Aircraft fuel conditioning system including a purge circuit, associated purge method
The purge circuit for cryogenic fuel systems in aircraft turbomachines addresses fuel waste by storing and reusing purged fuel, improving operational safety and energy efficiency.
FR3162207B1Active Publication Date: 2026-05-29SAFRAN AIRCRAFT ENGINES SAS
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- SAFRAN AIRCRAFT ENGINES SAS
- Filing Date
- 2024-05-16
- Publication Date
- 2026-05-29
AI Technical Summary
Technical Problem
Existing fuel conditioning systems for cryogenic fuel in aircraft turbomachines waste significant amounts of fuel during purging, which is not environmentally friendly and affects profitability.
Method used
A purge circuit is introduced that includes a purge tank, filtration device, and supply branches to store and reuse purged fuel, allowing its reintroduction into the fuel circuit or consumption equipment, and optionally powers fuel-consuming devices independently.
Benefits of technology
Reduces fuel waste and enhances operational safety and energy efficiency by reusing purged fuel, minimizing environmental impact and optimizing energy use.
✦ Generated by Eureka AI based on patent content.
Smart Images
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Abstract
A fuel conditioning system (SC) supplying at least one aircraft turbomachine (T) with fuel (Q) from a cryogenic tank (RC), the conditioning system (SC) comprising a fuel circuit (CQ) connected inlet to the cryogenic tank (RC) and outlet to the turbomachine (T), a purge circuit (CP) comprising an inlet connected to a purge point (PP) and an outlet connected to an external environment (EXT) of the aircraft, the purge circuit (CP) comprising at least one purge tank (RP) configured to store the fuel flow present in the portion to be purged (PAP) during a purge and at least one supply branch (B1), connecting the purge tank (RP) to the fuel circuit (CQ) or to a fuel-consuming device. Abstract Figure: Figure 2
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