Abstract: A combustor liner includes a forward end and an aft end, the aft end having a reduced diameter portion and a cooling and dilution sleeve overlying the reduced diameter portion thereby establishing a cooling plenum therebetween. A plurality of cooling and dilution air entry holes are formed in the cooling and dilution sleeve and a plurality of cooling and dilution air exit holes formed adjacent an aft edge of the liner such that, in use, cooling and dilution air flows through the cooling and dilution air entry holes, and through the plenum, exiting the cooling and dilution air exit holes, thereby cooling and dilution tuning the aft end of the combustor liner without having to remove the transition piece.

Abstract: A frame assembly for a photovoltaic panel is disclosed, as is a method for framing a photovoltaic panel. An exemplary embodiment of the frame assembly includes the following: a first elongate support component including a first end, an opposing second end, and a cross section that is approximately F-shaped; a second elongate support component including a third end, an opposing fourth end, and a cross section that is approximately F-shaped; a first elongate retainer component including a cross section that is approximately L-shaped and is configured to be secured to the first end and the third end; and a first elongate retainer component including a cross section that is approximately L-shaped and is configured to be secured to the second end and the fourth end. The disclosed frame assembly permits rapid top-down assembly to increase manufacturing throughput.

Abstract: A combustor liner includes a forward end and an aft end, the aft end having a reduced diameter portion and a cooling and dilution sleeve overlying the reduced diameter portion thereby establishing a cooling plenum therebetween. A plurality of cooling and dilution air entry holes are formed in the cooling and dilution sleeve and a plurality of cooling and dilution air exit holes formed adjacent an aft edge of the liner such that, in use, cooling and dilution air flows through the cooling and dilution air entry holes, and through the plenum, exiting the cooling and dilution air exit holes, thereby cooling and dilution tuning the aft end of the combustor liner without having to remove the transition piece.

Abstract: A chipper chisel retaining nut is provided with a circular groove in its threads which receives a formed flexible semi-circular spring ring which is inserted in the groove through an aperture formed in the exterior of the nut adjacent the groove as a device for preventing accidental unthreading of the nut.