Fuel supply circuit for a combustion chamber of a turbomachine
By introducing a coaxial inner conduit and an outer annular valley fuel flow distribution device into the fuel supply circuit, the problem of high-pressure pump performance degradation caused by uneven fuel flow mixing is solved, achieving fuel flow stability and extending the life of the high-pressure pump, simplifying the installation process and reducing costs.
CN116324142BActive Publication Date: 2026-06-23SAFRAN AIRCRAFT ENGINES SAS
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SAFRAN AIRCRAFT ENGINES SAS
- Filing Date
- 2021-10-05
- Publication Date
- 2026-06-23
Smart Images
Figure CN116324142B_ABST
Abstract
The invention relates to a fuel supply circuit (1) comprising a supply channel (20) enabling the circulation of a first flow (F1), at least one supply pump (3, 5) for the circulation of fuel from a tank (2) towards a metering unit (6), a recirculation channel (60) for a second flow (F2) upstream of the pump (5), wherein the channels (20, 60) open in different directions (D1, D2) upstream of the pump (5), the circuit (1) comprising a distribution device (8) comprising an inner duct (800) for the flow of the first flow (F1), an outer valley (820) for the flow of the second flow (F2) and at least one orifice (810) for the passage of the second flow (F2), the at least one orifice being in fluid communication with the valley (820) and the at least one orifice (810) and the inner duct (800) being coaxial and respectively opening upstream of the pump (5).
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