MOVING BLADE AND MANUFACTURE THEREOF

• Main Author: YOKOI SHINYA
• Format: Patent
• Language: English
• Published: 31.07.1992
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

PURPOSE:To obtain an inexpensive moving blade light in weight having a high specific strength and specific stiffness by laminating plate shaped-prepreg members having resin fiber arranged in the same direction so as to form a moving main body and a blade root part, and inserting a partition plate into the center part thereof. CONSTITUTION:A moving blade (including a variable moving blade) is provided with a moving blade main body 1, a blade root part 2 communicating therewith, and a partition plate 3 inserted as a core extending from the blade root part 2 into the moving blade main body 1. In this case, plate shaped-prepreg members 4 to 6 are used, in which the respective directions of resin fibers 4a to 6a serving as reinforced members are arranged in the same direction. This moving blade main body 1 is formed by laminating the respective prepreg members 4, 5, and the blade root part 2 is formed by laminating the respective prepreg members 4, 6. Hence, melted resin generated at the time of compressed-forming flows along the partition plate 3, and flows in the same direction as the resin fibers 4a to 6a. As a result, one way direction property of the resin fiber is maintained so as to prevent generation of unconformity phenomenon of the resin fiber and improve strength.