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DUCT APPARATUS, HAVING LOW STRUCTURAL COST DUCT APPARATUS HAVING LOW STRUCTURAL COST, CAPABLE OF LOWERING THE STRUCTURAL COST AND SECURING A RELIABLE FUNCTION UNDER HIGH THERMAL LOAD
DUCT APPARATUS, HAVING LOW STRUCTURAL COST DUCT APPARATUS HAVING LOW STRUCTURAL COST, CAPABLE OF LOWERING THE STRUCTURAL COST AND SECURING A RELIABLE FUNCTION UNDER HIGH THERMAL LOAD
PURPOSE: A duct apparatus is provided to lower the structural cost and to secure a reliable function under high thermal load. CONSTITUTION: A duct apparatus for a radial-flow turbine has a blade adjusting a pass flow by an adjusting device. The duct apparatus has an adjusting ring(18) having recesses(17) opened outward and adjusting levers(11) each engaged with the recesses by one circular end portion. The recesses are defined by two bearing surfaces radially extended. The adjusting levers are each coupled to blade shafts(5) at the other end in a state incapable of rotating.
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