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A kind of free-piston type linear generator lubricating oil additive and preparation method thereof

A technology for lubricating oil additives and linear generators, which can be used in additives, lubricating compositions, petroleum industry, etc., and can solve the problems of insufficient fuel combustion and low ash content in cleaning performance.

Active Publication Date: 2021-07-06
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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  • A kind of free-piston type linear generator lubricating oil additive and preparation method thereof
  • A kind of free-piston type linear generator lubricating oil additive and preparation method thereof
  • A kind of free-piston type linear generator lubricating oil additive and preparation method thereof

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Experimental program
Comparison scheme
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 free-piston linear generator lubricating oil additive and a preparation method thereof. Additives include metal detergents, ashless dispersants and phenolic ashless antioxidants. The preparation method is to weigh the metal detergent, the ashless dispersant and the phenolic ashless antioxidant in proportion, then mix them at a temperature of 70°C-90°C, and fully stir them for 2-3 hours until they are evenly stirred. The lubricating oil prepared by using this additive can meet the lubricating requirements of the free-piston linear generator under harsh conditions, and has the characteristics of low ash content, excellent piston cleaning 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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Patent Type & Authority Patents(China)
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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