In accordance with at least one aspect of this disclosure, an emergency power unit system for an aircraft includes a fuel cell system (102) configured to generate power using a fuel and an oxidant, and an oxidant supply system (108) fluidly connected to th...

A hydrogen fueled power system (10) of a vehicle includes a liquid hydrogen fuel source (14) having a volume of liquid hydrogen fuel and a thermal engine (20) configured to expand the liquid hydrogen fuel into gaseous form via interaction between a heated ...

There is provided a construction machine including an electrically driven motor that serves as a power source, a heat exchanger, a fuel cell that generates power to be provided to the electrically driven motor, a cooling fan that blows cooling air to the h...

A power net apparatus for a fuel cell includes a fuel cell configured to supply power to an inverter of a vehicle, a supercapacitor configured to assist the fuel cell, a bidirectional converter configured to charge and discharge the fuel cell and the super...

A vehicle fuel cell system assembly (1) comprising - a first fuel cell system (100) comprising a first sensor (110) and a first control unit (120) adapted to control the first fuel cell system (100) based on a value of the first sensor (110), - a second fu...

A power system includes a liquid hydrogen fuel source including a fuel tank (14) containing a volume of hydrogen fuel (12). The fuel tank includes two or more vacuum insulation layers (52), and a liquid insulation material (54) positioned between the two o...

The invention relates to a propulsion assembly (151) for an aircraft comprising a T-shaped frame (156) with a horizontal structure (156a) and a vertical structure (156b), a gearbox (155) fixed to the front of the frame (156) and a propulsion system (150) c...

The invention relates to an air management system (10) and a method for controlling an intake air pressure and an exhaust back pressure of a fuel cell system (1). It further relates to an arrangement comprising a fuel cell system and such an air management...

A fuel cell stack (20) has a first end plate (44), a second end plate (46), and an internal current collecting plate (48). A first load (24) is connected to the first end plate (44) and the second end plate (46). A second load (26) is connected to the firs...