Roll or roller – With inflatable chamber – Antideflection means
Patent
1992-05-19
1993-09-14
Eley, Timothy V.
Roll or roller
With inflatable chamber
Antideflection means
492 7, 492 46, 165 90, B21B 3132, B60B 922
Patent
active
052444481
ABSTRACT:
The invention concerns a method and apparatus for regulating the temperature of an adjustable-crown roll. The roll mantle (12) arranged to revolve on the stationary axle (11) of the roll (10) is loaded by passing a pressure medium into a pressure chamber (15) or series of chambers formed between the axle (11) and the mantle (12) so as to correct the deflection of the roll mantle (12). The roll (10) is additionally heated/cooled by passing heating/cooling fluid into the roll (10). The heating/cooling fluid used for the regulation of the temperature of the roll (10) is introduced into the roll (10) so as to be substantially uniformly distributed over the surface area of the roll (10) such that heat is removed or produced in the radial direction of the roll. The heating or cooling fluid is passed into the pressure chamber (15) in the roll (10), in which case, by its means, pressurization of the chamber (15) is also accomplished, and/or into the unpressurized chamber (16) of the roll (10), in which case the function of the fluid is exclusively regulation of the temperature. The invention further concerns a regulation system for carrying out the method.
REFERENCES:
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patent: 5079817 (1992-01-01), Anstotz et al.
Eskelinen Juhani
Niskanen Juhani
Eley Timothy V.
Martin C. Richard
Valmet Paper Machinery Inc.
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