Abstract: The present invention provides a power train for an amphibian operable in land and marine modes. The power train including a prime mover, a first land propulsion device, a first marine propulsion device, and a speed change transmission, wherein the prime mover is arranged to drive the first land propulsion device via the speed change transmission in land mode, and at least a portion of the prime mover is located between the speed change transmission and a rearward most part of the amphibian, with the speed change transmission located spaced ahead of the prime mover by a selected distance using one or more drive shaft(s).

Abstract: A drilling platform for amphibious operations includes: a base, wherein drive tracks are arranged on both sides of the base, a propeller is disposed at a rear end of the base, and a driving assembly is disposed inside the base; two support cylinders are respectively disposed at two ends of the base; each of the support cylinders contains a sub-cylinder; a pushing cylinder is arranged on a bottom surface of the partition plate; a buoyancy adjustment assembly is provided at a bottom of the base, so as to provide buoyancy support for the base when the base is transferred from land to water. The present invention is suitable for drilling construction of pile foundations of water and land buildings, bridge piers, and transmission line electric tower pile foundations, as well as drilling of oil wells, wherein the drilling platform construction process at different drilling points is omitted.

Abstract: An amphibious vehicle such as a tug boat, comprising a running gear configured to be at least positioned in a deployed position suited to the rolling of the vehicle, and at least one retracted position suited to the navigation of the vehicle. The running gear comprises a fairing element rigidly connected to the running gear, so that the fairing element advantageously serves as an anti-projection device in the deployed position of the running gear. According to one option, the vehicle comprises a semi-rigid shell.

Abstract: A chassis system of an amphibious remote control vehicle is provided, including a vehicle chassis and a hull form chassis, the vehicle chassis comprises a first joint portion and a second joint portion. The width of one end of the hull form chassis is smaller than that of one other end of the hull form chassis, the hull form chassis comprises a third joint portion being corresponding to the first joint portion and two fourth joint portions being corresponding to the second joint portion. The hull form chassis comprises a hull form chassis centerline, the hull form chassis centerline extends obliquely to two sides to form two inclined surfaces, the first joint portion is engaged with the third joint portion, and the second joint portion and the two fourth joint portion are combined by a fixing member.

Abstract: A streamlined amphibious, catamaran yacht is provided that may serve military or civilian purposes as a passenger or cargo carrying truck, limousine, bus, motor home or recreational vehicle on land, and extend those same functions on water, while matching the functionality and performance of similar length boats. The amphibious yacht includes a continuous reveal on the hull bottom from bow to transom that separates two asymmetric catamaran hulls. This reveal, or hull tunnel, may enhance sea stability and maneuverability, and create lift that helps the hull achieve plane and attain higher water speeds.

Abstract: An amphibious vehicle includes: a hull (1) having a longitudinal axis; an aquatic propulsion element; a terrestrial propulsion element (5a, 5b) mounted on arms (4a, 4b) pivoting about an axis substantially parallel to the longitudinal axis of the hull, and capable of assuming a stowed position when the vehicle moves over water using the aquatic propulsion element, and an extended position in which the vehicle can move on the ground using the terrestrial propulsion element. In the stowed position, the arms (4a, 4b) extend into cavities (3a, 3b) formed in the hull (1), and a portion of the arms (4a, 4b) defines a lid that at least partially closes the cavity (3a, 3b) in the longitudinal direction of the hull bottom (2).

Abstract: An amphibious vehicle power train having an engine (2) with an output shaft (4), driving an input member (6) of a variable speed change transmission (11). The speed change transmission, which may be a continuously variable transmission is arranged to drive road wheels through an output member (8). The engine also drives a marine propulsion unit (24). The axis of the output member (8) is above the axis of the input member (6). Four wheel drive may be provided (FIG. 2).

Abstract: A streamlined amphibious, catamaran yacht is provided that may serve military or civilian purposes as a passenger or cargo carrying truck, limousine, bus, motor home or recreational vehicle on land, and extend those same functions on water, while matching the functionality and performance of similar length boats. The amphibious yacht includes a continuous reveal on the hull bottom from bow to transom that separates two asymmetric catamaran hulls. This reveal, or hull tunnel, may enhance sea stability and maneuverability, and create lift that helps the hull achieve plane and attain higher water speeds.

Abstract: The amphibious vehicle is a motorized vehicle capable of travel on land as well as in the water. The amphibious vehicle has a boat-like hull and a caterpillar track assembly mounted along each side by a respective pair of rotating supports. The tracks are arranged so that the tracks can be rotated between a lowered position supporting the amphibious vehicle and providing traction and propulsion during land operation, and a raised position, where the tracks rest vertically above the hull's deck during marine operation. With the caterpillar track assemblies in the raised position, the caterpillar track assemblies are fully removed from the water to improve performance and maneuverability therein. The track assemblies are hydraulically driven to rotate the wheels and tracks between the lowered and raised positions.

Abstract: An amphibious vehicle has retractable wheels (2, 3) attached to hubs (2), and a planing hull (10, 11, 3). Front wheels are arranged to be steered by a power assisted transversely mounted element (16), which may be a rack and pinion unit. The element may be linked to the wheels by links (14, 14?), which fold up to position (14?) when the wheels are retracted. Actuating rod (28) is mounted to said element, and arranged for transverse movement. A flexible coupling means, such as cable (34) and sleeve (36), connects rod (28) to a steerable part (42, 4) of a marine propulsion unit, to effect marine steering. Road and marine steering may be operable simultaneously. More than one front steered axle, and/or marine propulsion unit, may be fitted. The steering system is readily adapted to all kinds of power assisted steering, and also to “steer by wire”.

Abstract: A power train configuration for an amphibious vehicle especially well suited for sit-astride applications. A prime mover drives a marine propulsion unit and/or at least one road wheel wherein the such road wheel is driven through a speed-change transmission. The speed-transmission is positioned above or below the axis of the prime mover's output shaft and preferably such that its input and output shafts are aligned at an angle of up to 90 degrees relative to the vehicle's longitudinal and lateral axes and/or the axis of the prime mover's output shaft.

Abstract: An amphibious vehicle has retractable road wheels to allow planing over water. Power to the road wheels is disconnected automatically as the wheels are retracted. This may be achieved through a cable attached to a suspension rocker arm to disconnect a dog clutch attached to the input shaft of a differential as the wheels are retracted; and vice versa. The system may be fitted to a steered axle or to any suitable retractable suspension system.

Abstract: An amphibious vehicle, which may plane on water, has at least one pair of front or rear wheels having wheel suspensions fitted with an anti-roll bar (46). Said bar rotates upwards as the wheels are stowed above the waterline for use of the vehicle on water. The wheels may be driven wheels, and may be steered by pivotable steering link (20); or passively steered. Anti-roll bar (46) may be mounted to the vehicle by at least one bearing (48), so that the bar rotates about a single axis when the wheels are retracted. The bar passes through watertight outside bodywork (60), where it may be sealed by an elastomeric seal (62). Said seal may comprise a lip portion (72), sealing against the bar itself or against a ring or a collar (68) attached thereto. The ring or collar may be continuously welded around the anti-roll bar.

Abstract: Amphibious vehicle having road wheels which are retractable to allow planing. Each wheel suspension is protractable through a gap in the planing surface of the hull. To reduce hydrodynamic drag and improve marine handling, covers are provided which cover such gaps when the wheels are retracted. These covers may be hinged parallel to a longitudinal, or to a transverse, axis of the vehicle or may be otherwise connected to the hull.

Abstract: An amphibious vehicle (1), in the form of an inflatable boat (2) has a self propelled and steerable retractable under-carriage system, enabling the vehicle to enter and exit the water under its own power. The swing of the wheels and their supporting struts (3) & (4) occurs external to the hull of the vehicle. A steerable nose leg (3) is raised or lowered by an actuator situated inside the boat. Stowage is accomplished within the lines of an inflatable craft by the incorporation of fibreglass fairings (5) & (6) sized to match the main inflated tubes (7). Power is provided to the back wheels (4) via an internal drive train within the legs (4). All terrain balloon type tyres are used to enable the boat to travel over a variety shoreline terrain. A steering system engages with the fornt wheel when the wheel is in its extended position. Motive power is provided by a separate aircooled motor.

Abstract: Amphibious vehicle (40, FIG. 7) comprises engine (2) with its crankshaft aligned with front and rear axis (X) of the vehicle; transmission (3); and differential (4) offset from the transmission. The differential has front and rear outputs (21, 16), whose axes are parallel to axis (X). These outputs drive at least one retractable front road wheel (42, FIG. 7) ahead of the front passenger seats, and corresponding retractable rear road wheel(s) (48, FIG. 7) behind the rear passenger seats. The marine drive power take off (PTO) may be taken from the engine timing end (7), as a sandwich PTO between engine and transmissions (28, FIG. 5), or from the transmission (38, FIG. 6). Front and rear differentials (22 and 17) may be provided. Decouplers may be provided in front and rear road wheel outputs, and in the marine drive (10). The engine may be mounted to the rear of the passenger seat(s).

Abstract: A PTO (power take off) sprocket 65 driving belt or chain 80 is attached to input shaft 42 of a transversely mounted vehicle gearbox 40. The driving face of sprocket 65 is outside casting 52; its driven part 58 is attached to sprocket 46 by bolts 59, running in bearing 64 in flanged spigot 55. Shaft 42 is driven through sprocket 46 by belt or chain 48. Decouplers may be fitted to wheel drive shafts, and to the PTO drive at 76. FIGS. 3, 4, and 6 show automatic and manual gearboxes mounted alongside engines; FIG. 5 also shows marine jet drive 88, bevel gears 84, and Cardan shaft 82. FIG. 7 shows in-line transmission 240. FIG. 8 shows a sandwich PTO 365 with manual gearbox 341 and clutch assembly 336; or automatic gearbox 341 and torque converter 336. Applications are disclosed to semi-automatic, sequential shit automated manual, and CVT gearboxes.

Abstract: A suspension system for an amphibious vehicle is described, the suspension system being able to be locked in either a lowered or in a retracted position according to whether the vehicle is on land or in water, respectively, the suspension system comprising: a main suspension arm (14) pivoted to a vehicle hull at one end thereof (20), the arm having a rotatably mounted road wheel (12) thereon at an opposite end thereof; moving means, (30) operably attached to said pivoted main suspension arm to enable said arm and said road wheel to be retracted relative to said hull; an upper suspension link (120) operably and pivotally connected to the road wheel end of said main suspension arm, said upper suspension link having a pivoted joint (60) intermediate its, ends; said upper suspension link being pivoted on said hull at an axis (52) remote from said pivoted joint; said upper suspension link being operably engagable with suspension position locking means (122, 130, 132, 136, 138) in both lowered and retracted positio

Abstract: A recreational vehicle which has a body which may be configured for land use or as a boat haul, the vehicle also having a pair of non interconnected spaced apart front wheels, an endless track located rearwardly of an intermediate of the spaced apart front wheels, a motor operatively connected to a drive at least the endless track and optionally the front wheels. The vehicle is able to handle most types of snow and land conditions and can be configured to operate in water if so desired.

Abstract: A recreational vehicle which has a body which may be configured as a boat hull, a pair of spaced apart front wheels, an endless track located rearwardly of the spaced apart front wheels, drive means operative to drive at least the endless track, a steering means connected to the spaced apart front wheels. The vehicle is able to handle most types of snow and land conditions and can also be configured to operate in water.