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US 2014/0348665 A1Published application
Pin-fin array
AssigneeGeneral Electric Company
InventorAaron Ezekiel Smith
Life of this patent
Estimating the term…
Abstract
The present application provides an airfoil with a cooling flow therein. The airfoil may include an internal cooling passage, a number of cooling holes in communication with the internal cooling passage, and a number of pin-fins positioned within the internal cooling passage. The pin-fins are arranged with one or more turning openings and one or more guiding openings so as to direct the cooling flow towards the cooling holes.
Claims20
An airfoil comprising:
- an internal cooling passage configured to direct a cooling flow in a radially outward direction;
- a plurality of cooling flow exit holes in communication with the internal cooling passage, such that the cooling flow can exit the internal cooling passage;
- and
- a plurality of pin-fins positioned in the internal cooling passage, the plurality of pin-fins configured to guide the cooling flow to the plurality of cooling flow exit holes, wherein:
- the plurality of pin-fins comprises a first pin-fin, a second pin-fin, and a third pin-fin, each arranged in a row having a central axis;
- the first pin-fin has a center point positioned at the central axis of the row;
- the second pin-fin has a center point positioned offset from the central axis of the row by a first offset distance in a first direction;
- the third pin-fin has a center point positioned offset from the central axis of the row by a second offset distance in a second direction;
- and
- the first offset distance is different than the second offset distance.
7 more elements
An airfoil comprising:
- a cooling flow inlet configured to allow a cooling flow to enter an internal cooling passage of the airfoil in an inlet direction;
- a plurality of cooling flow exit holes in communication with the internal cooling passage;
- and
- a pin-fin array configured to guide the cooling flow to the plurality of cooling flow exit holes comprising:
- a first pin-fin, a second pin-fin, and a third pin-fin, each arranged in a row having a central axis, the row positioned transverse to the inlet direction;
- wherein the second pin-fin has a center point positioned at the central axis of the row;
- the first pin-fin has a center point positioned offset from the central axis of the row by a first offset distance in a first direction;
- the third pin-fin has a center point positioned offset from the central axis of the row by a second offset distance in a second direction;
- and
- the first offset distance is different than the second offset distance.
7 more elements
Dependencies are inferred from the claim text.