Abstract:
A protection system (15) includes an inflatable bag (16) connected to inflation elements able and intended to be activated so as to inflate the inflatable bag in the event of and/or upon the prediction of an impact. The inflatable bag (16) has a substantially annular overall shape when inflated. Such a protection system (15) is advantageously intended to protect the passengers in a helicopter.
Abstract:
A spacecraft (10) includes: a body (20), a surface of revolution (40), rigidly connected to the body, the spacecraft including a heat engine positioned at the centre of the surface of revolution (40), and the surface of revolution includes a first portion (411) forming a solar concentrator for concentrating solar radiation in the direction of the heat engine and a second portion (412), coaxial with the first portion (411), and such that the first portion (411) and the second portion (412) form, relative to each other, a Cassegrain solar concentrator, of which a focal point is located at the heat engine.
Abstract:
A device for the recovery of a proportion of the energy which is dissipated, by the Joule effect, by the equipment of a predetermined satellite in a vacuum atmosphere, includes at least one radiative panel (10) which is designed to permit the cooling of the satellite (20) payload, and a thermoelectric generator, the heat source (12) of which is supplied with infrared photons by the radiative panels (10), whereby the latter are configured to concentrate the infrared photons towards the heat source (12).