公开(公告)号：KR1020050008368A

公开(公告)日：2005-01-21

申请号：KR1020030048436

申请日：2003-07-15

Applicant: 재단법인서울대학교산학협력재단

Inventor： 최해천 ,  박형민 ,  최진 ,  이동건 ,  김정래 ,  전우평 ,  한성현 ,  김진성

IPC: F15D1/10

CPC classification number: B62D35/007 ,  B60J1/20 ,  B62D35/001 ,  Y10S180/903

Abstract: PURPOSE: A wake agitator and a wake agitation method are provided to reduce the fuel cost of a carrier by reducing the drag generated from the carrier whose a rear side is stumpy and to maximize energy efficiency by greatly decreasing the drag without an extra input of the energy. CONSTITUTION: A disturbance apparatus(10) is protruded from a rear corner of an object(1). Many disturbance apparatuses are arranged in a wake agitator to recover the rear pressure by reducing the intensity of a wake to be generated from the rear side of the object. Thereby, the fuel cost of a carrier is reduced. Moreover, the energy efficiency is maximized by reducing the wake without an additional energy input.

Abstract translation: 目的：提供尾流搅拌器和尾流搅拌方法，通过减少从背面被破坏的载体产生的阻力，通过大大降低阻力来最大限度地提高能量效率，从而降低载体的燃料成本，而不需要额外的输入 能源。 构成：干扰装置（10）从物体（1）的后角突出。 许多干扰装置设置在尾流搅拌器中，以通过减小从物体的后侧产生的尾流的强度来恢复后部压力。 因此，载体的燃料成本降低。 此外，通过减少尾流而不增加能量输入，能量效率最大化。

公开(公告)号：KR1020040025022A

公开(公告)日：2004-03-24

申请号：KR1020020056810

申请日：2002-09-18

Applicant: 재단법인서울대학교산학협력재단

Inventor： 최해천 ,  이충엽 ,  전우평 ,  김진성

IPC: B62D37/02

CPC classification number: B62D37/02 ,  B62D35/001

Abstract: PURPOSE: A drag reducing device of a carrier with a fixed separation point and a method thereof are provided to reduce fuel consumption by actively decreasing drag force with applying to a bus or a truck at a low cost, and to increase energy efficiency by using a piezoelectric ceramic oscillator. CONSTITUTION: A drag reducing device is used for a carrier(1) having the box type rear part for loading such as a truck or a bus with the fixed separation point, and composed of a vibrating apparatus(10) having a vibration surface(10a) vibrating up and down or right and left around the fixed separation point such as a rear corner of the carrier. The vibrating apparatus comprises a piezoelectric ceramic actuator having a piezoelectric ceramic oscillator installed in the rear corner of the carrier, a blade contacted to the piezoelectric ceramic oscillator and amplified and oscillated by vibration of the end, and a control unit applying alternating current to the piezoelectric ceramic oscillator to vibrate the piezoelectric ceramic oscillator.

Abstract translation: 目的：提供具有固定分离点的载体的减阻装置及其方法，以通过以低成本施加到公共汽车或卡车上积极地减小牵引力来降低燃料消耗，并且通过使用 压电陶瓷振荡器。 构成：将具有用于装载卡车或总线的箱型后部的固定分离点用于载体（1）的减阻装置用于具有振动面（10a）的振动装置（10） ）在固定分离点（例如载体的后角）周围上下或左右振动。 振动装置包括压电陶瓷致动器，其具有安装在载体的后角的压电陶瓷振荡器，与压电陶瓷振荡器接触的叶片，并通过端部的振动放大和振荡;以及控制单元，将压电陶瓷振荡器施加到压电 陶瓷振荡器振动压电陶瓷振荡器。