Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1981-08-12
1983-11-22
Coe, Philip R.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416 95, 415115, F01D 508
Patent
active
044165854
ABSTRACT:
A hollow blade for a turbine in a gas turbine engine comprising passageways in the hollow blade for passing a coolant therethrough and pairs of ridges having a chevron shape and being segmented form a channel therebetween with corresponding pairs on opposed side walls of the passageway such that each corresponding opposed pair has the chevron angle open in opposite directions relative to the longitudinal direction of the passageway. In another embodiment the opposed pairs of ridges are in the same phase, that is with the angle open in the same direction.
REFERENCES:
patent: 2956773 (1960-10-01), French
patent: 3171631 (1965-03-01), Aspinwall
patent: 3628885 (1971-12-01), Sidenstick et al.
patent: 4236870 (1980-12-01), Hucul, Jr. et al.
patent: 4278400 (1981-07-01), Yamarik et al.
patent: 4302153 (1981-11-01), Tubbs
Coe Philip R.
Pratt & Whitney Aircraft of Canada Limited
Stinson Frankie L.
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