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US 11,988,126 B2Granted
Exhaust manifold having turbine connector with turbine foot
AssigneeCaterpillar Inc.
InventorsMatthew Wolk, Thomas L Atwell, Vikas Bhupendra Sheth, Jeremy Ross Conyers
Life of this patent
Estimating the term…
Abstract
A turbine connector (40) in an engine exhaust manifold (30) includes a turbine foot (54) attached to incoming exhaust conduits (42,46). The turbine foot (54) has an outer perimetric edge (72) defining a trapezoidal shape, and inner perimetric edges (86,90) forming exhaust outlets (88,92) from the incoming exhaust conduits (42,46). The inner perimetric edges (86,90) have varied perimetric curvatures largest in finite curvature size upon a web (94) extending between the exhaust outlets (88,92), and together forming an hourglass web profile in a turbine-mounting plane defined by the turbine foot (54).
Claims18
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.
3 more elements
A turbine connector comprising:
- a turbine foot having an engine-facing side, and a turbine-mounting side opposite to the engine-facing side and defining a turbine-mounting plane;
- the turbine foot further including an outer edge including 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 having therein a plurality of bolt holes including two long-span bolt holes adjacent to the first perimetric base and two short-span bolt holes adjacent to the second perimetric base;
- a long-span dimension is defined between centerlines of the two long-span bolt holes, and a short-span dimension shorter than the long-span dimension is defined between centerlines of the two short-span bolt holes;
- and
- the turbine foot further including a first inner edge forming a first exhaust outlet opening in the turbine-facing side, a second inner edge forming a second exhaust outlet opening in the turbine-facing side, and a web extending between the first exhaust outlet and the second;
- each of the first inner edge and the second inner edge includes a curved segment upon the web forming a circular arc defining a radius size dimension;
- and each of the long-span dimension and the short span dimension is greater than the radius size dimension.
5 more elements
A turbine connector comprising:
- a turbine foot including an outer edge having a first perimetric base, a second perimetric base, a first inner edge forming a first exhaust outlet, a second inner edge forming a second exhaust outlet, and a web extending between the first exhaust outlet and the second exhaust outlet;
- and
- the first inner edge and the second inner edge each including a curved segment upon the web, a first linear segment adjacent to the first perimetric base, a second linear segment adjacent to the second perimetric base, and a third linear segment opposite to the respective curved segment;
- and
- wherein each respective first linear segment includes a medium-length linear segment, each respective second linear segment includes a shortest-length linear segment, and each respective third linear segment includes a longest-length linear segment.
2 more elements
Dependencies are inferred from the claim text.