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CF-4 diesel engine oil composition and its application

A technology of oil composition and diesel engine, which is applied in the direction of lubricating composition and petroleum industry, which can solve the problems of high-temperature detergency and insufficient dispersibility of sludge, and achieve the effects of inhibiting the formation of oxidation products, good technical effects, and improving dispersibility

Inactive Publication Date: 2017-11-03
CHINA PETROLEUM & CHEM CORP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is that the CF-4 diesel engine oil composition in the prior art is used in the vehicle diesel engine system, and there are problems of insufficient high-temperature detergency and sludge dispersibility. A new CF-4 diesel oil composition is provided oil composition

Method used

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  • CF-4 diesel engine oil composition and its application
  • CF-4 diesel engine oil composition and its application

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Embodiment 1～4

[0030] Add each component to the base oil in proportion at 65°C, stir for 0.5-5 hours to dissolve them all, and obtain the CF-4 diesel engine oil composition of the present invention, and the numbers in parentheses are the molecular weights of the ashless dispersants used. See Table 1 for details.

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Abstract

The invention relates to a CF-4 diesel engine oil composition and its application. The CF-4 diesel engine oil composition is mainly used for solving problems of high-temperature cleanliness and insufficient oil sludge dispersing property when the CF-4 diesel engine oil composition is applied to a vehicle diesel engine system in the prior art. The CF-4 diesel engine oil composition is prepared from, by weight, a), 2-5 parts of metal clearing agent; b), 2-5 parts of polyisobutylene-bis-succinimide ashless dispersing agent with low molecular weight, wherein the molecular weight scale is 3000-3200; c), 1-2 parts of phosphorus-containing wear resisting preservative; d), 0.1-1 part of composite antioxygen; e), 87-95 parts of basic oil. The technical scheme can well solve the problem, and can be applied to the industrial production of the CF-4 diesel engine oil composition.

Description

technical field [0001] The invention relates to a composition for CF-4 diesel engine oil and its application. Background technique [0002] When the car is driving in the city, due to the high and low speed crossing, it will cause high temperature carbon deposits and low temperature sludge at the same time. These oxidized substances will cause oil circuit blockage, piston ring wear and other problems. Improving the detergency and dispersibility of oil helps to better disperse some precursors of sludge, varnish, and carbon deposits in oil, thereby effectively inhibiting the formation of various oxidation products. [0003] Document CN101935574A discloses a CF-4 diesel engine oil composition using a high molecular weight polyisobutylene succinimide dispersant. Document CN1782049A discloses a CF-4 diesel engine oil composition using a boron-containing dispersant. CN103710084A discloses a CF-4 diesel engine oil composition compounded with calcium and magnesium. [0004] The C...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N30/04C10N40/25
CPCC10M169/044C10M2203/06C10M2205/02C10M2205/0206C10M2205/022C10M2205/024C10M2205/026C10M2205/06C10M2207/026C10M2207/123C10M2207/144C10M2207/282C10M2209/084C10M2209/1023C10M2215/064C10M2217/024C10M2219/044C10M2219/06C10M2223/045C10N2030/04C10N2040/252C10N2010/04
Inventor 魏真高娟
Owner CHINA PETROLEUM & CHEM CORP
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