Internal combustion engine cooling system for internal combustion motor train unit, internal combustion engine and cooling method

Abstract

The invention provides an internal combustion engine cooling system for an internal combustion motor train unit, an internal combustion engine and a cooling method. The system comprises a cooling controller and a cooling fan; the cooling controller is respectively connected with an internal combustion engine controller and the cooling fan; the cooling controller is used for obtaining temperatures of internal combustion engine parts acquired by an internal combustion engine sensor from the internal combustion engine controller, and controlling the rotating speed of the cooling fan according to the temperatures and a preset temperature threshold range, so that the cooling controller can control the cooling fan according to the temperatures acquired by the internal combustion engine sensor on the internal combustion engine; and compared with a traditional mode of specially setting an additional temperature sensor, the cost is reduced, and the complexity of the cooling system is lowered. In addition, the cooling controller controls the rotating speed of the cooling fan according to the temperatures and the preset temperature threshold range; and compared with a mode of only controlling rotation and rotation stop of the cooling fan in the prior art, the system is more precise in control mode.

Description

Technical field [0001] The invention relates to internal combustion engine technology, in particular to an internal combustion engine cooling system for internal combustion EMUs, an internal combustion engine and a cooling method. Background technique [0002] During the working process of the internal combustion engine used in the internal combustion EMU, because the cylinder liner, cylinder head, piston and valve and other parts are directly in contact with the high temperature gas, they are strongly heated, and the temperature of these parts is very high. In order to ensure the normal and reliable operation of the internal combustion engine, these high-temperature parts must be cooled by the cooling system. [0003] In the current cooling system, the coolant temperature sensor and the intake manifold temperature sensor are set to collect the temperature of the coolant and the intake manifold, and the cooling controller obtains the temperature collected by the coolant temperature...

AI Technical Summary

Problems solved by technology

[0004] However, in the above method, an additional temperature sensor needs to be specially installed in the internal combustion engine, which leads to high cost of the cooling system and complicated implementation

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