Douglas K Spencer

US Patent:

8342796, Jan 1, 2013

Filed:

Apr 29, 2008

Appl. No.:

12/111726

Inventors:

Douglas Spencer - Mesa AZ, US
Mohsiul Alam - Chandler AZ, US
Griff Kinsinger - Chandler AZ, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F01D 25/04

US Classification:

415113, 384 99

Abstract:

Damping systems and engines including the damping systems are provided. In one embodiment, and by way of example only, the damping system includes a rotor, a bearing assembly mounted to the rotor, a spring cage disposed around the bearing assembly, an axially-extending housing surrounding the spring cage, a first squeeze film damper formed between the bearing assembly and the spring cage, and a second squeeze film damper formed between the spring cage and the axially-extending housing.

US Patent:

8596417, Dec 3, 2013

Filed:

Jul 5, 2011

Appl. No.:

13/176421

Inventors:

Rich Barrett - Mesa AZ, US
Larry Ball - Chandler AZ, US
Douglas Spencer - Mesa AZ, US
Victor Reyes - Chandler AZ, US
Don Rossi - Scottsdale AZ, US
Alan Tiltman - Fountain Hills AZ, US
Daniel Troller - Fountain Hills AZ, US
James Ebken - Gilbert AZ, US
Mike O'Brien - Goodyear AZ, US

Assignee:

Honeywell International Inc. - Morristown NJ

International Classification:

F01M 1/18
F01M 11/10
F01D 25/18

US Classification:

184 611, 184 64

Abstract:

A lubrication system is provided for delivering a lubricant to a plurality of nozzles. The lubrication system includes a reservoir for the lubricant; a pump fluidly coupled to the reservoir and configured to remove a flow of the lubricant from the reservoir; a lubrication sensor positioned between the pump and the plurality of nozzles and configured to detect a blockage in the plurality of nozzles and to generate a blockage signal when the blockage is detected; and an indicator coupled to the lubrication sensor and configured to generate a warning based on the blockage signal from the lubrication sensor.