Guide vane protecting device

Details Guide vane protecting device Guide vane protecting device

1979-10-19

1981-11-10

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

Including destructible, fusible, or deformable non-reusable...

64 28R, 415165, F03B 318, F01D 1716

Patent

active

042995345

ABSTRACT:
A guide vane protecting device for use in a hydraulic turbine. The device has a braking system having a first and a second braking members by which an initial braking power is imparted to a first control member interposed therebetween. The braking system further has a translational sliding mechanism which permits the translational sliding movement of the first braking member onto the first control member so so to cause a uniform increase of the braking force exerted by the braking members on the first control member, when a weakened pin incorporated in the protecting device is broken by an extraordinary force caused by, for example, jamming of foreign matter between adjacent guide vanes.

REFERENCES:
patent: 1517896 (1924-12-01), Enz
patent: 3007628 (1961-11-01), Nichols
patent: 3030072 (1962-04-01), Boyd
patent: 3060706 (1962-10-01), Hess
patent: 3920351 (1975-11-01), Grubb
patent: 3982847 (1976-09-01), Kawase et al.
patent: 4040766 (1977-08-01), Sekido et al.
patent: 4050844 (1977-09-01), Miller et al.

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