Patent ID: 6638455
Filing Date: 2003-10-28
Classification: B29C

Abstract:
A method for internal cooling of a rotating object (4) with liquid gas, said rotating object rotating around a rotation axis (a), said gas being introduced into said rotating object (4) from a fixed object (5), wherein said liquid gas is pressed from at least one inlet channel (61) in said fixed object (5) into a ringshaped groove (62) located on a contact surface (45) between said fixed object (5) and said rotating object (4), pressed from said ring-shaped groove (62) into at least one channel (63, 64.1, 64.2) in said rotating object (4) and delivered to at least one part (15) of said rotating object, said gas, upon reaching said at least one part, evaporating while absorbing vaporization heat and thereby cooling said at least one part, and is removed in the form of gaseous gas.