Patents by Inventor Jeffrey M. Makulec
Jeffrey M. Makulec 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: 9657586Abstract: A starter configured for use with a turbomachine includes a housing defining a cavity, a transmission operative to convert an airflow into rotational motion for starting an engine, wherein the cavity is configured to hold a quantity of starter oil for lubricating at least a portion of the transmission, and an oil filter disposed in fluid communication with the starter oil.Type: GrantFiled: April 24, 2014Date of Patent: May 23, 2017Assignee: Hamilton Sundstrand CorporationInventors: John T. Pech, Jeffrey M. Makulec
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Patent number: 9359957Abstract: A planet gear for use in an air turbine starter is formed of a first part having a set of gear teeth at a first axial location. A shaft extends axially away from the first set of gear teeth. A second part is interference fit on the first part, with the second part having a second set of gear teeth. The second part is mounted on the shaft of the first part. An outer diameter of the shaft is selected to be significantly larger than an inner diameter of a cylindrical portion of the second part which is interference fit on the shaft. A ratio of the outer diameter to the inner diameter is between 1.0005 and 1.0100. A planetary gear system, an air turbine starter and a method of installing a planet gear are also disclosed.Type: GrantFiled: October 12, 2011Date of Patent: June 7, 2016Assignee: Hamilton Sundstrand CorporationInventors: Jeffrey M. Makulec, Matthew Slayter, Charles E. Long, Thomas Jakab
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Patent number: 9353690Abstract: A connection for a rotating machine according to an exemplary aspect of the present disclosure includes an interface axially between and adjacent to a first interference fit and a second interference fit.Type: GrantFiled: June 21, 2010Date of Patent: May 31, 2016Assignee: Hamilton Sundstrand CorporationInventors: Jeffrey M. Makulec, Jeffrey A. Stadler
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Publication number: 20150308283Abstract: A starter configured for use with a turbomachine includes a housing defining a cavity, a transmission operative to convert an airflow into rotational motion for starting an engine, wherein the cavity is configured to hold a quantity of starter oil for lubricating at least a portion of the transmission, and an oil filter disposed in fluid communication with the starter oil.Type: ApplicationFiled: April 24, 2014Publication date: October 29, 2015Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: John T. Pech, Jeffrey M. Makulec
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Patent number: 9028208Abstract: A vane profile section for an air turbine starter includes an airfoil which defines an airfoil profile section through a leading edge and a trailing edge, the airfoil profile section defined by a set of X-coordinates and Z-coordinates.Type: GrantFiled: August 29, 2012Date of Patent: May 12, 2015Assignee: Hamilton Sundstrand CorporationInventors: David J. Zawilinski, Jeffrey M. Makulec, Bradley Thomas Ryan, Matthew Slayter
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Patent number: 8973266Abstract: A gear cage assembly configured to support a plurality of planet gear in an air turbine starter is provided including a main plate and a back plate. The main plate includes a plurality of legs that extend from a first surface. A pin protrudes from a one of the plurality of legs. A plurality of shallow openings formed in the first surface extends over only a portion of a depth of the main plate. The back plate includes a plurality of bearing holes substantially identical to the plurality of shallow openings. A biasing mechanism and at least one alignment feature protrude from the back plate. The at least one alignment feature and the biasing mechanism are configured to contact at least one of the plurality of legs. A bushing mounted within the back plate is configured to receive the pin.Type: GrantFiled: November 9, 2012Date of Patent: March 10, 2015Assignee: Hamilton Sundstrand CorporationInventors: Yiwei Jiang, Jeffrey M. Makulec, Bradley Thomas Ryan
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Patent number: 8932002Abstract: An air turbine starter is provided and includes a rotor including turbine blades, which is rotatable about a rotational axis, a housing including a portion thereof radially surrounding the turbine blades to define a pathway along which fluids flow to interact with the turbine blades and a containment ring affixed to an exterior of the portion of the housing radially surrounding the turbine blades.Type: GrantFiled: December 3, 2010Date of Patent: January 13, 2015Assignee: Hamilton Sundstrand CorporationInventors: Jeffrey M. Makulec, Matthew Slayter, Dean A. Norem, Jody A. Peterson, Brian Kent Rockwell, Matthew Gorajski
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Patent number: 8899910Abstract: A clutch assembly includes a shaft, vent plug and oil guide sleeve. The shaft includes an internal cavity, first passages for allowing oil to lubricate clutch components, and second passages for allowing excess oil to drain from the internal cavity. The vent plug has a radial passage in communication with the internal cavity for venting the cavity with an external source of air. The oil guide sleeve directs oil into the internal cavity. A method for lubricating and venting an air turbine starter includes delivering lubricating oil to an internal cavity of a clutch via an oil guide sleeve. The oil guide sleeve prevents oil from exiting the cavity through excess oil drainage passages before it lubricates the clutch components. The method also includes draining excess oil from the cavity through excess oil drainage passages so that excess oil does not substantially impede air flow through a vent plug passage.Type: GrantFiled: August 26, 2011Date of Patent: December 2, 2014Assignee: Hamilton Sundstrand CorporationInventors: Jeffrey M. Makulec, Marc Westen
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Publication number: 20140250914Abstract: A starter motor has a housing. The housing receives the starter motor and a plurality of locations to receive lubricant. The lubricant supply system shares a lubricant source with a main gas turbine engine to be started by the starter motor. The lubricant supply system has a shutoff valve. The shutoff valve is opened when starter motor is being driven to start a main gas turbine engine. The shutoff valve is generally closed once the main gas turbine engine is started.Type: ApplicationFiled: March 11, 2013Publication date: September 11, 2014Applicant: Hamilton Sundstrand CorporationInventors: Matthew Slayter, Jeffrey M. Makulec, Jeffrey A. Stadler
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Publication number: 20140130356Abstract: A gear cage assembly configured to support a plurality of planet gear in an air turbine starter is provided including a main plate and a back plate. The main plate includes a plurality of legs that extend from a first surface. A pin protrudes from a one of the plurality of legs. A plurality of shallow openings formed in the first surface extends over only a portion of a depth of the main plate. The back plate includes a plurality of bearing holes substantially identical to the plurality of shallow openings. A biasing mechanism and at least one alignment feature protrude from the back plate. The at least one alignment feature and the biasing mechanism are configured to contact at least one of the plurality of legs. A bushing mounted within the back plate is configured to receive the pin.Type: ApplicationFiled: November 9, 2012Publication date: May 15, 2014Inventors: Yiwei Jiang, Jeffrey M. Makulec, Bradley Thomas Ryan
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Publication number: 20140124449Abstract: A chip collector body is provided including a coupled base and elongate member. The base and elongate member have a substantially hollow interior extending from a first end to a second end, so as to form a shell. A collector element is positioned within the hollow interior. The collector element has a magnetic element positioned adjacent the second end and a flange positioned near the first end. The collector element is configured to move between a first position and a second position to selectively demagnetize the chip collector body. An axial biasing member is positioned between the flange of the collector element and a rigid surface. The axial biasing member is configured to bias the collector element into the first position.Type: ApplicationFiled: November 5, 2012Publication date: May 8, 2014Inventors: Matthew Slayter, Jeffrey M. Makulec
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Patent number: 8672620Abstract: A vane profile section for an Air Turbine Starter includes an airfoil which defines an airfoil profile section through a leading edge and a trailing edge, the airfoil profile section defined by a set of X-coordinates and Y-coordinates.Type: GrantFiled: August 17, 2010Date of Patent: March 18, 2014Assignee: Hamilton Sundstrand CorporationInventors: David J. Zawilinski, Jeffrey M. Makulec, Matthew Slayter
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Patent number: 8672638Abstract: A blade profile section for an air turbine starter includes an airfoil which defines an airfoil profile section through a leading edge and a trailing edge. The airfoil profile section is defined by a set of X-coordinates and Z-coordinates defined in any of Table I, Table II, Table III or Table IV scaled by a desired factor. The X-coordinate is the tangential direction, and the Z-coordinate is a axial direction between the leading edge and the trailing edge.Type: GrantFiled: September 27, 2012Date of Patent: March 18, 2014Assignee: Hamilton Sundstrand CorporationInventors: David J. Zawilinski, Jeffrey M. Makulec, Bradley Thomas Ryan, Matthew Slayter
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Patent number: 8672637Abstract: A blade profile section for an Air Turbine Starter includes an airfoil which defines an airfoil profile section through a leading edge and a trailing edge. The airfoil profile section is defined by a set of X-coordinates and Y-coordinates defined in any of Table I, Table II, Table III or Table IV scaled by a desired factor. The X-coordinate is the tangential direction, the Y-coordinate is the axial direction, and the Z-coordinate is a radial direction between an airfoil root and an airfoil tip.Type: GrantFiled: August 17, 2010Date of Patent: March 18, 2014Assignee: Hamilton Sundstrand CorporationInventors: David J. Zawilinski, Jeffrey M. Makulec, Matthew Slayter
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Patent number: 8651806Abstract: An inlet housing assembly for an Air Turbine Starter includes an outer flowpath curve of an inlet flowpath defined by a multiple of arcuate surfaces in cross-section.Type: GrantFiled: August 17, 2010Date of Patent: February 18, 2014Assignee: Hamilton Sundstrand CorporationInventors: David J. Zawilinski, Jeffrey M. Makulec, Matthew Slayter
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Patent number: 8485936Abstract: A planet shaft for supporting a planet gear has a supporting portion extending along a central axis and having a first outer diameter. A flange is formed at one end of the supporting portion, which has a smaller section formed about a portion of a circumference around the central axis, and an enlarged portion extending away from the central axis for a greater distance than the smaller portion. A hole to receive a lock member is formed in the enlarged portion. A planetary gear assembly including such a planet shaft is disclosed as is an air turbine starter including the planetary gear system. Further, a method of installing a planet gear and planet shaft is also disclosed and claimed.Type: GrantFiled: July 20, 2010Date of Patent: July 16, 2013Assignee: Hamilton Sundstrand CorporationInventors: Jeffrey M. Makulec, Matthew Slayter
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Patent number: 8475116Abstract: A turbine balance assembly has a turbine rotor and shaft. Bearings are positioned radially outwardly of the shaft. A bearing sleeve is positioned radially outwardly of the bearings, and supports the bearings. The bearing sleeve extends along an axial length defined by a rotational axis of the shaft, and has a turbine rotor end adjacent to the turbine rotor, and a remote end. A radially outwardly extending flange on the bearing sleeve extends radially outwardly of a support portion of the bearing sleeve at the turbine rotor end. The flange has a nominal outer diameter, and includes a slot for receiving an anti-rotation tab from a gear cage over a first circumferential extent. A bearing sleeve incorporates the anti-rotation feature, and a gear cage incorporates its portion of the anti-rotation feature. An air turbine starter, and a method of installing components of a turbine balance assembly are also disclosed.Type: GrantFiled: July 23, 2010Date of Patent: July 2, 2013Assignee: Hamilton Sundstrand CorporationInventors: William C. Trommer, Jeffrey M. Makulec
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Publication number: 20130091863Abstract: A planet gear for use in an air turbine starter is formed of a first part having a set of gear teeth at a first axial location. A shaft extends axially away from the first set of gear teeth. A second part is interference fit on the first part, with the second part having a second set of gear teeth. The second part is mounted on the shaft of the first part. An outer diameter of the shaft is selected to be significantly larger than an inner diameter of a cylindrical portion of the second part which is interference fit on the shaft. A ratio of the outer diameter to the inner diameter is between 1.0005 and 1.0100. A planetary gear system, an air turbine starter and a method of installing a planet gear are also disclosed.Type: ApplicationFiled: October 12, 2011Publication date: April 18, 2013Inventors: Jeffrey M. Makulec, Matthew Slayter, Charles E. Long, Thomas Jakab
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Publication number: 20130051975Abstract: A clutch assembly includes a shaft, vent plug and oil guide sleeve. The shaft includes an internal cavity, first passages for allowing oil to lubricate clutch components, and second passages for allowing excess oil to drain from the internal cavity. The vent plug has a radial passage in communication with the internal cavity for venting the cavity with an external source of air. The oil guide sleeve directs oil into the internal cavity. A method for lubricating and venting an air turbine starter includes delivering lubricating oil to an internal cavity of a clutch via an oil guide sleeve. The oil guide sleeve prevents oil from exiting the cavity through excess oil drainage passages before it lubricates the clutch components. The method also includes draining excess oil from the cavity through excess oil drainage passages so that excess oil does not substantially impede air flow through a vent plug passage.Type: ApplicationFiled: August 26, 2011Publication date: February 28, 2013Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Jeffrey M. Makulec, Marc Westen
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Publication number: 20120328426Abstract: A vane profile section for an air turbine starter includes an airfoil which defines an airfoil profile section through a leading edge and a trailing edge, the airfoil profile section defined by a set of X-coordinates and Z-coordinates.Type: ApplicationFiled: August 29, 2012Publication date: December 27, 2012Inventors: David J. Zawilinski, Jeffrey M. Makulec, Bradley Thomas Ryan, Matthew Slayter