Abstract: An invention is provided for an internal combustion engine having a trunnion twin firing cylinder put in tandem for application of 4-6-8 cylinders as needed, including three moving parts, cylinder, piston rod, and crank that fires two pistons during up stroke while having a wet sump, cylinders are perpendicular to the crank and are enclosed at the bottom allowing four strokes every revolution with double firing pistons. The pistons do not require a wrist pin, and the pistons and rod assembly are one piece, pushing straight on the crank throw, eliminating piston side thrust, and reducing conical wear to rings with blow by. A conventional four cylinder engine at 1000 rpm fires 4,000 times in one minute. The trunnion twin firing cylinder engine with four pistons fires 8,000 times in one minute.

Abstract: An internal combustion engine twin power unit that includes a crossover passage fluidly connecting a first cylinder to a second cylinder such that an air-fuel mixture introduced in the first cylinder is transferred to the second cylinder via the crossover passage, and wherein an ignition in any cylinder causes combustion of the air-fuel mixture in both cylinders via the crossover passage. Also included is a rod assembly, which is connected to the first piston and the second piston which are disposed in the cylinders. The rod assembly rigidly fixes the first piston and the second piston in a fixed spatial relation to each other. In addition, an intake port is included that is in fluid communication with both the first cylinder and the second cylinder.

Abstract: An invention is provided for an internal combustion engine twin power unit. The invention includes a crossover passage fluidly connecting a first cylinder to a second cylinder such that an air-fuel mixture introduced in the first cylinder is transferred to the second cylinder via the crossover passage, and wherein an ignition in any cylinder causes combustion of the air-fuel mixture in both cylinders via the crossover passage. Also included is a rod assembly, which is connected to the first piston and the second piston which are disposed in the cylinders. The rod assembly rigidly fixes the first piston and the second piston in a fixed spatial relation to each other. In addition, an intake port is included that is in fluid communication with both the first cylinder and the second cylinder. To control air passage within the intake port, a one-way valve is included.

Abstract: An internal combustion engine having one or more modules each employing fluidly-communicating, oscillating, power cylinder and air cylinder. The power and air cylinders oscillate about separate, individually supporting sets of trunnions positioned non-linearly with respect to each other and permitting the passage of air therethrough. The air cylinder includes a pre-combustion chamber for the purpose of withholding the delivery of a portion of compressed air to the power cylinder until all spent gases have been evacuated from the power cylinder. The air in the pre-combustion chamber enhances the delivery of fuel from a fuel delivery system into the power cylinder. The power cylinder includes multiple barrels which share a common combustion chamber. Each barrel houses a reciprocating piston linked to discrete piston rods mechanically joined about a single crank throw. A separate air crank throw is linked to an air piston in the air cylinder.

Abstract: A two stroke internal combustion engine having an intake piston which feeds air to an adjacent power piston. Both the intake piston and the power piston are held in oscillating cylinder assemblies and the piston rods are integral with the pistons so that the piston rod is always in line with the piston. The cylinder assemblies are both supported by trunnions and the air from the intake cylinder assembly is fed through an opening in the center of the two trunnions between the intake cylinder assembly and the power cylinder assembly. Preferably the rod portion of the intake piston and rod assembly is shorter than the rod portion of the power piston and rod assembly.

Abstract: A valve assembly mounted in the head of an internal combustion engine. The valve is driven on the stem thereof in an arcuate motion so that the valve does not oscillate along its longitudinal axis, but instead swings slightly away from its longitudinal axis during each reciprocation. The valve is preferably driven not only downwardly, but also upwardly to permit a high rate of oscillation.

Abstract: A connecting bracket for connecting a lawn mower to a powered vehicle such as a motorcycle or the like including a first elongated rigid bracket for affixment to a lawn mower, an engaging element fixedly secured to the first bracket and providing an open-ended chamber therein, a second elongated rigid bracket for affixment to a powered vehicle, a ball element fixedly secured to the second bracket and adapted to be captured by the open-ended chamber, and means for removably retaining a portion of the ball element within the open-ended chamber.