摘要:
A compressor case (62) for a gas turbine engine (20) includes an annular body that extends circumferentially around a center axis (A) and extends axially along the center axis (A). A first bleed manifold (70) is formed on an outer surface of the annular body and encloses a first plenum (71). A second bleed manifold (72) is formed on the outer surface of the annular body and is axially aft of the first bleed manifold (70). The second bleed manifold (72) encloses a second plenum (73). A bleed inlet (74) extends through the annular body and into the first bleed manifold (70). Cooling passages (76) are formed in the annular body, and each of the cooling passages (76) extends from the first plenum (71) to the second plenum (73) and fluidically connects the first plenum (71) to the second plenum (73).
摘要:
A two-tier lubrication system (100) may comprise an oil nozzle (118) located in a bearing compartment (120). A main oil system (101) may be configured to provide oil to the oil nozzle (118). A scavenge system (130) may be configured to collect oil from the bearing compartment (120). A valve (160) may be fluidly coupled between the main oil system (101) and the scavenge system (130). The valve (160) may be configured to actuate between a main flow position and a scavenge flow position.
摘要:
An auxiliary power unit (10) for an aircraft, having a compressor (18), an intercooler (26) including first conduit(s) having an inlet in fluid communication with the compressor outlet (180) and second conduit(s) configured for circulation of a coolant therethrough, an engine core (12) having an inlet (12i) in fluid communication with an outlet of the first conduit(s), and a bleed conduit (74) in fluid communication with the outlet of the first conduit(s) through a bleed air valve. The auxiliary power unit may include a generator (14) in driving engagement with the shaft of the engine core (12) to provide electrical power for the aircraft. A method of providing compressed air and electrical power to an aircraft is also discussed.
摘要:
An actuator (402) includes a pump (705) including a first cavity (708) and a diaphragm (704) coupled in flow communication with the first cavity. The diaphragm is configured to pressurize a fluid contained in the first cavity. The pump further includes a first valve (706) coupled in flow communication with the first cavity. The first valve is configured to release fluid from the first cavity when the first cavity is pressurized. The actuator also includes a piston assembly (712,713) operatively coupled to the pump.
摘要:
In a method for operating a multi-shaft combined cycle plant, a low load mode for adjusting the output of the multi-shaft combined cycle plant by adjusting only the output of a gas turbine, and a high load mode in which the output of the multi-shaft combined cycle plant can be adjusted by adjusting the output of both the gas turbine and a steam turbine, are switched according to the required load (S15). In the low load mode, the steam turbine is supplied with steam at a standby flow rate amount at which the steam turbine can maintain a predetermined initial load, and the initial load is imposed on the steam turbine (S21 to 23).
摘要:
A first actuator moves a compressor rotor and compressor blades along a rotational axis of the compressor rotor. A turbine rotor includes a plurality of turbine blades each extending radially outwardly from the turbine rotor to an outer tip. A turbine housing surrounds each of the turbine blade tips. The turbine housing has an inner surface, and a turbine tip clearance is defined between each of the turbine blade tips and the inner surface of the turbine housing. A second actuator moves the turbine rotor and the turbine blades along a rotational axis of the turbine rotor. A control controls the first actuator of the compressor rotor, and the second actuator of the turbine rotor to control the compressor tip clearance and the turbine tip clearance.
摘要:
In a telemetry system (100) in a high-temperature environment of a combustion turbine engine (10), a wireless power-receiving coil assembly (116) may be affixed to a movable component (104) of the turbine engine. Power-receiving coil assembly (116) may include a radio-frequency transparent housing (130) having an opening (132). A lid (134) may be provided to close the opening of the housing. Lid (134) may be positioned to provide support against a surface (120) of the movable component. An induction coil (133) is disposed in the housing distally away from the lid and encased between a first layer (136) and a last layer (140) of a potting adhesive. Lid (134) is arranged to provide vibrational buffering between the surface (120) of the movable component (104) and the layers encasing the induction coil.
摘要:
Die Erfindung betrifft eine Steckverbindung (20) für zwei elektrische Messignalleitungen (18, 19) in einer Dampfturbine (5), wobei die Steckverbindung (20) im Dampfraum (4) zwischen Innengehäuse (2) und Aussengehäuse (3) der Dampfturbine angeordnet ist und eine geeignete dampfdichte Ummantelung (23) aufweist, um die Steckverbindung (20) vor den hohen Dampfparametern zu schützen.