Roller shutter device for regulating the air flow entering into the engine compartment of a motor vehicle
A roller shutter device is mounted in front of a radiator of a motor vehicle for regulating air flow entering into the engine compartment and traversing the radiator. The shutter is wound on a transverse roller which is received in an additional space defined in front of the radiator by a reinforcement crosspiece of the body having a substantially C-shaped outwardly projecting cross-section, which divides the front opening of the body into at least one lower opening and into at least one upper opening. The roller shutter is provided in one of said upper and lower openings; while an auxiliary shutter device which can be of the tilting louver type or even of the roller shutter type is associated to the other opening.
1. Motor vehicle, comprising a body with a front opening for the entry of an air flow into the engine compartment of the motor vehicle during the motion of the motor vehicle, at least one radiator forming part of the engine cooling system, arranged adjacent to said front opening, and at least one roller shutter device for regulating the air flow through such opening,
wherein said vehicle further comprises a reinforcement crosspiece joined to the body and having a substantially C-shaped outwardly projecting cross-section bounding a cavity located in front of the radiator,
wherein the roller shutter device comprises a shutter windable on a transverse horizontal roller rotatably mounted within said cavity at the rear of the reinforcement crosspiece,
wherein said front opening is divided into at least one lower opening and into at least one upper opening separated by said reinforcement crosspiece, and in that in an unwound condition thereof the roller shutter device closes one of said upper and lower openings, while an auxiliary shutter device is associated to the other opening,
wherein the roller shutter device and the auxiliary shutter device are borne by an auxiliary structure connected to a front part of the radiator, said auxiliary structure directly contacting and being connected to said front part of said radiator and avoiding contact with a remainder of the vehicle;
wherein said auxiliary structure comprises two lateral walls joined by an upper crosspiece and by a lower crosspiece, said lateral walls having intermediate portions for rotatably supporting the roller of the roller shutter device, said intermediate portions being joined by an intermediate crosspiece, said lateral walls further being provided with guide means for the sides of the roller shutter.
2. Motor vehicle according to claim 1 , wherein said auxiliary shutter is a louver shutter with tilting louvers.
3. Motor vehicle according to claim 1 , wherein said auxiliary shutter is a roller shutter device.
4. Motor vehicle according to claim 3 , wherein the two roller shutters have a common winding roller.
5. Motor vehicle according to claim 1 , wherein the roller shutter and the auxiliary shutter device are made of an acoustically insulating material.
6. Motor vehicle according to claim 2 , wherein the roller shutter and the auxiliary shutter device are made of an acoustically insulating material.
7. Motor vehicle according to claim 3 , wherein the roller shutter and the auxiliary shutter device are made of an acoustically insulating material.
8. Motor vehicle according to claim 4 , wherein the roller shutter and the auxiliary shutter device are made of an acoustically insulating material.