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US 2013/0340443 A1Published application
Plug Assembly for Borescope Port Cooling
OwnerRubens Sallesinventor
Life of this patent
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Abstract
A removable plug assembly modified for port cooling plugs a borescope port but allows controlled leakage to cool surfaces adjacent the port below oxidation limits. The plug assembly has a plunger and plug wherein the plug includes a plurality of flow recesses allowing bypass air to cool the surface having the port, as well as the borescope plug.
Claims20
A removable plug assembly modified for port cooling, comprising:
- a plunger having a first end, a second end and shaft defined therebetween;
- a sealing plug at said second end of said plunger having a first diameter;
- said plug having a tapered surface tapering to a second diameter which is less than said first diameter;
- a plurality of flow recesses along an outer surface of said plug between at least one surface of said first diameter and at least one surface of said second diameter;
- said flow recesses allowing by-pass air to reach a lower surface wherein a port is disposed.
2 more elements
A removable plug assembly, comprising:
- a plunger having an upper end, a lower end and a shaft therebetween;
- a sealing plug at a lower end of said shaft said plug having a sealing surface therealong and plurality of flow recesses along said sealing surface;
- said plurality of flow recesses allowing by-pass air to move from a first end of said sealing surface to a second end of said sealing surface.
A removable plug assembly allowing for port cooling, comprising:
- a plunger for positioning within a borescope port of a gas turbine engine;
- said plunger having a first end, a second end and a shaft therebetween;
- a plug disposed at said second end of said shaft, said plug having a first diameter disposed on a first side of said port, a second diameter passing into said port and a tapered surface therebetween;
- said plug further comprising a sealing surface to engage said port;
- at least one flow recess extending from said first side of said portion to said second diameter on a second side of said port allowing cooling air to pass along said tapered surface.
2 more elements
Dependencies are inferred from the claim text.