US 11,859,547 B2
Turbine engine having a balance cavity
Joseph G. Rose, Evendale, OH (US); Atanu Saha, Bengaluru (IN); Bhaskar Nanda Mondal, Bengaluru (IN); Craig W. Higgins, Evendale, OH (US); Darek Zatorski, Evendale, OH (US); and Vaibhav Deshmukh M, Bengaluru (IN)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by GENERAL ELECTRIC COMPANY, Schenectady, NY (US)
Filed on May 27, 2022, as Appl. No. 17/826,321.
Claims priority of application No. 202211010224 (IN), filed on Feb. 25, 2022.
Prior Publication US 2023/0272744 A1, Aug. 31, 2023
Int. Cl. F02C 7/06 (2006.01); F02C 3/06 (2006.01)
CPC F02C 7/06 (2013.01) [F02C 3/06 (2013.01); F05D 2240/52 (2013.01); F05D 2260/15 (2013.01); F05D 2260/213 (2013.01); F05D 2260/232 (2013.01); F05D 2260/605 (2013.01); F05D 2260/607 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A turbine engine comprising:
a drive shaft rotatable about an axis;
a multi-stage compressor section circumscribing and driven by the drive shaft;
a turbine section circumscribing and operably coupled to the drive shaft;
a thrust bearing provided between the drive shaft and at least a portion of the multi-stage compressor section and rotationally supporting the drive shaft;
a balance cavity, located at least partially axially upstream of the thrust bearing, with respect to the axis, and fluidly coupled to at least a portion of the multi-stage compressor section; and
a recoup cavity fluidly coupled to the balance cavity;
wherein during operation of the turbine engine, a first axial force is applied to the thrust bearing in a fore-to-aft direction by the drive shaft, with respect to the axis, and a second axial force is applied by the balance cavity in an opposing direction to the first axial force.