively, it can include a power transmitting element for reducing the rate of rotation or the position of the motor shaft with respect to the propeller shaft. The drive can be retrofitted to existing boat hulls and does not require a dedicated hull. The electric motor can be fitted to the surface drive housing on the inside of the transom. It is contemplated that an electric motor with very small dimensions can be mounted in the drive thrust tube and ball socket, eliminating the need for U joints. Notably, if the propeller is left free wheeling it becomes the propulser for the electric motor to become a generator and recharge the batteries.
Inventors:
ROLLA PHILIP (CH)
Application Number:
PCT/US2011/030428
Publication Date:
March 15, 2012
Filing Date:
March 30, 2011
Export Citation:
Assignee:
TWIN DISC INC (US)
ROLLA PHILIP (CH)
ROLLA PHILIP (CH)
International Classes:
B63H21/17; B63H20/08; B63H23/06; B63H25/22
Domestic Patent References:
| WO2007001830A1 | 2007-01-04 |
Foreign References:
| US5580287A | 1996-12-03 | |||
| US20060057910A1 | 2006-03-16 |
Attorney, Agent or Firm:
DURST, Jay, G. (S.C.840 North Plankinton Avenu, Milwaukee WI, US)
Download PDF: