| 摘要 |
A screen element (100) for a fuel system (10, Fig 1) includes a first screen (102) and a second screen (102B). The first screen defines a first aperture (108) and the second screen defines a second aperture (108B). The first aperture and the second aperture are arranged out of circumferential alignment with one another such that a tortuous flow path (T) is defined through the apertures for capturing particles smaller than the apertures in a collection cavity (120, Fig 4) defined between the screens. The screen element may be provided in a fuel system that includes a voltage source and ground terminals (122, 124 Fig 4) for connecting the screen element to a power source resistively heating the screen element and reducing the size of ice particles urged against the screen element by fluid traversing the screen element. Advantageously the screen element can provide a robust, simple, and lightweight device for prevention of ice particle accretion and/or occlusion of fuel system components, especially in aircraft. |
