Asea Brown Boveri Ag

Abb Alstom Power (Switzerland) Ltd.

Michael Hock

Bernhard Weigand

Gordon David Anderson

Kenneth Hall

Fathi Tarada

Beat Von Arx

J&ouml;rgen Ferber

Alfred Krahenbuhl

Peter Hartmann

A hot-gas stream (,) flows along the surface of a segment arrangement for shroud bands, in particular in a gas turbine. The segment arrangement comprises segments (,&prime;) arranged next to one another and in each case separated from one another by a gap (,). The hot-gas stream (,), in at least one section (,) of the gap (,), has a velocity component perpendicular to the direction of the gap from a first segment (,) to a second segment (,&prime;). In this case, in said section (,), along that edge (,) of the first segment (,) which faces the gap (,), at least one film-cooling bore (,) connects a cooling-air chamber (,), allocated to the first segment, to the surface (,) subjected to the hot-gas stream (,), and/or, in said section (,), along that edge (,&prime;) of the second segment (,&prime;) which faces the gap (,), at least one edge-cooling bore (,) connects a cooling-air chamber (,&prime;), allocated to the second segment, to the inside (,&prime;) of the gap (,).

Cooling arrangement for gas-turbine components

Platform cooling having a guide-blade platform (30; 60) which is subjected to a hot-gas stream (20) and is separated by a gap (36; 66) from a combustion-chamber segment (40; 70) arranged upstream, one or more segment cooling bores (42; 72) being made in the combustion-chamber segment (40; 70), which segment cooling bores (42; 72) connect a cooling-air chamber (44; 74) to the gap (36; 66). The guide-blade platform (30; 60) has a surface (34; 64) on the downstream side in the region of the gap (36; 66), the axes of the one or more segment cooling bores (42; 72) running roughly tangentially to said surface (34; 64).

Platform cooling for gas turbines

A device for the mounting of moving blades having essentially axial roots into corresponding axial grooves of a rotor of a turbomachine includes a radially outer head having at least one axial groove corresponding essentially to an axial root of one of the rotating blades and a radially inner foot part for mounting in a groove encircling the rotor.

Device for the mounting of rotating blades

Growing community of inventors

München, Germany

Michael Hock