An Intelligent Carburetor for Small General Purpose Gasoline Engines

Abstract

The invention relates to a carburetor, in particular to an intelligent carburetor for a small general gasoline engine. The intelligent carburetor for the small general gasoline engine comprises a vertically arranged carburetor body, an electric executing mechanism and a flow rate control valve, the air damper shaft of the carburetor body is firmly provided with an air damper rocker, one end of an input rocker is connected with the air damper rocker through a first connecting bar while the other end is connected with a speed regulating rocker through a second connecting bar, the input rocker is connected with the electric executing mechanism, displacement signals are sent to the electric executing mechanism through the speed regulating rocker, the electric executing mechanism controls the opening degree change of the flow rate control valve according to the displacement signals, and meanwhile, the speed regulating rocker drives the air damper rocker to control the opening degree change of the air damper of the carburetor body. The intelligent carburetor for the small general gasoline engine has beneficial effects of energy conservation, emission reduction, smooth transition, stable working and low manufacturing cost.

Description

technical field [0001] The invention relates to a carburetor, in particular to an intelligent carburetor for a small general gasoline engine. Background technique [0002] Existing carburetors have been gradually replaced by electronic injection technology due to their inherent defects in the precise control of the combustion process and emissions. Although the engine electronic injection technology can solve the above problems, there are still two shortcomings: one is The effect of energy saving and emission reduction applied to small general-purpose gasoline engines is not satisfactory; the second is that the manufacturing cost is high. Therefore, the existing carburetors are still widely used in small general-purpose gasoline engines. [0003] The main purpose of existing carburetors is to match the actual oil supply characteristics of the carburetor with the required oil supply characteristics of the engine as much as possible. For this reason, a calibration device is ...

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Problems solved by technology

[0002] Existing carburetors have been gradually replaced by electronic injection technology due to their inherent defects in the precise control of the combustion process and emissions. Although the engine electronic injection technology can solve the above problems, there are still two shortcomings: one is The effect of energy saving and emission reduction applied to small general-purpose gasoline engines is not ideal; second, the manufacturing cost is high

In order to ensure smooth transition and stable operation, when trying to partially enrich the partial lean region, it will also make the mixture with a suitable concentration in other operating conditions be enriched unnecessarily, resulting in large exhaust emissions and serious fuel waste

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