Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1999-02-26
2000-10-17
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
415115, F01D 518
Patent
active
061321745
ABSTRACT:
A turbine rotor blade comprises a shank portion, a tip portion and an airfoil. The airfoil has a pressure side wall and a suction side wall that are interconnected by a plurality of partition sidewalls, defining an internal cooling passageway within the airfoil. The internal cooling passageway includes at least one radial outflow passageway to direct a cooling medium flow from the shank portion towards the tip portion and at least one radial inflow passageway to direct a cooling medium flow from the tip portion towards the shank portion. A number of mixing ribs are disposed on the partition sidewalls within the radial outflow passageways so as to enhance the thermal mixing of the cooling medium flow, thereby producing improved heat transfer over a broad range of the Buoyancy number.
REFERENCES:
patent: 4514144 (1985-04-01), Lee
patent: 5472316 (1995-12-01), Taslim et al.
patent: 5536143 (1996-07-01), Jacala et al.
patent: 5695322 (1997-12-01), Jacobson et al.
patent: 5738493 (1998-04-01), Lee et al.
patent: 5924843 (1999-07-01), Staub et al.
Staub Fred Wolf
Willett Fred Thomas
General Electric Company
Look Edward K.
Patnode Patrick K.
Snyder Marvin
Woo Richard
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