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US 9,022,822 B2Granted
Amphibious vehicle electric drive system
OwnerStanley C Hewittinventor
Life of this patent
Estimating the term…
Abstract
This invention relates to an amphibious vehicle and especially to an amphibious vehicle having twin internal combustion engines propelling the vehicle in water with a pair of water jet drives and propelling the vehicle on land with one of the same engines having an electric generator powering a pair of electric motors each coupled to a track assembly. Each electric motor and each air brakes are controlled separately to steer and brake the track assemblies.
Claims14
An amphibious vehicle comprising:
- a vehicle hull having a pair of track assemblies, each said track assembly being movable between a raised resting position and a lowered operative position;
- at least one internal combustion engine mounted in said vehicle hull coupled to a marine transmission driving a water jet drive attached to said vehicle hull for propelling said vehicle hull through water when both said track assemblies are in a raised resting position;
- an electric generator coupled to and driven by said at least one internal combustion engine;
- a pair of electric motors powered by said electric generator, one said electric motor coupled to each said track assembly for driving the track assembly to propel said vehicle hull on land when said track assemblies are in a lowered operative position;
- a disk brake coupled to each said track assembly for selectively braking each said track assembly for braking and steering said vehicle hull;
- and
- an electric motor control for remotely controlling each said electric motor to selectively drive each track assembly for propelling and steering said vehicle hull;
- whereby said amphibious vehicle is propelled in water by said water jet drive powered by said at least one internal combustion engine and propelled on land by said pair of track assemblies coupled to said electric motors and powered by said electric generator.
5 more elements
An amphibious vehicle comprising:
- a vehicle hull having a pair of track drive assemblies, each said track drive assembly being movable between a raised rest position and a lowered operative position;
- a pair of internal combustion engines mounted in said vehicle hull, each said internal combustion engine being coupled to a water jet drive attached to said vehicle;
- an electric generator coupled to and driven by one of said pair of internal combustion engines;
- a pair of electric motors powered by said electric generator, one said electric motor coupled to each said track assembly for driving the track assembly to propel said vehicle hull on land when said track assemblies are in a lowered operative position;
- an air brake coupled to each said track assembly for selectively braking each said track assembly for braking and steering said vehicle hull;
- a compressed air source operatively connected to each said air brake;
- and
- an electric motor control for remotely controlling each said electric motor to selectively drive each track assembly for propelling and steering said vehicle hull;
- whereby said amphibious vehicle is powered in water by said pair of internal combustion engines driving said pair of water jet drives and propelled on land by said pair of electric motors driving said track assemblies.
6 more elements
Dependencies are inferred from the claim text.