Patent · US Expired

Platform cooling in turbomachines

US6309175A · kind A · utility

16Cited by

4References

5Claims

0Family size

Assignee

ABB Alstom Power (Schweiz) · CH

Inventors

Hartmut Hähnle · Lüdenscheid, DE
Kenneth B. Hall · Gainesville, US
Sriwickrama Prithiviraj Harasgama · Künten, CH
Konrad Vogeler · Waldshut-Tiengen, DE

Key dates

Filing date	Dec 8, 1999
Grant date	Oct 30, 2001
Priority date	—
Expiry date	Dec 8, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2240/81
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The arrangements according to the invention and the method according to the invention serve to cool platforms in turbomachines. To this end, in two platforms 210, 210' arranged directly next to one another and having a separating gap 211 running between the platforms, at least one cooling passage 230 is arranged along the separating gap 211. In this case, the cooling passage 230 runs approximately parallel to the surface of the platforms 210, 210'. The cooling passage 230 is preferably designed as a slit-like recess in at least one side wall adjacent to the separating gap 211. If blades 220, 220' are arranged on the platforms 210, 210', the cooling passage 230 expediently runs approximately centrally between the blades. In addition, the cooling passage 230 preferably has a course similar to the course of the blade profile.

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