FIELD: machine engineering.
SUBSTANCE: stem seal contains elastic elements mounted on the piston rod. To compress the elastic elements, two directly interacting movable crimping rings are provided. One ring is installed on the side of the sealed volume, and the second crimping ring is screwed into the body of the device and presses against the conical surface of the resilient element facing it, compressing the elastic elements in a closed space between the conical surfaces of the crimp rings. Elastic elements due to the presence of a guaranteed gap are uniformly pressed around the rod and thus seal the joint. To increase the reliability of sealing on the contacting surfaces of elastic elements, a groove is provided, made in the form of cylindrical grooves, in which elastic supports are installed.
EFFECT: creation of a seal rod, operating at negative and positive operating temperatures, its use in designs with different strokes and forces of rod movement.
3 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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