Engine coolant

A technology of engine coolant and tricarboxylic acid, which is applied in the field of chemical combination, can solve problems such as insufficient coolant technology, cavitation corrosion, and blackening of cast aluminum, and achieve long-term corrosion inhibition, corrosion prevention, and hard water resistance strong effect

Active Publication Date: 2010-07-07
北京蓝星清洗有限公司
3 Cites 32 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0007] The present invention overcomes the above technical deficiencies of the existing all-organic acid engine coolant, solves the problems of cast aluminum blackening and cavitation corrosion, and provides an all-organic acid coolant that has a comprehensive protection effect on the multi-metal of the coo...
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Abstract

The invention provides an all-organic type engine coolant which comprises glycol, fat carboxylic acid, tricarboxylic acid, benzoic acid, tri (2-ethylhexoic acid) phosphonate, imidazoles compound, defoamer and deionized water. The engine coolant of the invention contains no inorganic salts, such as amines, borate, nitrate, nitrite, silicate, and the like, so the engine coolant is environment-friendly, can prevent all the contacted metal and nonmetal materials in the engine cooling system from being corroded, has an obvious engine coolant effect on various metals, particularly solves the problem that the cast aluminum using a traditional organic acid engine coolant becomes black generally, can be stabled in a relative low density and bigger PH value range, and has the advantages of long-time storage and use.

Application Domain

Technology Topic

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  • Engine coolant
  • Engine coolant
  • Engine coolant

Examples

  • Experimental program(1)
  • Effect test(1)

Example Embodiment

[0029] After a large number of screening experiments, the engine coolant of the present invention has obtained a formula combination with economic, reasonable and excellent performance. Table 1 shows the formulas of 8 examples:
[0030] Table 1
[0031]
[0032]
[0033] The performance index data of the engine coolant of the present invention is shown in Table 2
[0034] Table 2 Performance Index
[0035]
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Description & Claims & Application Information

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