Mechanical seal arrangement for high temperature applications
US12270474B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2021 |
| Grant date | Apr 8, 2025 |
| Priority date | — |
| Expiry date | Jun 19, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3496
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a mechanical seal arrangement (1) comprising a mechanical seal (2) having a rotating seal ring (3) with a first sealing surface (3a) and a stationary seal ring (4) with a second sealing surface (4a), a pre-tensioning device (6), to pre-tension one of the two sliding rings in the axial direction (X-X), a secondary sealing member (7) disposed on a rear side (40) of the axially pre-tensioned sliding ring, the pre-tensioning device (6) pre-tensioning the axially pre-tensioned sliding ring via the secondary sealing member (7), and a sleeve (8), which is arranged radially inside the secondary sealing member (7), the secondary sealing member (7) being arranged on the rear side (40) of the axially pre-tensioned sliding ring, the secondary sealing member (7) having a sealing edge (70) which is closed in an annular shape in the circumferential direction which projects from the secondary sealing member (7) in the axial direction (X-X) to the axially pre-tensioned sliding ring, wherein the sealing edge (70) seals against the rear side (40) of the axially pre-tensioned sliding ring, and wherein the secondary sealing member (7) further seals against the outer circumferen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.