Rotary kinetic fluid motors or pumps – With lubricating – sealing – packing or bearing means having... – For shaft sealing – packing – lubricating or bearing means
Patent
1977-10-26
1980-05-20
Freeh, William L.
Rotary kinetic fluid motors or pumps
With lubricating, sealing, packing or bearing means having...
For shaft sealing, packing, lubricating or bearing means
415160, 415172R, 415163, F01D 1100, F01B 2502
Patent
active
042037034
ABSTRACT:
A hydraulic turbo-machine incorporating wicket gates for purposes of controlling and closing down the flow of working fluid through the machine is provided with an annular ring gate selectively operable to take up any operating clearance between the casing and the adjacent axial edge of the wicket gates. This arrangement makes it practical to incorporate relatively large initial clearances between the wicket gates and the fixed machine structure, so as to leave provision for natural contraction of such clearances during the life of the machine, due to shrinkage of the concrete or other expected or unexpected causes. The operation of the annular ring as a piston within a cylinder is facilitated utilizing penstock water or oil under pressure as the motivating fluid.
REFERENCES:
patent: 1478053 (1923-12-01), Overn
patent: 2291110 (1942-07-01), Sharp
patent: 2423825 (1947-07-01), Blom
patent: 2651492 (1953-09-01), Feilden
patent: 2752175 (1956-06-01), Flelcher
patent: 3059902 (1962-10-01), Savonuzzi
patent: 3743435 (1973-07-01), Stanley et al.
patent: 3947147 (1976-03-01), Loktaeva
patent: 3954348 (1976-03-01), Renaud
Dominion Engineering Works Limited
Eckersley Raymond A.
Freeh William L.
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