Rear aerodynamic device for a vehicle and vehicle equipped with such a device

An aerodynamic device suitable to be located under a rear end of a cargo body of an industrial vehicle, wherein the device comprises a nozzle having an inlet positioned on a lateral external face of the device and capable of canalizing air flowing along the vehicle and an outlet positioned at the rear part of the device and capable of ejecting the air flow underneath a vehicle rear face, wherein it further comprises a ridge extending under the nozzle at the lower part of the device, the ridge extending roughly longitudinally and an external side wall thereof converging inwardly rearward, whereby the ridge is arranged to canalize residual air that did not enter the nozzle, and direct it rearward and inwardly.

An aerodynamic device suitable to be located under a rear end of a cargo body of an industrial vehicle, wherein the device comprises at least one nozzle having an inlet formed in a side wall of the device that is adapted to be arranged substantially flush with a side wall of the cargo body and the nozzle is capable of canalizing air flowing along the vehicle and an outlet positioned at the rear part of the device and capable of ejecting the air flow underneath a vehicle rear face, wherein the device forms a substantially parallelepiped block having a vertical longitudinal plane of symmetry, the at least one nozzle comprising only two nozzles, each nozzle of the two nozzles being located near a side of the block.

An aerodynamic device suitable to be located under a rear end of a cargo body of an industrial vehicle, wherein the device comprises at least one nozzle having an inlet formed in a side wall of the device that is adapted to be arranged substantially flush with a side wall of the cargo body and the nozzle is capable of canalizing air flowing along the vehicle and an outlet positioned at the rear part of the device and capable of ejecting the air flow underneath a vehicle rear face, and a ridge extending under the at least one nozzle at the lower part of the device, the ridge extending roughly longitudinally and an external side wall thereof converging inwardly rearward, whereby the ridge is arranged to canalize residual air that did not enter the at least one nozzle, and direct it rearward and inwardly, wherein the device forms a substantially parallelepiped block having a vertical longitudinal plane of symmetry, the at least one nozzle comprising only two nozzles, each nozzle of the two nozzles being located near a side of the block, and wherein two ridges define a central diverging passageway below the device.

A vehicle comprising a frame supported by wheels and a cargo body, wherein the vehicle comprises an aerodynamic device, the device being located under a rear end of the cargo body, rearward from rear wheels of the wheels, the aerodynamic device comprising at least one nozzle having an inlet formed in a side wall of the device, wherein the side wall is adapted to be arranged substantially flush with a side wall of the cargo body and the nozzle is capable of canalizing air flowing along the vehicle and an outlet at the rear end of the nozzle for ejecting air underneath a vehicle rear face, an inside of the nozzle comprising at least a lower wall, an upper wall, an inner wall, an an outer wall, wherein, in a direction from the inlet to the outlet, the inner wall diverges from the outer wall such that a cross-section of the nozzle at the outlet is greater than the cross-section of the nozzle at the inlet.

A vehicle comprising:

• a body having a longitudinal centerline, a side wall and a rear end;
• and
• an aerodynamic device comprising at least one nozzle disposed at a non-zero distance from a vertical plane through the longitudinal centerline and having an inlet arranged along the side wall of the body for receiving air flowing along the vehicle and an outlet at the rear end for ejecting air underneath a vehicle rear face an inside of the nozzle comprising at least a lower wall, an upper wall, an inner wall, and an outer wall, the inner wall being, relative to the vertical plane, straight or curved toward the vertical plane, in a direction from the inlet to the outlet, wherein from the inlet toward the outlet, the lower wall converges upwardly such that a height between the lower wall and the upper wall decreases and such that an outlet distance between the lower wall and the upper wall at the outlet is less than an inlet distance between the lower wall and the upper wall at the inlet, and the inner wall diverges from the outer wall such that a cross-section of the nozzle increases from the inlet toward the outlet, and the cross-section of the nozzle at the outlet is greater than the cross-section of the nozzle at the inlet.