Unlock instant, AI-driven research and patent intelligence for your innovation.

Heating system for use in a turbine engine and method of operating same

A technology for turbine engines and heating systems, applied in engine components, machines/engines, liquid fuel engines, etc., to solve problems such as reducing turbine efficiency

Inactive Publication Date: 2012-11-28
GENERAL ELECTRIC CO
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the clearance distance becomes excessive, the efficiency of the turbine can be significantly reduced as part of the heated gas flows through the blades instead of performing useful work

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Heating system for use in a turbine engine and method of operating same
  • Heating system for use in a turbine engine and method of operating same
  • Heating system for use in a turbine engine and method of operating same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0088] The example methods and systems described herein overcome at least some of the disadvantages of at least some known turbine engine systems by providing a heating system that heats the casing to facilitate thermal expansion of the casing. In addition, embodiments described herein include a control system that determines when the turbine engine is operating with a minimum clearance distance and thermally expands the compressor housing by heating the compressor housing such that the clearance distance is selectively selected during operation. to increase. By heating the compressor housing when the turbine engine is operating at a minimum clearance distance, the clearance distance designed into the turbine engine system can be reduced, thereby increasing the operating efficiency of the turbine engine.

[0089] figure 1 is a schematic diagram of an exemplary turbine engine system 10 including a heating system 12 . figure 2 is an enlarged cross-sectional view of an exempla...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A compressor heating system for use with a turbine engine is provided. The turbine engine includes a rotor assembly that is positioned within a compressor casing. The compressor casing heating system includes a heating assembly that is coupled to a compressor for selectively heating the compressor casing. A first sensor is configured to sense a rotational speed of the rotor assembly and to generate a signal indicative of the sensed rotor assembly speed. A controller is coupled to the first sensor and the heating assembly. The controller is configured to determine whether the turbine engine system is operating in a first operating mode based at least in part on the sensed rotor assembly speed, wherein during the first operating mode a minimum clearance distance is deformed between the rotor assembly and the compressor casing. The compressor casing of the turbine engine is heated to increase the clearance distance between the compressor casing and the rotor assembly, if the turbine engine is in the first operating mode.

Description

technical field [0001] The subject matter described herein relates generally to turbine engine systems, and more specifically, to heating systems for use in turbine engine systems. Background technique [0002] At least some known gas turbine engines include a combustor, a compressor coupled downstream of the combustor, a turbine, and a rotor assembly rotatably coupled between the compressor and the turbine. At least some known rotor assemblies include a rotor shaft, at least one rotor disk coupled to the rotor shaft, and a plurality of circumferentially spaced compressor blades coupled to each rotor disk. Each compressor blade includes an airfoil extending radially outward from the platform toward the compressor casing. [0003] During operation of at least some known turbines, a compressor compresses air, which is mixed with fuel and directed to a combustor. The mixture is then ignited, producing hot combustion gases, which are then directed to the turbine. The turbine ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/58F02C6/00
CPCF01D11/24
Inventor M.P.曼基肯蒂J.D.梅默
Owner GENERAL ELECTRIC CO