Gasoline engine with three taper of magnetic flywheel and double0layer cooling of logarithmic spiral runner

Abstract

The invention discloses a gasoline engine with three taper of a magnetic flywheel and double0layer cooling of a logarithmic spiral runner. A silencer assembly (F7) including a catalyst silencing pipe (69) is mounted on a two-stroke gasoline engine through a silencer pad (F8); in an outlet of the silencer assembly (F7), an inner outlet (F7C2) of an inner metal cover (F7C1) is formed; and in an outer position, an outer outlet (F7j2) of an outer resin cover (F7j1) and a logarithmic runner (F7j3) are formed for double-layer cooling and silencing. A filter screen is arranged in a scavenging channel; another filter screen is arranged below the scavenging channel, and has a filter adjusting effect; and a catalyst is arranged. The gasoline engine is convenient for double-layer cooling and silencing, and is safe without scalding human hands. The gasoline engine solves the problem of axial movement of traditional taper of the magnetic flywheel. When a section shape of a wing-shaped blade with a parabola mean camber line equation is designed, the key is to determine an equation of a camber of the blade; a bending angle is 18 degrees, a chord length b is 20, and a / b is 0.45; a is a maximum deflection point on a bow; and the numbers are substituted into a general equation of a coordinate origin parabola of the analytic geometry for solution. Intermediate technicians can produce a mold module with a wing-shaped section outline. The outer end of the blade is a tip to facilitate smooth exhaust and to reduce disordered eddy currents, and has an edge to facilitate cutting of a winding object.

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 head with internal and external serrations and a control system 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 diffe...

AI Technical Summary

Problems solved by technology

The muffler is sometimes scalded and unsafe

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