4. Marine propulsion
  5. Screw propeller
  6. Having means to control flow around propeller

Donald H. VanLiew

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Energy efficient asymmetric pre-swirl vane and twisted propeller

Marine propulsion – Screw propeller – Having means to control flow around propeller
Patent

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Modified optimum pitch propeller

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices
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Profile ID: LFUS-PAI-P-839945

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