Abstract: The junction between two optical fiber light conductors is protected by a sleeve envelope which connects the protection coatings directly to each other. Tension resistent filler fibers are compressed by a shrink fit inside the sleeve envelope so that tension stress bypasses the light conductor fibers through the filler fibers. The sleeve envelope ends are shrink fitted to the protection coating. The highly tension resistant filler fibers, surrounding and bridging the junction, are tightly enclosed in the sleeve envelope by the shrink fit so that tension stress also passes through the filler fibers, thereby permitting the sleeve envelope to perform its protection function while the filler fibers provide the required strength.

Abstract: A combustion chamber for gas turbines with a variable inlet cross section for the primary air, whereby the inlet cross section is so varied in dependence on the fuel pressure determining the injection quantity that with an increasing or decreasing fuel pressure, the inlet cross section is increased or decreased.

Abstract: A combustion chamber having an end-wall at the inlet side and an axial inlet opening, which is adjoined by an essentially cylindrical wall section provided with secondary air inlet openings; the end-wall thereby adjoins the inlet opening approximately hemispherically shaped with a sphere diameter which is larger than the diameter of the cylindrical wall section while the adjoining combustion chamber portion is again reduced to the adjacent cylindrical wall section by way of a combustion chamber wall substantially continuing the sphere shape; the fuel injection device is provided upstream of the inlet opening which injects fuel into the inlet opening, itself covered off by a deflection means.

Abstract: A cooling installation for reducing the oil temperature of oil-lubricated damping bearings, in which a cooling element is employed with one portion thereof in heat-conductive connection with a bearing housing portion, and another portion thereof immersed in the lubricating oil. The cooling element, which is preferably formed of metal wire or strips, may have the end thereof which is immersed in the oil contoured so as to increase its surface contact therewith and to thereby enhance the transfer of heat from the oil to the bearing housing.