| 摘要 |
PURPOSE: To attempt reduction of axial space necessary for squeeze control by arranging a rotary fluid transmission unit consisting of a pump and the like in the torque route of a non-step change gear machine. CONSTITUTION: When a servo valve 52 is actuated by a manual operating device 54, liquid pressure of a fluid control chamber 20 increases with oil pressure from a system pump 50. Belt member 16 moves outward from an output pulley 14 and inward of an input pulley 12 causing the servo valve 52 to return to the null position side. The pressure of the fluid control chamber 18 of the input pulley 12 is the pressure between the prime mover 34 and the fluid pump 26 of the rotation chamber (fluid transmission unit). For example, when a rotation difference is generated between rotating members 28, 24, it is controlled to distribute fluid to the fluid control chamber 18 and squeeze load is set by pressing the belt member 16. Thereby in a small axial space, axial squeeze force and torque transmission capability of a pulley device can be increased. |
