A tubular vortex reducer and an aeroengine
By introducing damping plates and support ring structures into the tubular vortex reducer, the vibration problem of the tubular vortex reducer was solved, achieving more stable airflow guidance and efficient cooling, thus enhancing the overall performance of the aero-engine.
CN122106948APending Publication Date: 2026-05-29AECC COMML AIRCRAFT ENGINE CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- AECC COMML AIRCRAFT ENGINE CO LTD
- Filing Date
- 2024-11-28
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
Existing tubular vortex reducers are prone to vibration during compressor operation, leading to unstable drag reduction effects and affecting cooling efficiency and reliability.
Method used
A tubular vortex damper was designed, which adopts a damping plate and support ring structure. Through the connection and support of the damping plate, the vibration of the vortex damping tube is suppressed, forming a ring-shaped damping structure to counteract the vibration.
Benefits of technology
It effectively suppressed the vibration of the vortex tube, improved structural stability and drag reduction effect, enhanced cooling efficiency and reliability, and reduced airflow pressure loss.
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Smart Images
Figure CN122106948A_ABST
Abstract
The application discloses a tubular vortex reducer and an aero-engine, and aims at weakening the vibration problem existing in the tubular vortex reducer, improving the stability and the drag reduction effect. The technical scheme is as follows: the tubular vortex reducer comprises a vortex reduction pipe, a support ring and a damping sheet. The vortex reduction pipe is arranged in the installation hole of the support ring and is fixed by a clamping ring, is used for guiding the airflow to flow to the shaft center from the air inlet hole on the first stage disc; the support ring is a hollow annular structure, is coaxial with the rotor disc, and is used for installing the vortex reduction pipe; the clamping ring is used for fixing the bottom of the vortex reduction pipe between the clamping ring and the support ring, and prevents the vortex reduction pipe from moving along the installation hole to the shaft center of the support ring; the damping sheet is a circular arc sheet structure, is sleeved into the top of the vortex reduction pipe during installation, the center of the damping sheet is provided with a circular hole with the same diameter as the outer cylindrical surface of the vortex reduction pipe, the radial position of the annular damping structure relative to the vortex reduction pipe is set by setting the circular arc radius of the damping sheet; and the fastener is used for fixing the support ring and connecting the damping sheet.
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