Patent ID: 6368059
Filing Date: 2002-04-09
Classification: B63H,B64C,Y02T,Y10S

Abstract:
A lifting device for imparting relative fluid flow in a multi-phase liquid comprising:a leading edge, a trailing edge, a low pressure surface having a first porosity region, and a high pressure surface having a second porosity region, each of the porosity regions comprising a plurality of holes in one of the surfaces; a first plenum located within the lifting device and in communication with the plurality of holes in the first porosity region; a second plenum located within the lifting device and in communication with the plurality of holes in the second porosity region, the second plenum being fluidly connected to the first plenum; and at least one communication passage fluidly connecting the first plenum to the second plenum for allowing fluid flow from the second plenum to the first plenum.