Heatable controlled deflection roll

Details Heatable controlled deflection roll Heatable controlled deflection roll

D - Textiles, Paper

21

G

92/4

D21G 1/02 (2006.01) D02J 13/00 (2006.01) F16C 13/00 (2006.01)

Patent

CA 1314165

Attorney's Docket No. 8010 CAN INVENTOR: CHRISTOPH LINK INVENTION: HEATABLE CONTROLLED DEFLECTION ROLL ABSTRACT OF THE DISCLOSURE A heatable controlled deflection roll contains hydrostatic support elements, each of which is supported in a pressure chamber and displaceable in a predetermined support or pressing direction. Heating of the rotatable roll shell or jacket of the controlled deflection roll is accomplished by infeeding a heated hydraulic heat carrier medium to bearing pockets of the hydrostatic support elements. This infeed of the heated hydraulic heat carrier medium is effected operationally separate from the provision of the pressure chamber with hydraulic pressurized fluid medium colder than the heated hydraulic heat carrier medium. The infeed of the hydraulic heat carrier medium and the infeed of the hydraulic pressurized fluid medium are thus accomplished via separate lines without thermal stressing of associated regulating valves and pumps and without a viscosity reduction of the hydraulic pressurized fluid medium, such viscosity reduction resulting in a loss of hydraulic pressurized fluid medium. In one embodiment of the hydrostatic support elements there are provided cavities which can be supplied with the hydraulic heat -1- carrier medium separate from the infeed of the hydraulic pressurized fluid medium. In another embodiment of the hydrostatic support elements the infeed of hydraulic heat carrier medium is accomplished through the pressure chamber by a tubular-shaped sleeve sealingly displaceable relative to the pressure chamber. WWK/(gr)/ck/CNC1 -2-

598795

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