Circulation type oil injection system of internal combustion engine

Abstract

The invention provides a circulation type oil injection system of an internal combustion engine. The oil injection system comprises an electromagnetic valve, a combustion chamber, an oil tank, a coarse filter, a fine filter, a pressure meter and a thermometer; and the electromagnetic valve comprises a valve body, an injection cylinder, an extension part, injection holes, a bump, a valve clack, a pressure relief passage, a joint, a saw-toothed part, an electromagnetic coil, a bracket, an external extension terminal, a detection passage, an oil cylinder, an oil feeding passage, an oil feeding pipe, a coil housing, a valve rod inner hole, a guide sleeve, a valve rod, a steel ball, a joint passage, a contraction part, a piston, a piston upper hole, a piston left hole, a piston right hole, a choke plug, first springs, L-shaped seats and second springs. The external extension terminal is arranged on the electromagnetic coil; the oil cylinder is arranged on the external extension terminal; the oil cylinder is internally provided with the detection passage and the oil feeding passage; the oil feeding passage is connected with the oil feeding pipe; the piston is accommodated inside the oilcylinder; the piston is provided with the piston upper hole, the piston left hole and the piston right hole; the piston upper hole is connected with the oil feeding passage; the piston upper hole extends downwards to be branched into the piston left hole and the piston right hole; and the chock plug is arranged at the lower part of the piston.

Description

technical field [0001] The invention relates to the related field of an internal combustion engine fuel injection system, in particular to a circulating internal combustion engine fuel injection system. 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 atomization, the installation...

AI Technical Summary

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

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