Mounting structure of multi-cylinder engine silencer

Abstract

The invention discloses a mounting structure of a multi-cylinder engine silencer. The mounting structure comprises an exhaust pipe and a supercharger positioned on a multi-cylinder engine; a silencer with the length direction parallel to the crankshaft direction of the multi-cylinder engine is transversely arranged above the exhaust pipe; the supercharger is positioned at one end of the silencer; a support plate and a bracket for supporting the silencer are arranged between the silencer and the exhaust pipe; a silencer intake pipe and a worm back pipe for connecting the silencer with the supercharger are arranged between the silencer and the supercharger; a first adjusting mechanism capable of adjusting front-back displacement of the silencer is arranged between the support plate and the bracket; a flexible connecting mechanism capable of adjusting axial displacement of the silencer is arranged between the silencer intake pipe and the worm back pipe; and a second adjusting mechanism capable of adjusting up-down displacement of the silencer is arranged between the silencer and the silencer intake pipe. The mounting structure is simple in structure, fully eliminates the assembly stress possibly generated in all directions of the silencer, and solves the problem of difficult arrangement of the silencer.

Description

technical field [0001] The invention relates to the technical field of engine assembly, more specifically, it relates to an installation structure of a multi-cylinder engine muffler. Background technique [0002] The muffler is an important part of the engine. There are various installation methods for the muffler. The muffler of the vehicle is installed on the frame of the vehicle, while the muffler of the non-road diesel engine is installed on the engine. The structure of the engine itself is compact, and the volume of the muffler is relatively large, accounting for about 15% of the engine. In addition, the space of the non-road engine compartment is small, and there are many various hydraulic pipelines, which is not conducive to the layout of the muffler. At the same time, the muffler The surface temperature is as high as 300°, the heat radiation is very high, and there are relatively high requirements for the space, distance, and heat protection of adjacent parts, which ...

AI Technical Summary

Problems solved by technology

[0003] 1. The vertically arranged muffler has a high center of gravity, and the muffler is a thin-walled part, so its vibration tolerance is particularly poor, and the muffler often tears and leaks, even causing natural phenomena in the engine;

[0004] 2. There are many installation and support points of the existing muffler, so there are many places where assembly stress occurs, and the muffler itself is a high-temperature part, which will generate and accumulate a lot of thermal stress, and its assembly stress and thermal stress are easy to damage the muffler ;

[0005] 3. The installation arrangement of the existing muffler is relatively loose, occupying a large engine space, and it is difficult to disassemble and maintain in the later stage

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