COUPLED ROTORS Russian patent published in 2010 - IPC F01C1/18 

FIELD: machine building.

SUBSTANCE: coupled rotors are made in the form of a pair of elliptical pinions engaged in mutually perpendicular direction. Each elliptical pinion along the pitch line consists of two osculating circuits and envelope curves representing arches. Circles have radius r₁ determined by the formula: where h - centre-to-centre distance between elliptical pinions, r - radius of osculating circles the centres of which are in the same line as the centres of circles with radius r₁, at that, r =r_b/2, where r_b - major semiaxis of elliptical pinion. Arches have radius R₁ determined by the formula: where e=h-3r - height between arch and tangent line to two osculating circles in elliptical pinion. Minor semiaxis of elliptical pinion is r_m=r+e.

EFFECT: eliminating jamming and breaks within the whole contact range, and increase of efficiency.

1 cl, 1 dwg