An engine cooling system based on phase change fluid and water

Abstract

The invention discloses an engine cooling system based on phase change fluid / water. The engine cooling system comprises an engine and a cooling-water cooling system, wherein the cooling-water cooling system comprises a first pump, a first adjustment valve and a heat exchanger; the first pump is communicated with the first adjustment valve and the heat exchanger respectively; a cooling water inlet is formed in an engine body of the engine; a cooling cavity is formed between the engine body of the engine and a cylinder sleeve; the cooling water inlet is communicated with the cooling cavity; a cooling water outlet is formed in a cylinder cover of the engine; the first adjustment valve is communicated with the cooling water inlet; the cooling water outlet is communicated with the heat exchanger; the engine cooling system based on the phase change fluid / water is characterized by being provided with a phase change fluid cooling system; the phase change fluid cooling system comprises a second pump and a second adjustment valve; a spiral cooling pipe is fixedly arranged in the cooling cavity; the second pump is communicated with the second adjustment valve and the heat exchanger respectively; the second adjustment valve is communicated with an inlet of the cooling pipe; an outlet of the cooling pipe is communicated with the heat exchanger. The engine cooling system has the advantages that the circulating flow of a cooling medium is greatly reduced, pump consumption is reduced, and an energy-saving effect is achieved; meanwhile, the phase change fluid absorbs heat in the engine in a phase change latent heat manner; the temperature of the cylinder body of the engine is more uniform as the temperature region of a phase change material is narrower.

Description

technical field [0001] The invention relates to a cooling system of an engine, in particular to an engine cooling system based on phase change fluid / water. Background technique [0002] At present, most high-power engine cooling systems use water as the cooling medium, and the water temperature is basically 70-90°C. Since the cooling water does not undergo a phase change during the delivery process in this temperature range, the heat delivered is sensible heat, and the heat storage density Therefore, under a certain temperature difference, the heat that the unit volume fluid of the cooling water can "carry" is very limited. For high-power engines and other occasions that require high heat transfer, the required cooling water flow rate is very large, which not only causes the entire cooling system to be huge, but also consumes a large amount of transfer pump work. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a...

AI Technical Summary

Problems solved by technology

For high-power engines and other occasions that require high heat transfer, the required cooling water flow rate is very large, which not only causes the entire cooling system to be huge, but also consumes a lot of pump work.

Images