VANE-ANGLE CONTROLLER FOR FLUID MACHINERY EQUIPPED WITH MOVABLE BLADE

• Main Authors: KONNO DAISUKE, WAKUKAWA TOMOHIRO, AZUMA TAIZOU, OONO TAKAFUMI
• Format: Patent
• Language: English
• Published: 14.06.1985
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PRODUCING MECHANICAL POWER; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

PURPOSE:To prevent a thrust bearing from being applied with a blade-angle operation force by using a slidable piece connected to screw members and a slidable ring. CONSTITUTION:A slidable ring 8 is connected to a slidable piece 10 through a bearing 9, permitting relative revolution and suppressing the transfer in the axial direction with respect to the slidable piece 10. The female screw 10s on the inner periphery of the slidable piece 10 is engaged with a male screw 16s cutting- formed onto the outer periphery of a thrust ring 16 which is installed in relative revolution with respect to a main shaft 1 through a bearing 17 which is fixed onto the main shaft 1, interposed between a shaft nut 18 screwed onto the main shaft 1 and a distance piece 19 attached onto the stepped part of the main shaft 1, and fixed onto the thrust ring 16 by the shoulder of the thrust ring 16 and a bearing press 33. The thrust ring 16 is slided into a pedestal 20 fixed onto a base 15a through a key 21, prevented from revolving. The key 21 and the pedestal 20 do not support the thrust ring 16 in the axial direction.