exhaust for vehicles

Abstract

The invention discloses an exhaust device. The exhaust device comprises a shell, a pressure balance ball and a support, wherein a first cavity and a second cavity separated from each other are formed in the shell; a first air inlet and a first air outlet communicating with the first cavity, and a second air inlet and a second air outlet communicating with the second cavity are formed in the shell; a third cavity and a fourth cavity which are separated from each other are formed in the pressure balance ball, one part of the pressure balance ball is placed in the first cavity and provided with a third air inlet and a third air outlet which are in communication with the third cavity, the third air inlet communicates with the first air inlet, and the third air outlet communicates with the first air outlet; the other part of the pressure balance ball is placed in the second cavity and provided with a fourth air inlet and a fourth air outlet which are in communication with the fourth cavity, the fourth air inlet communicates with the second air inlet, and the fourth air outlet communicates with the second air outlet; and the support is used for supporting the pressure balance ball. According to the exhaust device, the pressure pulse and exhaust velocity of engine exhaust can be effectively reduced, and exhaust damping can be achieved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an exhaust device for vehicles. Background technique [0002] Existing engine mostly is four-stroke engine, and its four-stroke is intake stroke, compression stroke, power stroke and exhaust stroke, and during exhaust stroke, exhaust valve is opened so that exhaust gas after combustion in the combustion chamber is discharged. Because each cylinder has only one stroke exhausting in one operating cycle, and the exhaust valve is basically closed during the other three strokes, so each cylinder is exhausted periodically. Exhaust will cause exhaust pulse. Since the exhaust is not uniform throughout the cycle, the exhaust vibration and exhaust noise are very loud, which affects the comfort of the vehicle. Contents of the invention [0003] The present invention aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent. For this re...

AI Technical Summary

Problems solved by technology

Because each cylinder has only one stroke exhausting in one operating cycle, and the exhaust valve is basically closed during the other three strokes, so each cylinder is exhausted periodically. Exhaust will cause exhaust pulse. Since the exhaust is not uniform throughout the cycle, the exhaust vibration and exhaust noise are very loud, which affects the comfort of the vehicle.

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