Simple testing device for electric control oil injector

Abstract

The invention discloses a simple testing device for an electric control oil injector. The simple testing device comprises a hydraulic oil tank, a hydraulic oil supply valve, a hydraulic pump, a pressure accumulation block assembly, a pulse signal generator, a lubricating oil gravity oil tank, a lubricating oil supply valve, a lubricating oil filter, an oil discharge valve and measuring cylinders, wherein the hydraulic oil tank, the hydraulic oil supply valve, the hydraulic pump and the pressure accumulation block assembly sequentially communicate through a hydraulic oil supply pipeline and supply hydraulic oil for testing to the oil injector, and the lubricating oil gravity oil tank, the lubricating oil supply valve and the lubricating oil filter sequentially communicate to the oil injector through a lubricating oil pipeline to supply lubricating oil for operation; and a first oil return pipeline is arranged between the oil injector and the hydraulic oil tank, a second oil return pipeline is arranged between the pressure accumulation block assembly and the hydraulic oil tank, and the pulse signal generator is in telecommunication connection with the electric control end of the oil injector. The device is simple in structure, the system pressure is stable and adjustable, an electric motor is not needed, pressure control and all testing work of the hydraulic system can be achieved only through manual operation, and operation is easy and convenient.

Description

Technical field[0001]The present invention relates to an oil injection control technique, and more particularly to a simple test device for an electronically controlled injection.Background technique[0002]The main promotion engine used by the new large ocean ship is more than 95% of the electronically controlled low-speed diesel engine. This model is used to lubricate the piston and the cylinder liner of the cylinder block is a electronically controlled injection, with a switch amount electrical signal. Controlling the action of the oil injection, the time node of the electrical signal controls the injection of the oil, the electrical signal duration controls the fuel replacement procedure, that is, the amount of injection of the oil, the number of electrical signals controls the number of oils.[0003]After the fuel injection is completed, it is necessary to test whether it can be smoothly completed, smooth, mechanical parts, and detect whether it is full of error in the range of err...

AI Technical Summary

Problems solved by technology

The general design is to continuously run the motor to drive the variable hydraulic pump to continuously supply hydraulic oil. The stability of the pressure is to control the displacement of the variable hydraulic pump through the feedback of the pressure sensor. This scheme uses a complex and expensive electrical control system and expensive Second, the hydraulic oil piping system is equipped with a release valve to release in time when overpressure occurs. This state leads to continuous waste of electricity

Although this type of test equipment can ensure that the pressure of the hydraulic system fluctuates within 5%, the control principle adopted by the equipment of this design principle is relatively complicated, and the cost of pressure stability control is too high. The maintenance cost is high, and at the same time, the large volume occupies a large test area

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