US Patent 12018591 Ring segment assembly in gas turbine engine

A ring segment assembly includes a ring segment including an impingement pocket having an impingement surface, a plurality of pins extending from the impingement surface, and an impingement plate spaced a non-zero distance from the impingement surface. The plurality of pins are arranged to define a plurality of pinless impingement areas. The impingement plate has a plurality of bumps and a plurality of valleys. The impingement plate defines a plurality of impingement holes. Each impingement hole of the plurality of impingement holes is formed in one of the valleys of the plurality of valleys and positioned opposite one of the plurality of pinless impingement areas.