Internal-combustion engines – Rotating cylinder – Parallel to shaft
Patent
1990-12-31
1992-11-03
Koczo, Michael
Internal-combustion engines
Rotating cylinder
Parallel to shaft
91500, 123 45R, F02B 5706
Patent
active
051599023
ABSTRACT:
A rotary vee engine with through-piston induction includes a housing supporting a pair of rotors positioned in an obtuse angular relation and having pluralities of cylinders mounted thereon about respective rotor axes. Aligned cylinders in the opposite rotors have vee shaped double piston assemblies slidable and rotatably received therein. Fuel/air charges are inducted into the cylinders through apex ports in the piston apex portions, through fluid passages in the pistons, piston intake ports in the piston heads, and cylinder intake grooves formed in the inner walls of the cylinders. The cylinder intake grooves in each cylinder include a pair of axially elongated grooves with a trailing groove being staggered toward a cylinder head in relation to a leading groove and in relation to cylinder exhaust ports positioned opposite the grooves. The piston intake port is circumferentially elongated at least a distance to overlap both grooves. In the operating cycle, the piston head moving toward bottom dead center opens the exhaust ports prior to opening the intake porting and, in moving away from the bottom dead center position closes the exhaust ports prior to closing the intake porting.
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