# US 11,028,729 B2 · Heat shield, systems and methods

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- Number: US 11,028,729 B2
- Document ID: US11028729B2
- Status: Granted
- Kind: B2
- Application number: 16/412,187
- Filed: 2019-05-14
- Published: 2019-09-12
- Granted: 2021-06-08
- Earliest claimed: 2015-04-09
- Assignees: Raytheon Technologies Corporation
- Applicants: United Technologies Corporation
- Inventors: Pawel Socha; Jonathan C Reuben; Bret B Cutler
- Web page: https://patentgrep.com/patent/US11028729B2

## CPC

- F01D 25/18: Lubricating arrangements (of machines or engines in general F01M)
- F01D 9/02: Nozzles; Nozzle boxes; Stator blades; Guide conduits {, e.g. individual nozzles (nozzle boxes F01D9/047)}
- F01D 9/065: {Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids (see also F01D25/16, F01D25/24 and F01D25/26)}
- F01D 25/162: {Bearing supports}
- F01D 25/28: Supporting or mounting arrangements, e.g. for turbine casing
- F01M 11/02: Arrangements of lubricant conduits
- F05D 2230/00: Manufacture
- F05D 2230/54: by sheet metal manufacturing
- F05D 2240/12: Fluid guiding means, e.g. vanes
- F05D 2240/15: Heat shield
- F05D 2240/50: Bearings
- F05D 2250/11: triangular
- F05D 2260/231: Preventing heat transfer
- F05D 2260/98: Lubrication
- Y02T 50/60: Efficient propulsion technologies, e.g. for aircraft
- F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D)
- F01M: LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A heat shield may include a base portion, wherein the base portion bounds a triangular void, a top portion, wherein the top portion bounds an ovular void, and a tapered portion, wherein the tapered portion extends between the base portion and the top portion, the top portion having a smaller cross-sectional area than the base portion.

## Claims

### Claim 1

A heat shield comprising:
a base portion, wherein the base portion bounds a generally triangular-shaped void;
a top portion, wherein the top portion bounds an ovular void; and
a tapered portion, wherein the tapered portion extends between the base portion and the top portion, the top portion having a smaller cross-sectional area than the base portion.

### Claim 2 (depends on 1)

The heat shield of claim 1, wherein the heat shield is configured to at least partially encase a fitting.

### Claim 3 (depends on 2)

The heat shield of claim 2, wherein the heat shield is configured to impede heat transfer between the fitting and surrounding air.

### Claim 4 (depends on 3)

The heat shield of claim 3, wherein the heat shield and the fitting are separated by a gap.

### Claim 5 (depends on 1)

The heat shield of claim 1, wherein the top portion is configured to be attached to a tube.

### Claim 6 (depends on 5)

The heat shield of claim 5, wherein the base portion is configured to receive a fitting attached to the tube.

### Claim 7 (depends on 1)

The heat shield of claim 1, wherein the heat shield is manufactured via a hydro-forming process.

### Claim 8 (depends on 1)

The heat shield of claim 1, wherein the heat shield comprises at least one of a nickel-chromium based alloy and a stainless steel.

### Claim 9 (depends on 1)

The heat shield of claim 1, wherein the base portion, the top portion, and the tapered portion are formed from a single piece of material.

### Claim 10 (depends on 1)

The heat shield of claim 1, wherein the heat shield is for a gas turbine engine.