# US 2021/0277830 A1 · Integrated exhaust baffle and split line retaining plate

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- Number: US 2021/0277830 A1
- Document ID: US20210277830A1
- Status: Published application
- Kind: A1
- Application number: 16/811,915
- Filed: 2020-03-06
- Published: 2021-09-09
- Earliest claimed: 2020-03-06
- Assignees: Hamilton Sundstrand Corporation
- Applicants: Hamilton Sundstrand Corporation
- Inventors: Thomas Jakab; William Boyd Hubbard; Jeffrey Todd Roberts; Adrian L. Stoicescu
- Web page: https://patentgrep.com/patent/US20210277830A1

## CPC

- F02C 7/26: Starting; Ignition
- F02C 7/277: the starter being a {separate} turbine
- F05D 2220/323: for aircraft propulsion, e.g. jet engines
- F05D 2260/85: Starting
- F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00)
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

## Abstract

A baffle is provided herein. The baffle includes a cylindrical baffle section. The cylindrical baffle section includes one or more holes. The baffle also includes a split line retaining section. The split line retaining section includes one or more mounting bosses. Each of the one or more mounting bosses receives one or more mounting bolts.

## Claims

### Claim 1

A baffle comprising:
a cylindrical baffle section comprising one or more holes; and
a split line retaining section comprising one or more mounting bosses for receiving one or more mounting bolts.

### Claim 2 (depends on 1)

The baffle of claim 1, wherein the baffle comprises a one piece design.

### Claim 3 (depends on 1)

The baffle of claim 1, wherein the baffle utilizes the one or more mounting bolts to position the baffle against a starter.

### Claim 4 (depends on 1)

The baffle of claim 1, wherein the cylindrical baffle section comprises a repeating pattern of the one or more holes.

### Claim 5 (depends on 1)

The baffle of claim 1, wherein each hole of the one or more holes comprises a cylindrical shape or a slotted shape.

### Claim 6 (depends on 5)

The baffle of claim 5, wherein each hole of the one or more holes is a quarter inch in across.

### Claim 7 (depends on 1)

The baffle of claim 1, wherein the one or more holes enable exhaust air to pass out of a starter.

### Claim 8 (depends on 1)

The baffle of claim 1, wherein each hole of the one or more holes comprises a crescent shape or zigzag shape.

### Claim 9 (depends on 1)

The baffle of claim 1, wherein the baffle is incorporated into an air-start device.

### Claim 10 (depends on 9)

The baffle of claim 9, wherein an engine of an aircraft comprises the air-start device.

### Claim 11

An air-start device comprising:
a starter; and
a baffle design configured over an exhaust path of the starter, the baffle design comprising:
a cylindrical baffle section comprising one or more holes; and
a split line retaining section comprising one or more mounting bosses for receiving one or more mounting bolts,
wherein the baffle design utilizes the one or more mounting bolts to position the baffle against the starter.

### Claim 12 (depends on 11)

The air-start device of claim 11, wherein the baffle comprises a one piece design.

### Claim 13 (depends on 11)

The air-start device of claim 11, wherein the cylindrical baffle section comprises a repeating pattern of the one or more holes.

### Claim 14 (depends on 11)

The air-start device of claim 11, wherein each hole of the one or more holes comprises a cylindrical shape or a slotted shape.

### Claim 15 (depends on 14)

The air-start device of claim 14, wherein each hole of the one or more holes is a quarter inch across.

### Claim 16 (depends on 11)

The air-start device of claim 11, wherein the one or more holes enable exhaust air to pass out of the starter.

### Claim 17 (depends on 11)

The air-start device of claim 11, wherein each hole of the one or more holes comprises a crescent shape or zigzag shape.