Systems and methods for reducing drag on a vehicle or vehicle combination

Patent metadata

Field	Value
Publication number	US-9308949-B1
Application number	US-201414273039-A
Country	US
Kind code	B1
Filing date	May 8, 2014
Priority date	May 8, 2013
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

A lead vehicle includes a chassis and front and rear wheel assemblies supportively coupled to the chassis. A trailer coupling interface is mounted to the chassis and is configured to couple to a tow vehicle. The lead vehicle further includes one or more seals cooperatively including first and second side leg sections positioned on the chassis laterally outwardly of the trailer coupling interface and a cross section positioned forwardly of the trailer coupling interface. The one or more seals are configured to form a barrier between the chassis and a portion of the tow vehicle.

First claim

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A lead vehicle, comprising:
a chassis;
front and rear wheel assemblies supportively coupled to the chassis;
a trailer coupling interface mounted to the chassis, the trailer coupling interface configured to couple to a tow vehicle;
one or more seals cooperatively including first and second side leg sections positioned on the chassis laterally outwardly of the trailer coupling interface and a cross section positioned forwardly of the trailer coupling interface, wherein the one or more seals are configured to form a barrier between the chassis and a portion of the tow vehicle.

2. The lead vehicle of claim 1 , wherein the first or second side leg section extends forwardly of the cross section.

3. The lead vehicle of claim 1 , wherein the one or more seals includes a material selected from the group consisting of rubber, a thermoplastic elastomer, and synthetic rubber.

4. The lead vehicle of claim 1 , wherein the one or more seals includes a bulb seal.

5. The lead vehicle of claim 4 , wherein the bulb seal has a height greater than about three inches.

6. The lead vehicle of claim 5 , wherein the bulb seal has a height of in the range of about five inches and about six inches.

7. The lead vehicle of claim 4 , wherein the bulb seal includes an fluid bladder.

8. The lead vehicle of claim 4 , wherein the bulb seal includes a sheet of natural or synthetic rubber rolled into a shaped having a generally circular cross-section, the ends of which being hermetically sealed.

9. The lead vehicle of claim 1 , further including
a deck plate mounted on the chassis and disposed generally horizontally thereacross;
left and right surfaces supported by the chassis and positioned adjacent the rear wheel assemblies, wherein the first and second side leg sections are mounted to the left and right surfaces, respectively, and the cross section is mounted to the deck plate.

10. The lead vehicle of claim 9 , wherein the deck plate and the left and right leg sections are contiguously connected.

11. A vehicle trailer, comprising:
a trailer body having a bottom wall;
rear wheel assemblies disposed in a supporting relationship with respect to the trailer body; and
left and right side fairings associated with the trailer body and positioned underneath the bottom wall of the trailer body and rearwardly of the rear wheel assemblies, wherein each of the side fairings includes an outwardly facing deflector surface that extends upwardly as it extends rearwardly.

12. The vehicle trailer of claim 11 , wherein the deflector surfaces extend inwardly and they extend rearwardly.

13. The vehicle trailer of claim 11 , wherein the first and second fairings are positioned on the left and right sides of the trailer body, the first and second fairings being pivotally mounted about spaced vertical axes.

14. The vehicle trailer of claim 11 , wherein the first and second fairings are pivotally movable between a slanted position in which the deflector surfaces extend inwardly and they extend rearwardly and a generally longitudinal position in which the deflector surfaces extend along the vehicle body.

15. The vehicle trailer of claim 14 , wherein the wheel assemblies are slidable, and wherein the generally longitudinal position allows the wheel assemblies to move rearwardly without interference with the first and second fairings.

16. The vehicle trailer of claim 15 , further including a rear bumper mounted a spaced distance below the bottom wall, wherein the ends of the first and second fairings interface with the rear bumper.

Assignees

• Mihelic Richard R
• Bezner Bruce
• Smith Jeffrey P
• Paccar Inc

Inventors

• Mihelic Richard R
• Bezner Bruce
• Smith Jeffrey P

Classifications

• B62D35/001 Primary

  For commercial vehicles or tractor-trailer combinations, e.g. caravans · CPC title