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
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI 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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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

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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.

Description

technical field [0001] The invention relates to a formula of piston material, mainly a formula of gasoline engine piston. Background technique [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 determines the piston and cylinder. There must be a large gap between the sleeves, so the sealing performance is poor, the air leakage is serious, and even the cylinder is prone to knocking, which consumes the power of the engine and limits the life of the engine. Contents of the invention [0003] The technical problem to be solved by the invention is to provide a formula for gasoline engine pistons. [0004] The technical solution adopted by the present invention to solve its technical problems. The formula of this gasoline engine ...

Claims

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Application Information

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IPC IPC(8): C22C21/02F02F3/00
Inventor 周芝山
Owner 周芝山
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