Abstract:
PROBLEM TO BE SOLVED: To provide a means for protecting materials from an environment of a high temperature and the high stress of a compressor of a gas turbine engine.SOLUTION: A thermal barrier 20 operable to maintain the temperature of the shaft below about 700°C (1,300°F) is arranged at least at a first surface 13 of a shaft 14 located at a hot flow path side 16 of gas turbine engine compressor disks 10, 12 even if the hot flow path side 16 reaches a service operating temperature of from about 700°C (1,300°F) to about 788°C (1,450°F).
Abstract:
PROBLEM TO BE SOLVED: To provide an exhaust turbosupercharger having a variable nozzle mechanism component capable of maintaining low manufacturing cost, capable of holding firm tightened state, and having stable quality by tightening the component of the variable nozzle mechanism by less man-hours. SOLUTION: In this variable nozzle mechanism component of the variable displacement type exhaust turbosupercharger, a variable nozzle mechanism varying the vane angles of a plurality of turnably supported nozzle vanes is installed in a case member including a turbine casing. When a shaft-like member fixed to the through-hole of a through-hole-formed member having the through-hole among the components of the variable nozzle mechanism is manufactured, a wear resistant material higher in hardness and larger in wear resistance than a steel plate is built up by a prescribed thickness on the upper surface of the steel plate, and the shaft-like member with a prescribed outer diameter is cut out from the built up part of the wear resistant material and the steel plate. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a thermal insulating ceramic layer for use on metal alloy components exposed to hostile thermal and chemical environment such as a gas turbine. SOLUTION: The thermal barrier coating includes cracks made by a series of steps, including a step of applying a shockwave onto at least a portion of the thermal barrier coating so as to form microcracks in the thermal barrier coating without substantially deforming a substrate. COPYRIGHT: (C)2010,JPO&INPIT