Oil nozzle capable of automatically controlling pressure

Abstract

The invention discloses an oil nozzle capable of automatically controlling pressure, and belongs to the technical field of fuel oil supply system control. An oil nozzle is fixedly connected to the lower end of an oil sprayer body; a top cavity, an air feeding cavity and an oil way I are formed inside the oil sprayer body from top to bottom; the oil feeding cavity communicates with the air feedingpipe; a switch plate with the periphery closely fitted to the inner wall of the channel is arranged in the oil way I; a driving device of the switch plate is arranged in the top cavity; an oil way IIand an oil spraying cavity which communicate with each other are formed in the oil nozzle in sequence from top to bottom; an isolation plate block, a spring and a switch ball which are connected in sequence are arranged in the oil way II from top to bottom; the switch ball is located at a joint of the oil way II and the oil spraying cavity; at least two through holes penetrating through the isolation plate block are formed in the isolation plate block; one side of the isolation plate block is connected with a gear driven by a micro motor; the lower part of the oil spraying cavity is graduallynarrowed from top to bottom, and an oil spraying port is formed in the bottom of the oil spraying cavity; and an oil pressure sensor is arranged on one side of the bottom of the oil spraying cavity. The oil nozzle capable of automatically controlling the pressure can efficiently realize automatic pressure control over the oil nozzle, and control and management of oil fluid can be enhanced.

Description

technical field [0001] The invention relates to the technical field of fuel supply system control, in particular to an oil nozzle capable of automatic pressure control. Background technique [0002] The fuel supply system includes a fuel tank, an electric fuel pump, a fuel filter, a fuel distribution pipe, a pulsation damper, a fuel injector, an oil pressure regulator and a fuel return pipe, among which the fuel injector is a precision device with very high machining accuracy , requiring a large dynamic flow range, strong anti-clogging and anti-pollution capabilities, and good atomization performance. The function of the fuel injector is to spray the high-pressure fuel supplied by the fuel injection pump into the combustion chamber at a certain pressure; at the same time, it receives the fuel injection pulse signal sent by the ECU to precisely control the fuel injection quantity. At present, closed injectors are commonly used, which are divided into two types: hole injector...

AI Technical Summary

Problems solved by technology

[0004] At present, the general oil nozzle can only control the oil pressure at a certain value, and the determination and adjustment of the fixed value need to be manually operated separately, which is very inconvenient

Moreover, the control and management of the oil in the injector used in the oil nozzle needs to be strengthened

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