US 12,145,421 B2
Air treatment system for a closable room, in particular for a cabin, of a vehicle
Francesco Agostini, Moncalieri (IT); and Gualtiero Carboni, Moncalieri (IT)
Assigned to TESIO COOLING SYSTEMS S.P.A., (IT)
Filed by TESIO COOLING SYSTEMS S.P.A., Moncalieri (IT)
Filed on Mar. 14, 2022, as Appl. No. 17/694,289.
Claims priority of application No. 102021000006191 (IT), filed on Mar. 16, 2021.
Prior Publication US 2022/0297500 A1, Sep. 22, 2022
Int. Cl. B60H 1/00 (2006.01); B01D 46/00 (2022.01); B01D 46/42 (2006.01); B01D 46/44 (2006.01); B01D 46/46 (2006.01); B01D 46/56 (2022.01); B60H 3/06 (2006.01)
CPC B60H 1/00378 (2013.01) [B01D 46/0049 (2013.01); B01D 46/4272 (2013.01); B01D 46/444 (2013.01); B01D 46/446 (2013.01); B01D 46/46 (2013.01); B01D 46/56 (2022.01); B60H 1/00028 (2013.01); B60H 1/00849 (2013.01); B60H 3/0641 (2013.01); B01D 2273/30 (2013.01); B01D 2279/40 (2013.01); B01D 2279/50 (2013.01); B60H 2001/00092 (2013.01)] 10 Claims
OG exemplary drawing
 
1. Air treatment system (1, 1′) for a closable room (2) of a vehicle (3), in particular for a cabin of the vehicle itself, said system (1, 1′) comprising:
a box (5) closed outwardly and connectable to said room (2);
an air conditioning device (6) located inside said box (5), provided with at least one fan (7) and connectable to said room (2) by means of at least one supply duct (8) for supplying conditioned and pressurized air to the room (2) itself;
at least a first inlet opening (9) for external air, obtained in said box (5) and connected to said air conditioning device (6);
at least a first filtration device (11) carried by said box (5) and located at or near to said first inlet opening (9) to filter external air before it reaches said air conditioning device (6);
at least one recirculation port (15, 15′) to allow in use recirculation of air present in said room (2) to said air conditioning device (6); and
a valve assembly (16) for controlling at least the inflow of outside air to said air conditioning device (6);
characterized in that said valve assembly (16) comprises at least one first shutter member (30, 30′), in particular a door pivotable about a respective axis, interposed between the first inlet opening (9), the recirculation port (15, 15′) and the air conditioning device (6) and movable between a plurality of operating positions included between a first limit operating position, in which the door completely closes the connection between the first inlet opening (9) and the air conditioning device (6) and allows the connection between the recirculation port (15, 15′) and the air conditioning device (6) itself, and a second limit operating position, in which the door completely closes the connection between the recirculation port (15, 15′) and the air conditioning device (6) and allows the connection between the first inlet opening (9) and the air conditioning device (6) itself;
in that, in the movement between said operating positions interposed between said first and second limit operating positions, said first shutter member (30, 30′) varies by predefined amounts the shares of air coming from said first inlet opening (9) and said recirculation port (15, 15′); and
in that the treatment system further comprises a control unit (32) configured to adjust the operating position of said first shutter member (30, 30′) so as to control the shares of air being drawn from said first inlet opening (9) and from said recirculation port (15, 15′) and to maintain a predetermined value of target overpressure (P0) in said room (2) with respect to the external pressure.