Pressurized fluid is stored while a jet engine is running. After engine shutdown, the fluid is used to drive a pneumatic or hydraulic turning motor that rotates the engine's High Pressure (HP) rotor. The rotation encourages even heat distribution across the HP rotor and thus prevents bowing of the HP rotor.
ENGINE TURNING MOTOR VIA PNEUMATIC OR HYDRAULIC MOTOR
2018-10-04
Patent
Electronic Resource
English
Engineering Index Backfile | 1953
Engineering Index Backfile | 1953