A propulsor is a mechanical device that gives propulsion. The word is commonly used in the marine vernacular, and implies a mechanical assembly that is more complicated than a propeller. The Kort nozzle, pump-jet and rim-driven thruster are examples.
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| - Propulsor (en)
- Voortstuwer (nl)
- Propulsor (pt)
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| - Een voortstuwer is een apparaat waarmee stuwkracht wordt geleverd. Het wordt vooral in de scheepvaart gebruikt voor constructies die ingewikkelder zijn dan een schroef — hoewel dit ook een voortstuwer is — zoals een waterjet, een schroef met straalbuis en een roerpropeller. Ook valt hieronder. (nl)
- A propulsor is a mechanical device that gives propulsion. The word is commonly used in the marine vernacular, and implies a mechanical assembly that is more complicated than a propeller. The Kort nozzle, pump-jet and rim-driven thruster are examples. (en)
- O propulsor é um equipamento que, feita em sua maior parte por materiais metálicos, é usado mormente em veículos de locomoção, para gerar o seu empuxo. Como exemplo geral, temos embarcações, aviões, helicópteros e foguetes. Construtivamente são compostos de um cubo (conectado ao eixo propulsor) ao qual um core (núcleo) é encarregado de gerar energia propulsora. (pt)
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| - A propulsor is a mechanical device that gives propulsion. The word is commonly used in the marine vernacular, and implies a mechanical assembly that is more complicated than a propeller. The Kort nozzle, pump-jet and rim-driven thruster are examples. An example propulsor is shown in the accompanying picture. It has a shroud which cuts down on blade-tip cavitation and radiated noise. It also has a rotor element and a stator. The stator concentrates the thrust in axial direction and reduces energy wasted in the tangential flow (therefore eliminating torque on the hull). The number of blades in the rotor and stator will typically be two different prime numbers to avoid standing waves. The blades in the rotor or the stator may be angled to further reduce noise. The physical design and layout is very much similar to a single stage axial-flow compressor. (en)
- Een voortstuwer is een apparaat waarmee stuwkracht wordt geleverd. Het wordt vooral in de scheepvaart gebruikt voor constructies die ingewikkelder zijn dan een schroef — hoewel dit ook een voortstuwer is — zoals een waterjet, een schroef met straalbuis en een roerpropeller. Ook valt hieronder. (nl)
- O propulsor é um equipamento que, feita em sua maior parte por materiais metálicos, é usado mormente em veículos de locomoção, para gerar o seu empuxo. Como exemplo geral, temos embarcações, aviões, helicópteros e foguetes. Este empuxo é cometido pelo propulsor mediante fontes de energia, que participam do processo de combustão ou transformação química. Este é obtido conforme a terceira lei de Newton, pela diferença da quantidade de movimento aliada ao fluxo de entidades químicas e físicas energizadas (materia, ondas, íons ou campos magnéticos) que passam pelo propulsor. Por meio do Efeito Joule Construtivamente são compostos de um cubo (conectado ao eixo propulsor) ao qual um core (núcleo) é encarregado de gerar energia propulsora. (pt)
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