General Electric Company

Hydril USA Distribution LLC

Ranjit Kumar Jangili

Farhat Shaikh

Dinesh Venugopal Setty

Richard Lynn Loud

Gregory Jay Myers

James Hunziker

A system for coupling a first pipe segment to a second pipe segment includes a pin coupled to the first pipe segment, the pin having a first outer diameter and a second outer diameter, the second outer diameter forming a recess along at least a portion of the pin. The system also includes a box coupled to the second pipe segment, the box having an opening, the opening receiving at least a portion of the pin, wherein at least a portion of a wall of the opening includes threads. The system further includes a rotating threaded collar arranged within the recess, at least a portion of the rotating threaded collar including mating threads configured to engage the threads of the box, wherein the rotating threaded collar is rotatable about the pin.

System and method for threaded riser auxiliary lines

Methods and devices for increasing the sound attenuation properties of a noise suppression device are provided. Various embodiments include sound-attenuating cavities with improved sound capturing openings. In some embodiments, the sound capturing openings include holes surrounded by projections. In other embodiments, the sound capturing openings include angled slats. Embodiments also include sound capturing devices that include the improved sound capturing openings, such as silencers, vent hoods, barrier walls, air exchanges, and air intake and exhaust ducts.

Sound attenuation systems and methods

Methods and devices for increasing the sound attenuation properties of a noise suppression device are provided. In some embodiments, a sound attenuating conduit has an improved shape that provides increased sound attenuation properties. In other embodiments, the sound attenuating conduits are stacked together, and shaped to increase the air flow cross-section. Still other embodiments provide machinery that includes the improved sound attenuating conduits.

A propeller is mounted aft of the rear rotor supporting bearing of a gas turbine. The propeller is driven either by the rotor shaft or by the exhaust gases flowing through the exhaust frame of the turbine. The rotating propeller blows cooling air on the rear bearing. The cooling air can then be circulated through the exhaust frame to cool the exhaust frame as well.

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Simpsonville, SC, United States of America

Ranjit Kumar Jangili