Abstract: The present invention relates to a ceiling fan (1) with a modular structure, which comprises a central hub (2), from the periphery of which blades (3) extend. Said central hub (2) has top (12) and bottom (13) surfaces arranged on planes parallel to the ceiling. Besides, the ceiling fan (1) further has a driving motor, means (14) for fixing the central hub (2) to the ceiling, control means and electric and/hydraulic connection means connectable to sources of electric and/or hydraulic feed provided on the ceiling. The top (12) and (13) surfaces of the central hub (2) are provided with means (11) for fixing accessory modules. These accessory modules may consist of sources of illumination, sound propagation sound, air heaters, liquid spraying means, environment deodorizing means, air purifiers, among others.

Abstract: A monorail vehicle includes a cabin for housing a driver, passengers and/or load and also includes one or more driving assemblies, the driving assemblies being suitable for running within a guiding duct on the ground, the cabin being connected to at least one driving assembly by an elongated elevation structure. The elongated elevation structure is actuated in order to vary the elevation of the cabin with respect to the ground during regular travel of the vehicle.