Abstract: A gas turbine engine includes a turbine section that has a ceramic matrix composite body that defines a core gaspath side that a row of blades, a forward end, an aft end, and circumferential sides. The forward end abuts at least one vane of a first row of vanes, and the aft end including a seal channel. A compliant seal is disposed in the seal channel and seals against at least one vane of a second row of vanes.

Abstract: Fluid flow diverter apparatus is described for reversing the direction of fluid flow through a process loop, such as a bundle of heat exchange tubes in an air conditioning system. The apparatus utilizes a housing enclosing a rotary valve in which the diverter disk seats in two positions against generally U-shape seating frames that can be repositioned to compensate for erosion or other distortion of the seating surfaces on the frames and disk. The seating frames comprise a plurality of seating bars, each of which is adjustably fastened to the interior of the valve casing by at least one threaded fastener that extends through a transverse slot in the bar and engages the casing. All seating surfaces preferably are coated with a resilient material, such as rubber.

Abstract: Apparatus is disclosed which is attached to the ends of a heat exchanger tube to capture a tube cleaning brush or sponge that has been propelled back and forth through the tube by reversing the direction of flow of the circulating cooling fluid. The apparatus includes a tubular synthetic polymer cage with perforated walls which receives the expelled cleaning element and holds it in alignment with the tube and a tandemly positioned tubular synthetic polymer adapter which is bonded at one end to an open end of the tube and which functions as a conduit for the movement of the cooling fluid and cleaning element between the tube and cage. The adapter and cage are coupled through lockable mating open ends which permit the cage to be removed manually and non-destructively, thereby providing fast and unobstructed access to the interior of the tube by test probes. A particularly secure coupling also is disclosed in which these mating open ends are the male and female elements of a snap fastener.