Abstract: A rotary seal arrangement for use with a central tire inflation system is provided. The rotary seal arrangement comprises a stationary portion, a rotating portion, a first sealing ring, a second sealing ring, and a first bushing portion. The stationary portion defines a first air passage therethrough and the rotating portion defines a second air passage therethrough. The first sealing ring and the second sealing ring are each disposed on one of the rotating portion and the stationary portion. The first bushing is disposed on one of the rotating portion and the stationary portion. The first bushing is in dynamic sealing engagement with the first sealing ring. The stationary portion, the rotating portion, the first sealing ring, and the second sealing ring form a sealed cavity that facilitates fluid communication between the first air passage and the second air passage.

Abstract: A hydrostatic driveline and method of operating a hydrostatic driveline is provided. The hydrostatic driveline comprises a power source, hydrostatic pump, a hydrostatic motor, a direct drive link, a first transmission portion, and a second transmission portion. The direct drive link is in driving engagement with at least one of the power source and the hydrostatic pump. The first transmission portion is in driving engagement with a vehicle output and the hydrostatic motor. The second transmission portion is in driving engagement with the direct drive link and at least one of the vehicle output and the first transmission portion. The hydrostatic pump, the hydrostatic motor, and the first transmission portion form a first power path for the hydrostatic driveline and the direct drive link and the second transmission portion form a second power path for the hydrostatic driveline.

Abstract: A method of drivingly engaging a first motor of a dual motor drive unit with an output shaft driven by a second motor of the dual motor drive unit includes actuating a clutching device for drivingly engaging the first motor with the output shaft. Next, a rotational speed of the first motor is synchronized with a rotational speed of the output shaft. When the rotational speed of the first motor and the rotational speed of the output shaft are synchronized, an output torque of the first motor is reduced. When the clutching device drivingly engages the first motor with the output shaft, the output torque of the first motor is increased. The invention further relates to a dual motor drive unit for carrying out the method.

Abstract: A hydrostatic driveline is provided. The hydrostatic driveline comprises a power source, a hydrostatic pump, a hydrostatic motor, a direct drive link, and a transmission portion. The power source is drivingly engaged with an input member. The hydrostatic pump is in driving engagement with the input member. The hydrostatic motor is in fluid communication with the hydrostatic pump. The direct drive link is in driving engagement with the input member. The transmission portion is in driving engagement with a vehicle output and at least one of the hydrostatic motor and the direct drive link The transmission portion includes at least one engagement device and a drive ratio. The hydrostatic pump, the hydrostatic motor, and the transmission portion form a first power path for the hydrostatic driveline and the direct drive link forms a second power path for the hydrostatic driveline.

Abstract: A spindle assembly for a tire inflation system having a spindle defining an axial direction and a fluid conduit. A rotatable part is rotatably mounted on the spindle and has a fluid passage. The fluid passage is configured to be in fluid communication with a pneumatic tire. A dynamic annular seal chamber is also provided. The annular seal chamber is disposed radially between the spindle and the rotatable part. The fluid conduit and the fluid passage are in fluid communication with each other through the annular seal chamber. The annular seal chamber is disposed axially between a first volume and a second volume. The first volume and the second volume are in fluid communication with each other through at least one fluid channel for leading fluid leaked out of the annular seal chamber and leaked into the first volume and/or into the second volume through the fluid channel.

Abstract: Transmission group for vehicles comprising an engine provided with at least one engaging device, arranged between transmission gears and mobile between a first rest position, wherein the transmission gears are mutually integral and both in mesh with a transmission shaft, and a second working position wherein the first gear is in mesh with the transmission shaft and the second gear is unconstrained both with respect to the transmission shaft and with respect to the gear, provided for being means for actuating of the engage device, wherein the engine, the output gear and an output shaft are integrated in a first module fixed to the vehicle and that the transmission shaft, the transmission gears, the engage device and the actuating means thereof are integrated in a second module independent and demountable with respect to the first module.

Abstract: A drive assembly having an actuating piston for generating a thrust for engagement of a clutch unit. The assembly also has a bearing for transferring the engagement thrust and a pusher for discharging the engagement thrust onto the clutch unit. The actuating piston, the bearing and the pusher are assembled in succession on a transmission shaft carrying the clutch unit. A chamber is provided for supplying a fluid under pressure for generating a disengagement thrust acting on the actuating piston. At least one preloaded spring is provided that acts on the actuating piston so as to push it towards the clutch unit. The bearing for transferring the thrust is mounted with play directly on the transmission shaft. The pusher being disk-shaped and comprising a first face in lateral contact with the bearing and a second face in lateral contact with the clutch unit.

Abstract: A vehicle comprises a chassis, a pair of driving wheels, a pair of idle wheels, at least one steering group, and a differential. The steering group is capable of positioning one of the pairs of wheels in a steering geometry where an axis of each of the wheels of the pair of wheels capable of being positioned by the steering group intersects with the remaining axis within a ground-support quadrilateral formed by the pairs of wheels. The differential comprises an outer case, an inner case, a selective engagement, a selective blocking means, and a selective direct gearing means. When the inner case is coupled to the outer case a first half-shaft and a second half-shaft are driven similarly and when the inner case is coupled to the chassis and one of the half-shafts is drivingly engaged with a crown gear the first half-shaft and the second half-shaft are driven opposingly.

Abstract: Transmission group for vehicles comprising an engine provided with at least one engaging device, arranged between transmission gears and mobile between a first rest position, wherein the transmission gears are mutually integral and both in mesh with a transmission shaft, and a second working position wherein the first gear is in mesh with the transmission shaft and the second gear is unconstrained both with respect to the transmission shaft and with respect to the gear, provided for being means for actuating of the engage device, wherein the engine, the output gear and an output shaft are integrated in a first module fixed to the vehicle and that the transmission shaft, the transmission gears, the engage device and the actuating means thereof are integrated in a second module independent and demountable with respect to the first module.

Abstract: A steering group (10) of the wheels of an axle of a vehicle (30) comprising two structural extensions (11, 11?) respectively connected at one end to a wheel-holder group (13, 13?) and at another end to a central portion (12) of the axle integral with or oscillating with respect to the vehicle (30), the wheel-holder groups (13, 13?) being respectively rotatingly connected to the two structural extensions (11, 11?) around a first pin (14, 14?) and the steering mechanism (10) comprising steering means (100, 100?) of the wheel-holder groups (13, 13?), wherein the steering means (100, 100?) comprise two telescopic units (15, 17, 15?, 17?) each equipped with a first sleeve element (15, 15?) and a first rod element (17, 17?) which slides inside the first sleeve element (15, 15?), the telescopic units (15, 17, 15?, 17?) being interposed between the wheel-holder groups (13, 13?) and the central portion (12) of the axle and being suitable for modifying the angular position of the wheel-holder groups (13, 13?) with resp

Abstract: An improved vehicle (30) equipped with a chassis, a pair of driving wheels, a pair of idle wheels and a control group (10) of the movement of the pair of driving wheels, wherein the group (10) comprises a differential group equipped with an outer box (20), which can be activated in rotation by a crown (15), and an inner box (19) in which a first and second end of two half-shafts (11, 12) converge, respectively rigidly connected to two primary toothed gears (13, 14) connected to each other by means of two secondary toothed gears (16, 17) rotatingly assembled on a pin (18) of the inner box (19) substantially orthogonal to the half-shafts (11, 12), the group (10) also comprising selective engagement means (21) of the inner box (19) with the outer box (20), selective blocking means (24, 25, 26) of the inner box (19) with respect to the chassis, and selective direct gearing means (22, 23, 27, 28) of the movement coming from the crown (15) to one of the two half-shafts (11, 12), wherein when the inner box (19) is i

Abstract: An engine half-trolley (10) of simplified structure for industrial vehicles set at the side of a vehicle chassis and comprising a casing (12) from which there comes out at least one wheel hub (13) for a respective wheel (14), an input shaft (17) to said half-trolley (10) being connected to a differential (16) of the vehicle, in the said half-trolley, between the input shaft (17) and the wheel hub (13), there being provided, in succession, two bevel-gear pairs (18, 19; 21, 23) housed in an arm (15, 115) forming part of the casing (12), in which at least one bottom area of the arm (15, 115), for attachment to the wheel hub (13), has ample bevels (26).

Abstract: A device for measurement and control of the conditions of stability of a vehicle, in particular an industrial vehicle, comprising at least one load cell (10), which is integrated inside the lower pin of each articulated joint or steering “pivot” (11) of each steering axle (12) of the vehicle, at the level of the wheel hubs (18), so that a structural component of the front and rear steering axle of a four wheel vehicle is a measurement instrument; an electronic control instrument (14), by means of appropriate control software, processes signals (P1-P4), appropriately amplified, transmitted by each load cell (10), so as to calculate the stability of the vehicle in real time and, furthermore, provide a command to disable certain vehicle functions, in the event that the stability values are beyond a certain pre-established safety range.

Abstract: An electronic device for selecting and controlling the steering modes of vehicles, in particular industrial vehicles, comprising an electronic control unit (30), which receives two input signals (S3, S4) from two magnetic sensors (34, 36), which are placed onto the pistons (20, 22) of the rear axle and the front axle, respectively, of the vehicle; the sensors (34, 36) are activated when suitable magnetic bands (32, 38) which are provided on the pistons (20, 22) of the steering cylinders (24, 26), pass in front of them and they enable, by means of the control unit (30), an automatism (28) that switches to a prefixed steering mode when the front and rear wheels of the vehicle are aligned.

Abstract: A system for sensing the spatial position of suspended axles in industrial vehicles includes two angular sensors (32) fitted on opposite pins (26), each of which is provided with a relative spherical coupling (27) for a panhard bar (16) interposed between an axle (11) and the chassis (15) of the industrial vehicle. Each of the sensors (32) interposed between the axle (11) and the chassis (15) of the industrial vehicle is operated by elastic laminas (35, 36) and each sensor has a drive pin rotated by a corresponding rotating hub (34), the angular sensors (32) detecting the spatial oscillations of the panhard bar (16) in relation to the axle (11) and the chassis (15) of the industrial vehicle. There are two elastic laminas (35, 36) for each angular sensor (32) and these are fitted parallel to a lateral surface of the panhard bar (16), partially overlapping one another and fixed at one end to one of the angular sensors (32) and at the other end to the surface of the panhard bar (16).

Abstract: A suspended axle (31) of the articulated-connection type for industrial vehicles comprises a central casing (32) from which two arms (34) extend, each of which carries, at one of its ends, a support (36) for a wheel, the axle (31) being connected to the chassis (52) of the industrial vehicle by means of first bars set transversely and second bars set longitudinally with respect to the vehicle, where the transverse bars comprise a Panhard rod (54). In addition, interposed between the axle (31) and the chassis (52) are hydraulic elements (84). The longitudinal bars each consist of a single strut (64) having one end connected to the central casing (32) and one, opposite, end connected to the chassis (52) with interposition of a ball-and-socket joint (68).

Abstract: A compact braking assembly in an axle for an industrial vehicle comprising, within an internal body (10) which extends in an arm (18), supported in a rotatable manner (in 16, 17) a casing (14) of a differential (15) provided with a first set of disks (20, 21), with a second set of disks (46, 47) also positioned between the casing (14) and said arm (18) of the axle, with a piston (41) acting on the first set of disks (20, 21), operated by a fluid fed from a respective duct (43), which axially moves a ring (44), distributor of an operating force of the piston (41), in which the piston (41) successively positions the first set of disks (20, 21) in a pack acting as a differential lock, subsequently positioning the second set of disks (46, 47) in a pack acting as a service brake thanks to the presence of a pre-established preloaded elastic element (24).

Abstract: A device to control the dynamic stability of an industrial vehicle, where the chassis of the aforesaid vehicle is fitted with a pair of axles (10′, 10″), extending from each of which are booms (12, 13, 12′, 13′), fitted to the ends of which are articulated steering pivots (14, 15, 14′15′) of the wheels of the aforesaid vehicle and where interposed between the axle (11) and the frame (16) of the aforesaid industrial vehicle are hydraulic cylinders (17, 17′, 18, 18′), said control device providing that each hydraulic cylinder (17, 17′, 18, 18′) is associated with pressure transducers capable of indicating the loads weighing instantaneously on each wheel hub, thus permitting, by means of appropriate data processing, detection of the condition of stability of the vehicle, said pressure transducers (31-34) being associated with hydraulic cylinders (17, 17′, 18, 18′) so as to operate in real time to provide the initial data to process the condi