Method and apparatus for enhanced scroll stability in a co-rotat

Details Method and apparatus for enhanced scroll stability in a co-rotat Method and apparatus for enhanced scroll stability in a co-rotat

1991-04-19

1992-09-01

Vrablik, John J.

Refrigeration

Refrigeration producer

Compressor-condenser-evaporator circuit

418 1, 418 551, 418151, F01C 104

Patent

active

051428857

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.

REFERENCES:
patent: 4735559 (1988-04-01), Morishita et al.
patent: 4928503 (1990-05-01), Riffe
patent: 5013226 (1991-05-01), Nishida

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