Internal combustion engine
OwnerJ. David Kirkinventor
Life of this patent
Estimating the term…
Abstract
The radial internal combustion engine has two pairs of opposed cylinders arranged on axes at 90 degrees to one another. Each pair of cylinders has opposed pistons, interconnected by a piston rod and scotch-yoke assembly. A piston rod is rigidly connected to each piston and extends inwardly to a heel having a load face transverse the axis of the crankshaft. A pair of rollers are mounted on the throw of the crankshaft with each roller being in alignment with and engaged by the load faces of a pair of the piston rods. Apertured retention plates on each side of each roller are fixed to the heels. The rollers engage the load faces. The crankshaft extends through the apertures in the retention plates and the plates are fixed to the heels by dowel pins positively locating and spacing the heels and the retention plates.
Claims7
A radial two-stroke internal combustion engine having two pairs of opposed cylinders arranged on axes at 90 degrees to one another and having a single throw crankshaft, each pair of cylinders having opposed pistons, a piston rod rigidly connected to each piston and extending inwardly to a cross piece having a load face transverse the axis of the engine, a pair of rollers mounted on the single throw of said crankshaft each in alignment with and engaged by the load faces of a pair of the piston rods, apertured retention plates with each plate on opposite sides of each roller along the axis of the crankshaft fixed to the cross pieces with the roller in engagement with the load faces and the crankshaft extending through the apertures, the plates being fixed to the inner ends of each of the rods by dowel bolts positively locating and spacing the load faces and the retention plates, the two pairs of pistons being axially offset, and counterweights on said crankshaft, wherein each of the rollers includes a bearing assembly having an interior and an exterior with roller elements therebetween, said interior being fixed on the crankpin, a lightweight alloy annulus having an interior and an exterior and said interior of said annulus being press fit on said exterior of the bearing assembly to reduce the mass of the roller assembly, and a wear shell press fit on said exterior of said annulus and engageable with said faces of the heels.
A radial internal combustion engine having two pairs of opposed cylinders arranged on axes at 90 degrees to one another and having a single throw crankshaft, each pair of cylinders having opposed pistons, each pair of opposed pistons being interconnected by a piston rod and scotch-yoke assembly comprising, a piston rod rigidly connected to each piston and extending inwardly to a heel having a load face transverse the axis of the crankshaft, a pair of rollers mounted on the throw of the crankshaft with each roller being in alignment with and engaged by the load faces of a pair of the piston rods, apertured retention plates with each plate on opposite sides of each roller along the axis of the crankshaft and fixed to said heels with the roller in engagement with the loading faces, the crankshaft extending through the apertures in the retention plates, the plates being fixed to the heels by dowel bolts positively locating and spacing the heels and the retention plates, and counterweights on the crankshaft wherein each of the rollers includes a bearing assembly having an interior and an exterior with roller elements therebetween, said interior being fixed on the crankpin, a lightweight alloy annulus having an interior and an exterior and said annulus being press fit on said exterior of the bearing assembly to reduce the mass of the roller assembly, and a wear shell press fit on said exterior of said annulus and engageable with said faces of the heels.
Dependencies are inferred from the claim text.