Circumferential gap seal for axial-flow machines

Details Circumferential gap seal for axial-flow machines Circumferential gap seal for axial-flow machines

1980-06-04

1982-06-15

Smith, Leonard E.

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

415127, 415171, 415174, F01D 1100

Patent

active

043348220

ABSTRACT:
Circumferential gap seal for axial-flow machines including a metallic retaining flange mounted within the machine casing and which is connected to a metallic ring through flexible side walls, wherein the side walls, the metallic ring and the retaining flange are subdivided into a plurality of segments in the circumferential direction. The thereby formed radially directed gaps are sealed over the radial height of the side walls through flexible radial walls. The radial height is variable in dependence upon the measured size of the circumferential gap between the tip of the rotor blades of the machine and the metallic ring.

REFERENCES:
patent: 2598176 (1952-05-01), Johnstone
patent: 2620156 (1952-12-01), Parducci
patent: 2994472 (1961-08-01), Botje
patent: 3227418 (1966-01-01), West
patent: 4247247 (1981-01-01), Thebert

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