Patents by Inventor David Maliniak
David Maliniak 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: 11549388Abstract: An inner shroud assembly of a variable vane actuation system for a gas turbine engine includes a shroud assembly comprising a multiple of forward shroud segments and a respective multiple of aft shroud segments. A multiple of variable vanes are rotationally retained at an inboard trunion between the forward and aft shroud segments of the shroud assembly. A retainer assembly includes a multiple of retainer ring segments that retain the forward and aft shroud segments together. The inner shroud assembly is assembled into an engine case with an inboard extending feature that engages with an outer diameter feature of each of the multiple of retainer ring segments.Type: GrantFiled: January 18, 2021Date of Patent: January 10, 2023Assignee: Raytheon Technologies CorporationInventors: Mohammad G. Faisal, David Maliniak
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Publication number: 20220228507Abstract: An inner shroud assembly of a variable vane actuation system for a gas turbine engine includes a shroud assembly comprising a multiple of forward shroud segments and a respective multiple of aft shroud segments. A multiple of variable vanes are rotationally retained at an inboard trunion between the forward and aft shroud segments of the shroud assembly. A retainer assembly includes a multiple of retainer ring segments that retain the forward and aft shroud segments together. The inner shroud assembly is assembled into an engine case with an inboard extending feature that engages with an outer diameter feature of each of the multiple of retainer ring segments.Type: ApplicationFiled: January 18, 2021Publication date: July 21, 2022Applicant: Raytheon Technologies CorporationInventors: Mohammad G. Faisal, David Maliniak
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Patent number: 11391215Abstract: A spline assembly includes a shaft having an outer surface with a shaft spline extending along the outer surface. The spline assembly may further include a hub having an inner surface with a hub spline extending along the inner surface and configured to mate with the shaft spline of the shaft. The spline assembly may further include a spline engagement aid configured to be coupled to the shaft and having an aid spline configured to engage with the hub spline to facilitate alignment of the shaft spline relative to the hub spline.Type: GrantFiled: January 31, 2019Date of Patent: July 19, 2022Assignee: Raytheon Technologies CorporationInventors: David Maliniak, Ronald Mazurkiewicz, Jr.
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Patent number: 11022145Abstract: A variable area vane arrangement includes a stator vane, a bushing and a vane platform with an aperture. The stator vane rotates about an axis, and includes a shaft that extends along the axis into the aperture. The bushing is connected to the shaft, and is arranged within the aperture between the vane platform and the shaft.Type: GrantFiled: August 20, 2018Date of Patent: June 1, 2021Assignee: Raytheon Technologies CorporationInventors: David Maliniak, Nathan F. Champion, Kenneth A. Frisk
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Publication number: 20200248629Abstract: A spline assembly includes a shaft having an outer surface with a shaft spline extending along the outer surface. The spline assembly may further include a hub having an inner surface with a hub spline extending along the inner surface and configured to mate with the shaft spline of the shaft. The spline assembly may further include a spline engagement aid configured to be coupled to the shaft and having an aid spline configured to engage with the hub spline to facilitate alignment of the shaft spline relative to the hub spline.Type: ApplicationFiled: January 31, 2019Publication date: August 6, 2020Applicant: United Technologies CorporationInventors: David Maliniak, Ronald Mazurkiewicz, JR.
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Patent number: 10711648Abstract: A example nosecone support of a gas turbine engine includes, among other things, a spar to extend radially from a nosecone. The spar is configured to attach to a case to support the nosecone.Type: GrantFiled: February 19, 2014Date of Patent: July 14, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventor: David Maliniak
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Patent number: 10662814Abstract: A shroud for a turbomachine stator includes a first portion and a second portion configured to sandwich around at least a portion of a stator vane assembly, a first pin hole defined in the first portion at an angle relative to an axial direction of the turbomachine, and a second pin hole defined in the second portion at the angle of the first portion, wherein the first pin hole is aligned and in communication with the second pin hole to accommodate a pin configured to be seated in the first and second pin holes.Type: GrantFiled: November 2, 2015Date of Patent: May 26, 2020Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventor: David Maliniak
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Patent number: 10526911Abstract: A synchronization ring for a variable vane assembly of a gas turbine engine may include a first ring portion and a second ring portion. The first ring portion and the second ring portion may be detachably coupled together to jointly define a plurality of cylindrical bores circumferentially distributed around the synchronization ring and extending radially through the synchronization ring.Type: GrantFiled: June 22, 2017Date of Patent: January 7, 2020Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: William S. Pratt, David Maliniak, Christopher St. Mary
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Patent number: 10385719Abstract: A variable vane assembly includes a variable vane, a trunnion arranged on one end of the variable vane, an inner bushing configured to receive the trunnion in a press fit relationship, and an outer bushing configured to rotatably receive the inner bushing. A retention feature is configured to retain the trunnion axially with respect to the outer bushing. A gas turbine engine and a method of assembling a variable vane assembly are also disclosed.Type: GrantFiled: August 13, 2014Date of Patent: August 20, 2019Assignee: United Technologies CorporationInventors: David Maliniak, Nathan F. Champion
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Publication number: 20180371937Abstract: A synchronization ring for a variable vane assembly of a gas turbine engine may include a first ring portion and a second ring portion. The first ring portion and the second ring portion may be detachably coupled together to jointly define a plurality of cylindrical bores circumferentially distributed around the synchronization ring and extending radially through the synchronization ring.Type: ApplicationFiled: June 22, 2017Publication date: December 27, 2018Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: WILLIAM S. PRATT, DAVID MALINIAK, CHRISTOPHER ST. MARY
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Publication number: 20180347587Abstract: A variable area vane arrangement includes a stator vane, a bushing and a vane platform with an aperture. The stator vane rotates about an axis, and includes a shaft that extends along the axis into the aperture. The bushing is connected to the shaft, and is arranged within the aperture between the vane platform and the shaft.Type: ApplicationFiled: August 20, 2018Publication date: December 6, 2018Inventors: David Maliniak, Nathan F. Champion, Kenneth A. Frisk
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Patent number: 10125789Abstract: A variable area vane arrangement includes a stator vane, a bushing and a vane platform with an aperture. The stator vane rotates about an axis, and includes a shaft that extends along the axis into the aperture. The bushing is connected to the shaft, and is arranged within the aperture between the vane platform and the shaft.Type: GrantFiled: December 16, 2013Date of Patent: November 13, 2018Assignee: United Technologies CorporationInventors: David Maliniak, Nathan F. Champion, Kenneth A. Frisk
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Patent number: 10107122Abstract: A shroud supports one of an inner and an outer trunnion on a variable vane. The shroud is provided by a first and a second axial half. Each of the axial halves is provided by a plurality of circumferentially spaced segments. Circumferential edges are defined on each of the plurality of circumferentially spaced segments. Edges between adjacent ones of the circumferentially spaced segments on the first half are circumferentially offset from the edges on adjacent ones of circumferentially spaced segments of the second half, such that no direct leakage path exists across an axial width of the shroud.Type: GrantFiled: February 4, 2014Date of Patent: October 23, 2018Assignee: United Technologies CorporationInventor: David Maliniak
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Patent number: 9932988Abstract: A variable area vane arrangement includes a stator vane, a bushing and a vane platform with an aperture. The stator vane rotates about an axis, and includes a shaft that extends along the axis into the aperture. The bushing is connected to the shaft, and is arranged within the aperture between the vane platform and the shaft.Type: GrantFiled: December 16, 2013Date of Patent: April 3, 2018Assignee: United Technologies CorporationInventors: David Maliniak, Nathan F. Champion, Kenneth A. Frisk
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Patent number: 9540939Abstract: A gas turbine engine includes a compressor section and a nosecone assembly. The compressor section includes an inlet guide vane assembly including an inner shroud, an outer shroud, and an inlet guide vane extending from the inner shroud to the outer shroud. The nosecone assembly is attached to the inner shroud.Type: GrantFiled: December 26, 2013Date of Patent: January 10, 2017Assignee: United Technologies CorporationInventors: David Maliniak, Daniel J. Monahan, Jonathan D. Little, Veerachari J. Mayachari, Rakesh Sharma N. Dumavath, Arun Kumar Jayasingh, Herbert L. Walker
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Publication number: 20160208637Abstract: A variable vane assembly includes a variable vane, a trunnion arranged on one end of the variable vane, an inner bushing configured to receive the trunnion in a press fit relationship, and an outer bushing configured to rotatably receive the inner bushing. A retention feature is configured to retain the trunnion axially with respect to the outer bushing. A gas turbine engine and a method of assembling a variable vane assembly are also disclosed.Type: ApplicationFiled: August 13, 2014Publication date: July 21, 2016Inventors: David MALINIAK, Nathan F. CHAMPION
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Publication number: 20160123188Abstract: A shroud for a turbomachine stator includes a first portion and a second portion configured to sandwich around at least a portion of a stator vane assembly, a first pin hole defined in the first portion at an angle relative to an axial direction of the turbomachine, and a second pin hole defined in the second portion at the angle of the first portion, wherein the first pin hole is aligned and in communication with the second pin hole to accommodate a pin configured to be seated in the first and second pin holes.Type: ApplicationFiled: November 2, 2015Publication date: May 5, 2016Inventor: David Maliniak
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Publication number: 20160024972Abstract: A example nosecone support of a gas turbine engine includes, among other things, a spar to extend radially from a nosecone. The spar is configured to attach to a case to support the nosecone.Type: ApplicationFiled: February 19, 2014Publication date: January 28, 2016Inventor: David Maliniak
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Publication number: 20150354387Abstract: A shroud supports one of an inner and an outer trunnion on a variable vane. The shroud is provided by a first and a second axial half. Each of the axial halves is provided by a plurality of circumferentially spaced segments. Circumferential edges are defined on each of the plurality of circumferentially spaced segments. Edges between adjacent ones of the circumferentially spaced segments on the first half are circumferentially offset from the edges on adjacent ones of circumferentially spaced segments of the second half, such that no direct leakage path exists across an axial width of the shroud.Type: ApplicationFiled: February 4, 2014Publication date: December 10, 2015Inventor: David Maliniak
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Publication number: 20150003968Abstract: A gas turbine engine includes a compressor section and a nosecone assembly. The compressor section includes an inlet guide vane assembly including an inner shroud, an outer shroud, and an inlet guide vane extending from the inner shroud to the outer shroud. The nosecone assembly is attached to the inner shroud.Type: ApplicationFiled: December 26, 2013Publication date: January 1, 2015Inventors: David Maliniak, Daniel J. Monahan, Jonathan D. Little, Veerachari J. Mayachari, Rakesh Sharma N. Dumavath, Arun Kumar Jayasingh, Herbert L. Walker