Streamlining apparatus for articulated road vehicle

Details Streamlining apparatus for articulated road vehicle Streamlining apparatus for articulated road vehicle

1976-03-17

1977-07-19

Peters, Jr., Joseph F.

Land vehicles: bodies and tops

Bodies

Accessories

105 2R, 296 91, B62D 3500

Patent

active

040365190

ABSTRACT:
An air inflated bag of flexible sheet material includes a front portion which is mounted on the body or cab of a vehicle such as a tractor hitched to a semi-trailer. A rear portion of the inflated bag extends between the cab and the trailer body to provide for a smooth non-turbulentflow of air around the cab and to the side and top walls of the trailer body for significantly reducing the aerodynamic drag on the tractor-trailer vehicle. The front portion of the bag is provided with a generally horizontal inlet which is located directly above the front windshield of the cab to direct a portion of the upward flow of air over the cab into the bag and thereby effect dynamic inflation of the bag at a predetermined road speed. The bag may be collapsed to a folded condition adjacent the cab for when the tractor is being driven without a trailer, and a bottom recess is formed within the rear portion of the bag to provide for extending service lines between the cab and the trailer. A low flow of air may be provided through the bag for supplying air to an air conditioning or refrigeration system, and the bag may be made adjustable for accommodating variations in the space between the cab and the trailer.

REFERENCES:
patent: 2737411 (1956-03-01), Potter
patent: 3697120 (1972-10-01), Saunders
patent: 3834752 (1974-09-01), Cook

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