Cooling arrangement

Details Cooling arrangement Cooling arrangement

2005-02-28

2008-08-05

Look, Edward (Department: 3745)

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

C416S09700R

Reexamination Certificate

active

07407365

ABSTRACT:
The present invention relates to a cooling arrangement in which a fractal passage network is provided incorporating several passage stages. Each passage stage4, 5, 6, 7has substantially the same passage cross-section for consistency with other passage stages to facilitate flow pressure control across the fractal passage network. Normally, the length of passages in each passage stage are also specifically determined in order to achieve a consistent flow pressure control. The arrangement is particularly utilized with regard to cooling within turbine engine components such as blade aerofoils.

REFERENCES:
patent: 4118145 (1978-10-01), Stahl
patent: 4137619 (1979-02-01), Beltran et al.
patent: 4179240 (1979-12-01), Kothmann
patent: 4529357 (1985-07-01), Holland
patent: 5122033 (1992-06-01), Paul
patent: 6932571 (2005-08-01), Cunha et al.
patent: 2002/0080563 (2002-06-01), Pence et al.
patent: WO 01/95688 (2001-12-01), None

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