摘要:
Apparatus for transmitting the movement to a fan (1) for cooling the cooling fluid in a motor vehicle, comprising a driven shaft (2) on which the fan (1) is mounted idle by means of a support (1a) and a bearing (1b); means (11) for generating the movement, connected to the shaft (2) and coaxial and integral with the driving shaft of the vehicle; characterized in that it comprises a first free-wheel device (100) for transmitting the movement to the driven shaft (2) for operating the fan (1) with a first speed of rotation; a second device (200) for transmitting the movement to the driven shaft (2) for operating the fan (1) with a speed greater than that of the said free-wheel device (100); a control system (300) for engagement/disengagement of the second device (200) for selecting one or other of the two speeds; a clutch (400) with a double armature (431,432) which is arranged between the driven shaft (2) and the fan (1) and controlled engagement/disengagement of which is able to produce rotation of the fan (1) with one of the said different speeds or an idle condition of the fan (1) with respect to the driven shaft (2).
摘要:
Device for transmitting the movement to a fan (1) for cooling the cooling fluid in a motor vehicle, mounted, by means of an idle support (1a,2001a), on an axis parallel to the longitudinal axis (X-X) of the driving shaft (2) of the vehicle, said device comprising movement generating means (2,2a) which are coaxial and integral with the driving shaft (2); means (21a;3a;22a,3b) for transmitting the movement of the driving shaft to a first clutch (30;230;330;430;530;2030;2230); at least one first friction clutch (30;230;330;430;530;2030;2230) with an electromagnetic actuating system, which is arranged on an axis parallel to the longitudinal axis (X-X) of the driving shaft (2) and the rotor (31) of which is connected to said movement transmission means (21a;3a;22a,3b) and the engagement of which produces a rotation of the fan (1) at a number of revolutions at least equal to that of the movement generating means (2,2a).
摘要:
Device for transmission of the movement to a fan (1) for cooling the coolant in a motor vehicle, comprising means (21;141;31a) for supporting the fan (1) on which the fan (1) is mounted by means of an idle support (1a), means (3) for generating the movement, a first electromagnetic clutch (30), engagement of which produces rotation of the fan (1) at a number of revolutions equal to that of the movement generating means (3); also comprising means (50;150;250;350;450) for stopping rotation of the fan (1) in its idle condition.
摘要:
Device for displaceably actuating, in both senses of a longitudinal direction (X-X), a crown wheel (20) comprising means (1120), for example a differential lock, for actuating the crown wheel (20) itself, said actuating means (1120) being of the electromagnetic type.
摘要:
Pump for recirculating a cooling fluid, comprising a device for transmitting the movement from movement generating means (3a,3) to the impeller (1) rigidly connected to a driven shaft (2), where said transmission device comprises at least one first friction coupling (20) and at least one second friction coupling (30) which are substantially concentric with each other and at least one induction coupling (40) situated between said movement generating means (3) and the driven shaft (2); said first friction coupling (20) and second friction coupling (30) are of the electromagnetic type and one of said friction couplings (20,30) comprises a permanent magnet (50) which is integral with said movement generating means (3).
摘要:
Device for transmitting the movement to a fan (1) for cooling the coolant in a motor vehicle, comprising a fixed support shaft (13) and movement generating means (3,21) on which the fan (1) is mounted by means of an idle support (1a); a first electromagnetic clutch (30), the rotor of which is integral with said movement generating means (3, 21) and engagement of which causes rotation of the fan (1) at a number of revolutions equal to that of the movement generating means; a second clutch (60), the rotor (61) of which is mounted on said movement generating means (21) and engagement/disengagement of which causes rotation of the fan at a lower number of revolutions or zero speed compared to that of the movement generating means (3); means (62) of the electromagnetic type for engaging/disengaging the said second clutch; in which said first clutch (30) is supported in a position substantially adjacent to the fixed base (10) of the engine casing and said second clutch (60) is supported by a fixed shaft (13) in a position substantially projecting from the base (10) of the engine, the engaging means (62a,62b) of the second clutch (60) being mounted on the said movement generating means (21).