US 9,810,075 B2
Faceted turbine blade damper-seal
Kyle C. Lana, Portland, CT (US); and John E. Paul, Portland, CT (US)
Assigned to United Technologies Corporation, Farmington, CT (US)
Filed by United Technologies Corporation, Hartford, CT (US)
Filed on Mar. 20, 2015, as Appl. No. 14/663,752.
Prior Publication US 2016/0273367 A1, Sep. 22, 2016
Int. Cl. F01D 5/26 (2006.01); F01D 5/14 (2006.01); F01D 5/30 (2006.01); F01D 11/00 (2006.01); F01D 5/10 (2006.01); F01D 25/06 (2006.01)
CPC F01D 5/26 (2013.01) [F01D 5/10 (2013.01); F01D 5/147 (2013.01); F01D 5/3007 (2013.01); F01D 11/006 (2013.01); F01D 11/008 (2013.01); F01D 25/06 (2013.01); F05D 2220/32 (2013.01); F05D 2240/24 (2013.01); F05D 2240/55 (2013.01); F05D 2260/96 (2013.01); F05D 2300/10 (2013.01); Y02T 50/673 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A damper seal received in a cavity of a turbine blade, the damper seal comprising:
a central body portion having a first longitudinal end region, an opposing second longitudinal end region, a first side region, an opposing second side region;
a first portion extending from the first side region at the first longitudinal end region of the central body portion, the first portion defining a first tang, the first tang including a first edge that extends linearly back towards the central body portion in the direction of the second longitudinal end region;
a second portion extending from the first side region at the opposing second longitudinal end region of the central body portion, the second portion defining a second tang, the second tang including a second edge that extends linearly back towards the central body portion in the direction of the first longitudinal end region; and
a third portion extending from the second side region that defines an opening that is configured to receive a lug of the turbine blade to align the damper seal relative to the turbine blade;
wherein the first side region includes a faceted edge that includes the first edge on the first portion, the second edge on the second portion, and a linear edge on the central body between the first edge and the second edge, whereby the faceted edge defines a first flat face adjacent to a second flat face adjacent to a third flat face.