초록 ▼

A guide vane ring having guide vanes is provided on two rings which are arranged coaxially and radially at a distance from one another. These two rings are held on assigned housing sections which are subjected to thermally different expansions. One ring is rigidly connected with the guide vanes, and

A guide vane ring having guide vanes is provided on two rings which are arranged coaxially and radially at a distance from one another. These two rings are held on assigned housing sections which are subjected to thermally different expansions. One ring is rigidly connected with the guide vanes, and the other ring is connected with the free ends of the guide vanes by the compressive force of a tensioning element. In addition, the other ring is divided into several piston-ring-type elements which axially follow one another and which are each slotted approximately axially and form a cylindrical sliding surface for the whole free ends of the vanes. The tensioning element is arranged on the one group of assigned housing sections while forming a radial compressive force distributed uniformly on the elements.

대표청구항 ▼

A guide vane ring for a turbine of a gas turbine engine, having guide vanes arranged on two rings, the two rings being arranged coaxially and spaced apart radially from one another to define a gas flow channel, the two rings being further held on assigned housing sections exposed to thermally differ

A guide vane ring for a turbine of a gas turbine engine, having guide vanes arranged on two rings, the two rings being arranged coaxially and spaced apart radially from one another to define a gas flow channel, the two rings being further held on assigned housing sections exposed to thermally different expansions, one ring being rigidly connected to the guide vanes at one end and the other ring contacting the other free ends of the guide vanes by the compressive force of a tensioning element wherein said other ring is divided into several piston-ring-type elements arranged axially with respect to one another, said several piston-ring-type elements having approximately axial slots and forming a cylindrical sliding surface on which the guide vanes axially displaceably rest at their free ends, said tensioning element being arranged on one group of assigned housing sections to form a radial compressive force which is uniformly distributed on the several piston-ring-type elements.