LARGE-DIAMETRAL TURBINE OF HEAT-INSULATING STRUCTURE COMPOSITE MATERIAL AND MANUFACTURE THEREOF

摘要

PROBLEM TO BE SOLVED: To manufacture a large diameter turbine of heat resistant structure composite material so as to reduce manufacturing cost. SOLUTION: Flat annular plates 21 made of heat resistant structure compound material is laminated along a common shaft to manufacture a hub 20. Approximately two-dimensional fiber woven fabric of plate or sheet shape is formed into blade preform, and this preform is made into a high density state along with a matrix and machined to manufacture each blade. As to two end plates 30, 40 at both ends of a turbine, annular preform is manufactured of approximately two-dimensional fiber woven fabric of plate or sheet shape, and this preform is made into a high density state along with a matrix to form heat resistant structure composite material. Each blade 10 is connected to the hub 20 through a part forming its root 13.