Turbine blade wheel assembly with rotor blades fixed to the roto

Details Turbine blade wheel assembly with rotor blades fixed to the roto Turbine blade wheel assembly with rotor blades fixed to the roto

1997-01-24

1998-05-12

Verdier, Christopher

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade received in well or slot

29512, 2952506, 2988921, F01D 532

Patent

active

057497060

ABSTRACT:
Rotor blades (1) are held by means of toothed roots (3) in correspondingly profiled axial grooves (4) of a rotor wheel rim (5). Between each root end and the base of an axial groove (4), there is formed a radial gap (S) accommodating a rivet (6). Each rivet (6) is centrally guided on two inserts (9, 9') resting against the base of the axial groove (4) in the radial gap (S) and having bent or angled end parts (10, 10') resting against the front and rear faces of the wheel rim (5). Seating wedges (11, 11') surround the upset head (8) and the set head (7) of the rivet (6) and are axially and radially clamped to wedge-shaped complementary surfaces (G, G') of the root end and of the respective insert (9, 9') by riveting. As a result, an improved radial and axial clamping of the rotor blades is achieved.

REFERENCES:
patent: 2753149 (1956-07-01), Kurti
patent: 2971744 (1961-02-01), Szydlowski
patent: 2980395 (1961-04-01), Rubbra et al.
patent: 3395891 (1968-08-01), Burge et al.
patent: 3666376 (1972-05-01), Damlis
patent: 4029436 (1977-06-01), Shoup, Jr. et al.
patent: 4191509 (1980-03-01), Leonardi
patent: 4279572 (1981-07-01), Auriemma
patent: 4343594 (1982-08-01), Perry
patent: 4505640 (1985-03-01), Hsing et al.
patent: 5651172 (1997-07-01), Auriol et al.

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