Provided is an electric energy storage apparatus capable of generating an AC output in a low-loss and low-noise manner without using a DC-DC converter or an inverter. The electric energy storage apparatus comprises: an electric energy storage module group ...

Discloses is an electric energy storage system designed to equally utilize a plurality of electric energy storage ba during charging/discharging, and keep fluctuation of an input voltage from a charger or an output voltage to a load, within an arbitrary ra...

A propellant tank (2) for storing a liquid propellant A and supplying vapor produced by evaporation of part of the liquid propellant A to an external location comprises a tank body (21) for storing the liquid propellant A, a mesh member (23) arranged insid...

A liquid propellant tank (2) for storing a liquid propellant A and supplying vapor produced by evaporation of part of the liquid propellant A to an external location comprises a tank body (21) for storing the liquid propellant A, and a plurality of holder ...

The present invention provides a shock absorbing apparatus for an aircraft seat, that attenuates shock to passengers and crews. The apparatus includes; an airbag 11 being expanded in a plate shape in a state of less than maximum expansion; an upper flat pl...

An air intake (10) includes a spike (11) and a cylindrical cowl (26). The spike is composed of a plurality of plates (22) which are arranged axial symmetrically around a central axis thereof, and the cowl includes an inner wall parallel to the central axis...