US 11,982,210 B2
Transition system side seal for gas turbine engines
Anthony L. Schiavo, Oviedo, FL (US)
Assigned to Siemens Energy Global GmbH & Co. KG, Munich (DE)
Filed by Siemens Energy Global GmbH & Co. KG, Munich (DE)
Filed on Jan. 13, 2022, as Appl. No. 17/647,907.
Application 17/647,907 is a continuation of application No. 16/071,090, granted, now 11,255,201, previously published as PCT/US2016/015048, filed on Jan. 27, 2016.
Prior Publication US 2022/0136396 A1, May 5, 2022
Int. Cl. F01D 9/02 (2006.01); F01D 11/00 (2006.01); F01D 25/12 (2006.01)
CPC F01D 9/023 (2013.01) [F01D 11/005 (2013.01); F01D 25/12 (2013.01); F05D 2230/60 (2013.01); F05D 2240/35 (2013.01); F05D 2240/55 (2013.01); F05D 2260/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A gas turbine engine comprising:
a first transition duct comprising a first transition side rail having a first transition side groove that extends in a radial direction;
a second transition duct adjacent to the first transition duct, the second transition duct comprising a second transition side rail having a second transition side groove that extends in the radial direction; and
a side seal radially inserted into the first transition side groove and the second transition side groove, the side seal comprising:
an upper body portion;
a lower body portion; and
a plurality of wave washers that resiliently engages the first transition side groove and the second transition side groove to accommodate a thermo-mechanical stress that develops between the first transition duct and the second transition duct,
wherein the lower body portion comprises a first material sheet proximate to a high pressure area and a second material sheet proximate to a low pressure area, wherein the first material sheet comprises a first plurality of apertures and the second material sheet comprises a second plurality of apertures, and wherein the first plurality of apertures on the first material sheet are larger than the second plurality of apertures on the second material sheet, and
wherein the plurality of wave washers located between the first material sheet and the second material sheet.