Dry gas seal with electronically controlled carrier load
US10677357B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 2018 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Jun 18, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3492
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A mechanical seal assembly with an electronically controllable carrier load. The assembly includes a magnetic ring affixed to the carrier and driven by a solenoid. The solenoid can apply an axial force to the carrier. The carrier load can be controlled to prevent or reduce friction between the primary ring and mating ring in slow-roll running conditions by partially or completely compensating a spring force provided by a biasing mechanism. The carrier load can further be controlled to inhibit seal hang-up. In embodiments, desired the carrier load can be determined by rotational speed. In embodiments, carrier load can be determined based on sensor signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.