Methanol injector

Abstract

The invention discloses a methanol injector for a methanol injection system. The methanol injector comprises a nozzle component, an electromagnet component and a sealing component. The nozzle component is assembled into the electromagnet component after being assembled, so that the electromagnet component and the nozzle component can be separately produced, the production difficulty is reduced, and the production cost is reduced. According to the methanol injector for the methanol injection system, a nozzle body is designed into a thin wall part, so that the inner diameter of a coil can be reduced to the greatest extent, the number of turns of the coil can be increased under the condition that the resistance is unchanged, therefore the magneto motive force of a whole magnetic circuit is increased; an iron core is in transition fit with yoke iron so as to reduce the reluctance of an air gap, and the magnetic flux of the whole magnetic circuit can be increased through increasing the magneto motive force and reducing the magnetic resistance; in addition, a thin-wall annular groove is formed in the position, close to the iron core, of the nozzle body, so that the magnetic flux area isreduced; and the magnetic flux is increased and the area is reduced, so that the magnetic induction intensity passing a valve rod is greatly increased, therefore the electromagnetic suction force is greatly increased.

Description

technical field [0001] The invention relates to the technical field of injectors, in particular to a methanol injector. Background technique [0002] Under the control of the electronic control system, the methanol injector that injects methanol into the intake pipe at a fixed time, quantity, and pressure to drive the normal operation of the methanol fuel engine is an important device of the methanol injection system, but there are similar products sold in the market. The following questions: [0003] First of all, the electromagnet, the iron core and the nozzle body are integrally injection molded, the process is complicated and the cost is high. [0004] Secondly, the electromagnetic force of the electromagnet is relatively small, resulting in a small spring preload, and the opening and closing response time of the valve stem fluctuates greatly with the oil pressure, resulting in large fluctuations in the final oil volume. Contents of the invention [0005] The purpose...

AI Technical Summary

Problems solved by technology

[0003] First of all, the electromagnet, the iron core and the nozzle body are integrally injection molded, the process is complicated and the cost is high

[0004] Secondly, the electromagnetic force of the electromagnet is relatively small, resulting in a small spring preload, and the opening and closing response time of the valve stem fluctuates greatly with the oil pressure, resulting in large fluctuations in the final oil volume

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