초록 ▼

A balance ring (18) which is shrunk fit within each disk (12) of a rotor is selectively ground for detail balance. A plurality of openings (20) through the outer edge of the balance ring receive weights during the assembly balance of the rotor. A snap ring (44) retains the weights within the opening

A balance ring (18) which is shrunk fit within each disk (12) of a rotor is selectively ground for detail balance. A plurality of openings (20) through the outer edge of the balance ring receive weights during the assembly balance of the rotor. A snap ring (44) retains the weights within the openings. An eccentric inwardly extending raised area (26) throughout a substantial minority of the circumference provides for initial gross unbalance correction upon installation.

대표청구항 ▼

A rotor balance system for an integrally bladed gas turbine engine rotor comprising: a plurality of disks, each carrying a plurality of integral blades; a single balance ring internally shrink fit to each disk; an eccentric raised area throughout a substantial minority of the circumference of each b

A rotor balance system for an integrally bladed gas turbine engine rotor comprising: a plurality of disks, each carrying a plurality of integral blades; a single balance ring internally shrink fit to each disk; an eccentric raised area throughout a substantial minority of the circumference of each balance ring, said balance ring being substantially uniform throughout the remainder of the circumference; said balance ring selectively ground to establish a detail balanced condition of each disk; a plurality of openings through the outer edge of each balance ring; a plurality of balance weights within said openings for establishing a balanced condition of the assembled plurality of disks; and a snap ring internal of each disk adjacent to said balance ring for retaining said balance weights within said openings.