Air inlet cavity of FSAE racing car

Abstract

The invention discloses an air inlet cavity of an FSAE racing car. The air inlet cavity comprises an air inlet pipe, a pressure stabilizing cavity, air inlet manifolds and a manifold mounting surface, wherein one end of the air inlet pipe is connected with the pressure stabilizing cavity; the tops of the four air inlet manifolds which are parallel to one another are connected with the bottom of the pressure stabilizing cavity; the bottoms of the air inlet manifolds are connected with the manifold mounting surface; the manifold mounting surface is used for be assembled with an engine; the air inlet pipe comprises a throttle valve mounting surface, a compression pipe, a flow-limiting valve and a diffusion pipe; the throttle valve mounting surface is arranged at one end of the compression pipe; the other end of the compression pipe is connected with one end of the flow-limiting valve; one end of the diffusion pipe is connected with the other end of the flow-limiting valve; the other end of the diffusion pipe is connected with the pressure stabilizing cavity; and the throttle valve mounting surface is used for being assembled with a throttle valve. According to the air inlet cavity disclosed by the invention, by enlarging openings of two air inlet manifolds at the outer side, the air inflow is more uniform, and the defect that the air inflow of the two air inlet manifolds positioned at the outer side is insufficient is overcome; a low-pressure area and vortex at the flow-limiting valve and a corner are reduced, and the induced resistance of a connected part is reduced; the phenomenon of blow-by of various cylinders is inhibited; and meanwhile, the lengths of the air inlet manifolds are also increased.

Description

technical field [0001] The invention belongs to the field of engines, and in particular relates to an air intake chamber of an FSAE racing car. Background technique [0002] He Tongyang, He Shan, Li Jie, Xiao Guoquan, and Lei Xiong from South China University of Technology proposed a design for the intake system of an FSAE racing car engine for college students. In this paper, AVL-BOOST is used to establish an engine model to analyze and determine the appropriate intake manifold length and resonant cavity volume. However, the volume of the plenum chamber is set at 3.8L, which makes the throttle response slightly sluggish. The length of the intake pipe is 310mm, which is too long, and it is difficult to meet the existing FSAE competition rules. [0003] Zheng Yingjie and Jian Xiaoping from Chang'an University proposed a CAE simulation and optimization design of FSAE racing air intake system, using GT-Power for modeling and analysis, and adding wind cups. However, the volum...

AI Technical Summary

Problems solved by technology

Does not solve the sealing problem at the connection with the engine

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