Abstract
Noise suppression is achieved in a closed Rankine cycle torpedo including a propulsor 36, a turbine 26 connected to the propulsor 36, the turbine 26 having an annular outlet 40. The regenerator 42 is disposed about the turbine outlet 40 and has a radially outwardly opening annular regenerator outlet 46. A hull condenser 10, 48, 52 has an axially opening inlet 54 and a conduit 56 connects the inlet 54 with the regenerator outlet 46 and has a wall 58 configured to cause fluid exiting in a radial direction from the regenerator outlet 46 to flow axially to the inlet 54. At least one curved vane 60, 62 is located within the conduit 56 for converting radial fluid flow to axial fluid flow and a sound suppressing elastomer 64, 74 is associated with each of the wall 58 and the vane 60, 62 for attenuating vibration imparted thereto by fluid impinging on the associated wall 58 or vane 60, 62.
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