Internal combustion engine , improvements in design and efficiency
AssigneeGraeme Harold Newman
InventorGraeme Harold Newman
Life of this patent
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Abstract
The converting of linear motion into rotational energy when using the cylinders and pistons of an internal combustion engine without the use of a crankshaft. The replacement with dual high lead cam-screws and dual cam-followers allows for the efficient use of a complete combustion stroke without the resistance from the crankshaft at top dead center, and a greatly reduced resistance for the return stroke as there is no crankshaft turning resistance at the outer limit of the piston stroke.
Claims4
A horizontally opposed engine that uses a stepped piston assembly in which two stepped pistons are connected via a central shaft device comprising:
- a central shaft that is free to rotate at its central axis at all times, and translates linear motion into rotational energy by an overrunning clutch transitorily fixing a position of one half of the central shaft followed by the transfer of energy to dual cam-followers acting on dual spiral high lead slotted cam screws that permit a thick-wall tube to rotate;
- which then creates a toothed gear wheel on its axis to transmit its rotation to a transmission;
- whereupon the overrunning clutch releases its fixation;
- wherein the stepped piston is two pistons in one disposed in different sized cylinders having their own intake and exhaust valves and spark plugs.
Dependencies are inferred from the claim text.