Apparatus and process for impingement cooling of a component exposed to heat in a flow power machine
AssigneeAlstom (Switzerland) Ltd
InventorsBernhard Weigand, James P. Downs
Life of this patent
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Abstract
An apparatus and a process are provided for impingement cooling of a component exposed to heat in a flow machine. The component includes a wall section on at least one side of which at least one impingement air flow impinges, the air flow passing through a flow channel within a surface element arranged spaced apart from the wall section and striking against the wall section to be cooled. The flow channel has an inlet aperture and an outlet aperture, with the outlet aperture directly facing toward the wall section to be cooled, and the inlet aperture has a throughflow cross section which is smaller than the throughflow cross section of the outlet aperture.
Claims12
An apparatus for impingement cooling of a component exposed to heat in a flow machine, comprising:
- a wall section to be cooled, said wall section being exposed on at least one side to at least one impingement air cooling flow;
- a surface element spaced apart from the wall section to be cooled and at least one flow channel being defined therethrough, the at least one impingement air cooling flow passing through the at least one flow channel and striking against the wall section to be cooled;
- and
- each of the at least one flow channel having an inlet aperture and an outlet aperture, the outlet aperture directly facing the wall section to be cooled, and the inlet aperture having a flow cross section which is smaller than the flow cross section of the outlet aperture, and wherein the longitudinal axes of the at least one flow channel is perpendicular to the wall section to be cooled.
A process for cooling a component exposed to heat, wherein the component includes a wall section to be cooled, the process comprising:
- impinging the wall section on at least one side with an impingement air cooling flow, wherein the impingement air cooling flow is directed with a divergent flow profile onto the wall section to be cooled, wherein the longitudinal axes of the at least one flow channel is perpendicular to the wall section to be cooled.
Dependencies are inferred from the claim text.