Method for manufacturing cylinder block and cylinder block
US9885311B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2012 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Oct 30, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F1/18
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A thermally sprayed coating is formed on an inner surface of a cylinder bore of a cylinder block by using a thermal spray gun. The thermal spray gun is reciprocated along an axial direction in the cylinder bore while being rotated, and injects melted droplets generated by melting a wire made of a ferrous material from a nozzle at its end. At this time, a moving speed of the thermal spray gun along the axial direction into the cylinder bore is made equal-to or larger-than a predetermined value, and the number of reciprocating cycles of the thermal spray gun along the axial direction into the cylinder bore is made equal-to or larger-than a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.