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US 6,712,652 B2Granted
Power train
AssigneeGibbs Technologies Limited
InventorTerence James Roycroft
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AssigneeGibbs Technologies Limited
InventorTerence James Roycroft
Estimating the term…
Amphibious vehicle power train 10 comprises a prime mover 12, transfer drive 14, transmission 16, and differential 17. A marine drive power take-off (PTO) comprises chain, belt, or gear drive, and optional decoupler 22. Rotational axis 65 of marine drive shaft 64 and impeller shaft 66 of centrifugal pump 68 are substantially perpendicular to longitudinal vehicle axis 11. The driven road wheels may be the rear wheels. Alternative embodiments comprise PTO drive from differential 17 (FIG. 3); from the crankshaft timing end (80, FIG. 4); or by a sandwich PTO between engine and transmission (56, FIG. 5). FIG. 6 shows PTO's from the gearbox of a motorcycle type power train, driving centrifugal pump 102 and differential 90. At least one further decoupler may be provided in wheel driveshafts 23, 25, to disconnect drive thereto while the amphibian is used in marine mode. The prime mover 12 may be an engine or may be an electric motor.
An amphibious vehicle having a power train, the power train comprising a prime mover, a transmission and a marine propulsion means, the transmission having a power take-off arranged to drive said marine propulsion means only, in which the marine propulsion means has an impeller wherein a rotational axis of power take-off and a rotational axis of the impeller are both substantially perpendicular to the longitudinal axis of the vehicle and extend generally in a lateral direction of the vehicle.
A power train for an amphibious vehicle having a drive line to road wheels, the power train comprising:
Dependencies are inferred from the claim text.