SYSTEM AND METHOD FOR OPERATING A MULTI-MOTOR SYSTEM
DE602022037466T2Active Publication Date: 2026-05-27PRATT & WHITNEY CANADA CORP
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Patent Information
- Application Number
- DE602022037466
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-12-02
- Filing Date
- 2022-12-02
- Publication Date
- 2026-05-27
- Estimated Expiration
- 2042-12-02
AI Technical Summary
Technical Problem
Existing multi-engine systems in helicopters face undesirable dynamic vibrations due to turboshaft engines rotating within a placarded zone during transient phases, which existing deceleration systems fail to adequately address.
Method used
A method and system that control the rotation speeds of turboshaft engines by increasing or decreasing fuel flow to maintain one engine above the placarded zone while unclutching the other, preventing unwanted vibrations by synchronizing rotation speeds through a controller and clutch system.
Benefits of technology
Prevents turboshaft engines from dwelling in the placarded zone, thereby avoiding undesirable vibrations and ensuring smooth transitions between operational regimes.
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