초록 ▼

A rotating blade group 90 for a turbo-machine having an improved device for sealing the gap 110 between the edges 112,114 of adjacent blade platforms 96,104. The gap 110 between adjacent blades 92,100 is sealed by a seal pin 20 its central portion 110 and by a seal plate 58,60 at each of the front 5

A rotating blade group 90 for a turbo-machine having an improved device for sealing the gap 110 between the edges 112,114 of adjacent blade platforms 96,104. The gap 110 between adjacent blades 92,100 is sealed by a seal pin 20 its central portion 110 and by a seal plate 58,60 at each of the front 54 and rear 56 portions. The seal plates 58,60 are inserted into corresponding grooves 62,64 formed in the adjacent edges 112,114 of adjoining blades 92,100 and held in place by end plates 40,42. The end of the seal plates 58,60 may be chamfered 78,80 to improve the seal against the end plate 40,42. The seal pin 20 provides the required damping between the blades 92,100 and the seal plates 58,60 provide improved sealing effectiveness.

대표청구항 ▼

[ What is claimed is:] [14.]14. A blade group in a turbo-machine comprising:a first blade having a first platform section with a first edge;a second blade having a second platform section with a second edge located adjacent said first edge and forming a gap therebetween;a first groove formed in said

[ What is claimed is:] [14.]14. A blade group in a turbo-machine comprising:a first blade having a first platform section with a first edge;a second blade having a second platform section with a second edge located adjacent said first edge and forming a gap therebetween;a first groove formed in said first edge;a second groove formed in said second edge; anda seal plate inserted into said first groove and said second groove and spanning a first portion of said gap;a third groove formed in said first edge, said third groove having an end proximate a first end of said first groove;a seal pin inserted into said third groove, said seal pin having a first end proximate a first end of said seal plate, said seal pin operable to make contact with said second edge and to span a second portion of said gap;said third groove being positioned so that an edge of the first end of said seal plate contacts the first end of said seal pin along an end face of the seal pin during the operation of the turbomachine.