Patent · US Active

Inner casing cooling passage for double flow turbine

US10677092B2 · kind B2 · utility

0Cited by

8References

20Claims

0Family size

Assignee

General Electric Company · US

Inventors

Rolf Döbler · Schriesheim, DE
Paolo Capozzi · Nussbaumen, CH
Andrzej Konieczny · Ennetbaden, CH

Key dates

Filing date	Oct 26, 2018
Grant date	Jun 9, 2020
Priority date	—
Expiry date	Dec 5, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2260/2322
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A turbomachine structure having a first inner casing including a first and second flowpath oriented in opposing axial directions to one another; a second inner casing surrounding the first inner casing and including a third and fourth flowpath, wherein the third flowpath is fluidly connected to the first flowpath and the fourth flowpath is fluidly connected to the second flowpath; an extraction chamber defined between the first and second inner casings; a cooling passage defined between the first and second inner casings; a first extraction port fluidly connected to the cooling passage and to the first flowpath at a location in the first flowpath having a first pressure; and a second extraction port fluidly connected to the extraction chamber and to the second flowpath at a location in the second flowpath having a second pressure less than the first pressure.

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