General Electric Company

Nuovo Pignone Spa

Nuovo Pignone Holding S.p.a.

Mario Pecchioli

Anthony John Dean

Gregory Scot Corman

Leonardo Tognarelli

Dino Bianchi

Convex sealing bottom () for a twin-shaft turbine of the type comprising a series of convex disks constrained to each other by means of a series of pins, each disk of said disks comprises an outer shaped edge which is engaged with a corresponding annular surface () of an inner grooved surface () of a ring () for obtaining an axial seal. The series of disks comprises three disks, a first disk (), a second disk () and a third disk () respectively. The three disks are fixed to each other centrally by means of a series of spokes () and are constrained in pairs respectively by means of a series of pins which are arranged orthogonally to the three disks to minimize the relative movements of the three disks in an axial direction at the same time allowing the radial dilatations of the three disks themselves.

Convex sealing bottom for a twin-shaft turbine

A structure for attaching together or sealing a space between a first component and a second component that have different rates or amounts of dimensional change upon being exposed to temperatures other than ambient temperature. The structure comprises a first attachment structure associated with the first component that slidably engages a second attachment structure associated with the second component, thereby allowing for an independent floating movement of the second component relative to the first component. The structure can comprise split rings, laminar rings, or multiple split rings.

Structures for attaching or sealing a space between components having different coefficients or rates of thermal expansion

An easy-fit heat screening device () for connecting a cooling pipe () and a through-hole () formed in a nozzle support ring () of a gas turbine, of the type comprising a tubular structure () which has an external diameter smaller than a diameter of the through-hole () and into which the cooling pipe () extends; this tubular structure () has at the top a shaped annular end () which is inserted inside a groove () formed in the through-hole ().

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Prato, Italy

Mario Pecchioli