Abstract: A thrust bearing arrangement includes a top plate extending about a rotation axis, a thrust plate extending about the rotation axis and axially offset from the top foil plate, and a bump plate. The thrust plate is orthogonal relative to the rotation axis. The bump foil plate extends about the rotation axis, is axially offset from the thrust plate, and has an annular portion and two or more bump plate foil portions. The annular portion of the bump plate is circumferentially interrupted by the bump plate foil portions of the bump plate. Rotating machines and methods of making thrust bearing arrangements for rotating machines are also described.

Abstract: A thrust bearing arrangement includes a top plate extending about a rotation axis, a thrust plate extending about the rotation axis and axially offset from the top foil plate, and a bump plate. The thrust plate is orthogonal relative to the rotation axis. The bump foil plate extends about the rotation axis, is axially offset from the thrust plate, and has an annular portion and two or more bump plate foil portions. The annular portion of the bump plate is circumferentially interrupted by the bump plate foil portions of the bump plate. Rotating machines and methods of making thrust bearing arrangements for rotating machines are also described.

Abstract: An example embodiment of an air bearing assembly includes a first member and a shaft with a flange configured to rotate with respect to the first member. The first member has a first coating on at least one first surface facing at least one second surface on the flange or the shaft. The first coating includes tungsten carbide, a nonpolymeric self-lubricating coating, or a combination thereof. At least one of the second surfaces has a second coating on a surface facing the first coating.

Abstract: An example embodiment of an air bearing assembly includes at least a first member and a shaft with a flange configured to rotate with respect to the first member. The first member has a coating on at least one surface facing at least one of the shaft and the flange. The coating includes tungsten carbide, a nonpolymeric self-lubricating coating, or a combination thereof.

Abstract: An example embodiment of an air bearing assembly includes a first member and a shaft with a flange configured to rotate with respect to the first member. The first member has a first coating on at least one first surface facing at least one second surface on the flange or the shaft. The first coating includes tungsten carbide, a nonpolymeric self-lubricating coating, or a combination thereof. At least one of the second surfaces has a second coating on a surface facing the first coating.

Abstract: An air bearing according to an example of the present disclosure includes a stationary member and a shaft with a flange configured to rotate with respect to the stationary member, and at least one of the flange and the shaft have a tungsten-carbide-based coating. An alternative air bearing and a method of making an air bearing are also disclosed.

Abstract: A method includes receiving a sampled input, the sampled input being a result of a detection device sensing a plurality of environmental conditions by an air cycle machine; processing the sampled input to detect whether the plurality of environmental conditions includes a deviation from an expected operation of the air cycle machine; and generating a notification output in response to the plurality of environmental conditions including the deviation from the expected operation of the air cycle machine.

Abstract: A method includes receiving, by a first wireless device integrated into a management facility from a second wireless device integrated into a detection device, environmental conditions produced by a structure and detected by the detection device attached to the structure; and processing, by the management facility, the environmental conditions to detect a deviation from an expected operation of the structure.

Abstract: A fan housing of a ram air fan assembly is provided including a flange having at least one tab. The at least one tab includes a first portion extending generally perpendicularly from the flange and a second portion extending generally parallel to the flange. A notch is formed by an inclined surface and a curved surface at an intersection between the first portion and the second portion. The second portion is elongated and extends about 0.020 inches beyond a front surface of the first portion.

Abstract: A ram air fan assembly includes a motor/bearing housing that extends along a horizontal length of the ram air fan assembly. An inner housing assembly is in fluid communication with the motor/bearing housing to define a joint. The inner housing assembly includes first and second ellipse-shaped slots. The first slot is positioned at a first angle with respect to a radial axis of the inner housing assembly that is perpendicular to the horizontal length, and the second slot is positioned at a second angle with respect to the radial axis, the second angle being different from the first angle, and each slot extending along a first direction parallel to the horizontal length to define an axial width and extending along a radial axis to define a radial width being greater than the axial width.

Abstract: A transfer tube including a tube member extends from a first end to a second end through an intermediate portion having an outer surface and an inner surface. The outer surface has an outside diameter. A flange is mounted at one of the first and second ends of the tube member. The flange includes a flange body extending from a first end portion to a second end portion through an intermediate section having an outer surface and an inner surface. The inner surface defines an inside diameter. The outside diameter of the tube member is between about 0.010-inch (0.0254-cm) and about 0.030-inch (0.0762-cm) smaller than the inside diameter of the flange.

Abstract: A cooling tube includes a tube member extending from a first end to a second end through an intermediate portion having an outer surface and an inner surface. The outer surface has an outside diameter. A flange is mounted at one of the first and second ends of the tube member. The flange includes a flange body extending from a first end portion to a second end portion through an intermediate section having an outer surface and an inner surface. The inner surface defines an inside diameter. The outside diameter of the tube member is between about 0.010-inch (0.0254-cm) and about 0.030-inch (0.0762-cm) smaller than the inside diameter of the flange.

Abstract: A method includes receiving a sampled input, the sampled input being a result of a detection device sensing a plurality of environmental conditions by an air cycle machine; processing the sampled input to detect whether the plurality of environmental conditions includes a deviation from an expected operation of the air cycle machine; and generating a notification output in response to the plurality of environmental conditions including the deviation from the expected operation of the air cycle machine.

Abstract: A method includes receiving, by a first wireless device integrated into a management facility from a second wireless device integrated into a detection device, environmental conditions produced by a structure and detected by the detection device attached to the structure; and processing, by the management facility, the environmental conditions to detect a deviation from an expected operation of the structure.

Abstract: A fan housing of a ram air fan assembly is provided including a flange having at least one tab. The at least one tab includes a first portion extending generally perpendicularly from the flange and a second portion extending generally parallel to the flange. A notch is formed by an inclined surface and a curved surface at an intersection between the first portion and the second portion. The second portion is elongated and extends about 0.020 inches beyond a front surface of the first portion.

Abstract: A cooling tube includes a tube member extending from a first end to a second end through an intermediate portion having an outer surface and an inner surface. The outer surface has an outside diameter. A flange is mounted at one of the first and second ends of the tube member. The flange includes a flange body extending from a first end portion to a second end portion through an intermediate section having an outer surface and an inner surface. The inner surface defines an inside diameter. The outside diameter of the tube member is between about 0.010-inch (0.0254-cm) and about 0.030-inch (0.0762-cm) smaller than the inside diameter of the flange.

Abstract: A transfer tube including a tube member extends from a first end to a second end through an intermediate portion having an outer surface and an inner surface. The outer surface has an outside diameter. A flange is mounted at one of the first and second ends of the tube member. The flange includes a flange body extending from a first end portion to a second end portion through an intermediate section having an outer surface and an inner surface. The inner surface defines an inside diameter. The outside diameter of the tube member is between about 0.010-inch (0.0254-cm) and about 0.030-inch (0.0762-cm) smaller than the inside diameter of the flange.

Abstract: A bracket has an axial rear wall to be secured to a housing for a ram air fan and a base floor defined between lateral sidewalls. The base floor has a slot extending for an axial length and for a lateral width, with a ratio of the length to the width being between 1.24 and 1.29. A ran air fan, a system and a method are also disclosed.

Abstract: A ram air fan assembly includes a motor/bearing housing that extends along a horizontal length of the ram air fan assembly. An inner housing assembly is in fluid communication with the motor/bearing housing to define a joint. The inner housing assembly includes first and second ellipse-shaped slots. The first slot is positioned at a first angle with respect to a radial axis of the inner housing assembly that is perpendicular to the horizontal length, and the second slot is positioned at a second angle with respect to the radial axis, the second angle being different from the first angle, and each slot extending along a first direction parallel to the horizontal length to define an axial width and extending along a radial axis to define a radial width being greater than the axial width.