Hamilton Sundstrand Corporation

Otis Elevator Company

Raytheon Technologies Corporation

Rtx Corporation

Larry Hardin

Joseph Brent Staubach

Zissis A Dardas

Jonathan Rheaume

Charles E Lents

Jean Yamanis

Mallika Gummalla

Arindam Dasgupta

Benoit Olsommer

Robert Bayt

Hari Srinivasan

Andreas Stuffel

Goldino Alves

Carl Q Howard

Goldino S Alves

A gas turbine engine includes a core having a compressor section with a first compressor and a second compressor, a turbine section with a first turbine and a second turbine, and a primary flowpath fluidly connecting the compressor section and the turbine section. The first compressor is connected to the first turbine via a first shaft, the second compressor is connected to the second turbine via a second shaft, and a motor is connected to the first shaft such that rotational energy generated by the motor is translated to the first shaft. The gas turbine engine includes a takeoff mode of operation, a top of climb mode of operation, and at least one additional mode of operation. The gas turbine engine is undersized relative to a thrust requirement in at least one of the takeoff mode of operation and the top of climb mode of operation, and a controller is configured to control the mode of operation of the gas turbine engine.

Descent operation for an aircraft parallel hybrid gas turbine engine propulsion system

Descent operation for an aircraft parallel hybrid gas turbine electric propulsion system

A power system for an aircraft includes a solid oxide fuel cell system which generates electric power for the aircraft and an exhaust stream; and a heat exchanger for transferring heat from the exhaust stream of the solid oxide fuel cell to a heat requiring system or component of the aircraft. The heat can be transferred to fuel for the primary engine of the aircraft. Further, the same fuel can be used to power both the primary engine and the SOFC. A heat exchanger is positioned to cool reformate before feeding to the fuel cell. SOFC exhaust is treated and used as inerting gas. Finally, oxidant to the SOFC can be obtained from the aircraft cabin, or exterior, or both.

Jet fuel based high pressure solid oxide fuel cell system

A device () for reducing noise levels in passenger conveyor systems () at least partially obstructs spacing () at the interface between two steps () to allow for relative movement between one step and the next. A sound transmission reducing member () at least partially obstructs a sound pathway that includes the spacing to reduce the transmission of noise through the spacing. The sound transmission reducing member in one example is a barrier that partially blocks the interface, while in another, it extends completely across the interface. Additionally, sound absorbing material () may be secured to the underside of the steps in order to further reduce sound transmission toward the passengers and individuals near the conveyer.

Device to reduce noise transmission through the gap between escalator steps

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East Hartford, CT, United States of America

Larry Hardin