Service tube for a turbine engine
AssigneeGeneral Electric Company
InventorsKarthik Agara, John Jakomin, Steven Paul Femia, Vinodh Rajagopalan
Life of this patent
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Abstract
An apparatus and method of reducing operating temperatures of a gas turbine engine, exposed to a service tube assembly by utilizing a skirt and radially outer mount. The reduction in temperature exposure minimizes temperatures of the service tube during engine operation to reduce the incidence of oil coking or varnish.
Claims30
A method of installing a heat shield about a service tube located within a strut for a gas turbine engine and having radially inner and outer fittings, the method comprising:
- sliding a heat shield sleeve over the service tube through a radially inner opening of the strut until a radially outer end of the heat shield sleeve abuts the outer fitting exteriorly of the strut;
- securing the heat shield sleeve to the outer fitting to form a first sub assembly;
- moving the first sub assembly radially inwardly until the outer fitting abuts a portion of the strut;
- and
- securing the outer fitting to the portion of the strut.
A service tube assembly for a strut of a gas turbine engine comprising:
- a service tube having an outer radial fitting and an inner radial fitting;
- and
- a heat shield extending from the outer radial fitting toward the inner radial fitting;
- wherein the heat shield is secured to the outer radial fitting.
A heat shield for a service tube passing through a strut of a gas turbine engine, the heat shield comprising:
- a sleeve sized to be slidably received over the service tube;
- and
- a skirt having a least two portions sized to surround the service tube;
- wherein the portions of the skirt are secured to each other and to an end of the sleeve.
Dependencies are inferred from the claim text.