Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1997-07-21
1999-07-06
Verdier, Christopher
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
059190310
ABSTRACT:
A coolable blade (10) essentially comprises a blade root (11) and a blade body (1), which is composed of a pressure-side wall (6) and a suction-side wall (5). They are connected to one another essentially via a trailing-edge region (4) and a leading-edge region (3) in such a way that at least one hollow space (2) used as a cooling-fluid passage is formed, in which ribs (7) are arranged. At least one rib (7) is configured in such a way that it has an apex (9) and two legs (14, 15), the legs (14, 15) of the rib being bent at an acute angle (8) relative to a radial plane (13). It is especially advantageous to arrange these ribs in a hollow space of double triangular shape having acute-angled triangular points in the region of the leading edge and the trailing edge.
REFERENCES:
patent: 3806274 (1974-04-01), Moore
patent: 5403157 (1995-04-01), Moore
Hall Kenneth
Johnson Bruce
Weigand Bernhard
Wu Pey-Shey
Asea Brown Boveri AG
Verdier Christopher
Woo Richard
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