General Electric Company Polska Sp. z o.o.

Gas turbine engines with inlet guide vanes are described herein. The inlet guide vanes have throat solidity (TS), variable throat solidity (VTS), and span throat solidity (STS) values within particular ranges.

Methods, apparatus, and articles of manufacture to measure pressure of a fluid are disclosed. An example apparatus includes a probe head including ports oriented in respective different directions such that fluid is to flow into at least one of the ports regardless of a direction of flow of the fluid, an array of check valves arranged in a wall of a measurement chamber, and tubes fluidly coupled between the ports and the array of check valves to fluidly couple the ports to the measurement chamber.

An electrical machine includes a stator assembly coupled to an engine stator component of a propulsion engine. The stator assembly includes a stator support assembly fixedly attached to the engine stator component and a stator disposed on a supporting surface of the stator support structure. The electrical machine also includes a rotor assembly including a rotor support structure connected to a shaft of the propulsion engine and a rotor attached to the rotor support structure such that the rotor is disposed radially inward of the stator. The rotor exchanges rotational energy with the shaft to operate as either an electrical motor or an electrical generator.

An example turbo engine includes a propeller including a blade, the blade rotatable about a centerline axis to change a pitch of the blade; and a blade pitch control system including: a fan pitch actuation system coupled to the blade, the fan pitch actuation system moveable to rotate the blade from a first pitch angle to a second pitch angle based on an amount of hydraulic fluid pumped into the fan pitch actuation system; an accumulator to store the hydraulic fluid; and a valve coupled to an output of the accumulator and an input of the fan pitch actuation system, the valve to automatically provide the hydraulic fluid from the accumulator to the fan pitch actuation system based on a control signal.

A generator assembly includes a stator assembly coupled to an engine stator component of a propulsion engine, the stator assembly including: a stator support structure fixedly attached to the engine stator component; a stator disposed on a supporting surface of the stator support; a manifold coupled to the stator support, the manifold defining a connection volume and including at least one coolant opening at a connection end of the manifold; and an electrical connector extending between the stator and a connection device disposed on the connection end. The generator assembly also includes a rotor assembly comprising a rotor support structure connected to a shaft of the propulsion engine and a rotor attached to the rotor support structure, wherein the rotor rotates in conjunction with the shaft to generate a power signal that travels through the electrical connector to the connection device.

A gas turbine engine includes a fan located at a forward portion of the gas turbine engine. A compressor section and a turbine section are arranged in serial flow order. The compressor section and the turbine section together define a core airflow path. A rotary member is rotatable with at least a portion of the compressor section and with at least a portion of the turbine section. An electrical machine is coupled to the rotary member and is located at least partially inward of the core airflow path in a radial direction. An enclosure at least partially encloses the electrical machine. The enclosure at least partially defines a first cooling airflow path within the enclosure that at least partially defines a first cooling airflow buffer cavity at least partially around the electrical machine. The first cooling airflow path is in communication with a second cooling airflow path located outside the enclosure that at least partially defines a second cooling airflow buffer cavity at least partially around the enclosure. A cooling duct provides pressurized air to the first cooling airflow path such that the air flows along both the first cooling airflow path and the second cooling airflow path providing the first cooling airflow buffer cavity and the second cooling airflow buffer cavity.

A turbine engine is provided. The gas turbine engine defines a radial direction and includes: a rotor; a stator comprising a carrier; a seal assembly disposed between the rotor and the stator, the seal assembly comprising a seal segment, the seal segment having a seal face configured to form a fluid bearing with the rotor; and a seal support assembly, the seal support assembly including a magnet assembly having a magnet coupled to the carrier or the seal segment for biasing the first seal segment along the radial direction.

Propulsion engines and methods of accessing components within propulsor cavities of propulsion engines are disclosed. A propulsion engine includes an outer engine housing that includes a propulsor cavity located therein. The propulsor cavity is axially located between a low-pressure compressor and a fan of the propulsion engine. An electric converter is disposed within the propulsor cavity.

Heat exchange systems with fluid intake control and associated methods are disclosed. An example system includes a conduit to carry a first fluid, a heat exchanger operatively coupled to the conduit, the heat exchanger to cause the first fluid to exchange thermal energy with a second fluid, a fan positioned in a portion of the conduit to drive the first fluid past the fan, wherein the fan is electrically driven, and a valve coupled to the conduit, wherein the first fluid flows through the portion of the conduit when the valve is in a first position, and wherein the valve blocks the first fluid from flowing through the portion of the conduit when the valve is in a second position.

An electrical cable assembly includes a cable portion and a connector housing portion coupled to the cable portion. The cable portion includes a first electrical conductor circumferentially surrounded by a first set of layers. The first set of layers includes a first semiconductive layer, a first insulative layer, a second semiconductive layer, a magnetic layer, a second insulative layer, and an electrically conductive. The connector housing portion includes a connector housing, a printed circuit board disposed within the connector housing; and a set of capacitors mounted to the printed circuit board and coupled to the magnetic layer.