초록 ▼

An air-distribution system comprises a fluid device that enables deviation of a flow of air that traverses a main duct (6S; 6D) into a first secondary duct (7S, 7C) and a second secondary duct (7C, 7D), exploiting the Coanda effect. The system may be applied in vehicles in general, in particular mot

An air-distribution system comprises a fluid device that enables deviation of a flow of air that traverses a main duct (6S; 6D) into a first secondary duct (7S, 7C) and a second secondary duct (7C, 7D), exploiting the Coanda effect. The system may be applied in vehicles in general, in particular motor vehicles, or for example in residential, commercial and industrial buildings.

대표청구항 ▼

1. An air-distribution system, comprising:at least one inlet duct for a flow of air; a plurality of mouths for outflow of the air into an environment; and an air-distributing device, comprising: an inlet (3), which receives the air-flow from the aforesaid inlet duct; and a plurality of outlets, loca

1. An air-distribution system, comprising:at least one inlet duct for a flow of air; a plurality of mouths for outflow of the air into an environment; and an air-distributing device, comprising: an inlet (3), which receives the air-flow from the aforesaid inlet duct; and a plurality of outlets, located at a distance from said outflow mouths and connected to the latter by respective pipes, characterized in that said air-distributing device further comprises: a passage (6S; 6D) connected to said air-flow inlet duct; and means associated to said passage for deviating the air-flow in one first or one second direction (7S, 7C; 7D) by the Coanda effect, towards respective first and second outlets, wherein said passage is constituted by a main duct (6S; 6D), which has one inlet end and comes out at the opposite end in a first secondary duct (7S, 7C) and a second secondary duct (7C, 7D), which branch off from the main duct according to two distinct directions and lead to said first and second outlets, wherein said deviating means are designed to modify the geometry of the main duct in such a way as to control the direction of the flow by the Coanda effect, and wherein said deviating means comprise: one or more control openings (9) formed in one wall (8) of the main duct, and obturator or perturber means (10) co-operating with said openings and displaceable between an inactive condition and an active condition, so as to control the deviation of the main flow towards said first and second secondary ducts (7C, 7D) by the Coanda effect, without substantially involving any variation in the air-flow rate through the main duct. 2. The air-distribution system according to claim 1, characterized in that said system comprises a plurality of main ducts (6S; 6D) set alongside one another, each coming out into two secondary ducts (7S, 7C; 7C, 7D) and each having a respective control opening (9).3. The air-distribution system according to claim 2, characterized in that the control openings (9) of the various main ducts are aligned with respect to one another, and in that the obturator means (10) of the control openings (9) are in common.4. The air-distribution system according to claim 3, characterized in that the common obturator means (10) of the control openings (9) comprise two or more rotating cylinders (11, 12) having walls (11a, 12a), which have a plurality of openings (13) arranged and shaped in such a way that different possible combinations of opening and closing of the various control openings (9) are obtained in the different positions of the two rotating cylinders (11, 12) with respect to one another.5. The air-distribution system according to claim 4, characterized in that the two rotating cylinders (107) are set one as the prolongation of the other and present facing ends that may be operated selectively by ratchet means (114, 115, 116) controlled by a reversible electric motor (109).6. The air-distribution system according to claim 4, designed to be used in a motor vehicle, comprising a body (1) including a main section (2) which defines a main duct (3) that divides into two auxiliary ducts (5D, 5S), each of which feeds two or more main ducts (6S; 6D) set vertically one above the other, each main duct (6S; 6D) in turn branching into two, secondary ducts (7S, 7C; 7C, 7D) lying in the same plane as the corresponding main duct in such a way as to define two sets of two or more outlet openings set vertically one above another both on the right-hand side and on the left-hand side of the body (1).7. The air-distribution system according to claim 6, characterized in that the concentric rotating cylinders (11, 12) are set with their axes directed vertically substantially at the centre of the body (1) of the device so as to control a plurality of control openings (9), which are set vertically one on top of another on two opposite sides of the assembly formed by the rotating cylinders (11, 12).8. The air-distribution system according to claim 1, characterized in that the deviating present a bistable operation.9. The air-distribution system according to any one of claims 1 to 7, characterized in that the deviating means present a bistable operation.10. The air-distribution system according to claim 1, characterized in that the aforesaid obturator or perturber means are controlled by an actuator of a type chosen from among electromagnetic, hydraulic, pneumatic, and piezoelectric actuators, electrorestrictive polymers, and shape-memory actuators.