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US 11,231,110 B2Granted
Shaft seal having a shaft sealing ring
AssigneeBruss Sealing Systems GmbH
InventorsJan Specht, Sebastian Teuscher, Timo Besoke, Matthias Spitz, Juergen Grundt
Life of this patent
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Abstract
Shaft seal for sealing a shaft against a housing of a motor vehicle, comprising a shaft sealing ring having a sealing lip for sealing the shaft against the housing, characterised in that a labyrinth seal is arranged upstream of the shaft sealing ring on the oil side thereof.
Claims9
A shaft seal for sealing a shaft against a housing of a motor vehicle, comprising:
- a shaft sealing ring having a sealing lip for sealing the shaft against the housing,
- wherein a labyrinth seal is arranged upstream of the shaft sealing ring on an oil side of the shaft sealing ring,
- wherein the labyrinth seal comprises:
- a contact seal having a sealing lip;
- and
- a mating surface that sealingly interacts with the sealing lip,
- wherein the contact seal is designed and arranged to lift away from the mating surface when the shaft is rotating during proper operation, and
- wherein the contact seal has a weak point which, on account of the dimensioning and arrangement of the weak point, facilitates the lifting away of the contact seal from the mating surface when the shaft is rotating during proper operation.
5 more elements
Dependencies are inferred from the claim text.