A brake assembly may comprise a brake stack including a plurality of rotors and a plurality of stators. A piston assembly may be configured to apply a force to the brake stack. A brake control valve may be mounted to the piston assembly and fluidly coupled to a fluid inlet of the piston assembly.

An aircraft landing gear arrangement (1, 101) on an aircraft, the arrangement including a wheel (2, 22), a brake (6) operable to inhibit rotation of the wheel, one or more fan blades (7a, 7b) rotatable to cool the brake, and a brushless DC motor (8) operable to rotate the one or more fan blades.

An aircraft landing gear arrangement (1, 101) on an aircraft, the arrangement including a wheel (2, 22), a brake (6) operable to inhibit rotation of the wheel, one or more fan blades (7a, 7b) rotatable to cool the brake, and a brushless DC motor (8) operable to rotate the one or more fan blades.

An aircraft hydraulic braking system having at least one hydraulic accumulator and a brake actuator. The at least one hydraulic accumulator is the sole source of pressurised hydraulic fluid in the aircraft hydraulic braking system for operating the brake actuator and thereby apply a braking force to a wheel on an aircraft.

An aircraft hydraulic braking system having at least one hydraulic accumulator and a brake actuator. The at least one hydraulic accumulator is the sole source of pressurised hydraulic fluid in the aircraft hydraulic braking system for operating the brake actuator and thereby apply a braking force to a wheel on an aircraft.

A piece of electrical equipment for connecting both to at least one electromechanical braking actuator and also to at least one electromechanical drive actuator, the piece of electrical equipment (13a) comprising a housing (30), means for fastening the housing to the undercarriage, and inside the housing: a processor unit (32) arranged to generate a braking motor control signal and a drive motor control signal; a power supply unit (37) arranged to generate an equipment power supply voltage, a braking power supply voltage, and a drive power supply voltage; a power converter unit (40) arranged to generate a braking control voltage and a drive control voltage; and a distribution unit arranged to distribute the braking control voltage to the electromechanical braking actuator and the drive control voltage to the electromechanical drive actuator.

A piece of electrical equipment for connecting both to at least one electromechanical braking actuator and also to at least one electromechanical drive actuator, the piece of electrical equipment (13a) comprising a housing (30), means for fastening the housing to the undercarriage, and inside the housing: a processor unit (32) arranged to generate a braking motor control signal and a drive motor control signal; a power supply unit (37) arranged to generate an equipment power supply voltage, a braking power supply voltage, and a drive power supply voltage; a power converter unit (40) arranged to generate a braking control voltage and a drive control voltage; and a distribution unit arranged to distribute the braking control voltage to the electromechanical braking actuator and the drive control voltage to the electromechanical drive actuator.

A torque bar assembly for use in an aircraft wheel is disclosed. In various embodiments, the assembly includes a torque bar; and a spacer configured for positioning between the torque bar and a wheel well of the aircraft wheel and to thermally insulate the wheel well from the torque bar, wherein the spacer includes a first anodized metal oxide layer on a first surface of the spacer configured to contact the torque bar. In various embodiments, the spacer includes a second anodized metal oxide layer on a second surface of the spacer configured to contact the wheel well.

A valve assembly may comprise: a housing defining an inlet port, an outlet port, a solenoid valve inlet port, and a solenoid valve outlet port, the inlet port in fluid communication with the solenoid valve inlet port; a shutoff valve disposed in the housing, the shutoff valve including a shutoff valve inlet port in fluid communication with the inlet port and a shutoff valve outlet port in fluid communication with the outlet port, and a second shutoff valve inlet port in fluid communication with the solenoid valve outlet port; a filter disposed downstream of the valve inlet port; and a check valve disposed between the shutoff valve outlet port and the outlet port of the housing.

A valve assembly may comprise: a housing defining an inlet port, an outlet port, a solenoid valve inlet port, and a solenoid valve outlet port, the inlet port in fluid communication with the solenoid valve inlet port; a shutoff valve disposed in the housing, the shutoff valve including a shutoff valve inlet port in fluid communication with the inlet port and a shutoff valve outlet port in fluid communication with the outlet port, and a second shutoff valve inlet port in fluid communication with the solenoid valve outlet port; a filter disposed downstream of the valve inlet port; and a check valve disposed between the shutoff valve outlet port and the outlet port of the housing.