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Lubricant additive for free-piston-type linear power generator and preparation method of lubricant additive

A lubricating oil additive and linear generator technology, applied in additives, lubricating compositions, petroleum industry, etc., can solve the problems of low ash content in detergency performance, insufficient fuel combustion, etc., and achieve low ash content, good lubricating performance, and piston detergency performance Excellent effect

Active Publication Date: 2019-02-22
NANKAI UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is also different from the two-stroke engine. Since FPEG has no crankshaft and is completely controlled by air springs, the upper and lower dead centers of the piston are not fixed, and the compression ratio of the cylinder is no longer a fixed value, which may also cause fuel combustion. Sufficient, which requires the oil to have the characteristics of better cleaning performance and low ash content

Method used

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  • Lubricant additive for free-piston-type linear power generator and preparation method of lubricant additive
  • Lubricant additive for free-piston-type linear power generator and preparation method of lubricant additive
  • Lubricant additive for free-piston-type linear power generator and preparation method of lubricant additive

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Experimental program
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Effect test

Embodiment 1

[0018] The free-piston linear generator lubricating oil additive provided by the present embodiment consists of the following components in parts by weight:

[0019]

[0020] The preparation method is to weigh the above-mentioned metal detergent, ashless dispersant and phenolic ashless antioxidant in proportion, then mix them at a temperature of 70° C., and fully stir them for 3 hours until they are evenly stirred.

Embodiment 2

[0022] The free-piston linear generator lubricating oil additive provided by the present embodiment consists of the following components in parts by weight:

[0023]

[0024]

[0025] The preparation method is to weigh the above-mentioned metal detergent, ashless dispersant and phenolic ashless antioxidant in proportion, then mix them at a temperature of 80° C., and fully stir them for 2.5 hours until they are evenly stirred.

Embodiment 3

[0027] The free-piston linear generator lubricating oil additive provided by the present embodiment consists of the following components in parts by weight:

[0028]

[0029] The preparation method is to weigh the above-mentioned metal detergent, ashless dispersant and phenolic ashless antioxidant in proportion, then mix them at a temperature of 90° C., and fully stir them for 2 hours until they are evenly stirred.

[0030] The biodegradable ester synthetic oil is used as base oil, polyisobutylene and 5% by weight of the above-mentioned compounding agent are added to prepare lubricating oil. The national standard GB / T 2433 is used to test the sulfate ash content of oil products. The smaller the value, the less ash produced after combustion. The detergency and dispersibility of the oil was evaluated by the coke plate test. The test conditions were: plate temperature 330°C, oil temperature 100°C, stirring for 15s, stop for 45s, and the test period was 0.5h. The smaller the ...

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Abstract

The invention relates to a lubricant additive for a free-piston-type linear power generator and a preparation method of the lubricant additive. The lubricant additive comprises a metal detergent, an ashless dispersant and a phenol ashless antioxidant. The preparation method comprises the steps that the metal detergent, the ashless dispersant and the phenol ashless antioxidant are weighed accordingto the ratio, then mixed at the temperature of 70-90 DEG C and fully stirred for 2-3 hours till the metal detergent, the ashless dispersant and the phenol ashless antioxidant are uniformly stirred. Lubricant prepared by utilizing the additive can meet the lubricating requirement of the free-piston-type linear power generator and has the characteristics of low ash content, excellent piston detergency performance and good lubricating performance.

Description

technical field [0001] The invention belongs to the technical field of lubricating materials, in particular to a lubricating oil additive for free-piston linear generators. Background technique [0002] The free-piston linear generator is an innovative and highly operable future power device, and it is one of the research directions of hybrid power for new energy vehicles. As a new type of series hybrid power device, it has received extensive attention from many research institutions and companies at home and abroad in the past ten years. The device is directly coupled with a free-piston internal combustion engine and a linear generator. The combustion chamber expands to do work, and the gas spring recovers after storing energy, thereby driving the linear generator to reciprocate to generate electricity. [0003] Toyota has transformed the device from theory to reality and developed a free piston linear generator (FPEG). FPEG generates electricity through a power generatio...

Claims

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Application Information

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IPC IPC(8): C10M161/00C10N30/04C10N30/06
CPCC10M161/00C10M2207/289C10M2215/086C10M2217/04C10M2219/044C10M2219/087C10N2030/04C10N2030/06C10N2030/52
Inventor 王庆瑞孟祥云何良年叶锋崔晓莹粟斌
Owner NANKAI UNIV
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