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특허 상세정보

Aerodynamic combination for improved base drag reduction

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B60J-001/00   
미국특허분류(USC) 296/180.1; 296/180.4; 296/180.2
출원번호 US-0877585 (2001-06-08)
발명자 / 주소
인용정보 피인용 횟수 : 78  인용 특허 : 32
초록

An improved method and device for reducing the base drag of bluff bodies, including large boxy highway vehicles such as semi-trailer trucks, which uses low drag vortex generators in combination with either a trailing panel or shortened boattail plates, to provide greater base drag reduction than other previously known methods. The preferred embodiment reduces the required length of boattail plates by over half, making it compatible with current U.S. regulations for trailer underride bars, and providing easier access for rear cargo doors. The device is ea...

대표
청구항

1. An apparatus for reducing the fluid-dynamic base drag of a bluff body (20) moving through a fluid (21) and creating, at the rear of the body, a low pressure wake having an outer wake perimeter, which bluff body (20) has a substantially flat rear base surface (25), a pair of opposed side surfaces (22A and 22B), and opposed top and bottom surfaces all joined with said rear base surface at side, top and bottom trailing edges (24), respectively, so as to form a box container (30), said apparatus comprising:V shaped vortex generators in a linear array (40)...

이 특허에 인용된 특허 (32)

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