This invention is an all gear infinitely variable transmission that is non-dependent on friction. It can me be used in high torque applications. It offers a steady and uniform output for a steady and uniform input. It allows a co-axial input and output thereby by using a planetary gear system the output can be made continuous from forward to reverse. This uses a scotch-yoke mechanism to convert rotational motion to a linear reciprocating motion. The linear distance of this reciprocating motion-stroke is changed by altering the crankpin location of the scotch-yoke mechanism. This reciprocating motion is converted to a rocking motion by using a rack and pinion and later converted to a unidirectional motion via a One-Way-Bearing. A set of non-circular gears are used to achieve a steady and uniform output. It employs a very simple mechanism to change the ratio between the input and output of the transmission.

This invention is an all gear infinitely variable transmission that is non-dependent on friction. It can me be used in high torque applications. It offers a steady and uniform output for a steady and uniform input. It allows a co-axial input and output thereby by using a planetary gear system the output can be made continuous from forward to reverse. This uses a scotch-yoke mechanism to convert rotational motion to a linear reciprocating motion. The linear distance of this reciprocating motion-stroke is changed by altering the crankpin location of the scotch-yoke mechanism. This reciprocating motion is converted to a rocking motion by using a rack and pinion and later converted to a unidirectional motion via a One-Way-Bearing. A set of non-circular gears are used to achieve a steady and uniform output. It employs a very simple mechanism to change the ratio between the input and output of the transmission.

Disclosed are a continuously variable transmission including a plurality of input links integrated into one input link, a plurality of coupler links integrated into one coupler disk, and at least four even-numbered output gears circumscribed about at least four even-numbered output links via a clutch, wherein, even if two output gears of the at least four even-numbered output gears are put into a slip state by the clutch, the other two output gears rotate in a direction of forcibly transmitting power.

Three controls, three variable gear assemblies, an optional hatch or variable propeller pitch, and a variable overlap generator (VO generator), as well as one or more commutator and brushless free direct current generators may be used independently and together to provide constant frequency and voltage output power and to increase the amount of output power generated with the same input water flow or wind speed in a plurality of embodiments useful in wind power generation and water renewable energy generators for any of tidal and ocean current or wave conditions. Two Transgear assemblies side-by-side and sharing the same central shaft may comprise a constant speed motor control, produce required constant frequency and voltage and be reduced in part count and complexity. The variable overlap generator of a marine hydrokinetic or wind power generator may be used as a low torque generator, a high power-rated generator or a control in these applications and may generate more electric power than a conventional fixed power generator (the rotor axially aligned to overlap the stator in a conventional manner) over a wider input range. An electromotive force (EMF) embodiment generates alternating current at constant frequency and voltage in varying wind and water speed conditions.

Three controls, three variable gear assemblies, an optional hatch or variable propeller pitch, and a variable overlap generator (VO generator), as well as one or more commutator and brushless free direct current generators may be used independently and together to provide constant frequency and voltage output power and to increase the amount of output power generated with the same input water flow or wind speed in a plurality of embodiments useful in wind power generation and water renewable energy generators for any of tidal and ocean current or wave conditions. Two Transgear assemblies side-by-side and sharing the same central shaft may comprise a constant speed motor control, produce required constant frequency and voltage and be reduced in part count and complexity. The variable overlap generator of a marine hydrokinetic or wind power generator may be used as a low torque generator, a high power-rated generator or a control in these applications and may generate more electric power than a conventional fixed power generator (the rotor axially aligned to overlap the stator in a conventional manner) over a wider input range. An electromotive force (EMF) embodiment generates alternating current at constant frequency and voltage in varying wind and water speed conditions.

A transmission includes a gear mechanism including a gear box, a drive shaft, and an output gear, wherein a bending movement converted into a rotational motion of the output gear is realized through a wobbled member upon rotation of the drive shaft. First and second gear wheels are connected to the output gear and each includes at least one idler pulley having a locking direction and a freewheeling direction. A wobbled plate, mounted on the drive shaft so as not to rotate independently, carries the wobbled member and is positioned to pivot within the wobbled member. The inclination angle of the wobbled plate relative to the wobbled plate rotation axis can be adjusted via control actuators, enabling the wobbled plate to tilt upon rotation of the drive shaft and thus creating a wobbled movement in the wobbled member via the bearing between the wobbled plate and the wobbled member.

A stepless transmission 1 is provided for preventing drive wheels from being driven despite the driver's intention during vehicle deceleration. A control device 40: when the required drive force of the vehicle is 0, controls the output rotational speed Ne of a travel drive source 50 to be Ne2, and controls the transmission gear ratio i of the transmission 1 so that the transmission 1 in the case where the Ne is Ne1 changes from a first state to a second state; and when the vehicle speed V is less than a boundary speed Vgn, controls the ratio i to be a state maintaining transmission gear ratio ign that enables the first state to be maintained even during vehicle deceleration. In the second state a rotational drive force is transmitted from an input shaft 2 to an output shaft 3. In the first state the transmission is prevented.

A stepless transmission 1 is provided for preventing drive wheels from being driven despite the driver's intention during vehicle deceleration. A control device 40: when the required drive force of the vehicle is 0, controls the output rotational speed Ne of a travel drive source 50 to be Ne2, and controls the transmission gear ratio i of the transmission 1 so that the transmission 1 in the case where the Ne is Ne1 changes from a first state to a second state; and when the vehicle speed V is less than a boundary speed Vgn, controls the ratio i to be a state maintaining transmission gear ratio ign that enables the first state to be maintained even during vehicle deceleration. In the second state a rotational drive force is transmitted from an input shaft 2 to an output shaft 3. In the first state the transmission is prevented.

A vehicle power transmission device equipped with a crank type transmission unit is provided in which since a first sprocket provided on an input shaft upstream portion and a second sprocket provided on an output shaft downstream portion are connected by an endless chain, and a dog clutch is disposed between the input shaft main body portion and the input shaft upstream portion, when the input shaft main body portion is seized and becomes non-rotatable, the dog clutch is disengaged so as to detach the input shaft upstream portion from the input shaft main body portion, and the driving force of an engine is transmitted to the output shaft downstream portion via the input shaft upstream portion, the first sprocket, the endless chain and the second sprocket, thereby enabling the vehicle to travel in the minimum necessary way.

A vehicle power transmission device equipped with a crank type transmission unit is provided in which since a first sprocket provided on an input shaft upstream portion and a second sprocket provided on an output shaft downstream portion are connected by an endless chain, and a dog clutch is disposed between the input shaft main body portion and the input shaft upstream portion, when the input shaft main body portion is seized and becomes non-rotatable, the dog clutch is disengaged so as to detach the input shaft upstream portion from the input shaft main body portion, and the driving force of an engine is transmitted to the output shaft downstream portion via the input shaft upstream portion, the first sprocket, the endless chain and the second sprocket, thereby enabling the vehicle to travel in the minimum necessary way.