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Lubricants with enhanced energy efficiency

A technology of lubricants and lubricant compositions, applied in the directions of lubricant compositions, base materials, petroleum industry, etc., can solve problems such as corrosion

Inactive Publication Date: 2012-12-26
COGNIS IP MANAGEMENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Gearless direct drive wind turbines have been developed, which have the advantage of having fewer moving parts to keep, but also have their own disadvantages, being generally heavier and often open-mode to allow cold air to pass through, possibly causing an increased risk of corrosion, especially in offshore installations

Method used

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  • Lubricants with enhanced energy efficiency
  • Lubricants with enhanced energy efficiency
  • Lubricants with enhanced energy efficiency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] Tests have shown that the energy efficiency of the lubricant according to the present teaching is increased. In this regard, according to DIN51354, in the modified back-to-back gear test rigging (see figure 1 ) to measure the friction loss of cylindrical gears. The test pinion and the test gear on the test gear are mounted on two parallel shafts connected to the driven gear segment. In the driven gear section, the same two gears as the test gear are installed so that the equal two sections are approached in the energy cycle. The pinion shaft consists of two separate parts, which are connected by a load clutch. A defined static torque is applied by twisting the load clutch by applying a prescribed weight on the load lever. Electric motors only need to compensate for frictional losses in the energy cycle. To measure torque loss, a torque meter shaft is mounted between the motor and the driven gearbox. Measure the applied load with a load torque meter shaft close to t...

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PUM

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Abstract

Lubricant compositions useful especially for the lubrification of gears, having a boundary loss coefficient X LG of 0.6 to 0.8 measured at temperatures of 40 to 120 °C with a modified method according to DIN 51354, whereby the lubricant composition contains of a base oil a optional additives, whereby the base oil is selected from complex ester, said, said complex ester having a kinematic viscosity at 40°C of greater than 400 and up to 50 000 mm 2 / s.

Description

technical field [0001] The present invention relates to lubricants, especially industrial lubricants, including hydraulic oils, lubricants for engines and turbine oils, especially lubricants for wind turbines. Background technique [0002] The most important function of a lubricant is to reduce friction and wear. Besides the important applications in internal combustion engines, vehicle and industrial transmissions, compressors, turbines or hydraulic systems, there are many other applications which often require specially formulated lubricants. [0003] Gear lubricants are very important for transmission. In addition to the important function of lubricating the sliding and rolling contact, the lubricating oil also performs the task of cooling and removing the frictional heat generated in the sliding and rolling contact. There is a big difference between the friction of gear drives and the friction of journals and rolling bearings, due to the fact that the lubrication condi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M105/42C10M111/02C10N20/02C10N40/04C10N40/08C10N30/06
CPCC10N2230/02C10N2240/04C10N2230/06C10M2207/301C10M2209/1033C10M2205/0285C10M111/00C10M2219/00C10M2203/1006C10M2223/00C10N2220/022C10M105/42C10N2020/02C10N2030/02C10N2030/06C10N2040/04C10M111/02
Inventor M·舍雷尔D·雷特梅尔
Owner COGNIS IP MANAGEMENT GMBH