Fuel oil heating auxiliary device of diesel engine

Abstract

A fuel oil heating auxiliary device of a diesel engine has the functions of heating and exhausting, is provided with a control circuit, an electromagnetic gas valve and an exhaust pump device, is installed in front of an oil supply pump of the engine, and is connected with an oil conveying pipe. A small amount of fuel oil is reserved in an electric heating auxiliary device cup, the temperature of the fuel oil reaches above the cold filter plugging point, and the fuel oil is used for low-temperature starting and initial-stage running of the engine. After the engine is started, an oil tank and other oil paths are heated through the residual heat of an antifreezing solution and the tail gas, and therefore stable operation of the engine is achieved. After the engine stops, the liquid level inside the auxiliary device cup is recovered through the functions of the electromagnetic gas valve and the exhaust pump to facilitate the next time of low-temperature starting. Through the technical scheme, the fuel oil heating auxiliary device of the diesel engine has the advantages that the pre-heating time of the engine in the low-temperature starting process is largely shortened; the load of the storage battery is largely reduced; the diesel engine can use diesel with a high condensation point at low temperature, and oil cost is saved; the structure is simple, installation is convenient, the structure of an original fuel oil system is not changed, and the fuel oil heating auxiliary device of the diesel engine can be widely popularized.

Description

technical field [0001] The invention relates to a fuel oil heating device, in particular to an auxiliary device for automatically heating fuel oil of a diesel engine with the functions of heating and exhausting. Background technique [0002] When the outside temperature is low, the fluidity of high-grade (higher cold filter point) fuel can be improved by heating the fuel, so as to ensure that the engine can start smoothly and run parallel to the vehicle in a low-temperature environment. At present, the technologies used to heat fuel mainly fall into the following three categories: (1) Use the electric energy of the battery to heat the fuel tank, oil circuit and fuel filter. run. (2) The main and auxiliary fuel tanks are used for fuel supply, and the auxiliary fuel tank uses low-condensing-point fuel for engine start-up; after starting, the main fuel tank and oil pipe are heated by the electric energy of the battery, and the main fuel tank is switched to fuel supply after th...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to address the defects of the above-mentioned technologies, and provide a diesel fuel heating auxiliary device, which cooperates with an antifreeze heating device and a diesel exhaust waste heat recovery device, to solve the problems of difficulty in starting a diesel engine at low temperature and freezing on the oil road during driving, and has the characteristics of not changing Original structure, high heating efficiency, fast start-up, low energy consumption, convenient installation and use, etc.

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