ES429179A1 - Improvements introduced in a rotary fluid engine. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Perfections introduced in a rotary fluid engine, comprising: a housing, a rotating power output shaft, concentric with said housing, means defining an annular pressure chamber in the peripheral part of said housing, four pistons mounted in said chamber of pressure and angularly movable therein, rigid diametrically opposed pairs of said pistons being rigidly fixed to each other, an inlet port for introducing fluid under pressure in said chamber whereby said pistons are made to move angularly in said chamber, an exhaust port for evacuate the fluid from said chamber, at a point angularly offset with respect to said inlet port, and connecting means joining said pistons to said output shaft, whereby the movement of the former produces the rotation of the latter, said means comprising of connection a cylindrical piston carrier, which defines the inner wall of said chamber a pressure and divided into two sections supported in rotation independently coaxially with said output shaft, said pairs of pistons are fixed, respectively, to one of said carrier sections, a central wheel normally fixed in said housing, coaxially with said shaft of output, a planetary gearwheel carrier fixed to said output shaft and rotatable therewith, a planetary gearwheel rotatably supported in said planetary wheel carrier eccentrically with said output shaft and in engagement with said center wheel, a pair of angularly opposite cranks, fixed to said planetary wheel and rotating therewith, and a pair of connecting rods, each of greater length than the radius of said planetary wheel, each connecting rod being pivoted at one end to the free end of one of said cranks, - and at its opposite end to one of said piston-carrying sections, all trunnions or pivots being parallel to said output shaft. Cited otes cited. (Machine-translation by Google Translate, not legally binding)