| 摘要 |
FIELD: mechanical engineering. ^ SUBSTANCE: piston seal comprises piston ring, several expander, and spiral compression springs that are arranged in the piston groove. The expander spiral springs are mounted in the locking pipes radially arranged inside the piston. One end of the springs is secured to the projection of the core arranged at the longitudinal axis of the piston. The other end is secured to the inner projection of the pusher. The free end of the pusher passes through the opening in the piston groove for permitting transmitting effort from the spiral spring to the piston ring and pressing it to the wall of the cylinder. ^ EFFECT: improved pressure-tightness. ^ 1 dwg |
