Back to results
US 6,887,115 B2Granted
Propulsion means for a boat
OwnerGunnar Borgliinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerGunnar Borgliinventor
Estimating the term…
A propulsion aggregate for boats of planing type is disclosed. The aggregate (10) comprises at least one inboard engine (5) disposed in a supporting frame (6), at least one first drive shaft (1) having a propeller (3), which shaft (1) extends through the boat hull (11) at the stern section of the boat, at least one rudder (12), and a second drive shaft (2) that extends through the stern section of the boat and drives a water turbine (4). The first drive shaft (1) is in direct connection with the power take-off (7) of the engine (5) via a releasable coupling (8) and said first drive shaft (1) is in operation during forward propulsion above a certain speed only, and the second drive shaft (2) is connected to the power take-off (7′) of the engine (5) and is arranged at a higher level than the propeller (3) and said second drive shaft (2) is in operation at forward propulsion at low speeds and at reverse motion.
A propulsion aggregate for boats of planing type, which aggregate comprises at least one inboard engine disposed in a supporting frame, at least one first drive shaft having a propeller, which shaft extends through the boat hull at the stem section of the boat, and at least one rudder, wherein the aggregate comprises a second drive shaft that extends through the stem section of the boat and drives a water, turbine, the first drive shaft is operatively coupled to a power take-off of the engine via a releasable coupling and said first drive shaft is in operation during forward propulsion above a certain speed only, and the second drive shaft is connected to a power take-off of the engine and is arranged at a higher level than the propeller and said second drive shaft is in operation at forward propulsion at low speeds and at reverse motion of the boat.
Dependencies are inferred from the claim text.