发明名称 |
SEKERHETSANORDNING VID ETT TETNINGSARRANGEMANG FOR TETNING AV EN KOLVSTANGS GENOMGANG AV EN CYLINDERGAVEL I ETT KOLV/CYLINDER-AGGREGAT |
摘要 |
A packing arrangement for packing of the passage of a piston rod 3 through a cylinder cover 2 in a piston- cylinder aggregate controlled by means of a pressurised fluid, comprises a packing 10 arranged in the cylinder cover and surrounding the piston rod, and a scraper ring 11 arranged at the outside of the cylinder cover and surrounding the piston rod. An annular groove 6 surrounding the piston rod 3 is formed in the cylinder cover 2 between the packing 10 and the scraper ring 11. The annular groove 6 is connected to a source 15 of vacuum which is adapted to maintain a certain defined normal pressure in the groove. A supervising means 17 is arranged to supervise the pressure in the groove 6 in order to indicate the condition if the pressure therein deviates from said normal pressure. <IMAGE> |
申请公布号 |
SE7811528(A) |
申请公布日期 |
1980.05.09 |
申请号 |
SE19780011528 |
申请日期 |
1978.11.08 |
申请人 |
* VERKSTADSPRODUKTION I BORLENGE AB |
发明人 |
K B * LINDGREN |
分类号 |
F16J7/00;(IPC1-7):F16J7/00 |
主分类号 |
F16J7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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