Patent ID: 9206802
Filing Date: 2015-12-08
Classification: F01C,F04C,F05C,H02K

Abstract:
1. A swash pump or turbine comprising: an inner swash sphere with an annular swash plate attached thereto and with a central aperture, the swash plate being contained within an enclosed pumping chamber enclosed on each side by a fixed cone plate having the shape of a shallow cone, enclosed outwardly by the internal surface of a fixed, partial external swash sphere attached to or forming part of a housing of the swash pump or turbine, and enclosed inwardly by the inner swash sphere; the inner swash sphere being arranged to move in a nutating manner by rotation of a slanted section of a rotatable common drive shaft inside the central aperture of the inner swash sphere, the common drive shaft having a straight section that turns or is turned by an attached wheel, the inner swash sphere thereby being constrained, when the common drive shaft rotates, to move with a nutating motion while maintaining moving sealing lines between the swash plate and the cone plates; wherein the common drive shaft of the swash pump or turbine is entirely supported by two bearings comprising (A) a compound bearing supporting the swash plate, said compound bearing having an outer part comprising the outer surface of the inner swash sphere slidably supported upon two concave part-spherical bearings that are in turn supported against the housing of the swash pump or turbine, together with an inner part comprising a journalled bearing within the central aperture of the inner swash sphere, supporting the slanted section of the drive shaft, and (B) a single bearing supporting the straight section of the common drive shaft against the housing.