Electromagnetic control type fuel injecting nozzle

Abstract

The invention discloses an electromagnetic control fuel-oil nozzle; the nozzle comprises an upper shell body, a lower shell body, a coil reel and a magnet yoke; the upper shell body is welded with the lower shell body; the coil reel is welded out of the upper shell body and the lower shell body; an electromagnetic coil is winded on the coil reel; the magnet yoke is divided into two parts which are symmetrically welded on the surfaces of the upper shell body and the lower shell body; the electromagnetic coil is wrapped between the interior of the magnet yoke and the coil reel. A valve core body is composed of a valve core head, a valve core rod and a steel ball which are welded together from top to the bottom; a spring is arranged between the valve core and the upper shell body. The electromagnetic control fuel-oil nozzle has the advantages of simple structure, reliable sealing, high response frequency, low manufacturing cost, improving the duration performance of the airplane while improving the fuel oil economy and reducing the exhaust of the engine.

Description

technical field [0001] The invention relates to an electromagnetically controlled fuel nozzle, in particular to an electromagnetic fuel nozzle used in an electronically controlled fuel injection system of an aviation two-stroke gasoline engine, and belongs to the technical field of aviation engine fuel injection devices. Background technique [0002] The fuel supply devices of micro gasoline engines used in the domestic aviation field all use carburetors to mix fuel and air into the cylinders, and control the amount of mixed gas supplied by adjusting the opening of the throttle valve, thereby controlling the power of the engine . The disadvantage of this is that it is impossible to accurately control the fuel supply to adjust the engine power. At the same time, due to the adjustment characteristics of the qualitative variables of the carburetor, it is impossible to adjust the fuel supply in real time according to the actual working conditions of the engine. [0003] In addi...

AI Technical Summary

Problems solved by technology

The disadvantage of this is that it is impossible to precisely control the fuel supply to adjust the engine power. At the same time, due to the adjustment characteristics of the qualitative variables of the carburetor, it is impossible to adjust the fuel supply in real time according to the actual working conditions of the engine.

[0003] In addition, the naturally aspirated fuel supply system injects the oil-air mixture into the cylinder. During the exhaust stroke, a part of the oil-air mixture will be directly discharged out of the cylinder with the exhaust gas, causing pollution and waste, because during the scavenging process of the two-stroke engine For a period of time, the intake port is open while the exhaust port is open, so that a part of the mixed gas newly entering the cylinder is directly discharged out of the cylinder body

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