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US 5,957,660 AGranted
Turbine rotor disk
AssigneeBMW Rolls-Royce GmbH
InventorsNeil M Evans, Thomas Schillinger
Life of this patent
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AssigneeBMW Rolls-Royce GmbH
InventorsNeil M Evans, Thomas Schillinger
Estimating the term…
In connection with a turbine rotating disk with disk grooves, constituted by disk fingers, for receiving turbine blades, as well as with measures for guiding a cooling air flow from a chamber located in front of the disk to one behind the disk, a cooling air transfer channel is provided in at least some of the disk fingers, which respectively starts at the front disk face, and makes a transition into a cooling air exhaust channel, also essentially extending in the radial direction in the disk finger, whose outlet opening on the rear disk face side lies closer to the disk axis than the disk ring section, which has the disk grooves and is widened in the disk axial directions. By means of this it is possible to convey a larger cooling air flow which, in an advantageous manner, indirectly aids the cooling of the disk in the area of the disk grooves.
A turbine rotating disk having disk grooves defined by disk fingers for receiving turbine blades, said disk having means for guiding a cooling air flow from a chamber located on one side of the disk to a chamber located on the opposite side of the disk, wherein some of said disk fingers including a cooling air transfer channel extending from said one side of said disk and passing to a cooling air exhaust channel extending substantially in a radial direction in said disk finger and having an outlet opening on said other side of said disk closer to the disk axis then a disk ring section having said disk grooves, said exhaust channel widening as said exhaust channel approaches said disk axis.
Dependencies are inferred from the claim text.