Patent ID: 9470099
Filing Date: 2016-10-18
CPC Classification: F01D,F05D

Claim Text:
1. A turbine engine comprising: a rotor having a groove; and a securing device for axially securing a blade root of a blade in the groove, the securing device including a securing body with an outer contour facing a groove wall, the outer contour being curved and having different radii, the outer contour having a securing device contact region for contacting a groove contact region of the groove wall, an inclination angle between a tangent line of the groove wall and a straight line extending perpendicularly to a straight connecting line between a groove center point and a rotor axis is greater than an arc tangent of a friction coefficient between the securing device and the groove wall, an area of contact between the securing device and the groove wall being located outside of a self-locking region.