Tire monitoring device air breathing tube

摘要

A tire monitoring device includes a housing mounted within a cavity of a tire/wheel assembly. A sensor within the housing senses a condition within the cavity via an open passage in the housing. A hollow first tube extends away from the housing coaxial to an axis of the open passage. The first tube has an internal bore aligned with the open passage, and includes: a first tubular portion having a first cross sectional width; and a second tubular portion having a second cross sectional width smaller than the first cross sectional width. The second tubular portion further has a free end opening positioned in the cavity above a level of a liquid present in the cavity when the tire monitoring device is positioned at a lowest point in the cavity. The opening has a cross sectional width sized to prevent entrance of the liquid past the opening.

主权项

1. A tire monitoring device, comprising:
a housing mounted within a cavity of a tire/wheel assembly; a sensor positioned within the housing adapted to sense a condition within the cavity of the tire/wheel assembly via an open passage created in the housing; a hollow linearly extending breathing tube connected to the housing having an internal bore aligned with the open passage, the breathing tube including an opening at a free end, the opening sized to prevent entrance of a liquid present in the cavity from entering the opening.