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Sliding elements for internal combustion engines

A technology for sliding components and internal combustion engines, applied to engine components, mechanical equipment, vacuum evaporation coating, etc., can solve problems such as reducing internal stress and reducing friction

Active Publication Date: 2021-07-06
MAHLE METAL LEVE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Despite the efforts disclosed in the documents of the prior art, a solution has not yet been found that produces good results in the finished product, that is to say, a reduction in friction and ultimately wear, reduction in internal stresses while ensuring high hardness and durability of the ring sexual piston ring

Method used

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  • Sliding elements for internal combustion engines
  • Sliding elements for internal combustion engines
  • Sliding elements for internal combustion engines

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Embodiment Construction

[0029] The present invention relates to a sliding element, like a piston ring for an internal combustion engine, which has a hard amorphous carbon coating comprising solid lubricant nanoparticles which, in addition to ensuring a high hardness, enables a reduction in friction, as a result, The wear of the sliding surface of the ring is reduced, and at the same time, the internal stress generated in the application of the hard amorphous carbon coating can be reduced.

[0030] In an alternative preferred configuration, the sliding element of the invention may be an engine component maintained in contact with a thin layer of lubricating fluid, which is subject to wear, such as especially cylinder liners, wiper piston rings, first groove piston rings.

[0031] Initially, it should be noted that if figure 1 As illustrated, the sliding element of the invention is preferably a piston ring 10 for an internal combustion engine operating at high load and / or power. Typically these piston...

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Abstract

The invention relates to a sliding element for an internal combustion engine, having a hard amorphous carbon coating comprising solid lubricant nanoparticles, enabling a reduction in friction, as a result, in addition to ensuring a high hardness, also reducing the sliding of the ring Wear on the surface while reducing the internal stress generated in the application of the hard amorphous carbon coating.

Description

technical field [0001] The invention relates to a sliding element, such as a piston ring for an internal combustion engine, having a hard amorphous carbon coating comprising nanoparticles of a solid lubricant capable of reducing friction and wear in addition to ensuring high hardness, At the same time, the internal stress generated in the application of the hard amorphous carbon coating can be reduced. Background technique [0002] Whether diesel cycle, Otto cycle, two-stroke or three-stroke internal combustion engine comprises at least one piston ring. Piston rings act to seal the space between the cylinder liner and the piston body, insulating the combustion chamber from the other internal parts of the engine. Piston rings arranged radially on the bottom of the piston body prevent combustion gases from escaping from the combustion chamber in the direction of the sump and prevent engine oil from penetrating into the combustion chamber. [0003] Typically, the engine has t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J9/26C23C14/02C23C14/06C23C14/22C23C14/34C23C14/32
CPCC23C14/024C23C14/025C23C14/0605C23C14/325F16J9/26C23C14/0635C23C14/16C23C14/3407F16J9/28
Inventor 茹利亚诺·阿韦拉尔·阿劳霍保罗·若泽·达·罗沙·莫尔登特
Owner MAHLE METAL LEVE