Abstract: A power transmission system of the belt-type for a motorcycle including a driving pulley to be driven by a crankshaft of an engine and a driven pulley connected by a belt to the driving pulley. A gear change mechanism including a plurality of gears is interposed between the crankshaft and the driving pulley.

Abstract: A solenois-actuated valve arrangement in a four-speed automatic transmission having a structure in combination with the manual valve in the hydraulic circuit that will enable a limp-home mode or limited transmission operation, which will permit the vehicle to operate in park, neutral, second or reverse gear as desired in that absence of electrical power to the solenoid-actuated valves.

Abstract: An improved system (10 and 100) is disclosed in which a plurality of actuation systems (12 and 14) are activated in a timed sequence by a single prime mover (16). The prime mover is coupled to a transmission (18) which drives the first and second actuation systems for moving the first and second actuation systems between the first and second positions and back to the first position. A timer (34) is provided for controlling the timing of activation systems between the first and second positions and back to the first position. The present invention maintains precise synchronism in the actuation of the first and second actuation systems without separate power units.

Abstract: A multimode infinitely variable traction roller transmission including a toroidal traction roller transmission for infinitely varying the transmission ratio in each of the modes. Power is transmitted from an input shaft to the planet carrier of a planetary transmission whose ring is associated with the output shaft of the transmission and through the toroidal traction roller transmission to the sun of the planetary transmission selectively by way of a chain gear or spur gear transmission provided with clutches for selective engagement thereof, that is, for rotation of the sun in one or the opposite direction. A brake structure is provided for locking the planet carrier in one of the transmission modes.

Abstract: A power transmission with differential action employs hydraulic screw pumps for stepless variable coupling between the drive shaft and a driven shaft, axle or axles. The pump screws are driven by gears respectively engaging oppositely facing bevel tooth sets on a master gear. Centrifugal forces urge choke sleeves slidable on the screw pump housings to close the ports progressively, ultimately approximating drive conditions at a predetermined speed of the driven shaft, axle or axles.

Abstract: An automatic transmission having Ravigneaux Type planetary gear unit comprises a first and a second sun gear, a long pinion meshing the first sun gear, a short pinion meashing the long pinion and the second sun gear, a carrier supporting the long pinion and the short pinion and a ring gear meshing the long pinion;the input shaft connects the second sun gear through a first clutch, and connects the first sun gear through a second clutch;the output member is located in the center of the automatic transmission mechanism so that the output member encloses the input shaft;in case of three speed transmission mechanism, a first clutch is located axially and extreme outside the transmission mechanism;in case of four speed transmission mechanism a third clutch is located axially and outside the first clutch.

Abstract: A nutating cone transmission is characterized by a flexible speed control ring for controlling the rotational speed of the cone about its axis. The ring is mounted adjacent to the cone with a portion thereof in contact with and depressed by the surface of the cone. A displacement mechanism laterally displaces the ring relative to the cone while preventing rotational movement of the ring and slippage between the ring and the cone. The position of the ring relative to the diameter of the cone controls the rotational speed of the cone which is delivered to an output. The flexible speed control ring increases the reliability and efficiency of the transmission by eliminating slippage between the ring and damage to the cone through wear.

Abstract: A hydraulic control system for an automatic transmission has a shifting shock reducing device capable of regulating the transitional oil pressure applied to the frictionally engaging devices of the automatic transmission, and provided between a shift valve and the frictionally engaging devices. The shifting shock reducing device is controlled on the basis of a signal representative of the torque of the engine, and a signal representative of the transitional shift state to regulate the transitional oil pressure. Thus, the hydraulic control system is highly reliable, is capable of compensating for variations of the functions thereof over time, and is capable of maintaining a high control accuracy.

Abstract: A vehicle engine throttle valve control apparatus whereby the actuation position of an accelerator pedal, the degree of opening of the throttle valve, and the position of the vehicle gear shift are detected. One of a plurality of different throttle valve target opening degree characteristics is then selected which corresponds to the current gear shift position, and the selected characteristic is used to set a target degree of opening for the throttle valve in accordance with the accelerator pedal position. The throttle valve is driven so as to make the actual degree of throttle opening become equal to the target value. Appropriate throttle control is thereby automatically performed each time a gear shift operation is executed, without intervention by the vehicle driver.

Abstract: A fluid-powered rotary actuated support for a platform, having a body with a vertical axial orientation during use. A drive member has a drive shaft extending coaxially within the body and a flange attached to an end portion of the shaft toward an upper body end. The shaft and flange are formed as an integral unit free of connection joints therebetween. The flange projects radially outward from the shaft beyond an inner body surface and is rotatable relative to the body through a horizontal plane. A first ball race is formed in the flange and a second ball race is formed in the body with balls disposed therebetween. Linear-to-rotary transmission means disposed within the body are operable for providing rotational movement between the drive member and body. The body utilizes a stationary seal to facilitate seal placement and reduce the overall length of the body.

Abstract: A system for controlling an electromagnetic clutch for a motor vehicle at transient state of driving condition of the motor vehicle. An actual engagement ratio is obtained in dependence on speeds of a drive member land a driven member of the clutch. A desired engagement ratio of the clutch is obtained in accordance with the speeds of the drive member and driven member. Clutch current is controlled so as to converge the actual engagement ratio on the desired engagement ratio. The transition of the change of the actual engagement ratio is observed and a correction signal is generated when the actual engagement ratio does not change in a converging direction. The clutch current is corrected by the correction signal.

Abstract: A gear drive for a shuttleless loom is equipped with a coupling device or clutch between an input first gear group (G1) and an output second gear group (G2). The coupling or clutch provides a form-locking connection between the two gear groups which convert a continuous rotational movement on the input side into a back-and-forth movement on the output side to drive, for example, a gripper rod for the insertion of the weft thread into the loom shed. The coupling device or clutch can be rapidly operated by an electromagnet or by an electric motor and greatly facilitates performing the operations that are, for example, necessary for repairing a broken weft thread.

Abstract: A bias ratio levelling apparatus for a worm gear type differential include first and second shafts mounted on a common axis first and second worm gears fixedly provided in the rotational direction at opposed end portions of the two shafts, a first worm wheel directly intersected with the shafts and engaged with the first worm gear, a second worm wheel directly intersected with the shafts and engaged with the second worm gear, a rotatable member for rotatably bearing the first and second worm wheel about a central axis and for rotating first and second worm wheel about the first and second shafts. A spur gear is fixedly connected to each worm wheel for transmitting the rotation of one worm wheel to the other worm wheel by synchronization, and a spacer is interposed between the first and second worm gears and axially fixed to the rotational member in the direction of the first and second shafts.

Abstract: A clutch release bearing for an automobile vehicle has an operating member controllable by the clutch release fork and a drive member adapted to act on the fingers of the clutch diaphragm. The drive member comprises a roller bearing having a non-rotatable race formed with a flange for engaging the operating member, a roller cage, and a rotatable race for contact with the diaphragm. The operating member and the drive member are held together by a spring washer which during assembly of the release bearing is engaged and flipped over into position by a fitting bearing which is formed on the roller cage between the rotatable race and the flange.

Abstract: In a gearbox having a plurality of layshaft gears meshing with a common central gear, a mounting for the central gear rotationally locks that gear with an output shaft, but permits the central gear to pivot about radial axes and to move in radial directions so as to equalize torque transmission through the layshaft gears.

Abstract: An infinitely variable transmission having a driving sheave assembly connected to the crankshaft of an internal combustion engine and coaxially mounted with respect to the crankshaft, an intermediate shaft upon which is mounted a driven pulley assembly, a drive chain or belt drivably connected the pulley assemblies, high range and low range gearing coaxially disposed with respect to the driven pulley assembly, a countershaft arranged in parallel and spaced disposition with respect to the secondary shaft wherein the countershaft is adapted to support forward and reverse gearing and improved bearing means for supporting the countershaft and wherein a differential output assembly connects torque output elements of the countershaft to each of two axle half shafts thus providing improved torque transmitting capacity with reduced overall dimensions due to reduced shaft spacing.

Abstract: A rotational control apparatus in the preferred form of a fan clutch is disclosed including a friction disc portion slidably mounted and rotationally related by splines on a hub in turn rotatably mounted on a fixed shaft. The splines are formed on a radially outermost portion of the hub. A washer abuts with a shoulder formed in the hub at the intersection of a radially reduced portion with the radially outermost portion and with a retainer on the free end of the radially reduced portion sandwiches a spring in a compressed condition on the reduced portion. In an assembled relation, the friction disc portion abuts with the washer such that the spring biases the friction disc portion. The friction disc portion may be slid from the hub without removal of the hub from the shaft and with the spring retained on the hub by the washer. Both sides of the friction disc portion taper together such that the thickness therebetween decreases with the radial spacing from the rotational axis.

Abstract: In combination with a power transfer device, a power transmission includes a first shaft rotatably mounted within a housing and having an input end for connection to an output shaft of the transmission and an output end for drive connection to a pair of rear road wheels, a second shaft rotatably mounted within the housing in parallel with the first shaft for drive connection to a pair of rear road wheels, a drive member rotatable on the first shaft, a driven member mounted on the second shaft for rotation therewith and being drivingly connected to the drive member, a limited-clip differential in the form of viscous clutch coupling having an outer casing mounted on the first shaft for rotation therewith and coupled in a liquid-tight manner with an inner sleeve rotatably on the first shaft for defining a viscous fluid chamber and for relative rotation thereto, and a clutch sleeve axially movably mounted on a hub portion of the drive member for rotation therewith and shiftable between a first position where it i

Abstract: The invention relates to a motor vehicle gearbox with two concentrically mounted input shafts (6,9), each driving an individual countershaft (12,15). The countershafts have gear wheels (16,18,17,19,41) in engagement with gear wheels (21,22,40) on an output shaft. The shafts are arranged in a V-configuration and one countershaft has a disengageable gear wheel (23) in engagement with a gear wheel (11) on the second countershaft to reverse the rotational direction of the latter for driving in reverse. One countershaft (12) has a central synchronizing device (30), by means of which the countershaft, which is drivingly coupled to the temporarily non-driven input shaft, can be accelerated up to a rotational speed determined by the gear speed selected.

Abstract: A CVT combined with a gearshift mechanism to permit shifting of power flow under conditions of zero load and synchronous speed. The CVT can adjust the output speed within a gear ratio without resetting of the CVT ratio during a shift. The full speed range of the CVT is matched by two planetary drivetrains having normal and inverted characteristics and driven by two shifting gearboxes. Input power is divided into three paths to drive a central CVT and the two shifting gearboxes. The output of one of the gear-boxes is clutched to the normal input of a compound planetary drivetrain and the output of the other gearbox is clutched to the inverted input of the compound planetary. The CVT is coupled to the sun gear input of the compound planetary with the output of the compound planetary providing the output of the gear-assisted CVT. Operation occurs with either of the two clutches engaged to a respective input but not both, so that each gearbox may be shifted when its output is disengaged.