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    • 2. 发明授权
    • Motor vehicle headlight
    • 汽车大灯
    • US4796163A
    • 1989-01-03
    • US938052
    • 1986-11-17
    • Helmut Dressler
    • Helmut Dressler
    • F21V31/03B60Q1/08
    • F21S48/335
    • A headlight for motor vehicles is provided with a unit for preventing fog formation on the internal walls of the headlight or its reflector. The unit can be interchangeable and includes an inlet valve for admitting air into the interior of the reflector when underpressure prevails in said interior and an overpressure-responsive outlet valve which permits air to flow out from said interior into the atmosphere when overpressure occurs in the interior of the reflector. The unit is filled with drying agent for adsorbing moisture from the passing air.
    • 机动车辆的前大灯设置有用于防止头灯或其反射器的内壁上的雾形成的单元。 该单元可以互换,并且包括入口阀,当在内部存在负压时允许空气进入反射器的内部,以及超压响应式出口阀,当内部发生超压时,允许空气从所述内部流出到大气中 的反射器。 该单元装有干燥剂,用于吸收通过的空气中的水分。