Mechanical seal
US11221074B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2018 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Sep 19, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/38
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The purpose of the present invention is to provide a mechanical seal in which a stationary-side sealing ring can follow the movement of a rotating-side sealing ring to provide reliable sealing properties and by which the entire device can be made compact.A mechanical seal in which a rotating-side sealing ring 13 attached to a shaft 2 and a stationary-side sealing ring 21 attached to a housing 3 slide relative to each other and seal between the housing 3 and the shaft 2 includes a case 22 which is attached to the housing 3 and which contains the stationary-side sealing ring 21, and a seal member 23 which is disposed between the case 22 and the stationary-side sealing ring 21, and the case 22 includes a holding part 22d which regulates the seal member 23 from moving to both sides in the axial direction thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.