A fuel ecology system includes a fuel ecology reservoir having a reservoir volume, includes a moveable barrier disposed within the reservoir volume, the movable barrier defining a first volume and a second volume within the reservoir volume, a fuel inlet port in fluid communication with the first volume, a fuel outlet port in fluid communication with the first volume, and a vent port in fluid communication with the second volume.

Systems and methods for preventing fuel leakage in a gas turbine engine are provided. A fuel accumulation system includes a control valve section fluidly coupled to a fuel manifold passage and an accumulator valve section fluidly coupled at a first side to the control valve section. The control valve section is configured to control expansion of a fluid flowing in the fuel manifold passage. The accumulator valve section is configured to receive fluid expanded in the fuel manifold passage via the control valve section.

A sump housing apparatus for a gas turbine engine includes: an annular body; and a plurality of service tubes arrayed around the body, each service tube having a proximal end intersecting the body and an opposed distal end, each service tube having an inner port communicating with an interior of the body; wherein the body and at least one of the service tubes are part of a monolithic whole.

An engine fuel system is disclosed for managing drainage of fuel in response to an engine shut-down condition. For normal operation, a piston of a piston assembly is maintained in a first position by pressurized fuel in a volume on a first side of the piston. In response to engine shut-down, pressure is removed from the first side of the piston and fuel in the volume on the first side of the piston is drained into a return conduit that is part of the fuel system's thermal management system. Displacement of the piston in response to removal of pressure on the first side of the piston creates a volume on a second side of the piston for drainage of fuel from a fuel manifold.

A gas turbine engine fuel system (100) comprises: a combustor (20) comprising at least one fuel injector (106), a fuel manifold (104) configured to supply fuel to each injector (106) and a drain tank (108) in fluid communication with the fuel manifold (104). Each fuel injector (106) comprises a first check valve (132) configured to allow one-way flow from the manifold (104) to the fuel injector (106), and a second check valve (134) configured to allow one-way flow from the fuel injector (106) to the fuel manifold (104). The system (100) further comprises a vacuum generator (112) configured to selectively provide below atmospheric pressure to the drain tank (108).

The invention relates to a turbine engine exhaust casing (1), characterized in that it comprises: a hub (2), an outer ring (3); a plurality of structural arms (10) arranged circumferentially between the hub (2) and the outer ring (3); a stiffener (11) extending along at least a portion of the inner circumference of the hub (2),
the hub (2) comprising at least one discharge hole (15), and the stiffener (11) comprising at least one discharge slot (16), so as to enable the discharge of a fluid from the casing (1). The invention also relates to a turbine engine comprising such an exhaust casing.

A gas turbine engine system 1 comprises a gas turbine engine 2; a purge gas supply line 4 connected to a first connection section P.sub.1 on the fuel supply line 3 connected to the gas turbine engine 2; a fuel discharge line 7 connected to a second connection section P.sub.2 of the fuel supply line 3 which is located downstream of the first connection section P.sub.1; a blowoff valve 72 disposed on the fuel discharge line 7, and a passage switching device 50 which performs switching of the fuel supply line 3 between a fuel supply mode and a purge mode. A check valve 73 and a flame arrester 74 are disposed on the fuel discharge line 7 at locations that are downstream of the blowoff valve 72.

A compressor arrangement having a main compressor, a piping system containing process gas to be extracted after the shut-down of the main compressor and one or more components emitting or leaking depressurized process gas while the compressor is operating or starting up; the compressor arrangement further comprises one or more collectors arranged to collect the depressurized process gas emitted from said components and an additional compressor fluidly coupled with the piping system and with the collectors in in order to compress the depressurized process gas coming from the components while the compressor is starting up or operating and to compress process gas coming from the piping system after a shut-down of the compressor.

A steam turbine stator vane includes a vane body portion which has a vane surface including a pressure surface and a suction surface, a moisture removal channel disposed in the vane body portion, at least one slit opening to the vane surface to communicate with the moisture removal channel and extending along a height direction from a base end portion toward a tip end portion of the vane body portion, and at least one groove portion disposed in the vane surface and extending from the base end portion along the height direction, at least a part of the at least one groove portion overlapping the at least one slit along the height direction.

A system includes a fluid distribution system. The fluid distribution system includes a first water wash nozzle configured to spray a wash fluid into an intake flow received through a bell mouth of a compressor during operation of the compressor in a water wash mode. The first water wash nozzle includes a first inlet end coupled to the bell mouth of the compressor, a first tip disposed opposite the first inlet end, and a first body of the first water wash nozzle extending from the first inlet end to the first tip toward an axis of the compressor. The first water was nozzle further includes a first outlet disposed at the first tip and configured to spray a first portion of the wash fluid into the intake flow during operation of the compressor in the water wash mode and a second outlet disposed along the first body and configured to spray a second portion of the wash fluid into the intake flow during operation of the compressor in the water wash mode.