Patent ID: 8167558
Filing Date: 2012-05-01
Classification: F01D,F05D,F23R

Abstract:
1. A cooling system comprising: a turbine engine component having an outer wall and an inner wall; a cooling module located between the outer wall and the inner wall, the cooling module having a serpentine coolant flow passage defined by the outer wall, the inner wall and at least one wall extending from the inner wall to the outer wall; a plurality of microfins distributed along the flow passage, the microfins extending from the outer wall to the inner wall; a plurality of trip strips distributed along the flow passage, whereby the trip strips disrupt laminar flow along the flow passage; wherein the flow passage is configured such that coolant flow in one portion of the flow passage is in the same direction as coolant flow in a neighboring portion of the flow passage; and an exhaust diffusion region positioned downstream of the serpentine coolant flow passage, wherein the exhaust diffusion region and the serpentine coolant flow passage are separated by a wall extending between the inner and outer walls, wherein at least one metering hole extends through the wall such that the exhaust diffusion region and the serpentine coolant flow passage are in fluid communication and wherein the wall separating the exhaust diffusion region and the serpentine coolant flow passage is positioned at an acute angle relative to the inner and outer walls.