Synchronous layered displacement-variable electric fuel-injection equipment

Abstract

The invention relates to a synchronous layered variable electric fuel injection device, which includes a support, a motor, a fuel injector, an end cover and a fuel injection nozzle, and is characterized in that an oil distribution pan is arranged between the support and the end cover, The oil pan is connected with the rotating shaft of the motor; at the connection part between the support and the injector, there is a first oil injection hole corresponding to the outlet of the injector; there is at least one oil distribution hole on the oil distribution plate, The oil distribution hole corresponds to the first fuel injection hole; at the connection part between the end cover and the fuel injection nozzle, there is a second fuel injection hole corresponding to the outlet of the fuel injection nozzle, and the second fuel injection hole is in turn connected with the oil distribution plate on the oil distribution plate. corresponding to the hole. The oil distribution hole is arranged on the circumference corresponding to the first oil injection hole on the support. The fuel injector and the electric motor are connected with the electronic control unit. Working under the control of the electronic control unit, it can inject fuel into the cylinder in layers and variables during the injection process, so that the proportion of the combustible mixture is distributed reasonably, the combustion is sufficient, the power performance of the car is improved, the fuel consumption is reduced, and the emission is reduced.

Description

technical field [0001] The invention relates to an engine fuel injection device, in particular to a synchronous layered variable electric fuel injection device. Background technique [0002] Because carburetors are simple in structure, easy to use, and low in cost, some automobile engines still use carburetors at present. The main disadvantage of the carburetor engine is that the mass distribution of the air and the mixture is not ideal, which affects the power of the engine, the improvement of the economy and the improvement of the emission. For this reason, people have been seeking other better mixed gas forming methods and devices. In recent years, in order to meet the increasingly stringent requirements of automobile emission regulations, some countries have adopted a mixture formation system that directly injects gasoline into the intake pipe, that is, the electronically controlled injector is installed at the intake port of the engine, and is controlled by an electron...

AI Technical Summary

Problems solved by technology

Although the method of directly injecting gasoline into the engine intake pipe has many advantages, there are still many deficiencies. The main reason is that the secondary injection process of fuel has not been accurately stratified and variable controlled, and the proportion of combustible mixture in the cylinder is unreasonable, resulting in The flame conduction is slow, the combustion is not sufficient, the emission is not ideal, and the shock resistance is poor, which is easy to cause knocking

Images