An electronically controlled internal combustion engine fuel injection solenoid valve

Abstract

The invention relates to an electronic control internal combustion engine oil injection solenoid valve. The solenoid valve comprises a valve body, an injection barrel, an extending part, an injectionhole, a protrusion, a valve clack, a pressure release channel, a connector, a sawtooth part, an electromagnetic coil, a bracket, an extension terminal, a detection channel, an oil cylinder, an oil inlet channel, an oil inlet pipe, a coil shell, a valve rod inner hole, a guide sleeve, a valve rod, steel balls, a connector channel, a shrinkage part, a piston, a piston upper hole, a piston left hole,a piston right hole, a plug, a first spring, an L-shaped base and a second spring. The solenoid valve further comprises an electronic control circuit, the electronic control circuit comprises a filtration module and an emergency power supply module, the filtration module comprises a resistor R1 and a capacitor C, the resistor R1 and the capacitor C are connected in series, and one end of the capacitor C is grounded; and the emergency power supply module comprises an electromagnetic relay module K, a first passage and a second passage, the first passage is connected with a first contact of theelectromagnetic relay module, a resistor is connected into the first passage, the second passage is connected with a second contact of the electromagnetic relay module, and a diode is connected intothe second passage; and the first passage and the second passage are connected with the solenoid valve.

Description

technical field [0001] The invention relates to the related field of an internal combustion engine fuel injection system, in particular to an electronically controlled internal combustion engine fuel injection solenoid valve. Background technique [0002] Internal combustion engines are widely used in the existing technology, such as transportation, large-scale equipment operation and other fields are widely used, which will be applied to the fuel injection system, the fuel injection system sends oil to the into the combustion chamber for combustion. [0003] In actual use, the existing fuel injection system has the following problems: [0004] 1. During the injection process, it is inevitable that uneven injection will lead to insufficient combustion. In this regard, some existing technologies adopt the atomization method. However, the atomization structure in the prior art is often complicated and the cost is high. , such as using parts such as heat exchangers for atomiz...

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Problems solved by technology

[0004] 1. During the injection process, it is inevitable that uneven injection will lead to insufficient combustion. In this regard, some existing technologies adopt the atomization method. However, the atomization structure in the prior art is often complicated and the cost is high. , such as using parts such as heat exchangers for atomization, the installation structure of the heat exchanger is relatively complicated, and there are many restrictions on the use

[0005] 2. In the prior art solenoid valve, due to blockage or pressure fluctuation, the oil chamber is over-pressurized, and sometimes the pressure cannot be released in time

[0006] 3. There is a need to clean the oil cavity in the prior art, but it is difficult to clean it during operation and maintenance

[0007] 4. In the prior art solenoid valve, when the oil supply pressure is large due to the oil supply deviation, water hammer is prone to occur

[0008] 5. The electromagnetic coil structure in the prior art is difficult to take into account the problems of firmness, large magnetic flux and material saving at the same time

[0009] 6. The power supply circuit of the solenoid valve in the prior art is generally only for power supply and has a single function

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