A cooling system for a fuel cell onboard a vehicle includes a plenum, a coolant circuit, and a liquid-to-air heat exchanger. The plenum is configured to receive an airflow from an ambient environment. The coolant circuit is configured to circulate a coolant through the coolant circuit and through a portion of the fuel cell. The liquid-to-air heat exchanger includes a thermally conductive wall having a first side that at least partially defines an airflow channel in fluid communication with the plenum and an opposite second side that at least partially defines a coolant channel in fluid communication with the coolant circuit. The first side of the thermally conductive wall includes a porous wick. When a working fluid is introduced into the porous wick, the porous wick is configured to evaporatively cool the coolant flowing through the coolant channel by promoting evaporation of the working fluid therefrom.

A cooling system for a fuel cell onboard a vehicle includes a coolant circuit and a thermal energy storage device in fluid communication with the coolant circuit. The coolant circuit defines a coolant passageway and is configured to circulate a coolant through the coolant passageway and through a portion of the fuel cell to absorb heat from the fuel cell. The thermal energy storage device includes a phase change material configured to store thermal energy released from the coolant flowing through the coolant circuit and through the thermal energy storage device in the form of latent heat. The phase change material is configured to dissipate thermal energy stored therein to a circumambient airflow flowing relative to the vehicle when the vehicle is moving.

A cooling system for a fuel cell onboard a vehicle includes a coolant circuit and a thermal energy storage device in fluid communication with the coolant circuit. The coolant circuit defines a coolant passageway and is configured to circulate a coolant through the coolant passageway and through a portion of the fuel cell to absorb heat from the fuel cell. The thermal energy storage device includes a phase change material configured to store thermal energy released from the coolant flowing through the coolant circuit and through the thermal energy storage device in the form of latent heat. The phase change material is configured to dissipate thermal energy stored therein to a circumambient airflow flowing relative to the vehicle when the vehicle is moving.

A propulsion assembly for an aircraft, having a T-shaped chassis with a horizontal structure and a vertical structure, a gearbox fastened to a front of the chassis, and a propulsion system having the following propulsion elements: an electric motor driving the components of the gearbox, a fuel cell, a tank and a cooling system, wherein the propulsion elements are fastened beneath the horizontal structure and against the vertical structure by fastening means.

A propulsion assembly for an aircraft, having a T-shaped chassis with a horizontal structure and a vertical structure, a gearbox fastened to a front of the chassis, and a propulsion system having the following propulsion elements: an electric motor driving the components of the gearbox, a fuel cell, a tank and a cooling system, wherein the propulsion elements are fastened beneath the horizontal structure and against the vertical structure by fastening means.

An electrical system for an aircraft, comprising at least one processor configured to: receive aircraft movement information, detect that the movement information indicates a potential crash, detect a loss of continuity in at least one low voltage wire, and blow a battery pack fuse to disconnect supply of the high voltage power to the aircraft.

Electrically powered vehicles with redundant power distribution circuits employ inverters and a multi-phase alternating current (AC) motor. An electrically powered vehicle includes batteries, inverters, interphase transformers, and a three-phase AC motor. Each of the inverters generates a three-phase AC input from power supplied by an associated one of the batteries. The interphase transformers generate drive phases for the AC motor from the three-phase AC inputs generated by the inverters.

An electrical engine mounting arrangement for providing propulsion power to a vehicle includes a mounting block, an electric motor, a power transfer shaft arranged to rotate in response to the rotation of the electric motor and aligned along a rotation axis. The rotation axis lies on a division plane. One or more first side battery compartments are fixed to the mounting block at the first side of the division plane, and one or more second side battery compartments are fixed to the mounting block at the second side. The batteries housed in the battery compartments supply power to the electric motor.

An airfoil of an aircraft with an ice protection system, the airfoil having a leading edge, the ice protection system comprising a first applying mechanism for applying an ice protection fluid along at least a portion of the leading edge of the airfoil, and an ice protection fluid recovering mechanism for recovering the ice protection fluid applied by the first applying mechanism, the ice protection fluid recovering mechanism being arranged downstream of the leading edge of the airfoil. The ice protection system further comprises a second applying mechanism for applying the ice protection fluid recovered by the ice protection fluid recovering mechanism on at least one area of the airfoil arranged downstream of the leading edge of the airfoil. An aircraft may comprise at least one airfoil provided with the ice protection system. A method may be used to protect the airfoil of an aircraft from ice accumulation.

A lightweight structure for a vehicle or aircraft includes a longitudinal member with a base bridge, having a first collective conductor and a transversal member with a central bridge and transversal bridge with a first connection conductor extending on a first surface of the transversal bridge and on a second surface of the transversal bridge oriented opposite the first surface, and a second connection conductor extending separately from the first connection conductor. The transversal member is connected to the base bridge at the first end section, so the first connection conductor contacts the first collective conductor of the base bridge. The lightweight structure includes a carbon fiber structural battery (CFSB) connected with the central bridge of the transversal member, a first collector of the CFSB electrically connected to the first or second connection conductor and a second collector of the CFSB electrically connected to the other connection conductor.