Filtering scavenging gasoline brush cutter

Abstract

A filtering scavenging gasoline brush cutter adds a filter screen in a scavenging path of a two-stroke gasoline engine, thus providing emission reduction and standardizing effect; the filter screen (58) in the scavenging path is arranged close to a technology joint plate (55) or below the scavenging path; the filter screen in the scavenging path comprises a plurality of metal wires braided in longitude and latitude mode, and can filter and regulate breathing between cylinder gas and a crankcase; a plurality of wedges (11b) are arranged to match with the noise control filter screen; the wedges comprise many hollow six-edge shapes; the top of the six-edge shape is provided with a small hole; air flow firstly enters the wedges for compression, then exits the wedge small holes for expansion, thus controlling the noises; a catalyst ree; (59) is arranged and comprises platinum, rhodium, indium and iridium, thus providing catalyst effect for passing gas, and smartly reducing gas noises and HC discharge. A cutter plate (64) with inner sawteeth (642) can prevent cutter relieving; a carburettor of the engine comprises a four-wing nozzle (70a) for atomization; a cutting machine comprises a plurality of outer sawteeth and inner sawteeth, thus preventing the cutter relieving conditions when trimming hard items; the filtering scavenging gasoline brush cutter is low in emission, and a discharge port is far away from people; many measures can improve the quality and usability of the brush cutter.

Description

technical field [0001] The invention provides a shrub cutter belt mower used for cutting shrubs in places such as flower beds, gardens, parks, roads, etc., in the shape of flowers and trees, belonging to the field of garden machines. Using the innovative method of indirect discharge after passing through the 1.5-meter catalase muffler pipe, in order to expand the use, a mowing head with cutting stacks and mowing steel wires, a cutting disc with internal and external serrations and carburetor are installed on the brush cutter The four-pronged nozzle of the device, and the long grass pressing wheel for easy grass pressing and moisture retention and grass pattern, to form a low-emission gasoline brush cutter. Combustion chamber with function wave and matching with ignition device for internal combustion engine with movable receiving electrode and micro-moving discharging electrode, double auxiliary skirt on piston skirt to reduce hydrocarbon emission, and logarithmic differential...

AI Technical Summary

Problems solved by technology

In particular, the fuel economy of the two-stroke gasoline engine is worse than that of the four-stroke gasoline engine, and the hydrocarbon emissions in the tail gas often exceed the standard

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