Patent · US Active

Steam turbine stage measurement system and a method

US10267178B2 · kind B2 · utility

0Cited by

7References

20Claims

0Family size

Assignee

General Electric Company · US

Inventors

Rolf Doebler · Mannheim, DE
Michaela Ehrich · Mannheim, DE
Thomas Schreier · Baden, CH
Steffen Lehmann · Ettlingen, DE

Key dates

Filing date	Sep 2, 2016
Grant date	Apr 23, 2019
Priority date	—
Expiry date	Mar 3, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01B7/14
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Embodiments of the present invention relate to the calculation of an absolute and relative axial displacement in a steam turbine between a stationary vane row and a rotating blade row steam turbine. This is achieved by using a measurement signal of an outer casing absolute axial expansion sensor, a measurement signal of an inner to outer casing differential axial expansion sensor and a measurement signal for a rotor to outer casing differential axial expansion sensor.

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