| 摘要 |
FIELD: flying vehicles and water craft. SUBSTANCE: propeller has outer housing with inlet and outlet holes and impeller fitted on engine shaft. Centrifugal impeller with disk and blades is mounted inside nozzle in such position that disk of impeller together with blades and delivery diffuser of nozzle together with outward flow straighteners form outlet hole of propeller and inner holes of suction and delivery diffusers of nozzle form inlet hole of propeller, thus making it possible to use potential component of energy of flow sucked into propeller through inlet hole and its centrifugal component transmitted to nozzle by flow in washing the concave portion of delivery diffuser and outward flow straighteners. EFFECT: enhanced efficiency. 2 cl, 2 dwg |
