Formula for piston of gasoline engine

A gasoline engine and piston technology, applied to pistons, mechanical equipment, engine components, etc., can solve the problems of prone to knocking, limited engine life, poor sealing performance, etc., and achieve good sealing, anti-friction and anti-wear performance, and reduced power Effects of consumption and life extension

Inactive Publication Date: 2002-08-07
周芝山
0 Cites 11 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0002] Most of the existing piston materials use ordinary 108 Al material or alloy. The disadvantage is that the expansion of the piston material is larger than that of the cylinder liner material at high temperature. The piston of this material det...
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Abstract

The formula of piston for petrol engine comprises (wt%) Si 11%-13%, Cu 0.8%-1.5%, Mg 0.8%-1.3%, Mn 0.01%-0.2%, Fe 0.01%-0.5%, Ni 1%-1.5%, Zn 0.01%-0.2%, Ti 0.01%-0.2%, Te 0.1%-0.4%, Li 0.01%-0.1%, Co0.01%-0.1% and the rest is Al. Said piston can reduce gap between piston and cylinder jacket, and its working surface layer contains special substance capable of firmly combining with engine oil, so taht its sealing and antifriction properties are good, and it can prolong the life of engine.

Application Domain

Machines/enginesPistons

Technology Topic

PistonEngineering +5

Examples

  • Experimental program(2)

Example Embodiment

[0008] Example 1: This gasoline engine piston formula contains 11% Si, 1.5% Cu, 0.8% Mg, 0.1% Mn, 0.4% Fe, 1.5% Ni, and 0.1% Zn by weight. 0.1% Ti, 0.2% Te, 0.05% Li, 0.01% Co, and the rest is No. 108 Al material.

Example Embodiment

[0009] Example 2: This gasoline engine piston formula contains 13% Si, 1% Cu, 1% Mg, 0.1% Mn, 0.4% Fe, 1% Ni, 0.1% Zn, by weight. 0.1% Ti, 0.2% Te, 0.05% Li, 0.01% Co, and the rest is Al.
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PUM

no PUM

Description & Claims & Application Information

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