| 摘要 |
The invention relates to a single seal, and more specifically to a seal for a rotary shaft extending through a wall, e.g. that of a pump housing. The single seal exhibits one single sealing location between a stationary and a rotating sealing ring. The seal is attached by means of a flange ( 12 ) on to the wall in order to seal off a chamber inside the wall against the shaft ( 22 ) and towards the exterior. According to the invention, the sealing rings ( 1, 2 ) are biased against each other by means of an axially movable member ( 5 ) extending through the wall in order to increase the contact between the sealing rings ( 1, 2 ). The resilient member may be a slitted sleeve ( 5 ) or a coil spring. |
