A freely removable and adjustable small gasoline engine muffler

Abstract

The invention discloses a small gasoline engine silencer capable of being freely detached and adjusted. The small gasoline engine silencer capable of being freely detached and adjusted comprises a four-stage silencing structure formed by a buffering cavity, a first cavity, a second cavity and a third cavity connected between a gas inlet pipe and an exhausting pipe; the gas inlet pipe is welded and fixed to the buffering cavity which is connected and communicated with the exhausting pipe after sequentially passing through the first cavity, the second cavity and the third cavity; and by adjusting the length and installation of any one or more of the second cavity and a perforated pipe of the second cavity and the third cavity and a perforated pipe of the third cavity, the silencing requirements of a small gasoline engine under various noise frequencies and different installing spaces can be met. By means of the small gasoline engine silencer capable of being freely detached and adjusted, the large exhaust resistance generated because of 90-degree swerving of an exhausting port is avoided, the exhaust resistance of the silencer is lowered to be minimum while the silencing effect is guaranteed, silencing cavities behind the first cavity can be conveniently increased, decreased or replaced, so that the silencing requirements under various noise frequencies and different installing spaces can be met, the perforated pipe, a sealing gasket and other core parts of each cavity can be independently detached, cleaned and replaced, and inspection and maintenance are facilitated.

Description

technical field [0001] The invention relates to a muffler, in particular to a freely detachable and adjustable small gasoline engine muffler. Background technique [0002] A small gasoline engine is a compact, miniature gasoline engine with a displacement smaller than that of an automobile or a motorcycle engine. A typical small gasoline engine is such as the G320RC engine of Japan ZENOAH Company. [0003] Small gasoline engines can be used as prime movers for mobile machinery such as model cars, model airplanes, and exoskeleton robots. They have the characteristics of high power density ratio, light weight, and compact installation space. The displacement of small gasoline engines is smaller than that of automobiles and motorcycles. Many, so in applications that emphasize high power density ratio, such as the prime mover as the power source of exoskeleton robots, the muffler is required to have as little exhaust resistance as possible to reduce the power loss caused by nois...

AI Technical Summary

Problems solved by technology

Existing mufflers usually have relatively large exhaust resistance for automobile and motorcycle engines, and the mufflers of these mufflers are usually unable to be disassembled independently, and the mufflers cannot be conveniently added, reduced and replaced, and it is difficult to flexibly adapt to various noise frequencies and different installations At the same time, because the parts in the muffler chamber are not easy to disassemble separately, there is also inconvenience in inspection and maintenance, and if a part is damaged, the whole muffler usually needs to be replaced

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