| 摘要 |
<p>A mechanical drive system of an aircraft gas turbine engine includes a tower shaft (28) operatively connected to first and second shafts (38,40) in an accessory drive gearbox (30). The first shaft (38) rotates at a rotational speed lower than the rotational speed of the tower shaft (28) and the second shaft (40) rotates at a rotational speed equal to or higher than the rotational speed of the tower shaft (28), achieved by two pairs of bevel gears (52/56;54/58) of which two bevel gears (52,54) are mounted to the tower shaft (28).</p> |
