초록 ▼

The disclosure concerns a hydroelectric machine including a tube-type hydraulic machine having a bladed wheel which carries adjustable blades, rotates about a horizontal axis and is connected with a shaft which extends into a guide blade lattice hub, and an electrical machine which surrounds the bla

The disclosure concerns a hydroelectric machine including a tube-type hydraulic machine having a bladed wheel which carries adjustable blades, rotates about a horizontal axis and is connected with a shaft which extends into a guide blade lattice hub, and an electrical machine which surrounds the bladed wheel and has a rotor secured to an annular rim in which the external ends of the adjustable wheel blades are pivotably mounted. The rotating set is provided with three radial bearing arrangements, one being associated with the rotating unit formed by the rotor and the rim, providing sole radial support for that unit, and consisting exclusively of hydrostatic devices which support without physical contact. The other bearing arrangements are associated with the shaft at its free and bladed wheel ends, respectively. The bearing arrangement at the free shaft end and one of the other bearing arrangements center the rotating set with respect to the axis of rotation and are the only bearings which perform this function. The remaining radial bearings provide a constant supporting force when there are slow radial movements of the rotating set and a progressively increasing supporting force when there are sudden radial movements of that set.

대표청구항 ▼

A hydroelectric machine comprising a. a tube-type hydraulic machine having a guide blade lattice hub, a bladed wheel which rotates about a horizontal axis and carries adjustable, radially extending blades, and a shaft which is connected with the bladed wheel, extends into said hub, and has a free en

A hydroelectric machine comprising a. a tube-type hydraulic machine having a guide blade lattice hub, a bladed wheel which rotates about a horizontal axis and carries adjustable, radially extending blades, and a shaft which is connected with the bladed wheel, extends into said hub, and has a free end in the hub; b. an annular rim surrounding the bladed wheel and in which the external ends of the adjustable wheel blades are pivotably mounted; c. an electrical machine surrounding the rim and having a rotor secured to the rim, the rotor and rim forming a rotating unit, and said unit and bladed wheel forming a rotating set; d. first bearing means providing sole radial support for the rotating unit and consisting exclusively of hydrostatic devices which support without physical contact; and e. second and third radial bearing means acting on the shaft, the second bearing means being located at said free end of the shaft and the third bearing means being located adjacent the bladed wheel, f. the second bearing means and one of the first and third bearing means serving to center said rotating set with respect to the axis of rotation and being the only bearing means which perform this function, and g. the remaining bearing means producing a constant supporting force when there are slow radial movements of said rotating set and a progressively increasing supporting force when there are sudden radial movements of that set.