Fluid conduit with PTC fabric heating
AssigneeAirbus Operations GmbH
InventorsJuergen Meisiek, Torsten Maulitz
Life of this patent
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Abstract
Fluid conduit segments are provided that include, but are not limited to integrated heating systems for protection against freezing. To this effect PTC-fabric heating elements are provided that are integrated in the fluid conduit segments and that in the negative temperature range include, but are not limited to a PTC-temperature-dependent resistance. The heating system thus provides a higher output in the negative temperature range and a lower output in the positive temperature range, i.e., the heating limits itself until temperature equalization has been reached.
Claims17
A self-regulating fluid conduit system for an aircraft configured to protect against icing, the self-regulating fluid conduit system comprising:
- an elongated first self-regulating fluid conduit segment having a first segment end and a second segment end, the first self-regulating fluid conduit segment comprising:
- a first inner hose configured to conduct a fluid;
- and
- a first heating device comprising a first PTC-fabric heating element that is integrated in the first self-regulating fluid conduit segment and includes a first resistance that changes substantially linearly in a temperature range between negative 63° Celsius and positive 80° Celsius;
- wherein each one of the first segment end and the second segment end has a connection of the same type;
- and
- an elongated second self-regulating fluid conduit segment having a third segment end and a fourth segment end, the second self-regulating fluid conduit segment comprising:
- a second inner hose configured to conduct a fluid;
- and
- a second heating device comprising a second PTC-fabric heating element that is integrated in the second self-regulating fluid conduit segment and includes a second resistance that changes substantially linearly in the temperature range between negative 63° Celsius and positive 80° Celsius;
- wherein each one of the third segment end and the fourth segment end has a connection of the same type as the first segment end and the second segment end of the first self-regulating fluid conduit segment;
- and
- a connecting element configured to mechanically and electrically connect any one of the first segment end and the second segment end of the first self-regulating fluid conduit segment to any one of the third segment end and the fourth segment end of the second self-regulating fluid conduit segment.
Dependencies are inferred from the claim text.