ENGINE WITH PISTON PART AND CYLINDER HEAD PART ROTATED COAXIALLY IN A DOUGHNUT-TYPE CYLINDER

摘要

PURPOSE:To improve output by providing analogically-rotated piston parts and digitally-rotated cylinder head parts coaxially in a doughnut-type cylinder so as to obtain two explosions per one rotation of a rotary shaft. CONSTITUTION:A doughnut-type cylinder 1 is provided with a rotary shaft 4 at its plane center part as well as with pistons 2, 2' and cylinder head parts 3, 3 moving around the rotary shaft 4 inside the cylinder 1. The pistons 2, 2' and cylinder head parts 3, 3' are respectively formed to be symmetrical. The pistons 2, 2' are fixed at the rotary shaft 4 and rotated analogically, while the cylinder head parts 3, 3' are fitted with play at the rotary shaft 4 and rotated digitally by half rotation. The cylinder 1 is further provided with an intake port 7 and an exhaust port 6 formed in adjoining positions, as well as with a spark plug 5 mounted in a position relative to these parts 7, 6.