Rotary joint
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United States of America Patent
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-
Oct 3, 2023
Grant Date -
N/A
app pub date -
Sep 25, 2019
filing date -
Dec 26, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Each of the mechanical seal devices of a rotary joint includes a first shaft side seal ring attached to a shaft body and a first case slide seal ring attached to one side of the first shaft side seal ring as well as a second case side seal ring attached to a case body and a second shaft side seal ring attached to the second case side seal ring. A first communication flow passage is formed between a first sliding portion of the first seal rings and a second sliding portion of the second seal rings. A second communication flow passage is formed between the first sliding portion of a mechanical seal device disposed on one side in the axial direction and the second sliding portion of a mechanical seal device disposed on the other side in the axial direction in mechanical seal devices adjacent to each other.
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