ALL-FUEL ROTARY PISTON ENGINE Russian patent published in 1997 - IPC

FIELD: manufacture of engines. SUBSTANCE: four half-pins fitted with antifriction bearings are secured in engine on fixed hollow shaft in cross section; half-pins are arranged in pairs coaxially through 90 deg by radius; hollow piston with curvilinear end surface is freely located between pairs of half-pins forming two rectangular axial passages with two pairs of rectangular rods-retainers rigidly secured in body of outer radial pistons of inner cylinder provided with two slots over central circle for free motion of two rectangular rods-retainers; their inner ends provided with sliders are freely inserted in radial rectangular passages which are skewed axially in center of hollow piston; outer ends of rods-retainers are rigidly fastened in radial pistons of outer cylinder forming rotor with two pairs of radial pistons together with one side, two secured injectors with self-adjustable fuel-supply spool valve; fuel is fed from central spring-loaded pipe line mounted in fixed hollow shaft due to centrifugal force; besides that, hollow piston may be provided with bevelled end planes. EFFECT: enhanced reliability. 2 cl, 6 dwg