Drag reduction device for tractor-trailers
US4688841A · kind A · utility
77Cited by
3References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jun 10, 1986 |
| Grant date | Aug 25, 1987 |
| Priority date | — |
| Expiry date | Jun 10, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D35/001
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A device for reducing air drag on highway vehicles includes a fabric enclosure mounted on the rear end of the vehicle which is self-inflated by a pressure differential between the outer and inner surfaces of the fabric enclosure created by the forward movement of the vehicle. The enclosure includes an inner flat fabric web and an outer shaped fabric web in a frame which is removably secured to the vehicle by mounting pins extending through hingedly mounted angles. The device may also be mounted on the rear of the forward trailer of a tandem trailer or behind the cab of a tractor-trailer having a cab mounted fairing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.