Joseph S Swift

US Patent:

20220403756, Dec 22, 2022

Filed:

Apr 18, 2022

Appl. No.:

17/723161

Inventors:

- Indianapolis IN, US
Joseph A. Swift - Indianapolis IN, US
Daniel Feinstein - Zionsville IN, US
Jared Isamu Taketa - Avon IN, US

Assignee:

Rolls-Royce Corporation - Indianapolis IN

International Classification:

F01D 25/18
F01D 25/12
F01D 25/16

Abstract:

A system includes an air chamber and an oil capture cavity. The air chamber includes an inlet to receive pressurized air from a gas turbine engine. The oil capture cavity is positioned between the air chamber and an oil sump supplying lubricating oil to the gas turbine engine. The oil capture cavity includes an auxiliary vent formed in a base of the oil capture cavity. A seal may separate the oil capture cavity from fluid communication with the oil sump. A nozzle provides fluid communication between the oil capture cavity and the air chamber. The nozzle is configured and positioned to direct a stream of the pressurized air into the oil capture cavity against an opposite wall of the oil capture cavity to create a quiescent zone at the base of the oil capture cavity. The quiescent zone includes the auxiliary vent.

US Patent:

20210062722, Mar 4, 2021

Filed:

Aug 30, 2019

Appl. No.:

16/557048

Inventors:

- Indianapolis IN, US
Joseph Swift - Indianapolis IN, US
Daniel Feinstein - Zionsville IN, US
Caleb Camara - Indianapolis IN, US

Assignee:

Rolls-Royce Corporation - Indianapolis IN

International Classification:

F02C 7/32

Abstract:

A method for shimming a thrust bearing for an accessory power take off shaft to obtain optimal meshing of bevel gears within the internal gearbox (IGB) without disassembly of the IGB is enabled by relocating the thrust bearing from the engine sump. The accessory gearbox (AGB) is driven from a power off-take from the turbine spool via the IGB. The radial position of the power take-off bevel gear is established by a radial position of the thrust bearing attached to the exterior of the casing via a housing. Candidate shims are selected from a set each having different thicknesses, the shims are formed of two halves and placed between the housing and the engine casing to adjust the radial position of the thrust bearing and consequently the power take-off bevel gear, without requiring the disassembly of the IGB.

US Patent:

20200173556, Jun 4, 2020

Filed:

Nov 30, 2018

Appl. No.:

16/205881

Inventors:

- Indianapolis IN, US
Jared Isamu Taketa - Indianapolis IN, US
Joseph A. Swift - Indianapolis IN, US
Daniel Feinstein - Zionsville IN, US

Assignee:

Rolls-Royce Corporation - Indianapolis IN

International Classification:

F16J 15/16
F16J 15/34
F16J 15/44

Abstract:

Systems and methods are disclosed for sealing a high pressure fluid cavity from a low pressure fluid cavity in a rotating machine such as a gas turbine engine. The cavities are at least partially disposed between a rotatable shaft and a sump housing radially displaced from the rotatable shaft. A seal assembly comprises an air riding carbon seal ring and a circumferential ceramic runner. The carbon seal ring is sealingly engaged with the sump housing and has a radially inward facing seal surface. The circumferential ceramic runner is carried by the shaft and has a radially outward facing seal surface extending axially along the shaft. The radially inward facing seal surface of the air riding carbon seal ring sealingly engages the radially outward facing seal surface of the ceramic runner during rotation of the rotatable shaft at a predetermined range of rotational speeds.

US Patent:

20200109646, Apr 9, 2020

Filed:

Oct 4, 2018

Appl. No.:

16/151995

Inventors:

- Indianapolis IN, US
Joseph A. Swift - Indianapolis IN, US
Daniel Feinstein - Zionsville IN, US
Jared Isamu Taketa - Avon IN, US

Assignee:

Rolls-Royce Corporation - Indianapolis IN

International Classification:

F01D 25/18
F01D 25/16
F01D 25/12

Abstract:

A system includes an air chamber and an oil capture cavity. The air chamber includes an inlet to receive pressurized air from a gas turbine engine. The oil capture cavity is positioned between the air chamber and an oil sump supplying lubricating oil to the gas turbine engine. The oil capture cavity includes an auxiliary vent formed in a base of the oil capture cavity. A seal may separate the oil capture cavity from fluid communication with the oil sump. A nozzle provides fluid communication between the oil capture cavity and the air chamber. The nozzle is configured and positioned to direct a stream of the pressurized air into the oil capture cavity against an opposite wall of the oil capture cavity to create a quiescent zone at the base of the oil capture cavity. The quiescent zone includes the auxiliary vent.

US Patent:

20200102986, Apr 2, 2020

Filed:

Sep 28, 2018

Appl. No.:

16/146719

Inventors:

- Indianapolis IN, US
David Farnum - Indianapolis IN, US
Daniel Feinstein - Zionsville IN, US
Joseph Swift - Indianapolis IN, US

Assignee:

Rolls-Royce Corporation - Indianapolis IN

International Classification:

F16C 33/66
F16C 27/04
F01D 25/16
F01D 25/18

Abstract:

An oil scavenge system of a rotatable machine having an axis of rotation is disclosed. The oil scavenge system comprises a sump housing, a scavenge conduit, a bearing, and a squeeze film damper. The sump housing is arranged about the axis and at least partly defining a sump. The sump housing has a radially inner surface for directing the flow of oil and defining a collection orifice. The scavenge conduit is in fluid communication with the collection orifice and a downstream location remote from the sump. The bearing is disposed within the sump. The squeeze film damper is positioned proximate the bearing. The squeeze film damper comprises an annular channel and a supply line. The supply line supplies oil to the annular channel. The squeeze film damper further comprises a discharge line. The discharge line is axially aligned with and discharges toward an inner wall of the scavenge conduit.

US Patent:

20200072358, Mar 5, 2020

Filed:

Aug 31, 2018

Appl. No.:

16/118859

Inventors:

- Indianapolis IN, US
Joseph Swift - Indianapolis IN, US

Assignee:

Rolls-Royce Corporation - Indianapolis IN

International Classification:

F16J 15/54
F16C 33/76
F16C 35/08

Abstract:

A machine can include a radially inner component, a radially outer component, and a circumferential seal assembly between the inner and outer components. At least one (e.g., both) of the inner and outer components can be a rotor. The circumferential seal assembly can include a circumferential metallic mount, a circumferential ceramic runner, a circumferential carbon seal, and one or more spring energized seals. The spring energized seals can prevent rotational slippage between the metallic mount and the ceramic runner. The spring energized seals can be necessary to prevent rotational slippage between the metallic mount and the ceramic runner for at least one standard operating state of the machine.

US Patent:

20160201748, Jul 14, 2016

Filed:

Jan 8, 2016

Appl. No.:

14/991725

Inventors:

- Indianapolis IN, US
Sean Warrenburg - Avon IN, US
Joseph A. Swift - Indianapolis IN, US
Kevin Mock - Martinsville IN, US
Mark Winely - Avon IN, US

Assignee:

Rolls-Royce Corporation - Indianapolis IN

International Classification:

F16D 69/02
B64C 11/00
F16D 49/00

Abstract:

An exemplary cone brake device includes a brake drum and a thermal sprayed coating deposited and bonded to the outer surface. The thermal sprayed coating is configured to engage a friction lining when one of the brake drum and the friction element is moved toward the other of the brake drum and the friction element, so as to decrease the speed of an aerospace propeller.