AMPHIBIOUS VEHICLE SPEED CHANGE TRANSMISSION ARRANGEMENT

摘要

Amphibious vehicle (10, fig. 1) power train comprises prime mover (26) driving marine propulsion unit (36) and a road transmission comprising speed change transmission (32), which may be a continuously variable transmission; and is mounted with both input and output shafts aligned perpendicular to both longitudinal and lateral axes of the vehicle. The power train may also comprise a transfer case (28, fig. 2) and a bevel gear box (30). The prime mover may be located longitudinally or transversely in the vehicle. At least one road wheel may be retractable above the water line for use on water, particularly where the vehicle is configured for planing. The transmission shafts may be vertical. Motor (110) drives a reverse gear for road use. Differential (34) may be provided where at least two road wheels are driven. The vehicle is suitable for a user (12, fig. 1) in a sit-astride position.