Patent · US Active

Tribological system of an internal combustion engine with a coating

US10677355B2 · kind B2 · utility

0Cited by

2References

19Claims

0Family size

Assignee

Oerlikon Surface Solutions AG, Pfäffikon · CH

Inventors

Peter Ernst · Hattersheim, DE
Jurgen Ramm · Maienfeld, CH
Florian Seibert · Sevelen, CH
Beno Widrig · Bad Ragaz, CH

Key dates

Filing date	Feb 9, 2017
Grant date	Jun 9, 2020
Priority date	—
Expiry date	Feb 9, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02B2023/0612
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The present invention relates to a tribological system (1; 2) comprising a first body (102; 105) and a second body (101; 107), which each form a component of an internal combustion engine (100), in particular a piston (102), a piston ring (105) or a cylinder (101, 107), and the surfaces (112, 108, 113) of which have a first and a second material area (11, 12) which come into contact with each other at least in some regions during operation and form a tribological contact, wherein the first and/or the second material area (11, 12) is formed as a layer on the basis of chromium oxide or aluminum chromium oxide. The invention also relates to an internal combustion engine (100) having such a system (1; 2).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.