Guide system for the outer pivot of a variable stator vane,...

Rotary kinetic fluid motors or pumps – Selectively adjustable vane or working fluid control means – Upstream of runner

Reexamination Certificate

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Details

C415S229000

Reexamination Certificate

active

10887832

ABSTRACT:
The system enables an increase in the guidance length of the outer pivot of the vane, so that the bushing can be extracted without needing to open the stator casing. It mainly includes a bushing placed inside a bossing of the stator, the length of which is greater than the length of the bossing projecting outwards from the bossing. Thus, the contact length of the outer pivot is prolonged. The bushing is terminated at its end by a gripping hook to enable extraction of the bushing by means of a claw. It is advantageously also provided with a positioning edge.

REFERENCES:
patent: 3325087 (1967-06-01), Davis et al.
patent: 5308226 (1994-05-01), Venkatasubbu et al.
patent: 6481960 (2002-11-01), Bowen
patent: 6767183 (2004-07-01), Schilling et al.
patent: 1 436 413 (1966-03-01), None
patent: 1 459 593 (1966-10-01), None
patent: 1 548 701 (1968-10-01), None
patent: 1 083 156 (1967-09-01), None
patent: 1 201 949 (1970-08-01), None

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