초록 ▼

A centrifugal machine having a variable diffuser that includes a radially disposed fixed wall and an opposed movable wall defining the diffuser passage. Guideways are formed in the movable wall in which a series of diffuser vanes are slidably mounted. A spring biased retainer loosely holds each of t

A centrifugal machine having a variable diffuser that includes a radially disposed fixed wall and an opposed movable wall defining the diffuser passage. Guideways are formed in the movable wall in which a series of diffuser vanes are slidably mounted. A spring biased retainer loosely holds each of the vanes in an associated guideway and urges the vanes into seating contact with the fixed wall so that each vane can adjust its position in assembly to accommodate for changes in diffuser alignment due to thermal growth or the like.

대표청구항 ▼

In a centrifugal machine having a casing for rotatably supporting an impeller for bringing working fluids to the entrance of a diffuser, said diffuser including a radially disposed fixed wall and a similarly disposed movable wall adjacent thereto for varying the size of the diffuser passage, drive m

In a centrifugal machine having a casing for rotatably supporting an impeller for bringing working fluids to the entrance of a diffuser, said diffuser including a radially disposed fixed wall and a similarly disposed movable wall adjacent thereto for varying the size of the diffuser passage, drive means operatively connected to the movable wall to selectively position the movable wall in regard to the fixed wall between a maximum flow position and a minimum flow position, said movable wall having a series of airfoil shaped vanes slidably contained within complementary openings formed therein, said vanes passing through said movable wall and resting against the fixed wall whereby the vanes span the diffuser passage, and biasing means acting against the back of each vane to urge the vane into seating contact with the fixed wall so that the vane is self-adjusting in assembly.