公开(公告)号：US06213472B1

公开(公告)日：2001-04-10

申请号：US08836689

申请日：1997-12-08

申请人： German Andreyevich Bondarenko ,  Nicolay Dmitriyevich Fedorenko ,  Sergey Anatolyevich Pavlyuk ,  Alexander Vladimirovich Deineka ,  Sergey Alexeyevich Kolesnik

发明人： German Andreyevich Bondarenko ,  Nicolay Dmitriyevich Fedorenko ,  Sergey Anatolyevich Pavlyuk ,  Alexander Vladimirovich Deineka ,  Sergey Alexeyevich Kolesnik

IPC分类号： F16J1534

CPC分类号： F16J15/3412

摘要： The invention relates to a non-contacting shaft seal formed between a rotating sealing ring (3) and a non-rotating circular sealing element (1). The sealing element (1) is spring-loaded towards the sealing ring (3). Gas is pumped into spiral grooves (6) formed in the sealing face (5) of either the sealing ring (3) or the sealing element (1) and extending from an edge thereof during rotation of the sealing ring (3) and a gap (S) is created between the sealing element (1) and the sealing ring (3) against the force of the spring. Each groove is divided into two channels by a wedge-shaped partition (7) extending from the end wall of the groove (6). During speed changes of the rotating sealing ring (3), the gap (S) is maintained by high pressure at the closed end of the channels. The partition (7) is designed to offer little resistance to gas flow in the channel.

摘要翻译： 本发明涉及形成在旋转密封环（3）和非旋转圆形密封元件（1）之间的非接触式轴封。 密封元件（1）朝向密封环（3）弹簧加载。 气体被泵送到形成在密封环（3）或密封元件（1）的密封面（5）中的螺旋槽（6）中并且在密封环（3）的旋转期间从其边缘延伸，并且间隙 （S）克服弹簧的力产生在密封元件（1）和密封环（3）之间。 每个槽通过从槽（6）的端壁延伸的楔形隔板（7）分成两个通道。 在旋转的密封环（3）的速度变化期间，通道的封闭端通过高压维持间隙（S）。 隔板（7）被设计成对通道中的气流几乎没有阻力。