| 摘要 |
PURPOSE:To reduce the capacity of liquid pressure supply unit by transmitting the liquid pressure force functioning onto a servo motor piston around a fulcrum or a bracket through a lever to a seal ring. CONSTITUTION:Plural brackets 2-3 are secured at the intermediate position between a seal ring 3 and a cylinder 7 of rotor 2 the other end of which is fitted through a pin R1 to a lever 4. A piston 6 is fitted in the cylinder 7 where coupling arms 3-2 is tightened radially to one end while the other end of the coupling arm 3-2 is fitted through a pin R3 to the lever 4. The liquid pressure force functioning onto the piston 6 is transmitted to the pin R3 thus to press the seal ring 3 through the lever 4 against the water seal face 12 of the water seal sheet ring 5. |
