An auxiliary gearbox has a low speed input shaft driving a first plurality of accessories. A high speed input shaft drives a second plurality of accessories. The first plurality of accessories rotating about a first set of rotational axes, which are parallel to each other and perpendicular to a first plane. The second plurality of accessories rotating about a second set of rotational axes, which are parallel to each other and perpendicular to a second plane. The first and second planes extending in opposed directions away from a drive input axis of the high speed input shaft and the low speed input shaft. The low speed input shaft drives a variable speed transmission. A gas turbine engine is also disclosed.

Method for assembling a turbomachine (1) by means of a device (10), the turbomachine comprising at least two modules (3) which are assembled by the insertion of a shaft of one of the modules into a housing of the other of the modules, the device comprising: means (11) for supporting a first of the modules, means (20, 21) for suspending a second of the modules and for moving this second module along an axis of movement (Z), a laser beam emitter (30) intended to be fixed to the said first module and configured to emit a laser beam (31) that coincides with a longitudinal axis (X) of this first module, and a target (40) intended to be fixed to the said suspension and movement means so that it can be moved along the said axis of movement, and so that in at least two axial positions on this axis which are distant from one another, a spot from the said laser beam is located at the centre of the said target, the method being characterized in that it comprises the steps of: a) positioning the said first module (3) on the said support means (11), b) fixing the said target (40) to the said suspension and movement means, c) determining a first axial position of the said target, for which position a spot from the said laser beam (31) is positioned at the centre of the said target, d) moving the said target along the said movement axis (Z), and e) determining a second axial position of the said target, for which position a spot from the said laser beam is located at the centre of the said target, so as to validate the parallelism between the said longitudinal axis (X) of the said first module and the said movement axis.

A power generation system includes a shroud that defines a fluid flow path. A gas turbine engine is in the fluid flow path, and the gas turbine engine includes a compressor, a combustor downstream from the compressor, and a turbine downstream from the combustor. An electric generator is in the fluid flow path upstream from the compressor. The electric generator includes a rotor coaxially aligned with the turbine, and the turbine and the rotor rotate at the same speed

A turbine engine with a turbine core that includes a compressor section having a compressor coupled to a high speed shaft, a combustion section, a turbine section having a high pressure turbine coupled to the high speed shaft and a low pressure turbine coupled to a low speed shaft, and a nozzle section. The turbine engine also includes an electric machine that can operate in a first starting mode and a second generating mode.

An assembly includes a variable area inlet and an inlet duct. The variable area inlet includes an inlet structure and a center body structure. The inlet structure extends circumferentially about the center body structure with an outer inlet passage radially between the center body structure and the inlet structure. The center body structure includes an outer body and an inner body. The outer body extends circumferentially about the inner body with an inner inlet passage radially between the inner and outer bodies. The inner body is configured to move along a centerline relative to the outer body between a first position and a second position. The inlet duct is fluidly coupled with the outer inlet passage when the inner body is in the first position. The inlet duct is fluidly coupled with the outer inlet passage and the inner inlet passage when the inner body is in the second position.

A rotor assembly includes: a rotor disc; a plurality of rotor blades fixed to the rotor disc and extending radially outward in a radial direction of the rotor disc; and at least one rolling element configured to roll on a curved surface facing inward in the radial direction of the rotor disc.

A power generation system includes a shroud that defines a fluid flow path. A gas turbine engine is in the fluid flow path, and the gas turbine engine includes a compressor, a combustor downstream from the compressor, and a turbine downstream from the combustor. An electric generator is in the fluid flow path upstream from and coaxially aligned with the turbine. The turbine includes an integrally bladed rotor.

A pumped heat energy storage (PHES) system, involving an annular ducting arrangement is provided. Disclosed embodiments are believed to resolve the issue of containing a high temperature working fluid at elevated pressure by appropriately compartmentalizing by way of the annular ducting arrangement the functions of temperature management and pressure containment in a cost-effective and reliable manner.

A gas turbine engine includes a primary flowpath connecting a compressor section, a combustor section and a turbine section. The turbine section includes a stage vane having a radially outward platform and a vane extending into the primary flowpath. The platform includes a cooling plenum. At least one retaining feature extends radially outward from the platform. At least one vectored cooling hole is disposed in the retaining feature and is configured to direct cooling air from the plenum to an adjacent gaspath component.

A pumped heat energy storage (PHES) system, involving an annular ducting arrangement is provided. Disclosed embodiments are believed to resolve the issue of containing a high temperature working fluid at elevated pressure by appropriately compartmentalizing by way of the annular ducting arrangement the functions of temperature management and pressure containment in a cost-effective and reliable manner.