Runner of a pelton turbine

Details Runner of a pelton turbine Runner of a pelton turbine

F - Mech Eng,Light,Heat,Weapons

03

B

F03B 1/02 (2006.01)

Patent

CA 2275103

In a turbine wheel (1) for a Pelton turbine with a number of buckets (3) arranged on a disc-shaped wheel (2) and consisting of a bucket root (4) formed in one piece with the disc-shaped wheel (2) and a bucket body (8, 9) made of several pieces, it is arranged that each bucket root (4) is provided with a peripherally level frontal surface (6) and on both sides with a radially level side surface (13), that the separately manufactured bucket bodies (5, 8, 9) are made in 3 parts, that the middle section (8) of the bucket body has a level frontal surface (11) and two level side surfaces (10), that the bucket body is connected via its side surface (11) with the peripherally level frontal surface (6) of the same width as the bucket root (4), and that the lateral sections (9) are connected with the side surface (10) of the middle section (8) as well as with the associated radially level side surface (13) of the bucket root (4), which means that turbine wheels (1) of large dimensions can be made, achieving an extremely strong, highly stress-resistant area of connection between the bucket roots (4) and the disc-shaped wheel (2) in a cost-effective manner.

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