C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 4/14 (2006.01) C23C 4/12 (2006.01) C23C 4/16 (2006.01)
Patent
CA 2334419
The invention provides a method and an apparatus for thermally coating the cylinder barrels of a cylinder block of a combustion engine. During the coating operation, air flows through the cylinder bore whose barrel is to be coated with a flow velocity of between 7 m/s and 12 m/s. This air flow is generated by means of extraction, whereby the air is extracted from the bottom of the cylinder bore through the crankcase of the cylinder block. For extracting the air, a plurality of extraction collars are provided that are connected to an extraction fan and are moved from the bottom through the crankcase to the lower end of the cylinder bores. During the coating operation, the pressure of the air flowing through extraction conduits to the extraction fan is measured and the value of the velocity of the air flow through the cylinder bore is calculated. An adjustment mechanism controls air chokes in the air conduits in response to the calculated flow velocity present in the cylinder bores.
Barrigar Intellectual Property Law
Sulzer Metco Ag
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