Body frame and low-wind-resistance passenger car

Abstract

The invention relates to a body frame and a low-wind-resistance passenger car. The low-wind-resistance passenger car comprises a car body, wherein the car body comprises the body frame and a skin covering the outer side of the body frame, the body frame comprises side walls, and the tail parts of the side walls are inwards folded, so that the tail part of the passenger car is gradually narrower from front to back. In the running process of the passenger car, airflow flows backwards along the car body so as to form a negative pressure zone behind the car body, the negative pressure zone provides backward adsorption force to the car body, and the magnitude of the adsorption force is related to the size of the negative pressure zone; the tail parts of the side walls of the body frame are inwards folded to enable the tail part of the passenger car to be gradually narrower from front to back, and the tail part of the passenger car forms a structure similar to a wedge-shaped structure, so that the range of the negative pressure zone is reduced in the running process of the passenger car, the adsorption force of the negative pressure zone on the car body is reduced, and the wind resistance of the passenger car is reduced.

Description

technical field [0001] The invention relates to a body frame and a low wind resistance passenger car. Background technique [0002] Passenger car is an important means of transportation with the characteristics of large passenger capacity. In order to strive for larger passenger space, the last row of seats of existing passenger cars generally all is arranged side by side five. However, with the diversification of transportation means and the increasing popularity of private cars, the seat occupancy rate of passenger cars is often very low, and the occupancy rate is less than half or even less, and the profitability of passenger dedicated lines has dropped significantly. Faced with such a situation, from the perspective of reducing operating costs, higher energy-saving requirements are put forward for passenger cars. [0003] Passenger cars need to overcome wind resistance during operation, and the wind resistance coefficient of the square-shaped carriage is relatively lar...

AI Technical Summary

Problems solved by technology

However, there are still big problems in the actual implementation of the skeleton structure of the bus. For example, the cockpit occupies a large length, which can reach 3.65m, resulting in a great waste of vehicle space.

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