Brunswick Corporation

Daniel J Schlagenhaft

John A Tuchscherer

Mitesh B Sheth

Richard A Davis

Randall J Poirier

Michael A Karls

Roger E Koepsel

Robert B Weronke

Donald F Harry

Michael P Mihelich

Douglas A Kiesling

A torque transfer mechanism for a marine propulsion system provides a connector mechanism, a first torque transfer mechanism, and a second torque transfer mechanism. A plurality of rods can provide the first torque transfer mechanism and a polymer component is shaped to provide the second torque transfer mechanism. All torque below a preselected magnitude is transferred through the first torque transfer mechanism and, for magnitudes of torque above the threshold, torque is transferred by both the first and second torque transfer mechanisms. The connector mechanism has an outer surface that is not used to transfer torque between it and an inner hub of a propulsor.

Dual rate torque transmitting device for a marine propeller

A sound attenuating system is provided which allows a relatively unobstructed airflow conduit to be associated with chambers that reflect various frequencies of sound back towards the source of the sound. The chambers are arranged in a coaxial association with the primary airflow conduit and are sized to reflect a certain range of frequencies of sound. Holes extend through the airflow conduit, in a radial direction, to place the airflow conduit in fluid communication with the chambers which surround portions of the conduit.

Sound attenuator for a supercharged marine propulsion device

A torque transmitting device for use in conjunction with a marine propulsion system provides an adapter that is attached in torque transmitting relation with a propulsor shaft for rotation about a central axis of rotation. The first insert portion is attached in torque transmitting relation with the adapter and a second insert portion is attached in torque transmitting relation with a hub of the propulsor hub which can be a marine propeller or an impeller. A third insert portion is connected between the first and second insert portions and is resilient in order to allow the first and second insert portions to rotate relative to each other about the central axis of rotation. The adapter is shaped to prevent compression of the first, second, and third insert portions in a direction parallel to the central axis of rotation. The relative shapes of the various components and the resilience of the third insert portion, which can be a plurality of titanium rods, provides significant compliance of the device under low torque magnitudes, but at higher torque magnitudes it provides a significantly decreased compliance to facilitate torque transfer between a propulsor shaft and the propulsor hub.

Torque transmitting device for mounting a propeller to a propeller shaft of a marine propulsion system

Growing community of inventors

Fond du Lac, WI, United States of America

Daniel J Schlagenhaft