Tapered helical fuel distributor
a fuel distributor and helical technology, applied in the field of turbomachines, can solve problems such as streaky performance at high flows
Inactive Publication Date: 2019-06-20
DELAVAN
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- Description
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- Application Information
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Benefits of technology
This patent is about a fuel distributor system for a turbomachine fuel injector. The system includes multiple helical fuel flow channels between the fuel distributor and a shroud that surrounds it. These channels are designed to reduce the flow area from the inflow to the outflow. The helical channels are installed on the outer diameter of the fuel distributor and are isolated from each other by the shroud. The system also includes an upstream opening with a transition area to reduce pressure loss and facilitate fuel flow into the channels. Overall, this system improves fuel efficiency and reduces pressure drop in the injector, leading to better engine performance.
Problems solved by technology
This leads to low pressure fuel injection which can be problematic as low fuel flows and can lead to streaky performance at high flows, for example.
Method used
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[0020]Reference will now be made to the drawings wherein like reference numerals identify similar structural features or aspects of the subject disclosure. For purposes of explanation and illustration, and not limitation, an illustrative view of an embodiment of a fuel injector in accordance with the disclosure is shown in FIG. 1 and is designated generally by reference character 100. Other embodiments and / or aspects of this disclosure are shown in FIGS. 2-4C. The systems and methods described herein can be used to improve fuel distribution in turbomachine fuel injectors.
[0021]Referring to FIG. 1, an embodiment of a fuel injector 100 is shown having a first fuel distributor 101 system (e.g., which can be referred to as a primary fuel distributor system) and a second fuel distributor 103 (e.g., which can be referred to as a secondary fuel distributor system). Each fuel distributor system 101, 103 can include an annular body referred to as a fuel distributor and a second body surround...
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A fuel distributor system for a turbomachine fuel injector can include a plurality of helical fuel flow channels defined between a fuel distributor and a shroud that surrounds the fuel distributor. A wind axis of the helical flow channels is an axial axis of the fuel injector and each of the helical fuel flow channels include an upstream opening configured to be in fluid communication with a liquid fuel source and a downstream opening configured to effuse fuel therefrom. Each of the plurality of helical fuel flow channels can reduce in flow area from the upstream opening to the downstream opening.
Description
BACKGROUND1. Field[0001]The present disclosure relates to turbomachines, more specifically to fuel nozzles for turbomachines (e.g., industrial turbomachines).2. Description of Related Art[0002]Large fuel nozzles, e.g., those for industrial engines, require large diameter fuel distributors for low emissions performance. Large diameter distributors require a large number of fuel distribution slots for adequate liquid fuel distribution. Slots are required to be large enough to avoid contamination. This leads to low pressure fuel injection which can be problematic as low fuel flows and can lead to streaky performance at high flows, for example.[0003]Such conventional methods and systems have generally been considered satisfactory for their intended purpose. However, there is still a need in the art for improved fuel injector systems and components. The present disclosure provides a solution for this need.SUMMARY[0004]In accordance with at least one aspect of this disclosure, a fuel dist...
Claims
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Login to View More IPC IPC(8): F23R3/28
CPCF23R3/28F23R3/283F23R3/36
Inventor PROCIW, LEV ALEXANDERRYON, JASON A.GREENFIELD, JACOB
Owner DELAVAN