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US 10,605,164 B2Granted
Engine assembly including cam for Z-type engines
OwnerRobert Verne Loomisinventor
Life of this patent
Estimating the term…
Abstract
A compact and efficient Z-twin internal combustion engine is described herein. The Z-twin internal combustion engine comprises horizontally opposed cylinder arrangement that allows for vibration cancellation. The Z-twin engine comprises a central shared cam that drives angled side valves of both the opposing cylinders, thereby greatly reducing moving parts and thus provides a significantly more efficient angled valve approach.
Claims20
A Z-type side valve internal combustion engine comprising:
- a primary drive gear coupled to a camshaft, wherein a first cam of the camshaft is coupled to a first valve of a first cylinder and a second valve of a second cylinder, and wherein a second cam of the camshaft is coupled to a third valve of the first cylinder and a fourth valve of the second cylinder, and wherein a rotation of the primary drive gear alternately opens and closes the first valve and the second valve and opens and closes the third valve and the fourth valve, and wherein the first valve and the second valve are coupled diagonally to the camshaft along a first diagonal axis, and wherein the third valve and the fourth valve are coupled diagonally to the camshaft along the first diagonal axis;
- a first secondary gear rotatably coupled to the primary drive gear, and further coupled to a first piston of the first cylinder, the first secondary gear is configured to rotate from horizontal movement of the first piston within the first cylinder along a first horizontal axis;
- and a second secondary gear rotatably coupled to the primary drive gear, the first secondary gear and the second secondary gear are coupled to diametrically opposite ends of the primary drive gear along a second diagonal axis, wherein the second diagonal axis and the first diagonal axis intersect at an angle, wherein the second secondary gear is further coupled to a second piston of the second cylinder, wherein the second secondary gear is configured to rotate from horizontal movement of the second piston within the second cylinder along a second horizontal axis, and wherein the second cylinder is parallel to, horizontally opposed to, and vertically offset from the first cylinder, wherein the first horizontal axis, the second diagonal axis, and the second horizontal axis together form a Z-shape of the internal combustion engine resulting in a more compact engine with reduced vibrations and higher efficiency.
A Z-twin engine, comprising:
- two horizontally opposed, vertically offset parallel cylinders;
- a central camshaft driving a first cam and a second cam, wherein the first cam is configured to operate a first set of side valves of the cylinders along a first diagonal axis, wherein the second cam is configured to operate a second set of side valves of the cylinders along the first diagonal axis, and wherein the central camshaft comprises a primary drive gear of the engine;
- and two counterbalancing cranks coupled to the cylinders, each crank comprising a secondary gear rotatably coupled to the primary drive gear, and wherein the secondary gears of the cylinders are diametrically opposite to each other, wherein placement of the two cylinders relative to the diametrical orientation of the primary and secondary gear forms a Z-shape, which allows for vibration cancellation in the engine, and wherein the horizontally opposed cylinder position along with the counterbalancing cranks together provide for a compact, simple and efficient engine design.
A Z-type internal combustion engine comprising:
- a primary drive gear coupled to a camshaft, wherein a first cam of the camshaft is coupled to a first valve of a first cylinder and a second valve of a second cylinder diagonally along a first diagonal axis, and wherein a second cam of the camshaft is coupled to a third valve of the first cylinder and a fourth valve of the second cylinder along the first diagonal axis;
- a first secondary gear rotatably coupled to the primary drive gear, and further coupled to a first piston of the first cylinder, the first secondary gear configured to move with the first piston horizontally within the first cylinder along a first horizontal axis;
- a second secondary gear rotatably coupled to the primary drive gear, the first secondary gear and the second secondary gear are coupled to diametrically opposite ends of the primary drive gear along a second diagonal axis, wherein the second secondary gear is further coupled to a second piston of the second cylinder, wherein the second secondary gear is configured to move with the second piston horizontally within the second cylinder along a second horizontal axis, and wherein the second cylinder is parallel to, horizontally opposed to, and vertically offset from the first cylinder, wherein the first horizontal axis, the second diagonal axis, the second horizontal axis together form a Z-shape of the internal combustion engine resulting in a more compact engine with reduced vibrations and higher efficiency;
- a flywheel rotatably coupled to the primary drive gear, wherein the primary drive gear is configured to rotate the flywheel in an opposite direction, wherein a series of planetary gears is rotatably coupled to the flywheel;
- an impeller coupled to an intake side of the engine through the series of planetary gears, wherein spinning of the flywheel spins the planetary gears, which spins the impeller and provides additional air/fuel mixture into the engine thereby supercharging the engine;
- and an expeller coupled to an exhaust side of the engine, wherein spinning of the flywheel spins the expeller and provides a turbine assisted exhaust evacuation for the engine, thereby decreasing an overall temperature of the engine and decreasing exhaust contamination.
3 more elements
Dependencies are inferred from the claim text.