An auxiliary cold start device and control method for diesel engines suitable for plateau alpine environments

Abstract

The invention discloses a device suitable for assisting cold starting of a diesel engine under a high altitude and high cold environment and a control method. The device adopts a heater and an infrared coating filtering net for heating inflow air, a first air inflow branch pipe and a second air inflow branch pipe form an air flow loop to repeatedly heat the inflow air, and the heating efficiency is high. An air storage tank is arranged so that the certain amount of inflow air can be stored so as to provide the enough high-temperature inflow air to assist cold starting, and thus transition fromcold starting to the normal work state of the engine is completed. Additionally, before cold starting, cooling water is heated through an electric heating wire, the temperature of an engine body is advantageously increased before the engine is started, cold starting of the diesel engine can be effectively assisted under the high altitude and high cold environment, and transition from cold starting low-temperature cooling water to the cooling water with the normal work temperature is rapidly completed.

Description

technical field [0001] The invention relates to an auxiliary cold start device and a control method, in particular to an auxiliary cold start device and a control method for a diesel engine suitable for a plateau alpine environment. Background technique [0002] Due to its high power, long life, good power performance, high thermal efficiency, and good fuel economy, diesel engines are widely used in heavy-duty vehicles, large buses, construction machinery, ships, generator sets, etc. [0003] In the world's geographical environment, my country's land area is vast and the geographical environment is very complex, and the plateau area accounts for 37% of the total land area. Due to the high altitude and low annual average temperature in the plateau area, the plateau area is often accompanied by high cold. The climate characteristics of the plateau area: low atmospheric pressure, low air density, low air oxygen content, cold weather, and large temperature difference between da...

AI Technical Summary

Problems solved by technology

In recent years, many measures have been adopted for low-temperature starting of diesel engines at home and abroad, but there are few effective auxiliary starting measures.

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