Aeroengine and method for on-wing evaluation of blade tip clearance of aeroengine
A technology for aero-engines and compressors, applied in mechanical clearance measurement, machines/engines, liquid fuel engines, etc. It can solve problems such as the inability to understand the change of blade tip clearance and the difficulty in measuring rotor blade tips and casings
Active Publication Date: 2021-02-09
AECC SHANGHAI COMML AIRCRAFT ENGINE MFG CO LTD +1
View PDF6 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] However, in the existing field of aero-engines, it is difficult to measure the tip clearance between the rotor blade tip and the casing of the aero-engine during wing operation, and then it is impossible to understand the blade tip clearance during wing operation. changes in conditions
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] In order to facilitate understanding of the present invention, the following will be combined with the attached Figure 2-4 Preferred embodiments of the present invention are described in detail. It should be understood that what is shown in the drawings is only a preferred embodiment of the present invention, which is not intended to limit the scope of the present invention. Those skilled in the art can make various obvious modifications, variations, and equivalent replacements to the present invention on the basis of the embodiments shown in the drawings, and these all fall within the protection scope of the present invention.
[0035] figure 2 A partial cross-sectional view of a portion of the aeroengine of the present invention is shown. An aero-engine includes a compressor part, which is generally composed of a rotor and a stator, wherein the rotor refers to the general term of the parts that can rotate in the compressor part, and the stator refers to the genera...
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
Login to View More Abstract
The invention discloses a compressor part of an aeroengine. The compressor part comprises a rotor and a stator, wherein the rotor comprises rotor blades, the stator comprises a casing, and the inner surface of the casing is coated with an easy-to-wear coating. At least two grooves are formed in the blade tip of at least one of the rotor blades, and the depth of each groove is different from that of any other groove. At least two marking blocks are arranged at the part, facing the rotor blades, of the easy-to-wear coating, and the thickness of each marking block is different from that of any other marking block. A probe hole is further formed in the aeroengine, so that a monitoring device is allowed to extend into the aeroengine through the probe hole and is aligned to the areas of the marking blocks and the grooves to acquire images of the marking blocks and the grooves. The aeroengine with the structure is beneficial to the evaluation of the changing trend of the blade tip clearance and the guidance of subsequent optimization design. The invention further relates to a method for on-wing evaluation of the blade tip clearance of the aeroengine.
Description
technical field [0001] The present invention relates to the field of aero-engines, in particular to the design of blade structures such as rotor blades in compressors of aero-engines, and to a method for on-wing evaluation of the tip clearances of these blades. Background technique [0002] The aeroengine is an important part of the aircraft, which provides power for the flight of the aircraft. In the existing aero-engine structure, it generally includes a rotor part and a stator part, wherein the rotor part is a part, assembly, etc. that can rotate around a fixed axis in the aero-engine, and the stator part is a non-rotating part, assembly, etc. [0003] figure 1 A partial schematic diagram of an existing aero-engine structure is shown. In this adaptive structure, the aeroengine comprises a hub 1 and a casing 2 arranged around the hub 1 on the outside of the hub 1, and an air passage for the airflow A to flow through is defined between the hub 1 and the casing 2 5. The ...
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
Login to View More IPC IPC(8): F04D29/16F04D27/00G01B5/14G01N19/00G06T7/00
CPCF04D27/001F04D29/161G01B5/14G01N19/00G06T7/0002
Inventor 陆晓锋童辉秦文吴志青曹传军李继保
Owner AECC SHANGHAI COMML AIRCRAFT ENGINE MFG CO LTD