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Automobile rear structure

一种汽车后部、后部的技术，应用在上部结构、上部结构分总成、车辆部件等方向，能够解决汽车动力性能恶化等问题

Inactive Publication Date: 2008-02-13
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the airflow under the floor of the vehicle body is disturbed, thus causing deterioration of the dynamic performance of the car

Method used

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  • Automobile rear structure
  • Automobile rear structure
  • Automobile rear structure

Examples

Experimental program
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Embodiment Construction

[0030] Embodiments of the present invention are described with reference to FIG. 1 to FIG. 13 . Here, in the drawings, an arrow FR indicates a vehicle front direction, an arrow UP indicates a vehicle upper direction, and an arrow W indicates a vehicle width direction.

[0031] FIG. 1 is a diagram showing the configuration of a rear portion of an automobile 12 constructed by applying an automobile rear portion structure according to an embodiment of the present invention. FIG. 2 is a bottom view showing the configuration of the rear structure of the automobile 12 . As shown in FIGS. 1 and 2 , a rear bumper cover 16 is mounted to the rear of the body 14 of the automobile 12 . The rear bumper cover 16 includes a cover body 16A provided at the rearmost end portion of the vehicle 12 in the vehicle width direction, and side wall portions 16B extending from both ends of the vehicle in the vehicle width direction to the front of the vehicle.

[0032] In front of the cover body 16A, ...

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PUM

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Abstract

The automobile rear structure includes a diffuser which is arranged on a vehicle-body rear side of a muffler and is configured to interfere with exhaust gas discharged from the muffler so as to make a portion of the exhaust gas flow downwardly, and a flow rectification plate which is arranged below the muffler and guides the downwardly flowing exhaust gas in the direction along an air flow flowing below the floor of the vehicle body to merge the exhaust gas into the air flow. The exhaust gas discharged downwardly from a space defined between a front end portion of the diffuser and a body portion of the muffler is guided in the direction inclined downwardly toward the rear side of the vehicle body and, thereafter, is guided in the direction along the air flow flowing below the floor of the vehicle body, and is merged into the air flow.

Description

technical field [0001] The invention relates to an automobile rear structure. Background technique [0002] Conventionally, there has been proposed an underfloor structure in the rear of an automobile having the following configuration (see, for example, Japanese Patent Application Laid-Open No. 7-165126). That is, the rear overhang is located above the floor undersurface of the wheelbase, and the muffler having a substantially flat cross-sectional shape is disposed below the floor undersurface adjacent to the rear overhang in a horizontally installed state. Further, the lowest surface of the muffler is located above the underfloor surface of the wheelbase portion and below the lower end of the rear bumper. The underfloor structure prevents the flow velocity of air flowing under the floor of the vehicle body from decreasing, and prevents such air from escaping by making the muffler an aerodynamic part, thereby enhancing the aerodynamic performance of the car. [0003] Here...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K13/04F01N13/20B60R19/48B62D25/20B62D35/02B62D37/02
CPCF01N13/20F01N13/082
Inventor 岩本宏明伊藤孝夫山本晴彦鹤田宪
Owner TOYOTA JIDOSHA KK
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