Verbrennungsmotor

Details

Veröffentlichungs-Nr.

EP3591198

Aktenzeichen

EP19183942

Anmeldetag

2. Juli 2019

Veröffentlichung

25. Mai 2022

Erteilung

25. Mai 2022

Rechtsraum

EP

IPC

F02F3/10F02B77/02C25D11/04

Abstract

<div notation="docdba" type="abstract" xml:base="/api/emi/section/0859f6a2-4873-4eb3-9e27-bab1c9d75f35/image" xml:lang="en"><p>The present embodiment relates to an internal combustion engine having an anodic oxide coating (10) formed on at least a portion of an aluminum-based wall surface facing a combustion chamber (NS). The anodic oxide coating (10) has a plurality of nanopores (1c) extending substantially in the thickness direction of the anodic oxide coating (10), a first micropore (1a) extending from the surface toward the inside of the anodic oxide coating (10), and a second micropore (1b) present in the inside of the anodic oxide coating (10); the surface opening diameter of the nanopores (1c) is 0 nm or larger and smaller than 30 nm; the inside diameter of the nanopores (1c) is larger than the surface opening diameter; the film thickness of the anodic oxide coating (10) is 15 µm or larger and 130 µm or smaller; and the porosity of the anodic oxide coating (10) is 23% or more.</p></div>

Anmelder

Firma

TOYOTA JIDOSHA KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete