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.

A spring system that includes an adjustable spring system that is operated by a motor.

An engagement chain has two chain members. Each of the chain members includes link plates, each of which has two pin holes, and coupling pins. The two pin holes are aligned in the advancing/retreating direction and are sized differently from each other. Each of the coupling pins of each chain member is tightly received in the smaller pin hole of the two pin holes of one of any adjacent two of the link plates in the advancing/retreating direction and is loosely received in the larger pin hole of the two pin holes of the other one of the two adjacent link plates. In a state in which the chain members are integrated with each other, any two of the coupling pins that are opposed to each other are in the same received states in the corresponding pin holes.

This invention is an all gear continuously 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 continuously 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.

An electromotive furniture drive with a guide path and an output unit which moves along the guide path and which at least partly surrounds the guide path. The guide path has a gear rack, and the output unit has a drive motor with a speed-reducing mechanism and an output gear which is in engagement with the gear rack of the guide path.

A continuously variable transmission (CVT) that does not depend on friction to transmit power. A constant and uniform output angular velocity can be achieved when the input angular velocity is constant and uniform by modifying the rate of change of angular displacement of the input disk using a set of non-circular gears. Co-axial input and output can also be achieved.

A continuously variable transmission (CVT) that does not depend on friction to transmit power. A constant and uniform output angular velocity can be achieved when the input angular velocity is constant and uniform by modifying the rate of change of angular displacement of the input disk using a set of non-circular gears. Co-axial input and output can also be achieved.

The present invention relates to a linear electro-mechanical actuator for transferring a rotational motion to a linear motion. The actuator provides a piston having an outer load-carrying surface and being at least partly arranged inside a housing. The actuator further provides a transmission module adapted to transfer a rotational motion generated by a motor to a linear motion of the piston. The actuator includes a separating member and a lubricating member having a porous polymeric matrix and a lubricating material, the separating member and the load-carrying member being arranged adjacent to each other. Thereby, the actuator allows for lubrication of at least a portion of the outer load-carrying surface of the piston by the lubricating material upon movement of the piston. For instance, the linear electro-mechanical actuator may not require, or may at least minimize, the need of relubrication.