HIGH AND LOW SPOOL ACCESSORY GEARBOX DRIVE
First Claim
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1. A gas turbine engine comprising:
- a low speed spool and a high speed spool, with each of said spools including a turbine to drive a respective one of said spools;
said high speed spool rotating at a higher speed than said low speed spool;
a high speed power takeoff driven to rotate by said high speed spool, and a low speed power takeoff driven to rotate by said low speed spool;
said high speed power takeoff driving a starter generator and a permanent magnet alternator; and
said low speed power takeoff driving a variable frequency generator.
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Abstract
A gas turbine engine comprises a low speed spool and a high speed spool, with each of the spools including a turbine to drive a respective one of the spools. The high speed spool rotates at a higher speed than the low speed spool. A high speed power takeoff is driven to rotate by the high speed spool, and a low speed power takeoff is driven to rotate by the low speed spool. The high speed power takeoff drives a starter generator and a permanent magnet alternator. The low speed power takeoff drives a variable frequency generator.
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Citations
20 Claims
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1. A gas turbine engine comprising:
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a low speed spool and a high speed spool, with each of said spools including a turbine to drive a respective one of said spools; said high speed spool rotating at a higher speed than said low speed spool; a high speed power takeoff driven to rotate by said high speed spool, and a low speed power takeoff driven to rotate by said low speed spool; said high speed power takeoff driving a starter generator and a permanent magnet alternator; and said low speed power takeoff driving a variable frequency generator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification