| 摘要 |
<p>A vehicle headlamp cleaning system has an electric pump for supplying cleaning liquid under pressure to a jet assembly mounted adjacent a headlamp (24) on, for example, a bumper (30). The jet assembly includes a spray nozzle (23) for producing a planar spray (35) of cleaning liquid which impinges on the headlamp (24) in the form of a narrow band (36), and a liquid-pressure operable arrangement for moving the nozzle such that the narrow band of liquid traverses the headlamp. In one example, the nozzle is angularly displaced. In another example, the nozzle is carried linearly over the headlamp and may have a wiper device attached thereto. The jet assembly may be mounted in an over-rider and the system may include liquid conserving features such as a pressure-responsive valve and a timing unit for controlling energisation of the pump. <IMAGE></p> |
