General Electric Company

Abhishek Chowdhury

Guido Felice Forte, Jr

Senthil Kumar Vasudevan

A steam turbomachine valve includes a valve body having an inlet portion, an outlet portion, and an interior portion. The interior portion includes an inner wall. A valve member is slidingly disposed within the interior portion of the valve body. The valve member includes an outer surface. A seal element is mounted to, and extends about, the outer surface of the valve member. The seal element is spaced from the inner wall by a gap. A seal assembly is mounted to the inner wall. The seal assembly spans the gap and is configured and disposed to contact the seal element of the valve member.

Steam turbomachine valve having a valve member and seal assembly

A poppet element of a valve is provided. The poppet element is movable relative to a valve seat of the valve and includes a balance chamber wall defining a balance chamber with a center body partially fixed relative to the valve seat, an upper head, a balance chamber holder having a coefficient of thermal expansion (CTE) that is matched with that of the upper head and a fastening element disposed to fasten the balance chamber holder to the upper head. The balance chamber holder is disposed between the center body and the balance chamber wall and configured to prevent thermal loading transfer from the balance chamber wall to the fastening element.

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Karnataka, India

Abhishek Chowdhury