Apparatus for applying cold-spray to small diameter bores
AssigneeHoneywell International Inc.
InventorDavid Payne
Life of this patent
Estimating the term…
Abstract
A nozzle is provided for use during a process for cold-dynamic gas spraying a powder material onto a bore surface. In one embodiment, and by way of example only, the nozzle includes a tube and a coating. The tube is configured to direct the powder material to the bore surface and has an inner surface, an axial section, a radial section, and a bend. At least a portion of the inner surface of the axial section defines a converging/diverging flowpath, and the axial section and the radial section are disposed at a predetermined angle relative to one another and include the bend disposed therebetween. The coating is disposed on at least a portion of the tube inner surface and comprises a material to which the powder material does not adhere.
Claims20
A nozzle for use during a process for cold-dynamic gas spraying a powder material onto a bore surface, the nozzle comprising:
- a tube configured to direct the powder material to the bore surface, the tube having an inner surface, an axial section, a radial section, and a bend, at least a portion of the inner surface of the axial section defining a converging/diverging flowpath, the axial section and the radial section disposed at a predetermined angle relative to one another and including the bend disposed therebetween;
- and
- a coating disposed on at least a portion of the tube inner surface, the coating comprising a material to which the powder material does not adhere.
A nozzle for use during a process for cold-dynamic gas spraying a powder material onto a bore surface, the nozzle comprising:
- a first tube configured to direct the powder material to the bore surface, the first tube having an inner surface, an axial section, a radial section, and a bend, at least a portion of the inner surface of the axial section defining a converging/diverging flowpath, the axial section and the radial section disposed at a predetermined angle relative to one another, the bend disposed between the axial and radial sections and including an outer section;
- an opening formed through the first tube on the bend outer section;
- and
- a gas jet in communication with the opening and configured to direct a stream of gas at a predetermined velocity and direction therethrough to divert the powder material traveling in an axial direction to a radial direction.
A nozzle for use during a process for cold-dynamic gas spraying a powder material onto a bore surface, the nozzle comprising:
- a tube configured to direct the powder material to the bore surface having an inlet, an outlet disposed substantially in alignment with the inlet, and a flowpath therebetween;
- a deflector disposed proximate the tube outlet and disposed at an angle relative to the flowpath to thereby divert a direction in which the powder material travels along the flowpath such that the powder material impinges the bore surface at an angle of about 90 degrees;
- and
- a coating disposed on at least a portion of the deflector, the coating comprising a material to which the powder material does not adhere.
Dependencies are inferred from the claim text.