Abstract: Transmission systems are disclosed which include a dual sunwheel system having an output sunwheel (70) and a control sunwheel (80). A planet cage is arranged around the dual sunwheel system and includes a planet gear (62) in mesh with the sunwheel (70) and a planet gear (64) in mesh with the sunwheel (80). The planet gears (62) and (64) are coupled to one another. The drive ratio of the transmission is controlled by controlling the cage (18) or the control sunwheel (70). The speed of rotation of the input, output and control sunwheel (70) are sensed by sensors (90) and control signals are generated to control a control device to thereby control the rotation of the input cage or the control sunwheel to thereby set the drive ratio of the transmission. The control devices include a motor (323), one or more magnetic powder clutches (110, 120, 640), a variable centroid system (662), and a mechanical pitch transfer gear system (950).

Abstract: An actuator such as a vehicle hand brake actuator is disclosed. The actuator includes an electric motor (18) which drives an orbital gear box (20) which in turn has an output connected to a pulley (60) for applying a load to cables (62) to apply the brake. A pinion gear (24) is mounted on the output of the motor (18) and drives a pinion gear (27) which in turn meshes with a spur gear (30) connected to input shaft (36) an eccentric (42) for driving the gear box (20). The orbital gear box (20) has orbit gears (50, 52) which are fixed together and which have a different number of teeth to provide a gear ratio. The gear (52) meshes with an output gear (56) which in turn is fixed to the pulley (60).

Abstract: A grinder is disclosed which has a housing (12) in which a rotatable disc (60) is mounted. The disc (60) is rotated by a motor (40)and the disc (60) has a periphery which is adjacent an inner stationary wall (102) of the housing (12 ). An air inlet (108) is arranged below the disc and the disc carries vanes (100) so that when the disc rotates, an annular air stream is created at the periphery of the disc in which a grinding zone is established between the periphery of the disc and the stationary wall (102) for grinding material into small particles. The grinding zone includes an annular flow of heavy gas R1. A material inlet (20) is provided for allowing material to enter the housing (12). Large material is grounded by energy intensification after it hits the disc (60) and collides with the inner wall (40) of the housing so as to break down the material into smaller particle size, which can then move to the grinding zone at the periphery of the disc (60) to be further ground into small particles.

Abstract: Transmission systems are disclosed which include a dual sunwheel system having an output sunwheel (70) and a control sunwheel (80). A planet cage (18) is arranged around the dual sunwheel system and includes a planet gear (62) in mesh with the sunwheel (70) and a planet gear (64) in mesh with the sunwheel (80). The planet gears (62, 64) are coupled to one another. The drive ratio of the transmission is controlled by controlling the cage (18) or the control sunwheel (70). The speed of rotation of the input (22), output (20) and control sunwheel (70) are sensed by sensors (90) and control signals are generated to control a control device to thereby control the rotation of planet cage (18) or the control sunwheel (80) to thereby set the drive ratio of the transmission. The control devices can include a motor, one or more magnetic powder clutches, a variable centroid system and a mechanical pitch transfer gear system.