Societe Nationale D'etude Et De Construction De Moteurs D'aviation

Laurent Gille

Jacky S Naudet

Jean-Louis Charbonnel

Jean-Claude L Delonge

Guy Franck Dusserre-Telmon

Gerard R Vermont

Jean-Pierre Galivel

Thierry Henri Tassin

Jean-Christophe M Cordier

Didier M Nouveau

Michel J Hebert

Corrine G Delahaye

A device for ensuring the sealing in a rotary machine between a rotor and fixed blade stages. Blade edges are joined by rings carrying circular seals in slots. Springs force the seals in the longitudinal direction towards transverse faces of reinforcements of the rotor. A turbulence-free gas flow is obtained as a result of the total seal obtained by the seals (19). Moreover, the rotor can be constructed with a substantially rectilinear ferrule which only induces limited stress concentrations.

Sealing device between blade stages and a rotary drum, particularly for

A seal for a rotating shaft is disclosed which seals the shaft as it passes through a stationary partition wall. The seal has a segmented graphite sealing ring extending around the shaft located in an annular recess of a casing attached to the partition wall. A retaining ring having axial projections extending into radial grooves defined by the sealing ring is attached to the casing and a retaining washer extends circumferentially between the graphite segments and the retaining ring to prevent any relative axial movement between the elements. Relative rotation and axial movement between the retaining ring and the casing is prevented by stop pegs and a stop ring.

Seal for a rotating shaft

Growing community of inventors

Melun, France

Laurent Gille