THERMAL SHOCK REDUCER FOR HEAT EXCHANGERS
DE602019085373T2Active Publication Date: 2026-06-03HAMILTON SUNDSTRAND CORP
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Patent Information
- Application Number
- DE602019085373
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-04-02
- Filing Date
- 2019-12-03
- Publication Date
- 2026-06-03
- Estimated Expiration
- 2039-12-03
AI Technical Summary
Technical Problem
Direct exposure of heat exchangers to high-temperature air in gas turbine engines causes thermal shock, leading to premature fatigue and reduced useful life due to mismatched thermal expansion rates among parts.
Method used
Conditioned air is mixed with hot air upstream of the heat exchanger to reduce thermal shock by gradually equalizing temperature before entry, using a Venturi feature to mix without additional fans or pumps, and controlled by temperature sensors or mechanical devices to manage thermal expansion.
Benefits of technology
Reduces peak thermal stress and part fatigue, extending the heat exchanger's service life by ensuring more uniform thermal expansion and reducing leakage.
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