Abstract: This invention is a device for forming heat exchange elements with corrugated heat exchange surfaces, more particularly inserts, made of a sheet in a formable material, such as metal, between two surfaces, each thus presenting a corrugated profile. This device is of the type comprising at least two plates whose opposing faces present the said corrugated profiles and which are offset from each other so as to define between them a space to take the sheet to be formed (2). The device is distinguished by the fact that the profiles (A and B) are configured in such a way that their displacement in the direction of the thickness of the insert is constant along the corrugations in the space between the profiles. The invention can be used for the production of inserts.

Abstract: A wall for making tanks includes two superimposed plates connected to each other at respective spaced apart connected points distributed on a surface of the plates, at least one of the two plates, between respective connecting zones, bulging outward, so that separation between the two plates increases in every radial direction with distance from each connected point to a maximum separation midway between neighboring connected points. The wall has a quilted appearance.

Abstract: Parallel flat tubes are juxtaposed in a direction perpendicular to their greater axis, spaced from one another, the internal space of the tubes being divided by intercalary strips of a thermally conducting material into parallel first flowing channels as first flowing paths for a first fluid, a second fluid flowing through spaces between adjacent flat tubes.

Abstract: A filter assembly including an integral filter cartridge and storage pouch is disclosed herein. The storage pouch is configured to hermetically surround the filter cartridge upon removal of the cartridge from an opening of a liquid drainage conduit of the assembly. The drainage conduit can include a shutter for closing the opening of the drainage conduit upon removal of the filter cartridge.

Abstract: The separator is of a type comprising at least one inclined deflecting surface mounted within a fluid flowing path so that water droplets contained in the flow of fluid are separated from the fluid when the fluid is deflected by the deflecting surface. The deflecting surfaces comprise collecting recesses for water that has been separated, which recesses are connected to an under-pressure space in which is maintained an under-pressure with respect to the pressure prevailing in the fluid flowing path.

Abstract: An annular heat exchanger for incompatible fluids, such as reactive compounds, particularly for the aeronautics industry, in which a sealed bottle is fixed interior of a hollow body, with integral heat dissipators and novel fluid passageway orientation, whereby no leak can occur which would commingle the incompatible fluids.