Method for coating a cylinder of an internal combustion engine, and cylinder for an internal combustion engine

A technology for an internal combustion engine and a cylinder, which is applied to the cylinder field of an internal combustion engine, and can solve the problems of unusable cylinders and unusable cylinders.

Active Publication Date: 2018-03-16
DR ING H C F PORSCHE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to this, the cylinder becomes unusable and can no longer be used

Method used

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  • Method for coating a cylinder of an internal combustion engine, and cylinder for an internal combustion engine
  • Method for coating a cylinder of an internal combustion engine, and cylinder for an internal combustion engine
  • Method for coating a cylinder of an internal combustion engine, and cylinder for an internal combustion engine

Examples

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Embodiment Construction

[0026] FIG. 1 shows a schematic illustration of a cylinder 1 of an internal combustion engine 2 during a method for coating according to the prior art.

[0027] Cylinder 1 is designed in the shape of a hollow cylinder and has an interior space 3 , in which a piston, not shown in detail, is accommodated during operation of internal combustion engine 2 to perform an oscillating movement. In the region of the running surface section 4 of the cylinder 1 , a coating of the cylinder 1 is provided on the piston running surface 5 , which is formed facing the interior 3 , in order to reduce wear between the cylinder 1 and the piston. The running surface section 4 is the section of the cylinder 1 which is in contact with the piston or its piston rings during operation.

[0028] The cylinder 1 is embodied in the crankcase 7 and comprises: a bearing section surface 13 of the bearing section 6 of the crankcase 7 , which is provided for supporting a crankshaft (not shown in detail) of the i...

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PUM

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Abstract

A method is provided for coating a cylinder of an internal combustion engine. The cylinder (1) has a cylinder lining surface section (4) with a piston running surface (5) that faces an interior space(3) of the cylinder (1) and along which a piston of the internal combustion engine (2) can be moved. The cylinder (1) also has at least one further surface that adjoins the interior space (3). The further surface may be a bearing section surface (13) for mounting a crankshaft of the internal combustion engine (2), and a run-out section surface (14) between the bearing section (6) and the cylinderlining surface section (4). The method includes forming a defined structure on the further surface and then spraying a coating on the piston running surface (5). In addition, the invention provides acylinder (1) of an internal combustion engine which at least temporarily has the determined structure.

Description

technical field [0001] The invention relates to a method for coating a cylinder of an internal combustion engine according to the preamble of claim 1 and a cylinder for an internal combustion engine according to claim 11 . Background technique [0002] Methods are known for coating cylinders of internal combustion engines. The coating of the cylinder on its piston running surface serves to reduce wear in the operation of the piston of the internal combustion engine, which moves oscillatingly in the cylinder. Coating is carried out by spraying the piston running face with a plasma spray. [0003] Patent document EP 2 112 359 B1 discloses a cylinder whose piston running surface has a roughening consisting of grooves or helical contours. The roughness has undercuts, which lead to an increased adhesion surface for the coating of the cylinder. Furthermore, this results in improved adhesion of the coating. [0004] From patent document EP 1 334 268 B1 there is known a method f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F1/18
CPCF02F1/18C23C4/18C23C4/134F02B77/02F02F1/00F16J10/04
Inventor H·克隆普
Owner DR ING H C F PORSCHE AG
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