Provided is a continuously variable transmission capable of solving a technical problem of a complex structure comprising three planetary gear sets including a planetary gear set at an input end, a planetary gear set at an output end and a bucket wheel-based planetary gear set. The continuously variable transmission comprises a planetary gear set (101) at an input end and a planetary gear set (102) at an output end. A planetary carrier (103) having a cavity is provided between the planetary gear set (101) at the input end and the planetary gear set (102) at the output end. The planetary carrier (103) comprises an input end cover (6) and an output end cover (10). The input end cover (6) is connected to an inner side of the planetary gear set (101) at the input end. The output end cover (10) is connected to an inner side of the planetary gear set (102) at the output end. A bucket-wheel housing (11) having a cavity is fixed between the input end cover (6) and the output end cover (10). A bucket-wheel (7) is fixed to a planetary gear connecting shaft (4) located inside the bucket-wheel housing (11).

Provided is a continuously variable transmission capable of solving a technical problem in which upon activation of a continuously variable transmission, speed increase in vaned-wheel power density is low and unable to meet the requirement for rapidly increasing output torque. The present continuously variable transmission comprises a planetary gear set (101) at an input end and a planetary gear set (102) at an output end. A planetary carrier (104) having a cavity is provided between the planetary gear set (101) at the input end and the planetary gear set (102) at the output end. The planetary carrier (104) comprises an input end cover (6) and an output end cover (13). A vaned-wheel housing (14) having a cavity is fixed between the input end cover (6) and the output end cover (13). An inner side of the planetary gear set (101) at the input end is connected to the input end cover (6). An inner side of the planetary gear set (102) at the output end is connected to the output end cover (13). A vaned-wheel-based planetary gear set (103) is provided at one internal side of the vaned-wheel housing (14).

A saddle-type vehicle includes a power unit including a multistage transmission having a plurality of gear positions, a transmission actuating mechanism for changing the gear positions, a shift spindle as an input shaft of the transmission actuating mechanism, a crankcase housing therein the multistage transmission and the transmission actuating mechanism, and a crankcase cover covering a side portion of the crankcase. The shift spindle is disposed in the periphery of the crankcase cover and is coupled to a shift actuator mounted on the crankcase cover by a joint rod. Such saddle-type vehicle having a power unit with a shift spindle movable by a shift actuator, in which the shift spindle and the shift actuator are combined with each other in a small-size layout with a joint rod joining the shift spindle and the shift actuator to each other, allows the joint rod to be installed in position with ease.

A continuously variable transmission is provided, solving the technical problems in which a balancing force between a torque-changing bucket wheel and a fluid of a hydraulic two-speed synchronizer is limited, discharging all of the fluid to increase torque results in the loss of flexible transmission, and the structures of control and braking apparatuses are complex. The continuously variable transmission comprises an input end planetary gear set (101) and an output end planetary gear set (102). A cavity planetary gear carrier (104) is disposed between the input end planetary gear set (101) and the output end planetary gear set (102). The cavity planetary gear carrier (104) comprises a cavity input end cover (6) and a cavity output end cover (13). A bucket wheel cavity housing (14) is fixedly disposed between the cavity input end cover (6) and the cavity output end cover (13). An inner side of the input end planetary gear set (101) is connected to the cavity input end cover (6). An inner side of the output end planetary gear set (102) is connected to the cavity output end cover (13). One side inside the bucket wheel cavity housing (14) is provided with a bucket wheel planetary gear set (103). The continuously variable transmission of the invention is widely applicable in the field of transmissions.

A massage system for a seat of a vehicle includes a drive motor, a sliding member having a hollow pillar shape, a first end of the sliding member being blocked by a plate member and a second end of the sliding member being opened, a housing member having a hollow pillar shape, a first end of the housing member being blocked by a partition and a second end of the housing member being opened, and a drive gear module operably connected to the drive motor, wherein at least one roller member is extended toward the housing member at an edge of the plate member, and at least one cam protruding toward the sliding member is formed at a circumference of the partition, wherein a cam profile is formed at a surface of the cam.

A method of controlling a massage system for a seat of a vehicle is provided. The system includes a power supply, a drive motor, an operation switch, and a controller. The controller determines whether the driver is drowsy driving based on a parameter and controls an operation of the drive motor through the operation switch. The controller enters a relax mode when the driver is drowsy driving, connecting the power supply to an ON terminal of the operation switch to operate the drive motor at the relax mode.

An engine reduction gear system includes at least two self-contained, independent engine reduction gearboxes, each capable of connecting to an aircraft engine. Each of the engine reduction gearboxes provides redundant, reduced speed to a main rotor gearbox via a shaft.