Siemens Energy, Inc.

General Railway Signal Corporation

Keith J Gordon

Yevgeniy P Shteyman

Charles M Eggebrecht

George E Ludwick

Michael Whitty

Cristina Cook

Jeffrey D Kesten

A sealing arrangement for a gas turbine including exhaust and manifold diffusers separated by a circumferential diffuser gap. The sealing arrangement includes a forward clamp arrangement attached to the exhaust diffuser wherein the forward clamp arrangement includes a forward groove. The sealing arrangement also includes an aft clamp arrangement attached to manifold diffuser wherein the aft clamp arrangement includes an aft groove. Further, the sealing arrangement includes a flexible circumferential seal including forward and aft loop portions. The forward loop portion is located in the forward groove and the aft loop portion is located in the aft groove wherein the circumferential seal extends across the circumferential diffuser gap to seal the circumferential diffuser gap. The forward and aft loop portions are moveable in the forward and aft grooves to enable movement of the circumferential seal in a circumferential direction to accommodate thermal expansion of the exhaust and manifold diffusers.

Moveable sealing arrangement for a gas turbine diffuser gap

A switch machine for railroad tracks is provided having a low vertical profile without increasing the axial length of existing switch machines. Also, the capability of being operated by an electric motor, hand crank or hand throw operation has been retained within these new dimensional constraints. A particular electric motor and gearbox combination permits a low overall profile due to its compact size. A worm gear shaft serves the dual purpose of driving a worm wheel and coupling to a hand crank, thus maintaining the low profile while increasing the functionality of the shaft. In addition, a hand throw drive shaft is provided adjacent to a crank drive shaft in order to provide a hand throw operation while further maintaining the low profile of the switch machine.

Low profile switch machine with hand throw or motor throw selector device

Growing community of inventors

West Palm Beach, FL, United States of America

Keith J Gordon