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US 10,371,010 B2Granted
Tie rod for a mid-turbine frame
AssigneeUnited Technologies Corporation
InventorsJorge I. Farah, Steven D. Porter, Paul K. Sanchez, Joseph J. Sedor
Life of this patent
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Abstract
A mid-turbine frame for a gas turbine engine includes an inner frame case that includes a bolt opening and at least one spoke for connecting an outer frame case to the inner frame case that includes an inlet passage that extends in a radial direction. A central bolt extends through the bolt opening for securing at least one spoke to the inner frame case.
Claims19
A mid-turbine frame for a gas turbine engine comprising:
- an inner frame case including a bolt opening;
- at least one spoke for connecting an outer frame case to the inner frame case including an inlet passage extending in a radial direction, wherein a radially inner end of the at least one spoke includes at least two tabs;
- and
- a central bolt extending through the bolt opening for securing the at least one spoke to the inner frame case, wherein the central bolt includes an airflow passage extending radially through the central bolt aligned with the inlet passage.
1 more element
A gas turbine engine comprising:
- a mid-turbine frame located axially between a first turbine and a second turbine, the mid-turbine frame comprising:
- an inner frame case including a bolt opening;
- at least one spoke for connecting an outer frame case to the inner frame case including an inlet passage extending in a radial direction, wherein a radially inner end of the at least one spoke includes at least two tabs;
- and
- a central bolt extending through the bolt opening for securing the at least one spoke to the inner frame case, wherein the central bolt includes an airflow passage extending radially through the central bolt aligned with the inlet passage.
2 more elements
Dependencies are inferred from the claim text.