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US 10,329,934 B2Granted
Reversible flow blade outer air seal
AssigneeUnited Technologies Corporation
InventorsKen F Blaney, Anthony B Swift, Neil L Tatman, Paul M Lutjen, Christopher M Jarochym
Life of this patent
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Abstract
A casting core for a Blade Outer Air Seal includes a heat exchange cavity core section in communication with a first plenum section and a second plenum section, the first plenum and the second plenum section are of a thickness greater than the heat exchange cavity section.
Claims20
A casting core for a Blade Outer Air Seal, comprising:
- a first plenum section of a thickness configured to receive a drill to form an inlet passage in communication with said first plenum section;
- a second plenum section of a thickness configured to receive a drill to form an outlet passage in communication with said first plenum section, at least one of the outlet passage and the inlet passage defines an angle with respect to a face of the Blade Outer Air Seal;
- and
- a heat exchange cavity core section in communication with said first plenum section and said second plenum section, said first plenum and said second plenum section are of a thickness greater than said heat exchange cavity section, said heat exchange cavity core section includes a multiple of features defining a tortuous airflow path between the respective first and second plenum sections, wherein said first plenum section and said second plenum section each has a respective thickness greater than a thickness of said heat exchange cavity section.
1 more element
A Blade Outer Air Seal, comprising:
- a first plenum section;
- a first multiple of passages in communication with said first plenum;
- a second plenum section;
- a second multiple of passages in communication with said second plenum, at least one of said first multiple of passages and said second multiple of passages defines an angle with respect to a face of the Blade Outer Air Seal;
- and
- a heat exchange cavity section in communication with at least one of said first multiple of passages, and at least one of said second multiple of passages, said heat exchange cavity core section includes a multiple of features defining a tortuous airflow path between the respective first and second plenum sections, wherein said first plenum section and said second plenum section each has a respective thickness greater than a thickness of said heat exchange cavity section.
3 more elements
A method of manufacturing a Blade Outer Air Seal, comprising:
- forming a casting core with a heat exchange cavity section in communication with a first plenum section and a second plenum section, said heat exchange cavity core section includes a multiple of features defining a tortuous airflow path between the respective first and second plenum sections, said first plenum section and said second plenum section having a thickness greater than a thickness of said heat exchange cavity section;
- and
- laser drilling a first multiple of passages into the first plenum section and a second multiple of passages into the second plenum section, at least one of the first multiple of passages and the second multiple of passages defines an angle with respect to a face of the Blade Outer Air Seal.
Dependencies are inferred from the claim text.