| 摘要 |
PROBLEM TO BE SOLVED: To easily attach and detach a seal member for sealing the peripheral surface of an auxiliary machine driving shaft supported by a gear box in an auxiliary machine driving unit for gas turbine engine. SOLUTION: A seal member 88 is held between a first flange 86b of a seal holding member 86 to be fitted in a recessed part 12g of a gear box 12 and a flange 12h of the gear box 12 to seal the peripheral surface of an auxiliary machine driving shaft 31 with this seal member 88. When a second flange 86c is drawn from the recessed part 12g of the gear box 12 by engaging a tool with the second flange 86c formed in a side surface of the seal holding member 86, since the seal member 88 is perfectly exposed in the recessed part 12g, the seal member 88 can be easily exchanged in a short time. Since a clearance between the inner peripheral surface of the recessed part 12g and the seal holding member 86 is sealed by an O-ring 87 supported by an O-ring support groove 86a of the seal holding member 86, leak of the oil from the clearance can be securely prevented.
|
