| 摘要 |
FIELD: machine building.SUBSTANCE: main cylinder comprises the main body, piston and piston seal. Main body of the cylinder includes brake fluid discharge channel and feed line communicated with tank. Piston is made with possibility of formation a pressure chamber capable of supplying the fluid pressure in the discharge channel between the main body of the cylinder and piston. Piston seal seals the space between the supply line and the pressure chamber by means of sliding contact of inner circle with the piston. Piston seal includes annular base, internal ring extending section, outer ring extending section, intermediate extending section, and connecting section.EFFECT: ruled out ingress of inner annular extending section between the main body of the cylinder and piston in piston displacement.8 cl, 7 dwg |
