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Nanodiamond Self-Repair Fluid for Piston Engines

A piston engine and nano-diamond technology, which is applied in the petroleum industry, additives, lubricating compositions, etc., can solve the problems of complex formula, nano-diamond agglomeration, and high cost, and achieve good dispersion effect, enlarged contact area, and low cost.

Active Publication Date: 2016-03-02
CHONGQING HAILIYUN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formula is complex and the cost is high, and the applicant has proved that after a period of time, the agglomeration of nano-diamonds will also occur

Method used

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  • Nanodiamond Self-Repair Fluid for Piston Engines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Add 1 mg of nano-diamond to dispersant 1LOP-10, stir for more than 20 minutes, and then let it stand still. After the bubbles completely disappear, a black precipitate appears at the bottom, and the supernatant is poured out; wherein the nano-diamond is obtained by the explosion method. The purified nano-diamond ash powder (Lanhua Institute of Chinese Academy of Sciences) has a purity greater than 90%, and is a spherical particle with a particle diameter of 2-4nm and uniform particle diameter.

[0019] (2) Add the above supernatant to the lubricating oil according to the mass percentage of the supernatant and the lubricating oil being 20%:80%, and stir and mix to obtain the self-repairing liquid. Before using the automatic repair liquid of the present invention, according to the mass ratio of the automatic repair liquid and lubricating oil, dilute again according to the ratio of 10-30%: 90%-70%, and then add 100ml of the above-mentioned diluent according to every 1L ...

Embodiment 2

[0021] (1) Add 0.8 mg of nano-diamond to dispersant 1LOP-10, stir for more than 20 minutes, and then let it stand still. After the bubbles completely disappear, a black precipitate appears at the bottom, and the supernatant is poured out; the nano-diamond is prepared by the explosion method. The purified nano-diamond ash powder (Lanhua Institute of Chinese Academy of Sciences) has a purity greater than 90%, and is a spherical particle with a particle diameter of 2-4nm and uniform particle diameter.

[0022] (2) Add the above supernatant to the lubricating oil according to the mass percentage of supernatant and lubricating oil: 30%:70%, stir and mix to obtain the automatic repairing liquid. Before using the automatic repair liquid of the present invention, according to the mass ratio of the automatic repair liquid and lubricating oil, dilute again according to the ratio of 10-30%: 90%-70%, and then add 100ml of the above-mentioned diluent according to every 1L of motorcycle engi...

Embodiment 3

[0024] (1) Add 1.2 mg of nano-diamonds to the dispersant 1LOP-10, stir for more than 20 minutes, and then let it stand still. After the bubbles completely disappear, a black precipitate appears at the bottom, and the supernatant is poured out; the nano-diamonds are prepared by the explosion method. The purified nano-diamond ash powder (Lanhua Institute of Chinese Academy of Sciences) has a purity greater than 90%, and is a spherical particle with a particle diameter of 2-4nm and uniform particle diameter.

[0025] (2) Add the above-mentioned supernatant to the lubricating oil according to the mass percentage of the supernatant and the lubricating oil being 10%:90%, and stir and mix to obtain the self-repairing liquid. Before using the automatic repair liquid of the present invention, according to the mass ratio of the automatic repair liquid and lubricating oil, dilute again according to the ratio of 10-30%: 90%-70%, and then add 100ml of the above-mentioned diluent according t...

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Abstract

The invention discloses a nano-diamond automatic repair liquid for a reciprocating piston engine. The liquid is characterized by being prepared by the following steps: (1) adding a nano-diamond into a dispersant OP-10, stirring for over 20 minutes, then standing, and after bubbles fully disappear and black precipitates appear at the bottom, pouring out a supernate, wherein the nano-diamond is a spherical particle, the grain size of which is 2-4n, and the addition proportion of OP-10 and the nano-diamond is 0.8-1.2mg of nano-diamond per L of OP-10; and (2) adding the supernate into lubricating oil, and stirring and mixing to obtain the automatic repair liquid, wherein the weight ratio of the supernate and the lubricating oil in percentage by weight is (10-30%):(90-70%). The nano-diamond in the automatic repair liquid is good in dispersing effect and stable and can be placed for a long time. The repair liquid is simple in formula, low in cost and simple in preparation method.

Description

technical field [0001] The invention relates to an additive in the field of lubricating oil for piston engines, in particular to a nano-diamond automatic repair fluid for piston engines. Background technique [0002] In recent years, due to its large specific surface area and high hardness, nano-diamonds have been added to lubricating oil to form micro-grinding in the friction pair, smooth the micron convex front in the friction pair, and eliminate the friction generated during the operation of the friction pair. Scratches, tearing, gluing, and seizures make the contact area of ​​the friction pair expand, the friction coefficient is small, and a spherical nano-diamond surface body is formed, and the lubrication changes from sliding friction to rolling friction, which is more conducive to lubrication. However, in order to achieve the above-mentioned effects, how to uniformly disperse the nano-diamonds in the lubricating oil is the key to this technical solution. [0003] For...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M141/02C10M125/02C10M129/16C10N30/04C10N30/06C10N40/25
Inventor 李家诚许效鸿王祖海
Owner CHONGQING HAILIYUN TECH
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