An intelligent electronically controlled oil supply system applied to a gasoline engine and its oil supply method

Abstract

The invention discloses an intelligent electronic-control fuel supply system and an intelligent electronic-control fuel supply method applied to a gasoline engine. The fuel supply system and the fuel supply method are capable of automatically optimizing and adjusting mixing ratio, namely, air-fuel ratio of fuel-air mixed gas supplied to the gasoline engine by depending on an electronic-control sensing and control system. The fuel supply system comprises a fuel chamber with an air inlet pipe, a mixing chamber with an electronic-control throttle switch, an oxygen sensor and an electronic control unit, wherein the oxygen sensor is used for acquiring exhaust component information, and by processing the exhaust component information from the oxygen sensor, the electronic control unit is used for controlling air intake of the air inlet pipe so as to control the atomization degree of gasoline entering the mixing chamber, and is used for controlling the on-off degree of the electronic-control throttle switch so that the mixing ratio of the fuel-air mixed gas in the mixing chamber is adjusted and optimized, and the fuel-air mixed gas in the engine can be sufficiently combusted. Further, operation safety of the engine is achieved, and gasoline consumption and exhaust emission are reduced.

Description

Technical field: [0001] The present invention relates to an oil supply system and oil supply method applied to a general-purpose gasoline engine, in particular to an intelligent electronically controlled oil supply system and its Oil supply method. Background technique: [0002] As we all know, the existing fuel supply system generally adopts two conventional means for the mixing and supply of engine oil and gas. One is the carburetor that is generally used in the mechanical equipment (such as moped, gasoline generator, water pump, chain saw, etc.) of motorcycles and low-displacement gasoline engines at present. The second is the electronically controlled gasoline injection system used in existing cars. [0003] Although the existing carburetor is mature in technology, due to its mechanical structure, the ratio of oil-gas mixing (air-fuel ratio) cannot be perfected, so that the mixed oil-gas cannot be completely burned after entering the engine. This not only greatly redu...

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Problems solved by technology

[0005] However, there are also some problems in the actual application of this automotive EFI system

First of all, as an important part of the entire automotive EFI system, the fuel injector in the fuel injector is often blocked due to poor oil quality and many impurities in the injected gasoline

Objectively speaking, the quality of domestic gasoline is generally not high, so the failure rate of fuel injectors is generally high

This affects the safety factor of the gasoline engine

[0006] On the other hand, this kind of automotive electronic fuel injection system adopts the method of splitting gasoline and air, and its mixing point is located in the engine block, that is to say, the whole system simultaneously supplies oil and air in the engine block, although gasoline The ratio of air to air is controlled by the ECU and directs the work of each fuel supply or air supply device, so that the mixing ratio of oil and gas is equal to or close to the air-fuel ratio, but the mixing of oil and gas in the cylinder is insufficient, and the effect of gasoline atomization is not good, while At the same time, it is burned without sufficient atomization and mixing. Although its effect is improved compared with conventional carburetors, it still fails to achieve the purpose of fully burning the mixture.

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