A flame glow plug

Abstract

The invention discloses a flame glow plug, which comprises a flame cover, a fuel injector fixing seat, a fixing seat mounting plate, a heating rod fixing seat and a heating rod; the flame cover is composed of a semicircular tubular structure at the head and a circular tubular structure at the bottom, and The structure is evenly distributed with heat holes along the circumferential direction; the lower end of the heating rod holder head is provided with two symmetrically installed heat pipes, and a row of through holes is processed on the connecting plate ribs of the two heat pipes, and the heat pipe is a three-quarters circular tubular structure , insert the heating rod into the heating rod fixing seat, part of the surface of the heating rod is exposed in the flame cover through the gap of the heating tube; three waist-shaped through grooves are processed on the fixing seat mounting plate, and the middle slot hole is used for injector to flame Fuel is sprayed into the cover, and the injector fixing seat is installed in the slot holes on both sides; the fixing seat mounting plate is fixedly connected to the open side surface of the head of the flame cover; The oil is sprayed obliquely downward; the invention can fully vaporize and burn the fuel.

Description

technical field [0001] The invention belongs to the technical field of engine low-temperature starting, and in particular relates to a flame glow plug. Background technique [0002] Low-temperature starting performance is one of the important performances of diesel engines. Under low-temperature conditions, the intake air temperature, fuel temperature, and body temperature are low, and the fuel atomization effect is poor, resulting in difficult starting, poor economy and power, and serious emission pollution. Diesel engine performance and life. The intake air is heated by the flame glow plug, which can improve the fuel atomization effect, increase the probability of ignition, and effectively improve the low-temperature starting performance. [0003] Existing flame glow plugs used for heating intake air are mainly composed of a shell, a heating rod, an oil inlet nozzle, and a flame cover that leads out of the heat hole. During operation, diesel is supplied to the housing thr...

AI Technical Summary

Problems solved by technology

[0004] In the existing flame glow plug, the positions of the oil inlet nozzle and the heating rod are relatively fixed. When the oil inlet flow rate and voltage are constant, the heating rod has a certain effect on the vaporization of diesel oil, which leads to a single flame glow plug. The performance itself cannot be adjusted according to the demand; on the other hand, when the existing flame glow plug is working, a relatively large amount of liquid diesel oil flows directly to the heating rod and is in close contact with the heating rod, which may cause insufficient combustion. Coking, carbon deposition and other problems

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