| 摘要 |
A bleed valve for bleeding air from a compressed air chamber at start-up of a gas turbine engine is self-actuated. The bleed valve moves between open and closed positions based on the pressure within a compressed air chamber. In this manner, the bleed valve is driven to an open position at low pressure conditions and to a closed position once the pressure within the compressor chamber becomes higher and closer to operating pressures. In this manner, a relatively inexpensive and simple bleed valve can be utilized to provide the start-up bleed valve function.
|
