Silencer for a motor device

Abstract

The invention relates to a silencer for a motor device, which especially for manual control small tools, e.g., tools for refurbishing grassplot and garden, or for small-size motor-cycle, motor cutter engines or analogous mechanism. The said manual control small tool has a piston engine, especially a two cycle engine, wherein the silencer connects with the air exhaust opening (1) of the burning compartment (2) of the piston engine (3), the silencer has at least one first chamber (4) and one second chamber (5) with at least one flow passage (6) set between the air exhaust opening (1) and the first chamber (4). The said silencer can overcome the shortcoming of the existing technology, and has one pressure connection on the condition of keeping higher dutyfactor of burning compartment, which can be indicated that the silencer can reduce or evade the mixture gas letting from the burning compartment. To provide the said silencer, the flow passage (6) is installed between the air exhaust opening (1) and the first chamber (4) in order to be convenient for the gas flowing, which is indicated that the exhaust effluent from the air exhaust opening (1) is mostly let into the first chamber (4)for the inertia, and reflux over again after being full of the first chamber (4), which can bring a back pressure in the burning compartment.

Description

Technical field [0001] The present invention relates to a muffler for motor equipment. The motor equipment is equipped with an internal combustion engine. The muffler is particularly suitable for hand-controlled gadgets, such as tools for repairing lawns and gardens, or engines for small motorcycles and speedboats. , Or a similar device according to the preamble of claim 1. The mobile equipment is equipped with a piston engine, especially a two-stroke engine, in which the muffler is connected to the exhaust port of the combustion chamber of the piston engine. The muffler has at least one first chamber and one second chamber, and at least one flow path is arranged between the exhaust port and the first chamber. Background technique [0002] In order to reduce or avoid harmful emissions of unburned oil and gas mixtures in two-stroke engines, some devices have been published, which are installed on the exhaust port of the combustion chamber to generate a fixed back pressure. However...

AI Technical Summary

Problems solved by technology

But in addition to the exhaust gas, there is also fresh mixed gas discharged into the exhaust port, and then discharged into the muffler, which will reduce the effective coefficient of the engine and will definitely increase the emission of harmful substances

Images