Heavy-duty truck cooling system matched with LNG engine of national VI emission standard

Abstract

The invention relates to the field of automobile cooling systems, in particular to a heavy-duty truck cooling system matched with an LNG engine of the national VI emission standard. The function of the heavy-duty truck cooling system matched with the LNG engine of the national VI emission standard is that the quantity of heat emitted by an engine can be cooled in time to enable the engine to remain at an appropriate operating temperature to ensure the normal operation of the engine. The heavy-duty truck cooling system matched with the LNG engine of the national VI emission standard comprises amain radiator and an intercooler fixed to one end of the main radiator, wherein an electrically controlled silicone oil fan located at the front end of the engine is installed at the other end, opposite to the intercooler, of the main radiator, a main wind protecting cover is arranged between the electrically controlled silicone oil fan and the main radiator in an annular mode, a top cavity of the main radiator is connected with a water outlet of the engine through a water outlet hose of the engine, a bottom cavity of the main radiator is connected to a top cavity of an auxiliary radiator through a radiator water outlet pipe, and the auxiliary radiator is connected to a water return opening of the engine through a water outlet pipe of the auxiliary radiator. According to the heavy-duty truck cooling system matched with the LNG engine of the national VI emission standard, an innovation scheme of a main system + an auxiliary system is provided for the first time, and the heat dissipation problem of the LNG engine of the national VI emission standard is effectively solved.

Description

technical field [0001] The invention relates to the field of automobile cooling systems, in particular to a heavy-duty truck cooling system matching the National VI LNG gas engine, which can cool the heat emitted by the engine in time, maintain the engine at a suitable working temperature, and ensure the normal operation of the engine. Background technique [0002] When the engine is running, a large amount of energy will not be fully utilized and will be dissipated in the form of heat. The parts in contact with the high-temperature gas will be strongly heated. Abnormal (deflagration, early combustion, etc.), deterioration and burning of engine oil, increased friction and wear of parts, causing overall deterioration of engine power, economy, reliability and durability. However, if the cooling is too strong, the engine oil will be diluted by combustion, the engine will work rough, the loss of heat dissipation and friction will increase, and the wear of parts will increase, wh...

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Problems solved by technology

[0005] Models matching the National VI LNG gas engine are limited by the vehicle layout space such as the width of the engine compartment and the width of the frame. Can't enlarge

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