Power plants – Pressure fluid source and motor – Coaxial impeller and turbine unit
Patent
1975-03-03
1976-05-11
Geoghegan, Edgar W.
Power plants
Pressure fluid source and motor
Coaxial impeller and turbine unit
60359, 60364, F16D 3306, F16D 3312
Patent
active
039553680
ABSTRACT:
In a hydraulic coupling the pump element is provided with an annular reservoir rotatable therewith, the reservoir having its interior divided into separate analogization and stall compartments by a weir. A first set of catches feeds liquid from the working chamber into the analogization compartment and the volume which can remain therein is controlled by speed sensitive valves which feed excess liquid into the stall compartment from wherein it returns to the working chamber. The valve control the filling of the working chamber so that the power transmission capacity of the coupling is maintained analogous with the power output of the associated prime mover at that speed. Upon the existence of stall conditions with the turbine element a second set of radially-inward catches are engaged by the working liquid and fill the stall compartment to almost empty the working compartment and permit the coupling to continue operating without dangerous overload of itself or the prime mover.
REFERENCES:
patent: 2689458 (1954-09-01), Weymann
patent: 3399533 (1968-09-01), Becker
Cluaran Associates Ltd.
Geoghegan Edgar W.
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