Power plants – Pressure fluid source and motor – Coaxial impeller and turbine unit
Patent
1978-12-18
1980-05-06
Geoghegan, Edgar W.
Power plants
Pressure fluid source and motor
Coaxial impeller and turbine unit
60359, 60337, F16D 3306
Patent
active
042010500
ABSTRACT:
A rotating fluid coupling of the type which has a primary coupling half and a secondary coupling half which together form a working chamber which is filled with working fluid. A control device which is arranged on the secondary coupling half is used to regulate the rotary take-off drive speed of the coupling by comparing an operating value, such as the centrifugal force which is a result of the rotating drive speed, with a variable command value and when the operating value differs from the command value initiates adjustment of the rotary drive speed. A fluid container on the secondary coupling half revolves with the secondary coupling half. A stationary supply line for control fluid to the fluid container is provided with a permanent outlet opening at a distance from the axis of rotation of the fluid coupling. A control piston is provided, the operating surface of which is spaced from the inner surface of the centrifugally driven fluid surface by a distance which locates the operating surface approximately at the permanent outlet opening. The control is thus independent of the rotary speed of the coupling. Some slight drift may occur during a change in speed until the forces balance out, but such variation in control is only momentary and the drifting is thus minimal.
REFERENCES:
patent: 3405524 (1968-10-01), Nelden
patent: 4023362 (1977-05-01), Rogner et al.
Geoghegan Edgar W.
Voith Turbo GmbH & Co. KG
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