System and method for controlling ductless engine

A ductless, rotary engine technology used in engine manufacturing, engine components, engine control, etc.

Pending Publication Date: 2021-04-16
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, counter-rotating rotor assemblies present technical challenges in transmitting power from the power turbine to drive the buckets of the rotor assembly rotating in the opposite direction

Method used

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  • System and method for controlling ductless engine
  • System and method for controlling ductless engine
  • System and method for controlling ductless engine

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Embodiment Construction

[0071] Reference will now be made in detail to present embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. The same or similar symbols are used in the drawings and descriptions to refer to the same or similar components of the present invention.

[0072] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0073] As used herein, the terms "first", "second" and "third" are used interchangeably to distinguish one component from another and are not intended to indicate the position or importance of the various components.

[0074] The terms "forward" and "aft" refer to relative positions within the gas turbine engine or vehicle, and to the ...

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Abstract

A computing system is provided for a ductless rotor engine having a variable pitch stator blade assembly in aerodynamic relationship with the ductless rotor assembly. The computing system includes a sensor-based controller configured to perform a first set of operations. The first set of operations includes: obtaining a first signal corresponding to a commanded low axis of rotation speed; obtaining a second signal indicative of a pitch angle corresponding to a thrust output from the unducted rotor assembly and the variable pitch stator blade assembly; generating a pitch feedback signal corresponding to a commanded adjustment of the pitch angle based at least on one or both of the variable blade pitch angle or the variable stator blade pitch angle. The computing system also includes a model-based controller configured to perform a second set of operations. The second set of operations includes: obtaining a desired thrust output via the accelerator input; determining a commanded thrust output signal via at least the power management block; receiving a command thrust output signal; and generating an output signal.

Description

[0001] Cross References to Related Applications [0002] This application is a non-provisional application claiming the benefit of priority under 35 U.S.C. § 119(e) of U.S. Provisional Application No. 62 / 915,364, filed October 15, 2019, which is incorporated herein by reference in its entirety . technical field [0003] The present application relates generally to turbine engines, including architectures for such engines and methods for operating such engines. Background technique [0004] Turbofan engines operate on the principle that a central gas turbine core drives a bypass fan located at a radial position between the engine's nacelle and the engine core. With this configuration, the engine is generally limited in the allowable size of the bypass fan, since increasing the fan size correspondingly increases the size and weight of the nacelle. [0005] In contrast, open rotor engines operate on the principle of locating the bypass fan outside the engine nacelle. This a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/28F02C9/48F01D17/12F01D17/10
CPCF01D15/10F01D15/12F02C3/113F02C6/20F02C7/32F02C7/36F02K3/06F02K5/00F05D2220/325F05D2220/76F05D2240/60F05D2260/4023F05D2260/4031Y02T50/60B32B7/022B32B2307/558B32B2307/72B32B2307/732B32B2571/02B32B2605/18B64C1/12B64C1/38B64C2001/0072B64D27/12B64D45/00F01D5/146F01D5/187F01D5/30F01D5/3007F01D7/00F01D9/041F01D17/162F01D25/12F02C6/206F02C7/264F02C9/00F02C9/22F02K1/66F02K1/76F05D2220/323F05D2230/60F05D2240/12F05D2240/24F05D2250/37F05D2260/201F05D2260/30F05D2260/70F05D2270/05F05D2270/051F05D2270/121F05D2270/304F05D2270/71F05D2270/81
Inventor S·阿迪巴特拉S·卡法罗R·麦奎斯顿
Owner GENERAL ELECTRIC CO
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