METHOD AND APPARATUS FOR ENHANCED SCROLL STABILITY IN A CO-ROTATIONAL SCROLL

摘要

Title METHOD AND APPARATUS FOR ENHANCED SCROLL STABILITY IN A CO-ROTATIONAL SCROLL Inventors Robert E. Utter Daniel R. Crum In a co-rotational scroll apparatus having two interleaving scroll wraps secured to end plates rotating about parallel, non-aligned axes to produce a relative orbital motion, a mass secured to at least one of the scrolls for enhancing the nutational stability of the scroll member. Preferably, the nutation reducing means includes a mass affixed to an end plate of the scroll member to induce a dynamic imbalance during rotation of the scroll member, creating a balancing or moderating moment sufficient to compensate for the moment induced by the varying pressure of the fluids in the various compression chambers during the rotation of the scroll member.