초록 ▼

An inflatable and extendable skirt for reducing the air drag caused by a moving motor vehicle such as a truck. The skirt is normally rolled up on itself and can be extended, as between parts of the vehicle, upon introduction of the compressed air into the pocket chambers secured to the skirt. The sk

An inflatable and extendable skirt for reducing the air drag caused by a moving motor vehicle such as a truck. The skirt is normally rolled up on itself and can be extended, as between parts of the vehicle, upon introduction of the compressed air into the pocket chambers secured to the skirt. The skirt can be inflated or deflated automatically when the motor vehicle passes a predetermined speed or whenever an operator feels it is beneficial to inflate or deflate one or a plurality of skirts.

대표청구항 ▼

An extendable skirt for a highway truck comprising; a resilient inelastic sheet having an edge secured to said truck, said sheet having a retracted position rolled up on itself about an axis parallel to said edge and a planar extended position; retraction means operatively associated with said sheet

An extendable skirt for a highway truck comprising; a resilient inelastic sheet having an edge secured to said truck, said sheet having a retracted position rolled up on itself about an axis parallel to said edge and a planar extended position; retraction means operatively associated with said sheet to cause said sheet to assume said retracted position in the absence of an extending force; elongated fluid pocket means disposed on said sheet perpendicular to said edge; a source of pressurized fluid associated with and powered by said vehicle, and selectively actuable control valve means connecting said pressurized fluid source with said elongated pocket means for causing said skirt to assume said extended position.