Hydro-electric turbo-machine

A hydro-electric turbo-machine comprising:

• a stationary housing;
• a rotor arranged for rotational movement within said stationary housing;
• at least one substantially ring-shaped sealing means for sealing water flowing through the turbo-machine between predetermined parts of the rotor and the stationary housing;
• one of said parts serving as a rigid counter parts which possesses a sealing surface;
• said sealing means comprising at least one sealing body embedded in the other part and formed of resilient material;
• said at least one sealing body being pressed against said sealing surface;
• said counter part being structured such that its sealing surface has infed thereto from said counter part a friction-reducing liquid medium;
• said counter part is provided with groove means at the region of its sealing surface;
• said groove means possessing a direction of extent having a predominant component extending substantially in a predetermined shut-off direction of the water which is to be sealed;
• ceramic body members provided for said counter part;
• said ceramic body members having surfaces forming said sealing surface;
• and
• said ceramic body members having joint edges and the joint edges of neighboring ceramic bodies forming said groove means.

A hydro-electric turbo-machine comprising:

• a stationary housing;
• a rotor arranged for rotational movement within said stationary housing;
• at least one substantially ring-shaped sealing means for sealing water flowing through the turbo-machine between predetermined parts of the rotor and the stationary housing;
• one of said parts serving as a rigid counter part which possesses a sealing surface;
• said sealing means comprising at least one sealing body embedded in the other part and formed of resilient material;
• said at least one sealing body being pressed against said sealing surface;
• said counter part being structured such that its sealing surface has infed thereto from said counter part a friction-reducing liquid medium;
• said friction-reducing liquid medium comprises a liquid medium freed of contaminants;
• bore means provided for the counter part;
• said bore means opening at the sealing surface and serving for the infeed of the friction-reducing liquid medium at an excess pressure;
• and
• said bore means being provided at ceramic body members embedded in said counter part.

A hydro-electric turbo-machine comprising:

• a stationary housing;
• a rotor arranged for rotational movement within said stationary housing;
• at least one substantially ring-shaped sealing means for sealing water flowing through the turbo-machine between predetermined parts of the rotor and the stationary housing;
• one of said parts serving as a rigid counter part which possesses a sealing surface;
• said sealing means comprising at least one sealing body embedded in the other part and formed of resilient material;
• said at least one sealing body being pressed against said sealing surface;
• said counter part being structured such that its sealing surface has infed thereto from said counter part a friction-reducing liquid medium;
• said friction-reducing liquid medium comprises a liquid medium freed of contaminants;
• bore means provided for the counter part;
• said bore means opening at the sealing surface and serving for the infeed of the friction-reducing liquid medium at an excess pressure;
• and
• said bore means opening at ceramic body members attached to the counter part.

A hydro-electric turbo-machine comprising:

• a stationary housing;
• a rotor arranged for rotational movement within said stationary housing;
• at least one substantially ring-shaped sealing means for sealing water flowing through the turbo-machine between predetermined parts of the rotor and the stationary housing;
• one of said parts serving as a rigid counter part which possesses a sealing surface;
• said sealing means comprising at least one sealing body embedded in the other part and formed of resilient material;
• said at least one sealing body being pressed against said sealing surface;
• said counter part being structured such that its sealing surface has infed thereto from said counter part a friction-reducing liquid medium;
• a sealing body member arranged forwardly of said sealing body in a predetermined sealing direction for the water;
• and
• said sealing body member serving as a shutdown seal arrangement and as a blocking device for blocking entry of foreign particles.

A hydro-electric turbo-machine comprising:

• a stationary housing;
• a rotor arranged for rotational movement within said stationary housing;
• at least one substantially ring-shaped sealing means for sealing water flowing through the turbo-machine between predetermined parts of the rotor and the stationary housing;
• one of said parts serving as a rigid counter part which possesses a sealing surface;
• said sealing means comprising at least one sealing body embedded in the other part and formed of resilient material;
• said at least one sealing body being pressed against said sealing surface;
• said counter part being structured such that its sealing surface has infed thereto from said counter part a friction-reducing liquid medium;
• a substantially ring-shaped web member arranged in a predetermined shut-off direction for the water behind a sealing body of a rotating element constituted by one of said parts for propelling-out leakage liquid medium;
• and
• said web member engaging into a catch trough at a stationary element constituted by the other of said parts and opening towards a lengthwise axis of the turbo-machine.