FIELD: mechanical engineering.
SUBSTANCE: sealing unit is made of two parts movable with respect to the rod axis. The faces of the parts cooperate with the sealing gland and are flat and perpendicular to the axis of the rod. One of the parts can rotate around the longitudinal axis of the rod. The second part interacts with the fluid to be sealed and can move along the axis of the rod. The face of the part is provided at least two coaxial ring grooves to define triangle projections. One of the grooves is interrupted and used for securing the sealing gland to the thin-walled metallic shell which embraces its side. The sealing gland and the shell are mounted in the ring groove with a spaced relation to the side of the parts which form it.
EFFECT: enhanced reliability.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2621922C1 |
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|
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|
RU2653383C1 |
