The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 2005
Filed:
Apr. 05, 2002
Thomas Hubert Van Steenkiste, Ray, MI (US);
John R. Smith, Birmingham, MI (US);
Daniel William Gorkiewicz, Washington, MI (US);
Alaa A. Elmoursi, Troy, MI (US);
Bryan A. Gillispie, Warren, MI (US);
Nilesh B. Patel, Macomb Township, MI (US);
Thomas Hubert Van Steenkiste, Ray, MI (US);
John R. Smith, Birmingham, MI (US);
Daniel William Gorkiewicz, Washington, MI (US);
Alaa A. Elmoursi, Troy, MI (US);
Bryan A. Gillispie, Warren, MI (US);
Nilesh B. Patel, Macomb Township, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A method of maintaining a non-obstructed interior opening in a kinetic spray nozzle is disclosed. The method includes the steps of providing a mixture of particles including first particle population and a second particle population; entraining the mixture of particles into a flow of a gas at a temperature below the melt temperature of the particle populations; and directing the mixture of particles entrained in the flow of gas through a supersonic nozzle to accelerate the first particle population to a velocity sufficient to result in adherence of the first particle population on a substrate positioned opposite the nozzle. The operating conditions of the kinetic spray system are selected such that the second particle population is not accelerated to a velocity sufficient to result in adherence when it impacts the substrate. The inclusion of the second particle population maintains the supersonic nozzle in a non-obstructed condition and also enables one to raise the main gas operating temperature to a much higher level, thereby increasing the deposition efficiency of the first particle population.