Title:
COATING CYLINDER BORES WITHOUT PRIOR ACTIVATION OF SURFACE
Document Type and Number:
Japanese Patent JP2022191217
Kind Code:
A
Abstract:
To provide a method that allows the thermally sprayed layer to be applied adheringly to the shell of a cylinder bore without the need for mechanical activation of the surface to be coated.SOLUTION: A cylinder of piston-type internal combustion engine includes at least one bore with inner shell formed from a base material. The base material, in a region of the bore, includes at least partially a layer system, and a first boundary surface formed between the base material and the layer system. The layer system includes at least one thermally sprayed layer forming at least partially an inner shell surface of the bore and can act there as a functional layer. The first boundary surface does not include any profiling applied fo activation of the surface apart from surface roughness resulting from manufacture of the bore. The material of the layer system includes molybdenum and at least one further element in the region of the boundary surface to the base material and is bonded to the base material by a chemical bond. This boundary surface material differs from the material of the functional layer in composition and/or structure.SELECTED DRAWING: Figure 2
Inventors:
Volpe, Flavio
Application Number:
JP2022141111A
Publication Date:
December 27, 2022
Filing Date:
September 06, 2022
Export Citation:
Assignee:
Jerikon Meteco Akchen Gezel Shaft, Wohlen
International Classes:
C23C4/02; F02F1/00; F16J10/00
Attorney, Agent or Firm:
Patent Attorney Corporation Asamura Patent Office
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