| 摘要 |
FIELD: shipbuilding; fore and aft thrusters. ^ SUBSTANCE: proposed water-jet thruster has water scoop, axial-flow pump with T-piece located behind it and provided with curvilinear blades secured turnably for shutting-off one of outlet passages. When blades shut-off one of outlet passages, their convex surfaces are directed towards other of them. Each blade is made in form of wing on side of pump and bent plate following it. When outlet passage is open, wings are located at angle relative to incoming flow. Upper surface of wing is directed towards opposite side; lower surface of wing is provided with artificial roughness. ^ EFFECT: increased transversal thrust; reduced power requirements. ^ 1 dwg |
