Class 60/39.282 - Torque sensor

Subclass of Class 60 - Power plants
Definition: Combinations wherein the means to sense a change in condition
No. of patents: 24
Last issue date: 07/12/2011

Number	Title	Issue Date
7975465	Hybrid engine accessory power system A system for generating accessory power from a gas turbine engine is provided by the present invention. The system includes an electronic control device for monitoring at least one parameter which provides information about an incipient change in power demand, a con...	07/12/2011
7280905	System and method for maximizing power output from an internal combustion engine A system 10 and method for maximizing power output from an internal combustion engine includes a control module 12, a motor power output measuring member 14, a microprocessor based digital computer 16, connections 18 between a cont...	10/09/2007
7051535	Turbine engine differential-pressure torque measurement system Applicant's Differential-Pressure Torque Measurement System generates the torque signal from a differential gas pressure measured across the power turbine. The gas pressure differential is measured by using two pressure taps, the first tap taking the pressure readin...	05/30/2006
6119446	Method for controlling gas turbine using fuzzy logic In a control of a gas turbine having a gas turbine engine, a fuel pump for supplying fuel to the gas turbine engine, a fuel valve, and a motor for driving the fuel pump, the motor or the fuel valve as a subject of control is controlled. (A) The difference...	09/19/2000
6070404	Gaseous fuel compression and control method A gaseous fuel compression and control system is disclosed which utilizes a helical flow compressor/turbine integrated with a permanent magnet motor/generator and driven by a torque controlling inverter to compress or expand gaseous fuels, precisely contr...	06/06/2000
5775090	Torque signal synthesis method and system for a gas turbine engine A torque signal synthesis method is provided to accommodate torque measurements for a gas turbine engine. The torque signal is synthesized from gas pressure sensed at an engine station. The synthesized torque signal may include a correction factor which a...	07/07/1998
5775089	Pressure signal synthesis method and system for a gas turbine engine A pressure signal synthesis method is provided to accommodate failure of a pressure sensor in a gas turbine engine. The pressure signal is synthesized from the torque produced by the engine, and further determined from the corrected speed of a gasifier ro...	07/07/1998
5315819	Power management system for turbine engines A power management system for turbine engines includes a plurality of switches, each allowing for engine speed and engine torque to be controlled together. The switches correspond to various modes of operation of the turbine engine. When a switch is selec...	05/31/1994
5299417	Apparatus for trimming autopilot commands An aircraft is maintained at a constant glide slope and air speed by trimming delta torque commands provided by an autopilot. Delta torque commands that change by more than twenty percent are trimmed automatically to maintain the constant glide angle and ...	04/05/1994
5188511	Helicopter anti-torque device direct pitch control The blade angle controlling pitch beam servo (26) of a helicopter tail rotor (22) is responsive to a main rotor torque signal (92) indicative of torque coupled to a helicopter main rotor (10) for providing torque compensation so that the helicopter airfra...	02/23/1993
5020316	Helicopter control with multiple schedule rotor speed decay anticipator The speed 54,56 of the free turbine 40 of a helicopter engine 22 is compared 134,138 with the speed 142,140 of the helicopter rotor 10 to indicate 106,108 a specific magnitude of autorotation and the deceleration 150 of the rotor above either one of two t...	06/04/1991
4998202	Helicopter, high rotor load speed enhancement A helicopter engine speed reference (66) is increased (113, 103-105) in response to heavy rotor loading (108). The reference speed is faded up (113, 104) at a rather rapid rate to 107% of rated speed (114). After a fixed time interval (118), reduced rotor...	03/05/1991
4693077	Closed-loop engine control with feedback torque error compensation A closed-loop engine control system is disclosed in which an engine is controlled to provide power to a load as a function of measured feedback torque. A programmable digital controller modifies the feedback torque by adding to it a synthesized correction...	09/15/1987
4644744	Control device for controlling an engine of a turbine power system having more than one engine A control device for controlling an engine of a turbine power system having more than one engine is disclosed. The control device includes a proportional-integral-differential (PID) controller based on power turbine speed and a signal representing the dif...	02/24/1987
4625510	Stress limiter apparatus for a gas turbine engine A stress limiter apparatus for a gas turbine engine (10) is disclosed. A proportional fuel fuel control (11) regulates the fuel flow (Wf) from a hydromechanical unit (36) based upon an error signal (E) representing the difference between a demanded speed ...	12/02/1986
4522025	Apparatus for controlling load distribution and speed of gas speed of gas turbine systems and particularly of gas turbine engines A device for controlling the load distribution and speed of gas turbine systems and particularly gas turbine engines comprising for each engine a fuel control unit having a proportionally acting speed governor and a master speed governor for a common outp...	06/11/1985
4522026	Power/torque limiter unit for free turbine type engines The disclosure teaches an improvement in a free turbine type engine which comprises a power limit unit. The unit includes a first sensor for measuring pressure at the turbine inlet, and a second sensor for measuring temperature at the turbine inlet. A thi...	06/11/1985
4445420	Power boost mechanism A power boost mechanism for converting pilot linear throttle input commands to rotary motion and providing amplification of output torque to an engine fuel control and having an output shaft adapted for connection to an engine power lever assembly. An inp...	05/01/1984
4421989	Power plant with a gas turbine for operation of a generator An electrical power plant with gas turbine plant operating with a fluidized bed combustion chamber and a gas turbine-driven electrical generator includes at least one device for rapidly influencing the speed of the generator upon synchronizing the generat...	12/20/1983
4286324	Prime mover fuel efficiency control system A system for determining and controlling the power being transmitted through a rotated shaft from a fuel-consuming engine, which includes a husk assembly associated with the shaft and providing electrical signals proportional to shaft torque, a tachometer...	08/25/1981
4124980	Multi-engine control system providing equalized torque for driving a common load An electronic control module comprising an operational amplifier used as a comparator senses the difference between the throttle settings of a master and slave engine as detected by a potentiometer associated with each engine's throttle control apparatus ...	11/14/1978
4062184	Cryogenic fuel evaporation in compressor of gas turbine A gas turbine engine having a compressor and a combustion chamber, a supply of liquid hydrogen, and means for injecting the hydrogen in a cryogenic state into the intake of the compressor or into the compressor one or more stages downstream from its intak...	12/13/1977
4008567	Torque control system A torque control system designed to economize on consumed fuel includes a source of motive power, a load and a transmission coupling the motive power to the load. A torque measuring device is attached to the output of the transmission and senses a torque ...	02/22/1977
3943371	Gas turbine power plant control apparatus including automatic load pickup A gas turbine power plant is provided with an industrial gas turbine which drives a generator coupled to a power system through a breaker. The turbine-generator plant is operated by a hybrid control system having digital function capability during sequenc...	03/09/1976

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Class 60/39.282 - Torque sensor