Coating apparatus – Gas or vapor deposition – With treating means
Patent
1994-05-31
1995-02-21
Bueker, Richard
Coating apparatus
Gas or vapor deposition
With treating means
118715, 118723HC, C23C 1600
Patent
active
053912330
ABSTRACT:
The present invention is directed to a process for coating the interior surfaces of an orifice in a substrate that forms a slurry fuel injection nozzle. In a specific embodiment, the nozzle is part of a fuel injection system for metering a coal-water slurry into a large, medium-speed, multi-cylinder diesel engine. In order to retard erosion of the orifice, the substrate is placed in a chemical vapor deposition (CVD) reaction chamber. A reaction gas is passed into the chamber at a gas temperature below its reaction temperature and is directed through the orifice in the substrate. The gas reaction temperature is a temperature at and above which the reaction gas deposits as a coating, and the reaction gas is of a composition whereby improved resistance to erosion by flow of the particulates in the slurry fuel is imparted by the deposited coating. Only the portion of the substrate in proximity to the orifice to be coated is selectively heated to at least the gas reaction temperature for effecting coating of the orifice's interior surfaces by the vapor deposited coating formed from the reaction gas.
REFERENCES:
patent: 57271 (1866-08-01), Adams, Jr.
patent: 1940171 (1933-12-01), Huss
patent: 4427720 (1984-01-01), Gauje
patent: 4592506 (1986-06-01), Capes et al.
patent: 4816286 (1989-03-01), Hirose
patent: 4960643 (1990-10-01), Lemelson
patent: 5061513 (1991-10-01), Flynn et al.
Flynn Paul L.
Giammarise Anthony W.
Bueker Richard
General Electric Company
Kratz Ann M.
Snyder Marvin
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