The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2024
Filed:
Nov. 24, 2020
Eagleburgmann Germany Gmbh & Co. KG, Wolfratshausen, DE;
EagleBurgmann Germany GmbH & Co. KG, Wolfratshausen, DE;
Abstract
The invention relates to a mechanical seal arrangement comprising a mechanical seal () having a rotating seal ring () and a stationary seal ring () defining a seal gap () therebetween, a secondary seal () arranged on a back surface of one of the seal rings facing away from a sealing surface of the seal ring, the secondary seal () being made of a base material and having a coating () such that a material bond is formed between the coating () and the base material of the secondary seal, the secondary seal () being made of a base material and having a coating () such that a substance-to-substance connection is formed between the coating () and the base material of the secondary seal, a sleeve-shaped member () arranged radially inside the secondary seal (), wherein a gap () having a gap height (H) is present between the sleeve-shaped component () and a region of one of the sliding rings facing radially inwards, the secondary seal () seals 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 (), which first side facing the sliding ring, and a second side () of the secondary seal () which second side 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 (D) of the coating is smaller than or equal to a gap height (H) of the gap ().