AIRFOIL IMPINGEMENT CAVITY

摘要

An airfoil having one-sided pedestals is disclosed. The airfoil may define various cavities, such as an inflow feed cavity, an impingement cavity, and an outflow cavity. The various cavities may be connected by crossover sections such as an inflow crossover section and an outflow crossover section. Cooling air may be conducted into the inflow feed cavity, out of the inflow feed cavity through an inflow crossover section into an impingement cavity, and through an impingement cavity. The cooling air may be conducted out of the impingement cavity and into an outflow cavity through an outflow crossover section. Various cavities may include one-wall pedestals. One-wall pedestals may be structures extending from a wall of a cavity into the void of the cavity, whereupon cooling air may impinge, effectuating convective cooling.

主权项

1. An airfoil comprising:
a first feed cavity defined within a body of the airfoil and configured to receive cooling air; a first impingement cavity defined within the body of the airfoil and comprising a one-wall pedestal; a first inflow crossover section defined within the body of the airfoil and configured to conduct the cooling air from the first feed cavity to the first impingement cavity, wherein the one-wall pedestal comprises a boss extending from a surface of the first impingement cavity and into a void defined by a boundary of the first impingement cavity.