Patent ID: 8844086

Claim:
A fluid rotation drive, having at least one drive wheel ( 11 ) which can be directly set into rotation about a drive axis ( 15 ) by the action of a supplied fluid ( 13 ); at least one planetary transmission, with a sun gear ( 17 ) of the planetary transmission being connected to the drive wheel ( 11 ); and a housing ( 19 ) which includes the drive wheel ( 11 ) and the planetary transmission and which has at least one inlet ( 21 ) for the fluid supplied for acting on the drive wheel ( 11 ), wherein a first ring region ( 27 ) for the fluid is defined by the drive wheel ( 11 ) and the housing ( 19 ), wherein the drive wheel ( 11 ) and the housing ( 19 ) are arranged such that the fluid, acting on the drive wheel, is brought into a ring flow inside the housing, wherein a second ring region ( 29 ) for the fluid is defined by a toothed arrangement ( 23 ) of an annulus gear ( 25 ) of the planetary transmission; and wherein the first ring region ( 27 ) and the second ring region ( 29 ) are arranged in direct spatial proximity to one another, such that the ring flow is braked by the toothed arrangement ( 23 ) of the annulus gear ( 25 ).