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US 2025/0035213 A1Published application
Shaft sealing device
AssigneeEagle Industry Co., Ltd.
InventorsYuta NEGISHI, Ryosuke UCHIYAMA, Gai YAMAGUCHI, Yuki MAETANI, Takahiro TSUKAMOTO, Osamu MATSUMOTO, Sayaka MIYAZAKI, Hiroki INOUE, Minori ONUMA, So MAKISHIMA
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Abstract
A shaft sealing device capable of maintaining high lubricity between sliding surfaces is provided. Communication paths communicating with an external space are connected to a drive space and a fluid in the drive space introduced between a pair of sliding surfaces by a fluid introduction mechanism is replenished from an external space through the communication paths.
Claims15
A shaft sealing device, comprising:
- a casing which has a drive space accommodating a drive unit;
- a rotating shaft which penetrates the casing and is disposed to extend from the drive space to a sealed fluid side space;
- and
- a seal component which is disposed between the casing and the rotating shaft, has a pair of sliding surfaces sliding relatively with each other in a facing state, and has a fluid introduction mechanism formed on at least one of the pair of sliding surfaces so that a fluid in the drive space is introduced between the pair of sliding surfaces,
- wherein a communication path which communicates with an external space is connected to the drive space.
2 more elements
Dependencies are inferred from the claim text.