Hydrogen leak detection
AssigneeROLLS-ROYCE plc
InventorsSophie CHITTIM, James T J COULSON
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Abstract
A method of operating a hydraulic system of a hydrogen-fuelled engine, comprising: flowing a hydraulic liquid through a first flow path within a hydraulic liquid conduit, the hydraulic liquid comprising an unsaturated hydrocarbon; flowing the hydrogen fuel through a second flow path within a hydrogen fuel conduit in contact with the hydraulic liquid conduit towards the hydrogen-fuelled engine; measuring a physical property relating to a degree of hydrogenation of the hydraulic liquid; and determining a hydrogen leak from the first flow path to the second flow path from a change in the measured physical property.
Claims13
A method of operating a hydraulic system of a hydrogen-fuelled engine, comprising:
- flowing a hydraulic liquid through a first flow path within a hydraulic liquid conduit, the hydraulic liquid comprising an unsaturated hydrocarbon;
- flowing the hydrogen fuel through a second flow path within a hydrogen fuel conduit in contact with the hydraulic liquid conduit towards the hydrogen-fuelled engine;
- measuring a physical property relating to a degree of hydrogenation of the hydraulic liquid;
- and
- determining a hydrogen leak from the first flow path to the second flow path from a change in the measured physical property.
A hydraulic system for a hydrogen fuelled engine, the hydraulic system comprising:
- a hydraulic liquid conduit forming a first flow path for a hydraulic liquid;
- a hydrogen fuel conduit forming a second flow path for a hydrogen fuel,
- the hydrogen fuel conduit in contact with the hydraulic liquid conduit,
- the hydraulic liquid conduit comprising a sensor configured to measure a physical property relating to a degree of hydrogenation of the hydraulic liquid;
- and
- a controller connected to the sensor and configured to determine a hydrogen leak from the first flow path to the second flow path from a change in the measured physical property.
Dependencies are inferred from the claim text.