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Transmission oil formulation for reducing fuel consumption

A technology of transmission oil and preparation, applied in thickeners, additives, petroleum industry, etc., can solve the problems of volume efficiency reducing mechanical efficiency, etc.

Active Publication Date: 2016-01-13
EVONIK OPERATIONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the improvement in volumetric efficiency comes with reduced mechanical efficiency

Method used

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  • Transmission oil formulation for reducing fuel consumption
  • Transmission oil formulation for reducing fuel consumption
  • Transmission oil formulation for reducing fuel consumption

Examples

Experimental program
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Effect test

Embodiment

[0124] In the following examples, the following abbreviations are used:

[0125]

[0126] Synthesis of Hydroxylated Hydrogenated Polybutadiene

[0127] The prepared macromolecule alcohol has an average molecular weight M n = 4750 g / mole of hydroxypropyl terminated hydrogenated polybutadiene.

[0128] The macroalcohol is synthesized by anionic polymerization of 1,3-butadiene using butyl lithium at 20-45°C. When the desired degree of polymerization was achieved, the reaction was terminated by the addition of propylene oxide and lithium was removed by precipitation with methanol. Subsequently, the polymer is hydrogenated under a hydrogen atmosphere in the presence of a noble metal catalyst at up to 140° C. and a pressure of 200 bar. After the hydrogenation was complete, the noble metal catalyst was removed and the organic solvent was drawn off under vacuum. Finally, use the base oil Nexbase3020 (base oil of API Group II, with a kinematic viscosity of 2.1 to 2.3mm at 100°C ac...

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Abstract

The present invention relates to a transmission oil formulation comprising a base oil and a copolymer obtained by radical polymerization from a monomer composition.taineThe invention also relates to the use of the transmission oil formulation as transmission oil for reducing fuel consumption by vehicles.

Description

technical field [0001] The present invention relates to a transmission oil formulation having favorable viscosity properties, whereby the fuel consumption of vehicles can be reduced. Background technique [0002] Reducing the fuel consumption of vehicles is becoming increasingly important for various reasons. In addition to numerous improvements in the construction of the vehicle itself, efforts have also been made to minimize churning losses caused by lubricating oils, for example motor oil and transmission oil. [0003] To achieve this, the fresh oil viscosity of the lubricating oil is usually reduced. For automatic transmission fluids, for this reason, for example, in the DEXRON-VI specification of General Motors, it is required that the kinematic viscosity of fresh oil at 100 ° C does not exceed 6.4mm 2 / s. [0004] However, a limit is placed on lowering the fresh oil viscosity, since a reduction in viscosity also leads to a reduction in lubricating oil film thickness...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/18C08F290/04C10M119/10
CPCC08F212/08C08F220/14C08F290/048C10M169/04C10M2203/1025C10M2205/04C10M2205/06C10M2209/084C10M2209/086C10M2217/022C10M2217/024C08F220/1803C10N2020/04C10N2020/013C10N2020/017C10N2020/071C10N2020/02C10N2030/02C10N2030/54C10N2030/68C10N2040/042C10N2040/04C10N2030/06C08F220/10C10N2060/02C10M145/14C10M149/06
Inventor B·艾森伯格T·斯托尔
Owner EVONIK OPERATIONS GMBH