Outboard motor transmission with coaxial input and output shafts

US12312059B2 · kind B2 · utility

Assignees

• ZF MARINE PROPULSION SYSTEMS MIRAMAR, LLC · US
• ZF Padova S.r.l. · IT
• Gator Tail LLC · US

Inventors

• Keith Stanley · Coral Springs, US
• Drew Orvieto · Plantation Gardens, US
• David A. Friedenberg · Worthington, US
• Andrea Pellegrinetti · Rovereto, IT
• Mattia Caracristi · Isera, IT
• Michele Zottele · Trento, IT
• Kyle Broussard · Loreauville, US
• Blaine L. Broussard · Loreauville, US

Key dates

• Filing date: May 31, 2022
• Grant date: May 27, 2025
• Expiry date: Sep 16, 2043

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B63H2020/323
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A gearcase for a marine propulsion system has an input shaft rotatable about a central axis of rotation and an output shaft coaxially arranged with the input shaft. A clutch assembly is operable between a first clutch position and a second clutch position, wherein, when the clutch assembly is in the first clutch position, the input shaft is coupled to the output shaft for rotating the output shaft in a first rotational direction. When the clutch assembly is in the second clutch position a gear assembly operably connects the input shaft to the output shaft for rotating the output shaft in an opposite second rotational direction. The gearcase can be part of a marine propulsion system, such as an outboard motor for a mud boat. A method of transferring power in a gearcase and a marine propulsion system are also disclosed.