The present device provides an in-pipe turbine generator having a conduit, a plurality of runner blades positioned within the conduit, and a pitch adjustment mechanism whereby the pitch of the runner blades may be varied. The pitch adjustment mechanism further includes pitch adjustment screws that are positioned on a tangential flat on the master pitch adjustment bevel gear. Rotation of the pitch adjustment screw rotates the master pitch adjustment bevel gear thereby rotating the blade hub gears...

In a gas turbine power generator system, when there is an increase in the demand of a user system, a battery system supplies a supplemental electric power which is given by adding an added electric power to a difference between a current output of the power generator and the increased demand. Because the supplemental electric power is greater than the difference between the current output of the generator and the increased demand by the added electric power, the load acting upon the gas turbine ...

An electrical assembly for use in various operating environments such as a casing of a combustion turbine 10 is provided. The assembly may include an electrical energy-harvesting device 51 disposed in a component within the casing of the turbine to convert a form of energy present within the casing to electrical energy. The harvesting device is configured to generate sufficient electrical power for powering one or more electrical devices therein without assistance from an external power source. ...

There are provided with a motor rotor (22) fixed to a turbine shaft (12) and rotating together with the turbine shaft, a motor stator (24) surrounding the motor rotor and fixed within a bearing housing (16), an inverted (26) converting a dc power into an ac power, and an inverter controller (28) controlling a frequency and a voltage of the ac power by the inverter. The inverter and the inverter controller are accommodated in a driver container (29), and are coupled to a compressor housing (20) b...

An engine power extraction control system controls the main propulsion engines and the electrical machines that are coupled thereto to supply an appropriate amount of aircraft thrust and electrical energy to the aircraft. The engines and electrical machines are also controlled so that the propulsion thrust that is generated is split between the various turbines in the main propulsion engines to maintain an adequate surge margin and to minimize residual thrust generation.

A microturbine engine that includes a compressor that is operable to provide a flow of compressed air. The compressed air flows through a recuperator where it is preheated before delivery to a combustor. The preheated compressed air mixes with a fuel and is combusted within the combustor to provide a flow of products of combustion. The flow of products of combustion pass through one or more turbines to drive the compressor and a synchronous generator. The synchronous generator is able to synchro...

A microturbine engine that includes a compressor that is operable to provide a flow of compressed air. The compressed air flows through a recuperator where it is preheated before delivery to a combustor. The preheated compressed air mixes with a fuel and is combusted within the combustor to provide a flow of products of combustion. The flow of products of combustion pass through one or more turbines to drive the compressor and a synchronous generator. The synchronous generator is able to synchro...

There is provided a micro power generating device. A compressor impeller and a turbine wheel are coupled to the ends of a rotating shaft. A cooler is provided for lowering a temperature of the compressed air from the compressor impeller. The compressed air is mixed with the fuel and combusted in a combustion chamber. An air foil thrust bearing for supporting the rotating shaft has a thrust collar coupled to the rotating shaft, as well as a pair of thrust discs located apart from the thrust colla...

An inside out generator disposed aft of the low-pressure turbine spool to generate power for the electrical demands of an aircraft system. The low-pressure turbine discharge flow is used to drive the power turbine, which is coupled to the generator. The generator is able to extract power at idle conditions of the aircraft engine from ducting the discharge through the inside out generator. The system eliminates the placement of a generator in the hot gas path of the discharge, and enables the inj...

A hydraulic turbine power generator mounted on a single shaft wherein the hydraulic turbine means includes a plurality of reaction type turbine stages arranged to be in combination, rotatably responsive to the hydraulic fluid coupled to the turbines. One of the turbine stages having axial turbine runner means mounted to the single shaft and having a plurality of adjustable blades for permitting the pitch of the blades to be adjusted for controlling the effective operative fluid head to cause the...