Abstract: A differential apparatus (7) comprises: a differential casing (21) rotated by an engine power; a plurality of pinion gears (65, 66) slidably housed in accommodation holes (63, 64) formed in the differential casing: a pair of side gears (35, 37) geared with each other via the pinion gears, two opposing end surfaces thereof being slid relative to other either directly or via a thrust washer (61); and a block member (47, 91, 97) interposed between two inner circumferential surfaces of the two side gears so as to center the side gears, respectively. In particular, at least one oil sump (77, 79; 95; 101) is formed between the block member and the side gears, to supply lubricant to sliding portions between the block member (47, 91, 97) and the side gears (35, 37) and between two opposing end surfaces of the two side gears, by a centrifugal force generated by the rotating differential casing.

Abstract: A differential apparatus includes a differential casing, a pair of helical side gears and a pair of helical pinion gears. The helical pinion gears are accommodated in bores formed in the differential casing, respectively. The long and short helical pinion gears have respective first gear portions meshing with the side gears, respectively, and second gear portions meshing with each other. Each gear tooth of the long pinion gear is so tapered that tip thickness of the gear tooth is gradually decreased from an axial end of the gear portion toward the other gear portion. Even if the long pinion gear is inclined by meshing reactive forces, it is possible to ensure sufficient tooth bearing areas at respective tooth faces of the pinion gears.

Abstract: A differential apparatus includes a differential casing, a pair of side gears and plural pairs of pinion gears. The pinion gears are accommodated in bores formed in the differential casing, respectively. On the side wall of the differential casing a plurality of lubrication holes are formed for introducing the lubrication oil into the differential casing. Each lubrication hole is arranged so that a center thereof is positioned in the vicinity of a meshing point of the pinion gears. In operation, due to the screw pumping effect of the pinion gears, plenty of lubrication oil is introduced into meshing portions of the pinion gears.

Abstract: A differential unit having a speed-sensitive-type differential limiting function is capable of moderating the differential limiting force to maintain the controllability and stability of a vehicle. The differential unit according to the present invention includes a differential case to be rotated by drive force of an engine, a differential mechanism for distributing rotations of the differential case to a pair of output shafts, a frictional clutch for limiting the differential of the differential mechanism, a hydraulic actuator for clutching the frictional clutch, an oil pump which receives differential torque of the differential mechanism so as to be driven to operate the hydraulic actuator, control valves for introducing air to the oil suction portion of the oil pump, and a controller for opening or closing the control valve to correspond to a condition under which a vehicle is driven.

Abstract: Disclosed is a differential gear assembly having: a rotatable case; first and second side gears being coaxially supported in the case and connected to first and second output shafts, respectively; at least one pair of first and second pinion gears, the first pinion gear having first and second gear portions, the second pinion gear having third and fourth gear portions, the first and second pinion gears being arranged in parallel to the rotation axis of the case so that the first gear portion is engaged with the third gear portion, the second gear portion is engaged with the first side gear, and that the fourth gear portion is engaged with the second side gear; and a holding member being provided on the case for holding the first and second pinion gears. The first and second pinion gears move with the case around the rotation axis in response to rotation of the case and each of the first and second pinion gears is slidable and rotatable around an axis thereof with respect to the holding member.

Abstract: Disclosed is a differential gear assembly comprising: a case rotatable around a rotation axis in response to a driving force of an engine; first and second side gears coaxially arranged within the case and supported in such a manner that the first and the second side gears are individually rotatable around the rotation axis of the case with respect to the case, the first and the second side gears being adapted to be connected to first and second output shafts respectively; at least one pair of first and second pinion gears each of which has a center axis parallel to the rotation axis of the case, the first pinion gear having first and second gear portions, the second pinion gear having third and fourth gear portions, the first gear portion being engaged with the third gear portion, the second gear portion being engaged with the first side gear, and the fourth gear portion being engaged with the second side gear; and a holding member formed on the case and having a holding bore for holding the first and the th

Abstract: An air conditioning system comprises: a motor (5, 69); a speed increasing mechanism (7) connected to the motor to increase revolution speed of the motor; an air compressor (3) driven by the motor through the speed increasing mechanism at high speed to produce a high-temperature pressurized air; a cooler (11) for cooling the high-temperature pressurized air; and a turbine (9) for further cooling the pressurized air cooled by the cooler on the basis of adiabatic expansion. The rotational force of the turbine is feed-backed to the motor and the air compressor. In the air conditioning system thus constructed, since the air compressor (3) is driven by the motor (5, 69) through the speed increasing mechanism (7) in particular, it is possible to increase the pressure ratio of the air compressor and the air conditioning capacity, without increasing the size and weight of the air conditioning system.

Abstract: A torque divider for distributing the engine torque in a determined torque dividing ratio includes a case which is driven and rotated by an engine and which has first and second supporting holes. In the torque divider first and second side gears are arranged side by side. The second side gear has a predetermined radius larger than that of the first side gear. First and second pinion gears are housed inside the first and second supporting holes, respectively. The first and second pinion gears, respectively, have first and second gear parts. The first gear parts of the first and second pinion gears are meshed with each other; the second gear part of the first pinion gear is meshed with the first side gear; and the second gear part of the second pinion gear is meshed with the second side gear.

Abstract: A continuously variable transmission employing a vane pump and a vane motor has a mechanism for mutually moving housings of the vane pump and the vane motor or for moving each independently. The mechanism can gradually decrease the eccentricity of the internal circumference of the housing of the vane pump with respect to a rotor of the vane pump while increasing the eccentricity of the internal circumference of the housing of the vane motor with respect to a rotor of the vane motor, or vice versa, thereby regulating the rotative speed output from the vane motor.

Abstract: A supercharging device including an actuator for controlling return force of a resilient member in a continuously variable transmission (CVT) with a flyweight and a resilient member is provided. The actuator is employed so that a movable flange slides along the axis thereof away from a fixed flange in a drive pulley of the CVT when under a light load for which auxiliary machinery such as a supercharger driven by the CVT requires little driving force. The actuator is installed inside an input pulley through which the driving force of the engine is transmitted to the drive pulley.

Abstract: Disclosed is a differential gear assembly comprising: a case rotatable around a rotation axis in response to a driving force of an engine; first and second side gears coaxially arranged within the case and supported in such a manner that the first and the second side gears are individually rotatable around the rotation axis of the case with respect to the case, the first and the second side gears being adapted to be connected to first and second output shafts, respectively; at least one pair of first and second pinion gears each of which has a center axis parallel to the rotation axis of the case, the first pinion gear having first and second gear portions, the second pinion gear having third and fourth gear portions, the first gear portion being engaged with the third gear portion, the second gear portion being engaged with the first side gear, and the fourth gear portion being engaged with the second side gear; and a holding member formed on the case and having a holding bore for holding the first and the t

Abstract: A differential apparatus comprises: a differential casing; a first side gear rotatably arranged within the differential casing and connected to the first shaft; a second side gear rotatably arranged within the differential casing in parallel to the first side gear and connected to the second shaft; at least one short pinion gear housed in a bore formed in the differential casing so as to be rotated within the bore and around the first and second side gears together with the differential casing; at least one long pinion gear housed in another bore formed in the differential casing in parallel to and in mesh with the short pinion gear so as to be rotated within the bore and around the first and second side gears together with the differential casing; and a viscous coupling. The first and second side gears are geared to each other through the short and long pinion gears so as to be rotated differentially relative to each other, when the short and long pinion gears are driven by the differential casing.

Abstract: In a supercharging device for an internal combustion engine including an air compressor, a bearing holder, and a planetary gear type of speed increasing gear device with an internal gear, a pair of pinion gears, and a sun gear, a oil channel guiding lubricating oil to the plain bearings to form oil film damper is provided in the bearing holder. In the bearing holder located between the pinion gears, an oil guide means for directing the lubricating oil, splashed from the pinion gears toward the oil guides, in the direction of the sun gear, is provided. A thrust washer can be arranged between the plain bearings to receive the thrust force of the impeller shaft.

Abstract: Disclosed is a differential gear assembly. The assembly comprises a case which is rotated by a driving force of a power source and has a pair of walls extending substantially radially and defining axial ends of the case. First and second side gears are coaxially arranged within the case and supported in such a manner that the first and the second side gears are individually rotatable with respect to the rotation axis of the case relative to the case, and they are adapted to be connected to first and second output shafts, respectively. At least one pair of first and second pinion gears are arranged in parallel to the rotation axis of the case, and the first pinion gear has first and second gearing portions, the second pinion gear having third and fourth gearing portions, the first gearing portion being engaged with the third gearing portion, the second gearing portion being engaged with the first side gear, and the fourth gearing portion being engaged with the second side gear.

Abstract: A clutch device for controlling transmitted torque in a vehicle comprises a first friction clutch including multiple clutch disks, a hub, a clutch drum and a pressing ring; a second friction clutch including multiple clutch disks, a clutch drum, a cam ring and an electromagnet; a cam mechanism; and a spring. A part of the thrust force is cancelled by energizing force of the spring to shift an operating point of the first friction clutch to a high torque side. A range where only the second friction clutch operates becomes wider. Therefore, change in the torque of the second friction clutch relative to change in operating force is decreased. This contributes to an accurate torque control. In accordance with the function of this clutch device, features of front wheel drive and 4WD vehicles are obtained so that fuel consumption can be decreased and road ability can be improved. Further, straight running performance of a vehicle can be achieved and a tight corner braking phenomenon can be avoided.

Abstract: A supercharging device for an internal combustion engine for which the load can be changed by an accelerator pedal includes: a continuously variable transmission being driven by the engine and including a drive pulley, a driven pulley, a belt, a flyweight, and a presser member, the drive and driven pulleys having movable flanges and fixed flanges mounted on rotatable shaft members and being rotatable therewith, the belt being wound around and coupling the drive and driven pulleys, and the flyweight and the presser member being provided on at least one of the drive pulley and the driven pulley; and a mechanical type supercharger driven by the continuously variable transmission for supercharging the engine, the supercharger having a housing and a runner shaft with a runner rotatably supported inside the housing.

Abstract: A gear transmission apparatus comprises a planetary gear mechanism having an internal gear, a plurality of pinion gears, a pinion carrier, and a sun gear. The pinion carrier has an overhang portion extending along an outer periphery of the internal gear. A bearing or bush is provided to support the overhang portion. A band brake is provided for braking the pinion carrier when brought into frictional contact with the overhang portion. A one-way clutch is interposed between the rotation input shaft and the rotation output shaft so as to allow rotation of the rotation output shaft in a speed-increase direction. In a preferred embodiment, either the sun gear or the internal gear is braked by the band brake.

Abstract: A supercharging device for an internal combustion engine includes a runner for compressing air, a driven pulley for rotating the runner, and a drive pulley for rotating the driven pulley. The drive pulley has a fixed sheave and a movable sheave movable in an axial direction with respect to the fixed sheave. A belt is wound around the driven pulley and the drive pulley. A control device is for moving the movable sheave in an axial direction so that the movable sheave is moved away from the fixed sheave under a low load condition and that said movable sheave is moved towards the fixed sheave under a high load condition.

Abstract: A differential apparatus of planetary gear type comprises an internal gear, and a sun gear on the side of an axle. Each of a plurality of pinion-gear sets has an even number of pinion gears rotated in mesh with each other. Ones of the pinion gears on the outside are in mesh with the internal gear, while the remaining pinion gears on the inside are in mesh with the sun gear. A pinion carrier rotatably supports the pinion gears. A torque is inputted from one of the internal gear and the sun gear. A rotating frictional force between the pinion gears on the torque output side and the pinion carrier is reduced less than those of each of the remaining pinion gears.

Abstract: A hub clutch device for connecting and disconnecting an axle and a wheel in a part time four-wheel drive vehicle, includes a wheel hub having a flange portion secured to the wheel, a hollow spindle secured to a vehicle body, and a roller member positioned between the wheel hub and the hollow spindle. A housing with a gear portion covers an outer side of the wheel hub and defines a first sealed chamber. A bellows with a second sealed chamber being substantially vacuum is provided with a spring member pressing the bellows in an axial direction. A sliding gear always engaging the gear portion of the housing is axially movable according to a motion of the bellows to connect the axle with the wheel in a rotational direction. A pressure producing unit is provided to move the bellows against a spring force of the spring member.