Pressure relief device for a propeller hub
First Claim
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1. A pressure relief system for a propeller hub, the propeller hub including a chamber;
- and a bore arm for mounting a propeller blade therein, the bore arm including a plurality of bearings for facilitating movement of the propeller blade, wherein the bore arm is in fluid communication with the chamber for providing lubricant to the plurality of bearings, the bore arm further including a ball loading hole for removal and installation of the plurality of bearings, said pressure relief system comprising;
a first housing for sealably engaging a wall of the ball loading hole; and
a diaphragm for sealably engaging said housing to seal the chamber, wherein said diaphragm ruptures at a pressure to vent the chamber.
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Abstract
A pressure relief device for preventing over pressurization of a propeller hub is disclosed. The pressure relief device is designed to fit within a ball hole opening in the hub arm of the hub. The pressure relief device includes a housing which sealably interfaces with an inner wall of the ball loading hole opening and a diaphragm which sealably interfaces with the housing. The diaphragm is designed to rupture at a design pressure thus venting the hub cavity.
18 Citations
7 Claims
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1. A pressure relief system for a propeller hub, the propeller hub including a chamber;
- and a bore arm for mounting a propeller blade therein, the bore arm including a plurality of bearings for facilitating movement of the propeller blade, wherein the bore arm is in fluid communication with the chamber for providing lubricant to the plurality of bearings, the bore arm further including a ball loading hole for removal and installation of the plurality of bearings, said pressure relief system comprising;
a first housing for sealably engaging a wall of the ball loading hole; and
a diaphragm for sealably engaging said housing to seal the chamber, wherein said diaphragm ruptures at a pressure to vent the chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- and a bore arm for mounting a propeller blade therein, the bore arm including a plurality of bearings for facilitating movement of the propeller blade, wherein the bore arm is in fluid communication with the chamber for providing lubricant to the plurality of bearings, the bore arm further including a ball loading hole for removal and installation of the plurality of bearings, said pressure relief system comprising;
Specification
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Current AssigneeUnited Technologies Corporation (Raytheon Technologies Corporation d/b/a RTX)
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Original AssigneeUnited Technologies Corporation (Raytheon Technologies Corporation d/b/a RTX)
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InventorsSoule, Matthew C., Corley, Thomas G., Pruden, Robert W.
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Primary Examiner(s)Ryznic, John E.
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Application NumberUS09/305,758Time in Patent Office762 DaysField of Search137/68.23, 137/68.27, 137/68.29, 137/68.19, 416/147, 416/148, 416/155, 416/156US Class Current416/42CPC Class CodesB64C 11/00 Propellers, e.g. of ducted ...B64C 11/38 fluid, e.g. hydraulicF16K 17/16 with fracturing diaphragm ;...Y10T 137/1714 Direct pressure causes disc...
