Patent · US Active

Sealing arrangement of a steam turbine in which a sealing liquid and a vapor steam extraction system are used

US9885246B2 · kind B2 · utility

1Cited by

18References

11Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Johan Flegler · Essen, DE
Thomas Helmis · Wetter (Ruhr), DE
Norbert Sürken · Neheim, DE

Key dates

Filing date	Jun 17, 2013
Grant date	Feb 6, 2018
Priority date	—
Expiry date	Oct 15, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16J15/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A sealing arrangement for a duct, through a stationary housing, of a shaft which rotates about an axis is provided, wherein a sealing liquid is used for sealing instead of sealing steam. The sealing arrangement includes a seal, having a vapor steam extraction system, and a feed line, which is arranged between the inner space and the vapor steam extraction system and is designed for supplying a sealing liquid, wherein a labyrinth seal, a brush seal with metallic bristles, a brush seal with bristles made of natural fibers and/or a brush seal made of synthetic fibers is provided for sealing off with respect to the inner space and the vapor steam extraction system.

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