METHOD FOR PRODUCING TORSIONAL VIBRATIONS Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: change in relative motion of two shaft parts of working member is governed by kinematic interaction and by profile of two pairs of cams and leverage-and-cam mechanisms, each of which meets requirements of technological process. Profile of one of surfaces of contacting pairs of cam mechanisms works successively on row of independent profiles of second surface. Change of second surface is possible, both, in period of interaction of operating cam pairs, and, also, before their interaction. EFFECT: higher efficiency.