Power boat drive with single engine and twin stern drives
AssigneeGeared Up Systems, Inc.
InventorRichard D. Carr
Life of this patent
Estimating the term…
Abstract
This boat drive system includes a primary and first and second outboard gearboxes. A drive shaft is connected between the engine and the primary gearbox and parallel shafts are connected between each outboard gearbox and a pair of first and second stern drive units mounted to the transom. The drive system also includes a cooling system provided by cooling pads operatively connected to each gearbox.
Claims9
A drive system for a boat having a hull with a longitudinal axis and a single engine mounted in the hull, the drive system comprising:
- a primary gearbox and opposed first and second outboard gearboxes;
- a drive shaft connected between the engine and the primary gearbox;
- a first shaft connected between the primary gearbox and the first outboard gearbox and a second shaft connected between the primary gearbox and the second outboard gearbox;
- the hull including a transom;
- first and second stern drive units mounted to the transom;
- a third drive shaft connected between the first outboard gearbox and the first stern drive unit through the transom;
- and
- a fourth drive shaft connected between the second outboard gearbox and the second stern drive unit through the transom and the third and fourth drive shafts being operatively connected to the first and second stern drive units;
- at least one gearbox including an associated housing and a cooling pad connected to said housing and supplied with cooling liquid.
A drive system for a boat having a hull with a longitudinal axis and a single engine mounted in the hull, the drive system comprising:
- a primary gearbox and opposed first and second outboard gearboxes;
- a drive shaft connected between the engine and the primary gearbox;
- a first shaft connected between the primary gearbox and the first outboard gearbox and a second shaft connected between the primary gearbox and the second outboard gearbox;
- the hull including a transom;
- first and second stern drive units mounted to the transom;
- a third drive shaft connected between the first outboard gearbox and the first stern drive unit through the transom;
- a fourth drive shaft connected between the second outboard gearbox and the second stern drive unit through the transom and the third and fourth drive shafts being operatively connected to the first and second stern drive units;
- and
- each gearbox housing including upper and lower walls and opposed cooling pads operatively connected to the upper and lower walls of associated housings.
A drive system for a boat having a hull with a longitudinal axis and a single engine mounted in the hull, the drive system comprising:
- a primary gearbox and opposed first and second outboard gearboxes;
- a drive shaft connected between the engine and the primary gearbox;
- a first shaft connected between the primary gearbox and the first outboard gearbox and a second shaft connected between the primary gearbox and the second outboard gearbox;
- the hull including a transom;
- first and second stern drive units mounted to the transom;
- a third drive shaft connected between the first outboard gearbox and the first stern drive unit through the transom;
- and
- a fourth drive shaft connected between the second outboard gearbox and the second stern drive unit through the transom and the third and fourth drive shafts being operatively connected to the first and second stern drive units;
- said first and second stern drive units being tiltably connected to said transom;
- and at least each gearbox includes upper and lower walls and opposed cooling pads operatively connected to the upper and lower walls of associated housings.
Dependencies are inferred from the claim text.