Rotary expansible chamber devices – Working chamber surface expressed mathematically
Reexamination Certificate
2005-03-08
2008-12-02
Davis, Mary A (Department: 3748)
Rotary expansible chamber devices
Working chamber surface expressed mathematically
C418S225000
Reexamination Certificate
active
07458791
ABSTRACT:
Rotary working machine provided with an assembly of working chambers with periodically variable volume, in particular a compressor, consisting of a stator with a controlling cam and a surrounding cylindrical rotator, with which are connected working elements, rotating together with it, driven by the cam and forming, together with an inner surface of the rotator and an outer surface of the cam, working chambers with variable volume, connected during the rotator's rotation with an intake and an outlet, respectively, of a medium being compressed. The compressor is characterized in that the assembly of working elements (10, 11, 12), forming a working unit (9) or separate working elements (10′), are connected with the cylindrical rotator (8, 8′) in a way enabling 6 their oscillating motion. Points (23, 23′) of contact of the working elements (10, 11, 12, 10′) are simultaneously driven by the cam (5, 6, 7, 5′), the outline of which constitutes a line equidistant from a Radziwill curve, constituting a locus of points forming a closed trajectory being described, on an immobile plane perpendicular to the axis of the cylindrical rotator (8, 8′), by a vertex point (C, C′) of the working element (10, 11, 12, 10′), moving in relation to the rotator (8, 8′) in an oscillation with a resonance frequency during one full revolution of the cylindrical rotator (8, 8′). Inertia moment lo, of the working unit (9), or the working element (10′), has a value ensuring the resonance frequency of proper vibration of the working unit (9), or the working element (10′), wherein a ratio of the resonance oscillation frequency to a frequency of the cylindrical rotator's (8, 8′) revolution is expressed by a natural number v.
REFERENCES:
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patent: WO/0042290 (2000-07-01), None
PCT Search Report From WIPO regarding priority PCT/PL2005/000014 dated Jun. 27, 2005.
Brinks Hofer Gilson & Lione
Davis Mary A
Radziwill Compressors SP. Z O.O.
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