Abstract: A fluid valve use in a turbomachine in a high temperature location includes a fluid inlet, a fluid outlet, a fluid circuit defined between the fluid inlet and the fluid outlet, and a solenoid including a solenoid casing. The solenoid is disposed between the fluid inlet and fluid outlet. The solenoid is configured to move a valve member between a closed position, at least one partially open position (e.g., any number of suitable positions), and a fully open position to selectively meter fluid flow through the fluid circuit. The fluid valve can include a valve casing, wherein the solenoid and valve member are disposed in the valve casing.

Abstract: A sensor assembly includes a first structure and a second structure disposed radially outwardly of the first structure. Also included is a sensor body extending through the first and second structures, the sensor body having first and second ends, the first end disposed proximate a first environment and the second end located radially outwardly of the second structure. Further included is a first sealing assembly configured to operatively couple the sensor body to the second structure and to accommodate movement of the sensor body. Yet further included is a position sensor operatively coupled to the sensor body, the position sensor configured to determine a position of a target. Also included is a target surface having a reference portion and an inclined portion located adjacent the reference portion, wherein the position sensor is configured to detect the position of the target based on a distance differential.

Abstract: A measuring system for sensing vane positions that comprises a turbine, a target, and a bellows. The turbine includes a plurality of articulating vanes, with each vane being coupled to a sync ring that is configured to position the plurality of articulating vanes in accordance with a degree of rotation by the sync ring. The target is coupled to a first position of the turbine within a first region that is associated with a first vane of the plurality of articulating vanes. The bellows coupled to the turbine and configured to maintain a sensor reference point at a second position. The sensor reference point at the second position is maintained by the bellows in relation to the target at the first position across a gap.

Abstract: A bleed valve for a gas turbine engine compressor has a valve body and a flapper. The valve body defines a flow path and includes a flapper seat. The flow path extends through the valve body. The flapper is pivotally connected to the valve body and is movable between a closed position and an open position. In the closed position the flapper seats against the flapper seat and blocks the flow path. In the open position the flapper is angled towards the valve body inlet such that fluid moving through the valve body exerts force on the flapper, urging the flapper towards the closed position.

Abstract: A sensor assembly includes a first structure and a second structure disposed radially outwardly of the first structure. Also included is a sensor body extending through the first and second structures, the sensor body having first and second ends, the second end located radially outwardly of the second structure. Further included is a first sealing assembly configured to couple the sensor body to the second structure and to accommodate movement of the sensor body due to relative movement between the first and second structures. Yet further included is an interior cavity of the sensor body, a linear position sensor operatively coupled to the sensor body, and a rotary linkage assembly located within the interior cavity and coupled to a target. Also included is a rotary-to-linear interface disposed between the rotary linkage assembly and the sensor and configured to convert rotational motion of the rotary linkage assembly to linear motion.

Abstract: A bleed valve system includes a flow path defined between a system inlet and a system outlet. A pressure control mechanism is defined in the flow path downstream from the system inlet to selectively block fluid flow in the flow path. A pressure limiter is defined in the flow path downstream from the system inlet and upstream from the pressure control mechanism to block the flow path when the pressure at the system inlet is greater than the pressure capacity of the pressure control mechanism.

Abstract: A movable vane control system is disclosed for use with a gas turbine engine having a turbine axis of rotation. The system includes a plurality of rotatable turbine vanes in a gas flow path within a turbine case of the gas turbine engine. A first vane position sensor having a first distance sensor is configured to sense the distance between the first distance sensor and a surface portion of a first of said plurality of vanes or a first movable target connected to the first vane. Additionally, the first distance sensor, the first vane surface portion, the first movable target, or a combination thereof is configured to provide a variable distance between the first distance sensor and the first vane surface portion or first movable target that varies as a function of a position of the first vane.

Abstract: Aspects of the disclosure are directed to an engine of an aircraft. Aspects of the disclosure include an inlet housing configured to receive core air of an engine, and at least one valve coupled to the inlet housing and configured to bleed the core air during a starting of the engine, where the at least one valve is housed within the engine.

Abstract: A bleed valve assembly includes a flow duct with an inlet and an outlet disposed downstream from the inlet. The outlet is smaller in cross-sectional area than a region of the flow duct disposed between the inlet and the outlet. A piston housing is disposed inside the flow duct between the inlet and the outlet so as to form an annular flow passage between the flow duct and the piston housing. The piston housing is axially aligned with a center axis of the flow duct. At least one rib extends between the flow duct and the piston housing. A sleeve piston is disposed inside the piston housing and is configured to extend downstream of the piston housing in a closed position. The sleeve piston comprises an outer wall that is at least the same in cross-sectional area as the outlet of the flow duct.

Abstract: A bleed valve includes a valve body, a first flapper body movable relative to the valve body between an open position and a closed position, and a second flapper body movable relative to the valve body between an open position and a closed position. A resilient member biases the first and second flapper bodies to the open position to vent bleed air. The first and second flapper bodies move to the closed position when a pressure load across the first and second flapper bodies exceeds a biasing force of the resilient member. A gas turbine engine is also disclosed.

Abstract: A bleed valve includes inlet and outlet housings, a hollow shaft defining a valve axis, and a full-area piston. The shaft includes a first end mounted to an inner diameter portion of the inlet housing and a second end mounted to an end cap of the outlet housing. The piston is slidably mounted to the shaft. A first chamber is defined between an upstream side of the piston and the inner diameter portion of the inlet housing. A second chamber is defined between a downstream side of the piston and the end cap of the outlet housing. An area of an upstream surface of the piston at an angle with respect to the valve axis is in fluid communication with the first chamber, and is substantially equal to an area of a downstream surface of the piston at an angle with respect to the valve axis and in fluid communication with the second chamber.

Abstract: A port shield for a pneumatic actuator with a casing wall includes a sheet and a connecting member. The sheet includes an outer face disposed opposite an inner face, a first end disposed opposite a second end, and a first edge disposed opposite a second edge. The sheet also includes a bend formed in the sheet between the first edge and the second edge, wherein the bend extends from the first end to the second end and forms an apex on the outer face of the sheet. The connecting member extends from the sheet and is configured to connect the sheet to an outer side of the casing wall of the pneumatic actuator.

Abstract: A valve assembly includes a sleeve with an inlet and an outlet. A spool is slideably disposed within an interior of the sleeve and is movable along a spool movement axis defined by the sleeve between first and second positions such a flow area between the inlet and outlet is greater when the spool is in the second position than when the spool is in the first position. An aperture plate seats within the sleeve inlet and is axially adjacent to the spool. The aperture plate defines a core flow and a flow-directing aperture to center and straighten a fluid flow entering the sleeve inlet.

Abstract: A flexure for a metering valve has a flexure body defining a center axis to be aligned with a fuel nozzle. The flexure body includes an outermost peripheral surface surrounding the center axis. A retaining feature is formed in the flexure body and is configured to mount the flexure body to a metering valve component. The retaining feature is located radially between the center axis and the outmost peripheral surface. A metering valve is also disclosed.

Abstract: In one aspect, a fluid flow disruptor is provided. The fluid flow disruptor includes a base flange having an outer diameter and an inner diameter, the base flange configured to couple to a valve, and a cap extending from the base flange. The cap includes a proximal end coupled to the base flange about the inner diameter, a distal end, and a sidewall extending between the proximal end and the distal end. At least one aperture is formed in the sidewall, and the fluid flow disruptor is configured to direct a fluid flowing in an axial direction to flow around the cap distal end, through the at least one aperture, and through the base flange inner diameter into the valve, to thereby increase a turbulence of the fluid to decrease an axial momentum load of the fluid acting on the valve.

Abstract: A valve has a sleeve with at least one outlet port in a radially outer surface. A piston is moveable within the sleeve along an axis. The piston has a lip on a radially outer portion extending forwardly to an axially forward most end and a recess radially inward from the lip with respect to an axis of the piston. A vane pump is also disclosed.

Abstract: A sensor assembly includes a first structure and a second structure disposed radially outwardly of the first structure. Also included is a sensor body extending through the first and second structures, the sensor body having first and second ends, the second end disposed in an ambient environment. Further included is a sensor mounted to the sensor body proximate the second end, the sensor configured to detect a characteristic of a target disposed within the first structure. Yet further included is a first sealing assembly configured to operatively couple the sensor body to the second structure and to accommodate movement of the sensor body. The first sealing assembly includes a mounting body, a radial seal, a slider plate and a slider plate retainer disposed in a recess of the mounting body and in abutment with the slider plate.

Abstract: A measuring system for sensing vane positions that comprises a turbine, a target, and a sensor. The turbine includes a plurality of articulating vanes, with each vane being coupled to a sync ring that is configured to position the plurality of articulating vanes in accordance with a degree of rotation by the sync ring. The target is coupled to a first position of the turbine within a first region that is associated with a first vane of the plurality of articulating vanes. The sensor is coupled via a bracket to a second position of the turbine within the first region. The sensor is configured to detect an orientation of the target that corresponds to a vane position of the first vane.

Abstract: A sensor assembly includes a first structure and a second structure disposed radially outwardly of the first structure. Also included is a sensor body extending through the first and second structures, the sensor body having first and second ends, the second end located radially outwardly of the second structure. Further included is a first sealing assembly configured to couple the sensor body to the second structure and to accommodate movement of the sensor body due to relative movement between the first and second structures. Yet further included is an interior cavity of the sensor body, a linear position sensor operatively coupled to the sensor body, and a rotary linkage assembly located within the interior cavity and coupled to a target. Also included is a rotary-to-linear interface disposed between the rotary linkage assembly and the sensor and configured to convert rotational motion of the rotary linkage assembly to linear motion.

Abstract: A sensor assembly includes a first structure and a second structure disposed radially outwardly of the first structure. Also included is a sensor body extending through the first and second structures, the sensor body having first and second ends, the first end disposed proximate a first environment and the second end located radially outwardly of the second structure. Further included is a first sealing assembly configured to operatively couple the sensor body to the second structure and to accommodate movement of the sensor body. Yet further included is a position sensor operatively coupled to the sensor body, the position sensor configured to determine a position of a target. Also included is a target surface having a reference portion and an inclined portion located adjacent the reference portion, wherein the position sensor is configured to detect the position of the target based on a distance differential.