US 12,435,639 B2
Rotating group for turbomachine having integrated wheel and labyrinth seal arrangement
Kiran Somashekar Rao Nazare, Bangalore (IN); Poomkuzhimannil John, Bangalore (IN); Lubos Polak, Velké Meziřǐčí (CZ); and Adam Ingr, Rosice (CZ)
Assigned to GARRETT TRANSPORTATION I INC., Torrance, CA (US)
Filed by Garrett Transportation I Inc., Torrance, CA (US)
Filed on Jul. 13, 2023, as Appl. No. 18/351,593.
Claims priority of application No. 202311037868 (IN), filed on Jun. 1, 2023.
Prior Publication US 2024/0401493 A1, Dec. 5, 2024
Int. Cl. F01D 11/02 (2006.01); F02K 5/00 (2006.01); F04D 1/00 (2006.01); F04D 29/08 (2006.01)
CPC F01D 11/02 (2013.01) [F02K 5/00 (2013.01); F04D 29/08 (2013.01); F04D 1/00 (2013.01); F05D 2240/55 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A turbomachine comprising:
a housing;
a rotating group supported for rotation about an axis of rotation within the housing, the rotating group including a wheel and seal member that is unitary, the wheel and seal member including a first wheel feature with a first outer radial edge and a second wheel feature with a second outer radial edge that are disposed in a back-to-back arrangement with an outer radial area disposed between the first and second wheel features and facing radially outward from the axis of rotation, the outer radial area defined by a surface extending axially between the first outer radial edge and the second outer radial edge and disposed at a common radius with the first outer radial edge and the second outer radial edge, the common radius defined from the axis of rotation; and
a plurality of labyrinthine seal members recessed into the outer radial area to cooperatively define, with the housing, a labyrinthine seal.