摘要:
This vehicle mechanical component includes a mechanical component body, a heat insulating layer formed on the mechanical component body, and a protective layer formed on the heat insulating layer and including an inorganic compound that includes an alkoxide and scale-like inorganic solid particles dispersed in the inorganic compound.
摘要:
A component for a gas turbine engine comprises an underlying substrate. A plurality of ceramic panels have intermediate thermal expansion joints bonded by a bond layer to the underlying substrate. The thermal expansion joints are formed of a material having a greater coefficient of expansion than a material forming the ceramic panels. The ceramic panels and the thermal expansion joints are positioned to define an outer surface for the component. A gas turbine engine and a component for a gas turbine engine are also disclosed.
摘要:
A hollow vane, consisting of a main portion (1), of which the cavity (4) is closed by a cover (5), is produced by expanding the main portion (1) relative to the cover (5), for example by means of differential thermal expansion, then by placing the cover (5) at the bottom (11) of the opening (8) of the cavity (4), before allowing the main portion (1) to close again, closing a nesting between a protrusion (6) at the bottom of the cover (5) and a widening (10) at the bottom of the opening (8). This avoids disadvantages relating to the use of welding, glue or indeed assembly parts.
摘要:
A fan section of a gas turbine engine includes a fan containment case assembly includes an outer case of an aluminum alloy. The outer case extends circumferentially around an axial centerline. A thermally conforming liner assembly is located inwardly of the outer case. The thermally conforming liner assembly includes a circumferential liner of an aluminum alloy. A ballistic liner is located between the outer case and the thermally conforming liner assembly.
摘要:
A coating comprising a first surface and a second surface is provided. The coating includes a plurality of growth domains. An orientation of at least one growth domain of the plurality of growth domains is non-vertical with respect to the first surface of the coating. One or more growth domains of the plurality of growth domains comprise a plurality of at least partially melted and solidified particles.
摘要:
A cooling arrangement for a gas turbine engine. The cooling arrangement comprises a discharge channel (30) for air flow from a compressor, a first cooling channel (44) and at least one aperture (40) providing communication between the flow of air through the discharge channel (30) and the first cooling channel (44). A restrictor device (42) in the aperture (40) regulates the flow of air between the discharge channel (30) and the first cooling channel (44). The restrictor device (42) deforms to vary air flowing through the aperture (40) in response to a physical condition of the engine. This physical condition of the engine may be that of the temperature of air flowing through the discharge channel, the restrictor device (42) responding to regulate the flow of air based on that temperature. The restrictor device (42) may be a two-way shape memory alloy.
摘要:
A multilayer coating (100) includes a bond coat layer (102) and a first barrier layer (104) applied on the bond coat layer. The first barrier layer (104) has a compositional gradient comprising a majority of a first rare earth stabilized zirconia material proximate the bond coat layer (102) to a majority of a second rare earth stabilized zirconia material away from the bond coat layer. The first and second rare earth stabilized zirconia materials are different.
摘要:
It is known that overshoot in fuel flow rate as a result of compensating for engine heat soak effects can create transient over values in desired thrust parameters. By adjusting the normally calculated fuel flow rate to a fuel regulator (22) by the introduction of a fuel flow adjustment dependent upon a variable which is related to heat soak effects it is possible to reduce the extent of overshoot as well as the transient time period of that overshoot to ongoing operational state. The variable used may be direct or indirect and will generally utilise a temperature sensor (25) within the engine and/or other engine control procedures which may be extrapolated from such sensor values to provide a variable for heat soak compensation.