Invention Grant
- Patent Title: Dry gas seal with electronically controlled carrier load
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Application No.: US15980371Application Date: 2018-05-15
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Publication No.: US10677357B2Publication Date: 2020-06-09
- Inventor: Raphael Rouillon
- Applicant: John Crane UK Ltd.
- Applicant Address: GB Berkshire
- Assignee: JOHN CRANE UK LTD.
- Current Assignee: JOHN CRANE UK LTD.
- Current Assignee Address: GB Berkshire
- Agency: Cantor Colburn LLP
- Main IPC: F16J15/34
- IPC: F16J15/34

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.
Public/Granted literature
- US20180328494A1 DRY GAS SEAL WITH ELECTRONICALLY CONTROLLED CARRIER LOAD Public/Granted day:2018-11-15
Information query
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