Patched Conics, Llc.

Ihi Aerospace Co., Ltd.

Junichiro Kawaguchi

Kengo Yamamoto

An emergency deorbit device provided in a satellite flying on an orbit around the earth includes a propulsion module generating thrust for separating the satellite from the orbit, a reception unit receiving a repeat signal repeatedly sent at an interval from an sending unit of a satellite bus in the satellite, a detection unit outputting a detection signal when the reception unit does not receive the repeat signal in a set time period or when the reception unit receives a deorbit command from the sending unit or from an outside of the satellite, an activation device performing, in response to the detection signal, processing for activating the propulsion module, and a power supply device provided separately from a power supply device of the satellite bus and supplying electric power to the reception unit, the detection unit, and the activation device.

Emergency deorbit device and emergency deorbit method

A heat exchanger generally employs a method for supplying liquid having critical pressure or higher or high pressure in order to suppress boiling. However, gas obtained by a evaporator behind the heat exchanger has relatively low pressure, and therefore supplying the liquid to the heat exchanger requires a system for converting an energy form of the obtained gas into kinetic energy or electrical energy, and increasing the pressure by a mechanical pump. Thus, the complicated system involving an efficiency loss is only solution, and it is difficult to achieve simplification of a system or reduction in the weight of a propellant supply device in a moving body, specifically, a flying object.

Device, system, and method for pressurizing and supplying fluid

It is a problem to be solved to provide Electric power control systems and methods which do not require one-to-one communications in both directions, in which the communications traffic does not rapidly increase even if the number of electric power consumption elements increases and which have good expandability. In addition, it is also a problem to be solved to provide information transfer capability control systems and methods which can be worked by the similar principles. In over to solve the problems, information representing an indication value for adjusting total consumed electric power which is a function of the difference between a current value and a reference value of the total consumed electric power in the group is transmitted by broadcast. Respective electric power consumed elements included in the group receive the information, and calculate, independently and in parallel, their own update values for consumed electric power by an operation using their own degrees of priorities and the indication value for adjusting total consumed electric power, and control their own consumed electric powers based on this. Information transfer capabilities can be controlled by the similar principle.

Growing community of inventors

Uenohara, Japan

Junichiro Kawaguchi