Patents by Inventor Dominic William DePaoli
Dominic William DePaoli 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: 11624283Abstract: High cycle fatigue (HCF) in a turbine wheel of a sector-divided dual volute turbocharger, particularly a turbocharger where the tongue-to-blade gap is as small as from 1-3% of the wheel diameter, is reduced, and energy extraction is optimized, using a turbine wheel with (blade stiffness/backwall stiffness×100) between 41 and 44.Type: GrantFiled: August 27, 2019Date of Patent: April 11, 2023Assignee: BorgWarner Inc.Inventors: Matthew Carson Colley, Craig Andrew Colont, Dominic William DePaoli, Sean Hastings
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Patent number: 11408331Abstract: A wastegate assembly for a turbocharger includes a valve element. The valve element has a valve body, a first shaft extending away from the valve body along a first axis, and a second valve shaft spaced from the first valve shaft and extending away from the valve body along a second axis. The valve element is movable between a first and a second position to control exhaust gas flow to a turbine housing interior of the turbocharger. The wastegate assembly also includes a valve arm coupled to the first and second valve shafts for moving the valve element between the first and second positions. The wastegate assembly further includes a washer coupled to at least one of the first and second valve shafts and axially spaced from the valve arm with respect to the first and second axes.Type: GrantFiled: March 6, 2020Date of Patent: August 9, 2022Assignee: BorgWarner Inc.Inventors: George Edward Heddy, III, Dominic William DePaoli
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Patent number: 11371423Abstract: A wastegate assembly for controlling flow of exhaust gas includes a valve element having a valve body and a valve shaft. The wastegate assembly further includes a spindle having a head defining an opening for receiving the valve shaft. The wastegate assembly further includes a washer coupled to the valve shaft and spaced from the spindle such that the spindle is disposed between the valve body and the washer. The spindle head or the washer includes a raised lip extending towards the other of the spindle head or the washer, with the other of the spindle head or the washer defining a notch configured to at least partially receive the raised lip and configured to cooperate with the raised lip to shield the biasing member from exhaust gas and high temperatures.Type: GrantFiled: September 20, 2019Date of Patent: June 28, 2022Assignees: BorgWarner Inc., GM Global Technology Operations LLCInventors: Dominic William DePaoli, Aaron Date, Michael Daniel Cola, Grant W. Brady
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Patent number: 11313271Abstract: A wastegate assembly for controlling flow of exhaust gas includes a valve element having a valve body and a valve shaft. The wastegate assembly further includes a spindle. The wastegate assembly further includes a washer coupled to the valve shaft and spaced from the spindle for securing the spindle to the valve shaft. A plurality of cup springs is disposed between the spindle and the washer. The plurality of cup springs includes at least a first cup spring and a second cup spring, with the first cup spring supported on the spindle head and the second cup spring orientated substantially identical to the first cup spring and disposed directly on the first cup spring.Type: GrantFiled: September 14, 2020Date of Patent: April 26, 2022Assignee: Borg Warner Inc.Inventors: Dominic William Depaoli, Aaron Date, Michael Daniel Cola, Georg Scholz, Marc Werner, Christian Cossmann, Jakob Penth, Christoph Müller, Ravi Patil
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Patent number: 11203970Abstract: A wastegate assembly for controlling flow of exhaust gas includes a valve element having a valve body and a valve shaft. The wastegate assembly further includes a spindle having a head defining an opening and including a flat surface. The wastegate assembly further includes a washer coupled to the valve shaft and spaced from the spindle for securing the spindle to the valve shaft. The washer defines a bottom washer surface facing the flat surface of the spindle head, with the bottom washer surface including a flat region and a beveled region. A biasing member is disposed between the flat surface of the spindle and the flat and beveled regions of the washer. The beveled region extends oblique relative to the flat region for minimizing contact between the washer and the biasing member beyond the flat region.Type: GrantFiled: September 20, 2019Date of Patent: December 21, 2021Assignee: BorgWarner Inc.Inventors: Dominic William DePaoli, Aaron Date, Michael Daniel Cola, Georg Scholz, Marc Werner, Christian Cossmann, Jakob Penth, Christoph Müller, Ravi Patil
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Patent number: 11187106Abstract: A bearing heat shield, a turbomachine having a bearing heat shield and method for assembling such is disclosed. The bearing heat shield includes an outer annular ring extending around an outer circumference of the bearing heat shield, the outer annular ring has a flat surface and extends inward from an outer diameter measurement to a middle diameter measurement. The bearing heat shield further includes a concave surface, the concave surface being defined by a curvature and extending inward from the middle diameter measurement to an inner diameter measurement.Type: GrantFiled: May 23, 2019Date of Patent: November 30, 2021Assignee: BorgWarner Inc.Inventors: Dominic William DePaoli, Aaron Burke Date, Tanner Leigh Brookshire, Daniel Thomas Pruitt
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Publication number: 20210340900Abstract: A wastegate assembly for controlling flow of exhaust gas includes a valve element having a valve body and a valve shaft. The wastegate assembly further includes a spindle having a head defining an opening for receiving the valve shaft. The wastegate assembly further includes a washer coupled to the valve shaft and spaced from the spindle such that the spindle is disposed between the valve body and the washer. The spindle head or the washer includes a raised lip extending towards the other of the spindle head or the washer, with the other of the spindle head or the washer defining a notch configured to at least partially receive the raised lip and configured to cooperate with the raised lip to shield the biasing member from exhaust gas and high temperatures.Type: ApplicationFiled: September 20, 2019Publication date: November 4, 2021Inventors: Dominic William DePaoli, Aaron Date, Michael Daniel Cola, Grant W. Brady
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Publication number: 20210317777Abstract: A wastegate assembly for controlling flow of exhaust gas includes a valve element having a valve body and a valve shaft. The wastegate assembly further includes a spindle having a head defining an opening and including a flat surface. The wastegate assembly further includes a washer coupled to the valve shaft and spaced from the spindle for securing the spindle to the valve shaft. The washer defines a bottom washer surface facing the flat surface of the spindle head, with the bottom washer surface including a flat region and a beveled region. A biasing member is disposed between the flat surface of the spindle and the flat and beveled regions of the washer. The beveled region extends oblique relative to the flat region for minimizing contact between the washer and the biasing member beyond the flat region.Type: ApplicationFiled: September 20, 2019Publication date: October 14, 2021Inventors: Dominic William DePaoli, Aaron Date, Michael Daniel Cola, Georg Scholz, Marc Werner, Christian Cossmann, Jakob Penth, Christoph Müller, Ravi Patil
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Publication number: 20210277821Abstract: A wastegate assembly for a turbocharger includes a valve element. The valve element has a valve body, a first shaft extending away from the valve body along a first axis, and a second valve shaft spaced from the first valve shaft and extending away from the valve body along a second axis. The valve element is movable between a first and a second position to control exhaust gas flow to a turbine housing interior of the turbocharger. The wastegate assembly also includes a valve arm coupled to the first and second valve shafts for moving the valve element between the first and second positions. The wastegate assembly further includes a washer coupled to at least one of the first and second valve shafts and axially spaced from the valve arm with respect to the first and second axes.Type: ApplicationFiled: March 6, 2020Publication date: September 9, 2021Inventors: George Edward Heddy, III, Dominic William DePaoli
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Publication number: 20210087968Abstract: A wastegate assembly for controlling flow of exhaust gas includes a valve element having a valve body and a valve shaft. The wastegate assembly further includes a spindle. The wastegate assembly further includes a washer coupled to the valve shaft and spaced from the spindle for securing the spindle to the valve shaft. A plurality of cup springs is disposed between the spindle and the washer. The plurality of cup springs includes at least a first cup spring and a second cup spring, with the first cup spring supported on the spindle head and the second cup spring orientated substantially identical to the first cup spring and disposed directly on the first cup spring.Type: ApplicationFiled: September 14, 2020Publication date: March 25, 2021Inventors: Dominic William DEPAOLI, Aaron DATE, Michael Daniel COLA, Georg SCHOLZ, Marc WERNER, Christian COSSMANN, Jakob PENTH, Christoph MÜLLER, Ravi PATIL
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Publication number: 20200370444Abstract: A bearing heat shield, a turbomachine having a bearing heat shield and method for assembling such is disclosed. The bearing heat shield includes an outer annular ring extending around an outer circumference of the bearing heat shield, the outer annular ring has a flat surface and extends inward from an outer diameter measurement to a middle diameter measurement. The bearing heat shield further includes a concave surface, the concave surface being defined by a curvature and extending inward from the middle diameter measurement to an inner diameter measurement.Type: ApplicationFiled: May 23, 2019Publication date: November 26, 2020Applicant: BorgWarner Inc.Inventors: Dominic William DePaoli, Aaron Burke Date, Tanner Leigh Brookshire, Daniel Thomas Pruitt
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Patent number: 10711690Abstract: A wastegate assembly for a turbocharger includes a valve element having a valve body and a shaft extending away from the valve body. A spindle is coupled to the shaft for moving the valve element between a first and a second position to control the flow of exhaust gas to a turbine housing interior of the turbocharger. A washer is coupled to the shaft such that the spindle is disposed between the valve body and the washer for retaining the spindle to the shaft. A biasing member is disposed between the spindle and the washer, has a trough portion extending toward the spindle, and has a crest portion extending toward the washer. At least one of the spindle and the washer define a seating groove and the biasing member extends at least partially into the seating groove to seat and prevent rotation of the biasing member.Type: GrantFiled: November 6, 2018Date of Patent: July 14, 2020Assignee: BorgWarner Inc.Inventors: Dominic William DePaoli, Matthew Carson Colley
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Publication number: 20200141308Abstract: A wastegate assembly for a turbocharger includes a valve element having a valve body and a shaft extending away from the valve body. A spindle is coupled to the shaft for moving the valve element between a first and a second position to control the flow of exhaust gas to a turbine housing interior of the turbocharger. A washer is coupled to the shaft such that the spindle is disposed between the valve body and the washer for retaining the spindle to the shaft. A biasing member is disposed between the spindle and the washer, has a trough portion extending toward the spindle, and has a crest portion extending toward the washer. At least one of the spindle and the washer define a seating groove and the biasing member extends at least partially into the seating groove to seat and prevent rotation of the biasing member.Type: ApplicationFiled: November 6, 2018Publication date: May 7, 2020Inventors: Dominic William DePaoli, Matthew Carson Colley
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Publication number: 20200123907Abstract: High cycle fatigue (HCF) in a turbine wheel of a sector-divided dual volute turbocharger, particularly a turbocharger where the tongue-to-blade gap is as small as from 1-3% of the wheel diameter, is reduced, and energy extraction is optimized, using a turbine wheel with (blade stiffness/backwall stiffness×100) between 41 and 44.Type: ApplicationFiled: August 27, 2019Publication date: April 23, 2020Inventors: Matthew Carson Colley, Craig Andrew Colont, Dominic William DePaoli, Sean Hastings
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Patent number: 10465522Abstract: High cycle fatigue (HCF) in a turbine wheel of a sector-divided dual volute turbocharger, particularly a turbocharger where the tongue-to-blade gap is as small as from 1-3% of the wheel diameter, is reduced using a turbine wheel with (blade stiffness/backwall stiffness×100) between 41 and 44.Type: GrantFiled: October 23, 2018Date of Patent: November 5, 2019Assignee: BorgWarner Inc.Inventors: Matthew Carson Colley, Craig Andrew Colont, Dominic William DePaoli, Sean Hastings