Patent · US Active

Abradable seal with axial offset

US9347459B2 · kind B2 · utility

1Cited by

10References

20Claims

0Family size

Assignee

NUOVO PIGNONE SPA · IT

Inventors

Nuo Sheng · Schenectady, US
Roderick Mark Lusted · Niskayuna, US
Vittorio Michelassi · Firenze, IT

Key dates

Filing date	Dec 7, 2010
Grant date	May 24, 2016
Priority date	—
Expiry date	Jul 11, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16J15/445
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A sealing system for a centrifugal compressor includes a stator having a seal, a seal disposed in the seal housing and having an abradable portion along an inner circumference, a rotor having a plurality of rotor teeth configured to rotate within the inner circumference of the seal and configured to create rub grooves within the abradable portion, and a first spring disposed between the stator and the seal and configured to facilitate axial movement of the seal relative to the seal housing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.