Rudder with thrust fins
A technology of thrust fins and rudders, which is applied in directions such as steering with a rudder, can solve the problems of hindering the thrust fin boosting effect, energy loss, limiting the thrust fin boosting energy-saving effect, etc., and achieves a good boosting and energy-saving effect.
Inactive Publication Date: 2016-02-17
WUXI HAIHE EQUIP TECH CO LTD
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Problems solved by technology
[0004] However, the pressure surface and the suction surface near the end of the thrust fin of this device have a tendency to generate wing end vortices, that is, the wake flowing through the lower surface of the thrust fin will roll towards the upper surface of the thrust fin when it moves to the outer end of the thrust fin, or When the wake on the upper surface of the thrust fin moves to the outer end of the thrust fin, it will roll towards the lower surface of the thrust fin, which will still cause energy loss and hinder the boosting effect of the thrust fin, limiting the energy-saving effect of the thrust fin. promote
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[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0017] Such as figure 1 and figure 2 As shown, the rudder with thrust fins of the present invention includes a rudder plate 1 arranged vertically, and a rudder stock 2 for rotating with the hull 3 is arranged at its upper end. There are thrust fins 5 on both sides of the middle part of the rudder plate 1, and the thrust fins 5 are close to the front edge of the rudder plate 1, and the outer ends of the two thrust fins 5 are connected with vertically arranged flow control plates 6.
[0018] In order to facilitate the use of the sundries in front of the rudder to slide off the thrust fin 5 smoothly, and under the premise that the draft tube and the propeller 8 blades are not damaged when the rudder is turned, the leading edge of the thrust fin 5 should face the direction of the ship. The rear is rotated by a certain angle α (such as figure 2 shown). For c...
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The invention relates to a marine component and in particular relates to a rudder with thrust fins. The rudder comprises a vertical rudder plate, wherein a rudder stock in running fit with a hull is arranged at the upper end of the rudder plate. The rudder is characterized in that the thrust fins are arranged at the two sides of the middle part of the rudder plate and are close to the leading edge of the rudder plate; and the outer ends of the two thrust fins are connected with vertical swash plates. The rudder has the advantages that as vortexes can not be generated at the outer ends of the thrust fins, the rudder can further recover the energy of the propeller race and has better boosting and energy saving effects.
Description
technical field [0001] The invention relates to a marine component, in particular a rudder with thrust fins installed on the rear side of a stern propeller. Background technique [0002] The propeller is the most conventional means for ship propulsion, which has two or more blades. In order to reduce the fuel consumption and emissions of the ship, the propulsion efficiency of the propeller should be improved as much as possible. From the perspective of the interaction between the propeller and the rudder, it has become an important consideration in the design of ship propulsion to coordinate the rudder and the screw to recover the energy in the wake behind the propeller and improve the propulsion efficiency of the propeller / rudder system. [0003] The Chinese invention patent with the patent number ZL201010235336.8 (notification number CN101898631B) discloses a rudder device based on a rudder ball thrust fin. Thrust fins with opposite installation angles are arranged on the...
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IPC IPC(8): B63H25/38
Inventor 陈革洲吴朋朋刘之岭徐晨曦蒋恒深
Owner WUXI HAIHE EQUIP TECH CO LTD