Patents by Inventor Keith A. Hurley
Keith A. Hurley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7954998Abstract: A hydrodynamic bearing set, for use with a thrust disk disposed between planar surfaces of a housing, includes first and second topfoils disposed adjacent first and second thrust disk axial bearing surfaces and removably secured to the housing. An underspring is secured between each planar housing surface and the corresponding topfoil. Dual-leaf spring pairs attached to at least one topfoil periphery function to urge the topfoils away from the thrust disk axial bearing surfaces by applying a force against a planar housing surface, another topfoil, or a spacer washer secured between adjacent topfoil dual-leaf pairs or frictionally retained within the housing. Alternatively, a wavy washer, a conical spring, a Belleville washer, or a coil spring can be substituted for the dual-leaf spring pairs.Type: GrantFiled: January 21, 2009Date of Patent: June 7, 2011Assignee: Honeywell International, Inc.Inventors: Marshall Saville, Keith A Hurley, Aileen Mah, Sun Goo Alan Kang
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Publication number: 20100027925Abstract: A hydrodynamic bearing set, for use with a thrust disk disposed between planar surfaces of a housing, includes first and second topfoils disposed adjacent first and second thrust disk axial bearing surfaces and removably secured to the housing. An underspring is secured between each planar housing surface and the corresponding topfoil. Dual-leaf spring pairs attached to at least one topfoil periphery function to urge the topfoils away from the thrust disk axial bearing surfaces by applying a force against a planar housing surface, another topfoil, or a spacer washer secured between adjacent topfoil dual-leaf pairs or frictionally retained within the housing. Alternatively, a wavy washer, a conical spring, a Belleville washer, or a coil spring can be substituted for the dual-leaf spring pairs.Type: ApplicationFiled: January 21, 2009Publication date: February 4, 2010Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Marshall Saville, Keith A. Hurley, Aileen Mah, Sun Goo Alan Kang
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Patent number: 7553086Abstract: A journal foil bearing comprising a retaining member having an inner surface which defines a shaft opening within which a rotatable shaft is receivable for rotation; and a foil assembly affixed to and lining the inner surface and comprising a plurality of foil sub-assemblies each subtending a circumferential segment, of the inner surface.Type: GrantFiled: July 20, 2004Date of Patent: June 30, 2009Assignee: Honeywell International Inc.Inventors: Sun Goo Kang, Marshall Saville, Keith A. Hurley
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Patent number: 7497627Abstract: A hydrodynamic bearing set, for use with a thrust disk disposed between planar surfaces of a housing, includes first and second topfoils disposed adjacent first and second thrust disk axial bearing surfaces and removably secured to the housing. An underspring is secured between each planar housing surface and the corresponding topfoil. Dual-leaf spring pairs attached to at least one topfoil periphery function to urge the topfoils away from the thrust disk axial bearing surfaces by applying a force against a planar housing surface, another topfoil, or a spacer washer secured between adjacent topfoil dual-leaf pairs or frictionally retained within the housing. Alternatively, a wavy washer, a conical spring, a Belleville washer, or a coil spring can be substituted for the dual-leaf spring pairs.Type: GrantFiled: June 7, 2004Date of Patent: March 3, 2009Assignee: Honeywell International Inc.Inventors: Marshall Saville, Keith A. Hurley, Aileen Mah, Sun Goo Alan Kang
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Publication number: 20070047858Abstract: A foil journal bearing with a dual stiffness spring comprises a housing, a shaft arranged for relative coaxial rotation with respect to the housing, and a single spring layer surrounding the shaft. The single spring layer may have a first linear spring rate and a second linear spring rate wherein the first linear spring rate is formed by first pitch corrugations along a length of the single spring layer and the second linear spring rate is formed by second pitch corrugations along a length of the single spring layer. In an aspect of the invention, the foil journal bearing provides a top foil having first and second ends positioned in a notch in the housing. In an aspect of the invention, the single spring layer maintains a ratio of three of the second pitch corrugations to each of the first pitch corrugations.Type: ApplicationFiled: April 20, 2006Publication date: March 1, 2007Inventors: Keith Hurley, Marshall Saville, Alan Kang, Aileen Yap
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Publication number: 20060018574Abstract: A journal foil bearing comprising a retaining member having an inner surface which defines a shaft opening within which a rotatable shaft is receivable for rotation; and a foil assembly affixed to and lining the inner surface and comprising a plurality of foil sub-assemblies each subtending a circumferential segment, of the inner surface.Type: ApplicationFiled: July 20, 2004Publication date: January 26, 2006Applicant: Honeywell International Inc.,Inventors: Sun Goo Kang, Marshall Saville, Keith Hurley
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Publication number: 20050271311Abstract: A hydrodynamic bearing set, for use with a thrust disk disposed between planar surfaces of a housing, includes first and second topfoils disposed adjacent first and second thrust disk axial bearing surfaces and removably secured to the housing. An underspring is secured between each planar housing surface and the corresponding topfoil. Dual-leaf spring pairs attached to at least one topfoil periphery function to urge the topfoils away from the thrust disk axial bearing surfaces by applying a force against a planar housing surface, another topfoil, or a spacer washer secured between adjacent topfoil dual-leaf pairs or frictionally retained within the housing. Alternatively, a wavy washer, a conical spring, a Belleville washer, or a coil spring can be substituted for the dual-leaf spring pairs.Type: ApplicationFiled: June 7, 2004Publication date: December 8, 2005Applicant: Honeywell International Inc.Inventors: Marshall Saville, Keith Hurley, Aileen Mah, Sun Goo Kang
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Patent number: 6752533Abstract: An improved foil thrust bearing includes a cooling fluid flow turbulence generating disk placed between other foil thrust bearing elements, such as thrust bearing elements and underspring elements. The inventive turbulence generating disk generally provides improved transfer of heat through the foil and into the cooling fluid of foil thrust bearings that may be used for high rotor speed applications. It accomplishes this by improving the transfer of heat through the foil and into the cooling fluid by generating turbulent cooling flow adjacent to the back of the top foil. The turbulent flow is generated primarily by a series of turns or protrusions introduced into the cooling flow stream. Alternate embodiments are disclosed that provide the turbulence generating elements as part of the underside of thrust bearing elements.Type: GrantFiled: November 15, 2002Date of Patent: June 22, 2004Assignee: Honeywell International Inc.Inventors: Marshall Saville, Keith A. Hurley, Joseph B. Borghese
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Publication number: 20040096130Abstract: An improved foil thrust bearing includes a cooling fluid flow turbulence generating disk placed between other foil thrust bearing elements, such as thrust bearing elements and underspring elements. The inventive turbulence generating disk generally provides improved transfer of heat through the foil and into the cooling fluid of foil thrust bearings that may be used for high rotor speed applications. It accomplishes this by improving the transfer of heat through the foil and into the cooling fluid by generating turbulent cooling flow adjacent to the back of the top foil. The turbulent flow is generated primarily by a series of turns or protrusions introduced into the cooling flow stream. Alternate embodiments are disclosed that provide the turbulence generating elements as part of the underside of thrust bearing elements.Type: ApplicationFiled: November 15, 2002Publication date: May 20, 2004Applicant: Honeywell International Inc.Inventors: Marshall Saville, Keith A. Hurley, Joseph B. Borghese