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Water-free coolant for engine

A water cooling and engine technology, applied in heat exchange materials, chemical instruments and methods, etc., can solve problems such as easy evaporation, rust, and freezing

Inactive Publication Date: 2011-11-23
张显军 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These types of engine coolants on the market have a water content of 20%-80%, so there is a common problem, that is, the problems caused by water, such as low boiling point, easy evaporation, frequent replenishment of water, etc., use water alone as engine refrigerant , there are still technical problems such as boiling, scale, air resistance, cavitation, rust, freezing, and even swelling of the body and corrosion of the engine cooling system.

Method used

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  • Water-free coolant for engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1.2-Propanediol 70%, ethylene glycol 28.7%, mercaptobenzothiazole 0.4%, sodium benzoate 0.4%, sodium molybdate 0.35%, sodium hydroxide 0.15%, all materials are mixed and stirred at 30°C±5°C until All dissolved, filtered and subpackaged.

Embodiment 2

[0023] 1.2-Propanediol 60%, 1.3-Propanediol 15%, Diethylene Glycol Monobutyl Ether 23.6%, Tolyltriazole 0.4%, Sodium Nitrate 0.3%, Sodium Molybdate 0.4%, Sodium Carbonate 0.3%, each material Mix, stir at 30°C±5°C until completely dissolved, filter, and dispense.

Embodiment 3

[0025] 1. 70% of 2-propanediol, 28.75% of diethylene glycol, 0.4% of methyltriazole, 0.3% of sodium nitrate, 0.4% of sodium molybdate, 0.15% of sodium hydroxide, all materials are mixed at 30℃±5℃ Stir until all dissolve, filter and pack.

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Abstract

The invention relates to a water-free coolant for an engine, particularly relates to a water-free coolant which does not contain a water component and contain not less than 55wt% of propylene glycol used as a main material, and particularly relates to a low-freezing-point, high-boiling-point, corrosion-resistant, energy-saving and environmentally-friendly long-lasting water-free coolant for the engine.

Description

technical field [0001] The invention relates to an anhydrous cooling liquid for engines, in particular to a long-lasting cooling liquid for engines with low freezing point, high boiling point and corrosion resistance. technical background [0002] The application of engine coolant has been used for more than one hundred years with the extension of engines and automobiles. At first, water was used as a refrigerant to cool the engine. With the advancement of technology, so far, water has been mixed with ethanol, ethylene glycol, diethylene glycol, glycerol, propylene glycol and other substances as base materials, and some functional additives have been added to form various types of water-based coolants or antifreezes. . These types of engine coolants on the market have a water content of 20%-80%, so there is a common problem, that is, the problems caused by water, such as low boiling point, easy evaporation, frequent replenishment of water, etc., use water alone as engine re...

Claims

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Application Information

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IPC IPC(8): C09K5/20C23F11/16C23F11/14C23F11/18
Inventor 张显军徐朝义
Owner 张显军