Abstract:
PROBLEM TO BE SOLVED: To provide a reconfigurable matrix-based power distribution architecture.SOLUTION: A power management and distribution (PMAD) system includes a first power supply of a first type, a second power supply of a second type different from the first type, and first and second loads. The PMAD system includes a matrix of solid state power controllers (SSPCs) connected between the first and second power supplies and the first and second loads. The matrix is configured to selectively supply each of the first and second loads with a plurality of different power levels on the basis of on/off states of the SSPCs of the matrix.
Abstract:
Disclosed is a linear actuator (10) including a housing (16) and a rotating element (14) located in the housing (16). A nonrotating element (12) is located in the housing (16) in operable communication with the rotating element (14). A bellows seal (40) is secured to the housing (16) and the nonrotating element (12) to react a torque applied to the rotating element (14) and allow linear translation of the nonrotating element (12) along an axis of rotation (24) of the rotating element (14). A method of operating a linear actuator (10) includes applying a torque to a rotating component (14) of the linear actuator (10) located in a housing (16) at an axis of rotation (24), and operably connected to a non-rotating component (12). The rotating component (14) is rotated about the axis of rotation (24) as a result of the torque application and the torque is reacted through a bellows seal (40) secured to the nonrotating component (12) and the housing (16). The nonrotating component (12) is translated linearly along the axis of rotation (24).
Abstract:
A lubrication system for a spline interface (20) includes at least one debris chamber (46) located radially outboard of the spline interface (20) of a first rotating component (16) and a second rotating component (18). Wear debris (44) is urged from the spline interface (20) toward the at least one debris chamber (46) by rotation of the first and second rotating components (16, 18) about a central axis (14). At least one lubricant reservoir (36) contains a volume of lubricant (40), wherein at least a portion of the volume of lubricant (40) flows toward the spline interface (20) in response to the wear debris (44) being urged from the spline interface (20) toward the at least one debris chamber (46).
Abstract:
PROBLEM TO BE SOLVED: To provide an environmental control system and a speed sensor module in the system.SOLUTION: An environmental control system includes an air cycle machine 100 for conditioning an interior space with cooling air, a speed sensor module 105 having a speed sensor 135, and a diffuser assembly 110 having a cylindrical assembly 165. The machine 100 includes a fan 115 coupled to a shaft that rotates about a shaft axis, the fan being located at a distal end of the air cycle machine. A speed sensor senses a rotational speed of the shaft. A module 105 includes an outer portion having a first bore, an intermediate portion having a second bore, and an inner portion. A cylindrical assembly ducts a first portion of the cooling air to an inlet side of the fan and communicates a second portion of the cooling air directly to a discharge side of the fan without passing the inlet side.
Abstract:
PROBLEM TO BE SOLVED: To configure an aircraft air conditioning system so as to reduce the energy required for an aircraft.SOLUTION: The aircraft air conditioning system 10 includes: a first compressed air supply source 12 including a compressor 14, a motor 16 and a turbine 18; and a second compressed air supply source. The compressor 14 receives outside air 15, compresses the outside air 15 and feed the compressed outside air to an aircraft cabin 20. In a first operation mode, if an available power in the aircraft is lower than a threshold, the air to be supplied to the aircraft cabin 20 is provided only from the first compressed air supply source 12. In a second operation mode, if an available power in the aircraft is higher than the threshold, the air to be supplied to the aircraft cabin 20 is provided from both of the first compressed air supply source 12 and the second compressed air supply source 22.