Method of machining for producing a bearing surface on a cylinder wall of a cylinder liner of an internal combustion engine

Abstract

The invention proposes a method of machining for producing a bearing surface 1 on a cylinder wall 2 of a cylinder liner of a reciprocating internal combustion engine,wherein the piston is designed toreciprocate along the working faces in the direction of the cylinder axis 4 in the running state in the cylinder liner 3. The method includes: producing cylinder liner material 31 and cutting the cyclinder eall by the machining device, wherein the machining tool and the cylinder wall rotate the cylinder axis at a scheduled rotary speed, and simultaneously moves relative to each other at a scheduled cutting feed along the cylinder axis, so as to perform fine cutting in the cylinder wall 2 in the circumferential direction to produce the capillary type fine structure (6) with circulating capillaries (61) in the cylinder wall, wherein the fine structure spirally extends along the cylinder axis 4 in the cylinder wall 2. In a lateral direction working process, a cross connection (7) is formed between the circulating capillaries (61), so that the capillary type fine structure are roughly held. And the method also provides a cylinder liner 3 manufactured by the method.

Description

technical field [0001] The invention relates to a machining method for the manufacture of a working surface on the cylinder wall of a cylinder liner of a reciprocating piston internal combustion engine, especially a large diesel engine operating at low speed, and to a cylinder according to the preambles of the independent claims of the corresponding class set. Background technique [0002] Large diesel engines are often used as drive units in ships or in static operation (or running), for example for driving large generators that generate electrical energy. In this regard, engines are usually operated permanently for relatively long periods of time, which places high demands on operational safety and availability. Therefore, in particular long maintenance intervals, low wear and economical handling of fuel and operating materials are central criteria for operating (operating) machines for the operator. The piston operating characteristics of these large low-speed diesel en...

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Problems solved by technology

[0032] In particular, the oil stagnation volume in the running surface of the cylinder liner is thus negatively affected across the board, the required homogeneity of the oil film is no longer adequately ensured, and likewise the dynamic distribution of the lubricating oil on the cylinder running surface is due to the cross-section ( The structure of the cross-sectional (or transverse) corrugations formed by honing is at least disproportionately severely hampered or at least disadvantageously pre-set

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