US 10,364,748 B2
Finger seal flow metering
John D Teixeira, Palm City, FL (US)
Assigned to United Technologies Corporation, Farmington, CT (US)
Filed by United Technologies Corporation, Farmington, CT (US)
Filed on Aug. 19, 2016, as Appl. No. 15/241,753.
Prior Publication US 2018/0051629 A1, Feb. 22, 2018
Int. Cl. F02C 6/04 (2006.01); F02C 7/18 (2006.01); F02C 7/28 (2006.01); F01D 11/00 (2006.01)
CPC F02C 7/18 (2013.01) [F01D 11/005 (2013.01); F02C 7/28 (2013.01); F05D 2240/57 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A seal assembly comprising:
a first layer comprising:
a first base; and
a first plurality of fingers extending from the first base wherein the first plurality of fingers are separated by a first plurality of slots and wherein each of the first plurality of fingers includes one of a first plurality of orifices having a first area;
a second layer adjacent to the first layer, the second layer comprising:
a second base; and
a second plurality of fingers extending from the second base wherein the second plurality of fingers are separated by a second plurality of slots and wherein each of the second plurality of fingers includes one of a second plurality of orifices having a second area smaller than the first area;
wherein each of the first plurality of slots is spaced apart laterally from each of the second plurality of slots; and
wherein the first plurality of orifices is overlapped by the second plurality of orifices such that the first area of each of the first plurality of orifices extends completely beyond the second area of each of the second plurality of orifices.