Patent · US Active

Exhaust diffuser for a gas turbine

US10006309B2 · kind B2 · utility

1Cited by

5References

18Claims

0Family size

Assignee

ANSALDO ENERGIA IP UK LIMITED · GB

Inventors

Willy Heinz Hofmann · Baden, CH
Philipp Schaefer · Wattenscheid, DE

Key dates

Filing date	Sep 26, 2014
Grant date	Jun 26, 2018
Priority date	—
Expiry date	May 20, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2240/90
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An exhaust diffuser for a gas turbine includes an annular duct. A row of struts is arranged in the duct. In a region downstream of the trailing edges of the struts, the cross-sectional area of the duct decreases to a local minimum and then increases again towards the outlet end of the duct. Thereby the gas flow is locally accelerated downstream of the struts. This stabilizes the boundary layer of the flow in this region and leads to a marked increase in pressure recovery for a wide range of operating conditions.

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