Method and apparatus for enhanced scroll stability in a co-rotational scroll
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United States of America Patent
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Sep 1, 1992
Grant Date -
N/A
app pub date -
Apr 19, 1991
filing date -
Apr 19, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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.
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