Patent ID: 6692232
Filing Date: 2004-02-17
Classification: F01D,F05D

Abstract:
A rotor assembly for a disc turbine, said rotor assembly comprising:a shaft; a plurality of discs mounted to said shaft for rotation therewith about an axis of rotation, each said disc comprising a disc membrane radially spaced from said axis of rotation and at least every other of said plurality of discs being a spacer disc provided with spacer means for maintaining a predetermined axial distance between the membranes of said discs, the membrane of said spacer discs defining a plurality of spacer receiving apertures, wherein said spacer means do not rigidly join any two adjacent discs and are axially aligned to form a spacer column extending the axial length of said rotor assembly, each said spacer means having a length and a lateral dimension perpendicular to said length, said spacer means passing through said aperture and fixed to said spacer disc such that said lateral dimension is disposed between said spacer disc membrane and the membranes of axially adjacent discs.