Stator of hydraulic machine with the end-face sealing of vanes

Details Stator of hydraulic machine with the end-face sealing of vanes Stator of hydraulic machine with the end-face sealing of vanes

1974-09-27

1976-03-30

Raduazo, Henry F.

Rotary kinetic fluid motors or pumps

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

For shaft sealing, packing, lubricating or bearing means

415163, 415170A, F01D 1714, F01D 1100

Patent

active

039471470

ABSTRACT:
A stator of a hydraulic machine with the end-face sealing of vanes comprises an upper rim, a lower rim and rotatable stator vanes mounted with their journals in said rims in such a manner as to form an annular row. The upper and lower rims are provided with holes for receiving the vane journals and with rectangular recesses located between the adjacent holes receiving the vane journals in the zone of projection of the section of the vanes on said rims when the vanes are in the closed position. In order to eliminate leakages of liquid between the rims and the end faces of the vanes, a seal is disposed in each recess along the entire length thereof. The seal comprises a gasket inserted in the recess with a space remaining between the base thereof and the bottom of the recess, the gasket having at least one through passage for filling the space with liquid flowing to the stator. The passage has the cross-sectional area sufficient to build-up a pressure beneath the gasket for urging it against the end faces of the vanes. In order to prevent leakages through the space, a sealing member is mounted between the gasket and the rim.

REFERENCES:
patent: 2873683 (1959-02-01), Sherwood
patent: 2875979 (1959-03-01), Danel et al.
patent: 3284086 (1966-11-01), Primrose et al.
patent: 3332441 (1967-07-01), Schaale
patent: 3743435 (1973-07-01), Sproule et al.

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