Mechanical seal
AssigneeEagle Industry Co., Ltd.
InventorTadatsugu IMURA
Life of this patent
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Abstract
Sliding components capable of reducing a leakage amount of a sealed fluid and separating sliding surfaces from each other in a well-balanced manner are provided. At least one sliding surface of seal rings is provided with a supply hole configured to supply a barrier fluid between the sliding surfaces, the sliding surface is provided with an introduction groove which is formed to overlap with the supply hole 10b in an axial view and extend in a circumferential direction, and a bypass groove having both circumferential ends extending toward the introduction groove is formed on a leakage side of the introduction groove.
Claims10
A mechanical seal disposed between a housing and a rotating shaft rotating relative to the housing, comprising a stationary seal ring fixed to a housing side and a rotary seal ring fixed to a rotating shaft side, and defining a sealed fluid space and a leakage space by relative rotation of the stationary seal ring and the rotary seal ring,
- wherein at least one sliding surface of the stationary seal ring and the rotary seal ring is provided with a supply hole configured to supply a barrier fluid between the sliding surfaces and at least one sliding surface of the stationary seal ring and the rotary seal ring is provided with an introduction groove which is formed to overlap with the supply hole in an axial view and extend in a circumferential direction, and
- wherein a bypass groove having both circumferential ends extending toward the introduction groove is formed on a leakage side of the introduction groove.
Dependencies are inferred from the claim text.