F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
F16J 15/34 (2006.01) F16J 15/40 (2006.01)
Patent
CA 2076661
The present invention consists of a shaft packing with an inner seal (4) and an outer seal (2) which are biased by means of springs (5) and an intermediate ring (1). The spring package and the major part of the shaft packing are positioned on the outside of a wall (20) of a container or the like, on the inside of which container an aggressive medium may be found. On the inside of the wall and in contact with the medium there are only a counter ring (4'), the inner seal (4), the in- termediate ring (1), and a mounting (14). All these parts have smooth surfaces without grooves, notches or the like in order to avoid that the possibly aggressive medium accumulates on the shaft packing. The shaft (19) is journalled in the wall (20) by the mounting (14), and the contact surfaces (22) between the mounting (14) and the wall (20) have circular cross-sections. The mounting (14) is prevented from ro- tating by means of a washer (17) secured to the wall (20) and lowered into a groove (21) on the outer surface of the mounting (14). A flush- ing space as defined between a sleeve (8) fixed on the shaft, the inner sleeve (4'), the inner seal (4), the intermediate ring (1), the outer seal (2) and the outer sleeve (2') for lubrication of the inner and outer seals (2, 4) and their sliding surfaces. The flushing is also intended to re- move particles possibly detached by the rotation of the shaft.
Anderberg Goran
Huhnseal Ab
Ridout & Maybee Llp
LandOfFree
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