James R Gustafson

US Patent:

7140240, Nov 28, 2006

Filed:

Jun 21, 2004

Appl. No.:

10/872625

Inventors:

James R. Gustafson - Granby MA, US
Kenneth Marks - Southwick MA, US
Douglas A. Parsons - Canton CT, US
Gregory I. Rozman - Rockford IL, US

Assignee:

Hamilton Sundstrand - Windsor Locks CT

International Classification:

G01M 15/00

US Classification:

73116, 731172, 731173, 731181

Abstract:

A turbine engine inspection arrangement utilizes a motor that is otherwise utilized for starting the engine. An inspection interface allows for communicating with a motor controller to operate the motor in an inspection mode. During inspection, the motor moves the components of the engine very slowly or in an incremental fashion to facilitate visual inspection of the engine components, such as the turbine blades.

US Patent:

7298282, Nov 20, 2007

Filed:

Apr 26, 2004

Appl. No.:

10/831873

Inventors:

James R. Gustafson - Granby MA, US
Mahesh J. Shah - Lindenhurst IL, US

Assignee:

Hamilton Sundstrand Corporation - Windsor Locks CT

International Classification:

G08B 21/00

US Classification:

340648, 340679, 318434, 318565, 361 23

Abstract:

A method and system for monitoring the performance of a permanent magnet device, such as a motor or generator, and providing early detection of motor performance deterioration. The back electromotive force (EMF) of the motor is measured at selected conditions when the motor is in a normal healthy condition to obtain a reference signature response. A measured signature is then obtained periodically during the life of the motor at the same conditions as the reference signature to check the current back EMF characteristic of the motor. If the measured signature deviates from the reference signature by a predetermined threshold, it indicates that the motor performance has degraded to a condition requiring attention.

US Patent:

7352090, Apr 1, 2008

Filed:

Mar 19, 2004

Appl. No.:

10/804305

Inventors:

James R. Gustafson - Granby MA, US
Douglas Parsons - Canton CT, US
Kenneth Marks - Southwick MA, US

Assignee:

Hamilton Sundstrand - Windsor Locks CT

International Classification:

K02K 9/00

US Classification:

310 52, 310 87

Abstract:

An electric motor has at least one component that is submerged in a cooling fluid held in a fluid-filled cavity. The stator, rotor, and rotor shaft bearings are all possible components that may be submerged. The cooling fluid floods the stator, rotor, and/or bearings to cool the components. The fluid may have a high electrical resistance to isolate the motor components from any contact with flammable gasses as well as prevent arcs or sparks. The cavity holding the fluid also ensures continuous lubrication by preventing fluid from leaking or evaporating out of the motor.

US Patent:

20040107703, Jun 10, 2004

Filed:

Dec 6, 2002

Appl. No.:

10/313175

Inventors:

James Gustafson - Granby MA, US

International Classification:

F02C007/275

US Classification:

060/788000

Abstract:

A gas turbine engine system includes an electric starter motor which utilizes a partially hollow or cupped shaped rotor. Space is provided inside the rotor to fit the required clutch, bearings, and drive shaft. A short package is provided due to the telescoped architecture while retaining the maximum length for electromagnetics.