Abstract: A device for controlling a hot air flow, for example in an engine compartment of a motor car, includes at least one wing connectable to an air inflow opening of an engine compartment of a motor car and movable between a position for closing and a position for opening the air inflow opening. A drive module is configured to apply a predetermined thrust force and a transmission apparatus is capable of transmitting the thrust force from the drive module to the wing to move the wing from the closed position to the open position and vice versa. The drive module includes at least one actuator made of a shape-memory alloy such that the thrust force is applied when the actuator reaches a predetermined temperature.

Abstract: An adjustment device for controlling the aerodynamic load acting on a motorcar, includes an underbody diffuser.

Abstract: A device for controlling a hot air flow, for example in an engine compartment of a motor car, includes at least one wing connectable to an air inflow opening of an engine compartment of a motor car and movable between a position for closing and a position for opening the air inflow opening; a drive module configured to apply a predetermined thrust force and a transmission apparatus capable of transmitting the thrust force from the drive module to the wing to move the wing from the closed position to the open position and vice versa. The drive module includes at least one actuator made of a shape-memory alloy such that the thrust force is applied when the actuator reaches a predetermined temperature.

Abstract: This invention relates to an adjustment device for controlling the aerodynamic load acting on a motorcar, which acts by means of an underbody diffuser.

Abstract: Wing including an upper surface predominantly concave upwards and a lower surface predominantly convex downwards, which wing is provided with one or more supports to be fixed to a vehicle, in which the lower surface of the wing is provided with one or more slits that connect with the outside one or more first ducts arranged in the wing, which are in turn connected to at least one second duct arranged in at least one support, wherein at least one valve connected to at least one actuator is arranged along the second duct or along a third duct connected to this second duct. A process for controlling the operation of the wing and a motor vehicle includes this wing.

Abstract: Wing including an upper surface predominantly concave upwards and a lower surface predominantly convex downwards, which wing is provided with one or more supports to be fixed to a vehicle, in which the lower surface of the wing is provided with one or more slits that connect with the outside one or more first ducts arranged in the wing, which are in turn connected to at least one second duct arranged in at least one support, wherein at least one valve connected to at least one actuator is arranged along the second duct or along a third duct connected to this second duct. The present invention also relates to a process for controlling the operation of the wing and a motor vehicle comprising this wing.