Sealing means fingertip

The present invention relates to a sealing device, in particular a gas turbine engine on the finger sealing means for controlling the secondary flow leakage. The present invention consists of the front bezel, tailgate and the fingertip disposed in several layers consisting sheet therebetween; said front bezel and backsplash are annular plate-like structure; sheet from the inner diameter of said fingertip opened at a linear array of concave finger body, and the body between the two adjacent fingers fingertip sheet are staggered; a plurality of mounting holes on the fingertip sheet; the front flap, tailgate and sheet fingertip using welding or rivet connection. And a rotor vibration sealing means and the sealing means of the present invention, the fingertip can accommodate relative displacement of the shaft due to centrifugal force and thermal deformation and generation of a large axial displacement of the rotor, as to improve the seal performance, reduced leakage, increase the service life . The present invention is of simple structure, low cost, suitable sealing means of various dimensions, to meet the requirements of mass production characteristics.