4. Rotary expansible chamber devices
  5. Working chamber surface expressed mathematically

George F. Round

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Low head turbine

Rotary kinetic fluid motors or pumps – With means for controlling casing or flow guiding means in... – Natural fluid current force responsive
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Rotary engine and method of operation

Internal-combustion engines – Rotary – With compression – combustion – and expansion in a single...
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Rotary pump having inner and outer components having abutments a

Rotary expansible chamber devices – Working chamber surface expressed mathematically
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