Moving coil type high frequency booster pump

Abstract

The invention discloses a moving coil type high frequency booster pump. The moving coil type high frequency booster pump comprises an oil inlet, an oil cylinder, a piston rod, a piston, a magnetic conductive cover, a pump body, permanent magnets, an oil outlet, a first spring, a second spring, a power line, a wire winding frame, a coil, a bolt, a one-way valve and an oil return hole, wherein the oil cylinder is connected with the pump body through the bolt; the magnetic conductive cover is arranged at the end opening of the pump body; the magnetic conductive cover is connected with the pump body through a thread; the one-way valve, the oil inlet, the piston and the piston rod are arranged on the oil cylinder; the oil return hole is formed in the magnetic conductive cover; the one-way valve communicates with the pump cavity through the oil return hole in the magnetic conductive cover; the first spring is arranged on the piston rod in the pump cavity in a sleeving manner; one end of the first spring is connected with the wire winding frame; one end of the second spring is connected with the wire winding frame, and the other end of the second spring is connected with the bottom of the pump body; the permanent magnets are arranged on the inner wall of the pump body; and the coil is wound on the wire winding frame. According to the moving coil type high frequency booster pump provided by the invention, the linear electromagnetic driving method is adopted, the structure is simple, the weight is light, the control is convenient, the driving capability is high, and a higher pressure can be further produced.

Description

technical field

[0001] The invention relates to a fuel boosting machine in an engine, in particular to a moving-coil high-frequency boosting pump. Background technique

[0002] The fuel injection system of the engine has a great influence on the performance of the engine. The fuel pressure directly affects the fuel atomization characteristics of the engine. Especially when the aviation two-stroke engine burns medium oil, the atomization is relatively difficult and requires a higher pressure. At the same time, the fuel pump is required to have a relatively simple structure to ensure the power-to-weight ratio and reliability of the engine. The commonly used servo motor single pump has a relatively complex structure, relatively low fuel pressure, and the highest short-circuit fuel pressure does not exceed 8 bar (bar). At the same time, the control of this fuel pump is relatively complicated, so there is an urgent need for a light weight, high pressure, structure. Simple and re...

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