船舶推进器,是指船舶推进装置中的能量变化器。它将发动机产生的动力转变成船舶行进的推力,以克服船舶在水中航行的阻力,推动船的行进。最常见的是螺旋桨,此外还有明轮、喷水推进器、喷气推进器、导管推进器和平旋推进器等。广义上讲,推进器也包括依靠人力或风力驱动船舶前进的篙、桨、橹、纤和帆等。
船舶推进器已经被研究了很长时间,船用螺旋桨是船舶最重要的推进器。但是,直到现在,船用螺旋桨的设计和绘制仍然是很困难的。
The design and drawing of ship screws is being studied for long time and the propeller is the most important ship impeller.
该新型推进器适合于各种工程船舶,例如拖轮、顶轮、浮动起重船、挖泥船、渡轮、作业用平底船等,具有广阔的市场应用前景和军事意义。
This new type propeller which fit for various vessels such as tugboat, float lifting boat, excavating boat, ferry boat, flat bottom boat and so on has extensive market prospect and military purpose.
船舶用的甲板起重机械(绞车)、船头门、舱壁阀、船尾推进器等;
The ships deck hoisting machinery such as bow gate, bulkhead valve, stern propeller and so on;
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