Back to results
US 2022/0397478 A1Published application
Leak detection for pressurized fluid systems
AssigneePratt & Whitney Canada Corp.
InventorAntwan Shenouda
Life of this patent
Estimating the term…
Abstract
In accordance with at least one aspect of this disclosure, a fluid system of an aircraft includes a primary fluid conduit that conveys a primary fluid, and a leak detection system disposed around at least a portion of the primary fluid conduit and forming one or more detection volumes. The leak detection system determines whether there is a primary fluid leak into the one or more detection volumes by sensing a pressure change in the one or more detection volumes.
Claims20
A leak detection system, comprising:
- a leak detection module that operatively connects to one or more pressure sensors to receive signals from the one or more pressure sensors that sense pressure in a detection volume, the leak detection module operable to execute a method, the method comprising:
- determining or receiving a detection volume pressure based on the signals from the one or more pressure sensors;
- comparing the detection volume pressure to a primary leak threshold;
- and
- outputting a primary fluid leak signal to indicate a primary fluid leak of a primary fluid between a primary fluid path and the detection volume when the detection volume pressure exceeds the primary leak threshold.
2 more elements
A method for detecting a leak in a fuel system, comprising:
- determining or receiving a detection volume pressure based on signals from one or more pressure sensors;
- comparing the detection volume pressure to a primary fluid leak threshold;
- and
- outputting a primary fluid leak signal to indicate a primary fluid leak of a primary fluid between a primary fluid path and the detection volume if the detection volume pressure exceeds the primary leak threshold.
1 more element
A method for leak detection of a fluid system, comprising:
- pressurizing a primary fluid system to a primary fluid pressure;
- monitoring a detection volume pressure different from the primary fluid pressure;
- and
- wherein if the detection volume pressure increases above a primary fluid leak threshold, outputting a primary fluid leak signal, and wherein if the detection volume pressure decreases below a secondary fluid leak threshold, outputting a secondary fluid leak signal.
1 more element
Dependencies are inferred from the claim text.