| 摘要 |
power engineering industry, more particularly face sealings. SUBSTANCE: face sealing contains a counter body and a sealing ring. The sealing ring is provided with two sealing collars, one from a fluid side, the other from a gas side. A ring groove is located between the collars and is connected to the space of fluid discharge through passages of the sealing ring. The passages are placed more close to the axis of rotation of the sealing than the sealing collar edge from a fluid side. The counter-body surface is provided with deepened inclined areas in the zone of the sealing collar, and the space of fluid discharge is separated by the secondary sealing ring from the air space of the sealing. The sealing ring and the counter-body are out of contact. The fluid liking through the sealing collar is supplied back to the sealing space. EFFECT: enhanced reliability, reduced leakage. 4 dwg |
