US 11,988,126 B2
Exhaust manifold having turbine connector with turbine foot
Matthew Wolk, Peoria (IL); Thomas L Atwell, Maryville, TN (US); Vikas Bhupendra Sheth, Edwards, IL (US); and Jeremy Ross Conyers, Washington, IL (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Appl. No. 18/247,180
Filed by Caterpillar Inc., Peoria, IL (US)
PCT Filed Oct. 19, 2021, PCT No. PCT/US2021/055494
§ 371(c)(1), (2) Date Mar. 29, 2023,
PCT Pub. No. WO2022/108695, PCT Pub. Date May 27, 2022.
Prior Publication US 2023/0374928 A1, Nov. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F01N 13/10 (2010.01); F02B 37/02 (2006.01); F02B 67/10 (2006.01)
CPC F01N 13/105 (2013.01) [F02B 37/02 (2013.01); F02B 37/025 (2013.01); F02B 67/10 (2013.01); F01N 2260/10 (2013.01); F01N 2340/06 (2013.01); F05D 2220/40 (2013.01); F05D 2240/91 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A turbine connector for an engine exhaust manifold comprising:
a turbine foot having an engine-facing side, and a turbine-mounting side defining a turbine-mounting plane;
the turbine foot further including an outer edge having a first perimetric base, a second perimetric base, a first perimetric leg and a second perimetric leg each extending between the first perimetric base and the second perimetric base;
the turbine foot further including a first inner edge forming a first exhaust outlet opening in the turbine-mounting side, a second inner edge forming a second exhaust outlet opening in the turbine-mounting side, and a web extending between the first exhaust outlet and the second exhaust outlet;
the first inner edge and the second inner edge each having a varied perimetric curvature that is largest in finite curvature size upon the web, and together forming an hourglass web profile in the turbine-mounting plane defining a first axis extending between the first perimetric leg and the second perimetric leg, and a second axis oriented normal to the first axis; and
the first inner edge and the second inner edge each having a curved segment upon the web, and a linear segment opposite to the respective curved segment, and each respective linear segment being oriented diagonally relative to both the first axis and the second axis.