Rotary expansible chamber devices – With plural working fluid inlet or outlet passages
Patent
1986-09-22
1987-12-01
Vrablik, John J.
Rotary expansible chamber devices
With plural working fluid inlet or outlet passages
418183, 418189, 418206, F04C 1818
Patent
active
047101105
ABSTRACT:
This is a compressor apparatus having a central cavity, a fluid inlet and a fluid outlet coupled to the cavity, a pair of impellers having hollow interiors positioned in the cavity between the inlet and the outlet, each impeller having a plurality of exernal teeth engaging and intermeshing with the teeth on the other impeller and adapted for compressing a fluid, introduced into the cavity, means for rotating the impellers to draw the fluid out of the interior of the impellers and compress the fluid in the cavity and to force the compressed fluid out of the cavity through the outlet, each impeller having a fluid inlet on one end coupling the inlet of the cavity to the hollow interior of the impeller, each impeller further having a plurality of slots between each of the teeth on the impeller, said slots connecting the hollow interior of the impeller to the cavity through which fluid, introduced into the interior of the impeller, can exit the impeller and pass into the cavity, and a gate positioned in the hollow interior of each impeller and arranged to close selected slots in said impellers, as said impellers are rotated in said cavity around said gates, to prevent compressed fluid from passing back into the interiors of the impellers.
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patent: 3601515 (1971-08-01), Pelizzoni
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