Patent ID: 11892082
Assignee: EAGLEBURGMANN GERMANY GMBH & CO. KG
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A mechanical seal arrangement comprising:
a mechanical seal having a rotating slide ring and a stationary slide ring defining a seal gap therebetween,
a secondary seal arranged on a back side of one of the slide rings facing away from a sliding surface of the slide ring,
the secondary seal being made of a base material and having a coating such that a substance-to-substance bond is formed between the coating and the base material of the secondary seal,
a sleeve-shaped component which is arranged radially inside the secondary seal, a gap having a gap height being present between the sleeve-shaped component and a region of one of the slide rings facing radially inwards, the secondary seal sealing against the back side of this slide ring and the sleeve-shaped component,
wherein the coating is provided on a first side of the secondary seal facing the slide ring and a second side of the secondary seal facing the sleeve-shaped component,
wherein a stiffness of the coating is greater than a stiffness of the base material of the secondary seal, and
wherein a thickness of the coating is smaller than or equal to a gap height of the gap.