Patents by Inventor Philip E. O. Buelow

Philip E. O. Buelow 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).

  • Publication number: 20200132305
    Abstract: A fuel injector for an exhaust heater includes a cover and an air blast nozzle. The cover has a nozzle seat, a fuel inlet, and an air inlet, the nozzle seat arranged along a flow axis. The air blast nozzle is seated in the nozzle seat and has a unibody. The air blast nozzle unibody is in fluid communication with the fuel inlet and the air inlet arranged along the flow axis to port fuel and air into a combustion volume, e.g., to heat a stream of exhaust gas flowing between an engine and a catalytic reactor by combustion with fuel introduced through the fuel inlet and air introduced through the air inlet.
    Type: Application
    Filed: October 26, 2018
    Publication date: April 30, 2020
    Inventors: Jason A. Ryon, Steven J. Myers, Philip E. O. Buelow, Lev Alexander Prociw
  • Patent number: 10480472
    Abstract: A nozzle for injecting liquid includes a nozzle body defining a flow channel and a swirl ante-chamber in fluid communication with the flow channel. An injection point orifice is defined in the swirl ante-chamber. The flow channel feeds into the swirl ante-chamber to impart a tangential flow component on fluids entering the swirl ante-chamber to generate swirl on a spray issuing from the injection point orifice. A second flow channel can be included in fluid communication with the swirl ante-chamber. The second flow channel feeds into the swirl ante-chamber in cooperation with or in opposition to the first flow channel. The first flow channel, second flow channel, and swirl ante-chamber are configured and adapted to adjust spray angle of a spray issuing from the injection point orifice by varying flow apportionment among the first and second flow channels.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: November 19, 2019
    Assignee: Delavan Inc.
    Inventors: Jason A. Ryon, Philip E. O. Buelow, John Earl Short
  • Patent number: 10317073
    Abstract: A flow directing apparatus for directing fluid flow includes a flow body defining a bore therethrough configured and adapted to direct fluid flowing therethrough. The bore includes an outlet and an opposed inlet with an enlargement, formed as a countersink and/or a chamfer using a suitable boring device. The enlargement is configured and adapted to reduce sensitivity to entrance-edge conditions for the bore.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: June 11, 2019
    Assignee: Delavan Inc.
    Inventors: Philip E. O. Buelow, Jason Ryon, Steve J. Myers
  • Publication number: 20190101291
    Abstract: A swirler, such as for swirling air in a fuel injector of a gas turbine engine, includes a swirler body with opposed inlet and outlet ends with a swirler wall extending therebetween along a longitudinal axis. The inlet end of the swirler body defines an inlet opening. A plurality of swirl slots is defined through a portion of the swirler wall that converges toward the longitudinal axis in a direction from the inlet opening toward the outlet end of the swirler body. The swirl slots are radially off-set with respect to the longitudinal axis for imparting swirl on a flow passing from the inlet opening, through the swirl slots, and past the outlet end of the swirler body.
    Type: Application
    Filed: November 30, 2018
    Publication date: April 4, 2019
    Inventors: Gary Chew, Viraphand Cholvibul, Philip E. O. Buelow, Jason A. Ryon
  • Patent number: 10240792
    Abstract: A valve for regulating fluid flowing bidirectionally therethrough includes a first flow body defining a passage configured to direct fluid flow in a downstream direction defined from the inlet to the outlet. The inlet includes an enlargement configured to provide decreased resistance to fluid flow in the downstream direction relative to flow in an upstream direction opposite the downstream direction.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: March 26, 2019
    Assignee: Delavan Inc.
    Inventors: Jason A. Ryon, Chien-Jung Yu, Philip E. O. Buelow, Neal A. Thomson
  • Publication number: 20190022673
    Abstract: A fluid spray nozzle tip can include a feed hole body that defines at least one feed hole and a spray outlet, the at least one feed hole being in direct fluid communication with the spray outlet without also being in fluid communication with an upstream spin chamber. The at least one feed hole can be a plurality of feed holes, wherein the tip further includes a pintle sealing surface body extending from the feed hole body and configured to allow a pintle to seal against a sealing surface thereof.
    Type: Application
    Filed: July 19, 2017
    Publication date: January 24, 2019
    Applicant: Delavan Inc
    Inventors: Andy W. Tibbs, Philip E. O. Buelow
  • Patent number: 10161633
    Abstract: A swirler, such as for swirling air in a fuel injector of a gas turbine engine, includes a swirler body with opposed inlet and outlet ends with a swirler wall extending therebetween along a longitudinal axis. The inlet end of the swirler body defines an inlet opening. A plurality of swirl slots is defined through a portion of the swirler wall that converges toward the longitudinal axis in a direction from the inlet opening toward the outlet end of the swirler body. The swirl slots are radially off-set with respect to the longitudinal axis for imparting swirl on a flow passing from the inlet opening, through the swirl slots, and past the outlet end of the swirler body.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: December 25, 2018
    Assignee: Delavan Inc.
    Inventors: Gary Chew, Viraphand Cholvibul, Philip E. O. Buelow, Jason Allen Ryon
  • Patent number: 10094352
    Abstract: A nozzle for injecting liquid includes a nozzle body defining a plurality of injection point orifices and an annular prefilmer positioned downstream of the injection point orifices for prefilming impingement of spray from the injection point orifices on the prefilmer. A swirl antechamber can be defined upstream of the injection point orifices for supplying a swirling liquid flow to the injection point orifices for impingement of a swirling flow on the prefilmer.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: October 9, 2018
    Assignee: Delavan Inc.
    Inventors: Philip E. O. Buelow, Jason A. Ryon, John E. Short
  • Patent number: 10077714
    Abstract: A fuel injector for a lean direct injection fuel nozzle has a pilot air swirler which sits radially outboard of a pilot fuel swirler radially outer wall. The air swirler is bounded on its radially outer side by joined wall portions. One wall portion extends axially and another wall portion converges radially. On the radially inwardly facing surface, the wall portions meet to provide a continuing wall surface of the air swirler which transitions from axial extension to radial convergence over a smooth radius. The curvature of this surface broadly mirrors the radially outwardly facing profile of the pilot fuel swirler radially outer wall. The axially extending wall portion is extended axially to form a first part of a join interface. The radially converging portion is extended in a radial direction to provide a second part of the join interface.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: September 18, 2018
    Assignee: Rolls-Royce plc
    Inventors: Randall D. Siders, Peter J. Schnoebelen, Brandon P. Williams, Neal Thomson, Philip E. O. Buelow, David H. Bretz
  • Publication number: 20180238548
    Abstract: A method of injecting fuel in a gas turbine engine includes injecting gaseous fuel from a gaseous fuel circuit of an injector in a first mode, wherein flow of gaseous fuel from the gaseous fuel circuit constricts air flow from an air circuit. The method includes injecting liquid fuel from a liquid fuel circuit in a second mode, idling flow in the gaseous fuel circuit and flowing air through the air circuit for passive purge to prevent liquid fuel from migrating into the gaseous fuel circuit. The method includes injecting a gaseous fuel that lies within a range of different Wobbe Index values, wherein regardless of where the gaseous fuel falls in the range, it does not prevent operation in the first and second modes as described above.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 23, 2018
    Inventors: Philip E. O. Buelow, Andy W. Tibbs, Steven L. Smith, David H. Bretz, Travis R. Burke
  • Publication number: 20180202655
    Abstract: A flow directing apparatus for directing fluid flow includes a flow body defining a bore therethrough configured and adapted to direct fluid flowing therethrough. The bore includes an outlet and an opposed inlet with an enlargement, formed as a countersink and/or a chamfer using a suitable boring device. The enlargement is configured and adapted to reduce sensitivity to entrance-edge conditions for the bore.
    Type: Application
    Filed: March 16, 2018
    Publication date: July 19, 2018
    Inventors: Jason A. Ryon, Steve J. Myers, Philip E. O. Buelow
  • Publication number: 20180178229
    Abstract: An atomizer includes an atomizer body with a plurality of air passages defined therethrough from an upstream end of the atomizer body to a downstream end thereof. The air passages together define an air circuit through the atomizer body. A fuel circuit is defined in the atomizer body extending from a fuel inlet to a respective fuel outlet opening into each air passage. The air passages can be arranged circumferentially about a central axis defined by the atomizer body. The fuel circuit can include a manifold extending circumferentially about the atomizer body in fluid communication with a fuel opening in each respective air passage.
    Type: Application
    Filed: February 26, 2018
    Publication date: June 28, 2018
    Inventors: Jason A. Ryon, Philip E. O. Buelow, Steven L. Smith, Lev Alexander Prociw
  • Publication number: 20180058695
    Abstract: A valve for regulating fluid flowing bidirectionally therethrough includes a first flow body defining a passage configured to direct fluid flow in a downstream direction defined from the inlet to the outlet. The inlet includes an enlargement configured to provide decreased resistance to fluid flow in the downstream direction relative to flow in an upstream direction opposite the downstream direction.
    Type: Application
    Filed: October 23, 2017
    Publication date: March 1, 2018
    Inventors: Jason A. Ryon, Chien-Jung Yu, Philip E. O. Buelow, Neal A. Thomson
  • Publication number: 20180010563
    Abstract: A nozzle for injecting liquid includes a nozzle body defining a flow channel and a swirl ante-chamber in fluid communication with the flow channel. An injection point orifice is defined in the swirl ante-chamber. The flow channel feeds into the swirl ante-chamber to impart a tangential flow component on fluids entering the swirl ante-chamber to generate swirl on a spray issuing from the injection point orifice. A second flow channel can be included in fluid communication with the swirl ante-chamber. The second flow channel feeds into the swirl ante-chamber in cooperation with or in opposition to the first flow channel. The first flow channel, second flow channel, and swirl ante-chamber are configured and adapted to adjust spray angle of a spray issuing from the injection point orifice by varying flow apportionment among the first and second flow channels.
    Type: Application
    Filed: August 15, 2017
    Publication date: January 11, 2018
    Inventors: Jason A. Ryon, Philip E. O. Buelow, John Earl Short
  • Patent number: 9745936
    Abstract: A nozzle for injecting liquid includes a nozzle body defining a flow channel and a swirl ante-chamber in fluid communication with the flow channel. An injection point orifice is defined in the swirl ante-chamber. The flow channel feeds into the swirl ante-chamber to impart a tangential flow component on fluids entering the swirl ante-chamber to generate swirl on a spray issuing from the injection point orifice. A second flow channel can be included in fluid communication with the swirl ante-chamber. The second flow channel feeds into the swirl ante-chamber in cooperation with or in opposition to the first flow channel. The first flow channel, second flow channel, and swirl ante-chamber are configured and adapted to adjust spray angle of a spray issuing from the injection point orifice by varying flow apportionment among the first and second flow channels.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: August 29, 2017
    Assignee: Delavan Inc
    Inventors: Jason Allen Ryon, Philip E. O. Buelow, John Earl Short
  • Publication number: 20170130652
    Abstract: A fuel injector for a lean direct injection fuel nozzle has a pilot air swirler which sits radially outboard of a pilot fuel swirler radially outer wall. The air swirler is bounded on its radially outer side by joined wall portions. One wall portion extends axially and another wall portion converges radially. On the radially inwardly facing surface, the wall portions meet to provide a continuing wall surface of the air swirler which transitions from axial extension to radial convergence over a smooth radius. The curvature of this surface broadly mirrors the radially outwardly facing profile of the pilot fuel swirler radially outer wall. The axially extending wall portion is extended axially to form a first part of a join interface. The radially converging portion is extended in a radial direction to provide a second part of the join interface.
    Type: Application
    Filed: November 6, 2015
    Publication date: May 11, 2017
    Inventors: Randall D. Siders, Peter J. Schnoebelen, Brandon P. Williams, Neal Thomson, Philip E.O. Buelow, David H. Bretz
  • Patent number: 9310073
    Abstract: A flow directing device for imparting swirl on a fluid includes a flow directing body having a first surface and opposed second surface. A flow channel is defined in the first surface of the flow directing body for conducting fluids flowing through the flow directing body. The flow channel includes a channel surface set in from the first surface. A swirl bore extends though the flow directing body from the channel surface to the second surface of the flow directing body at an oblique angle relative to the channel surface for imparting a tangential swirl component onto fluids flowing through the swirl bore. Having an asymmetrical terminus portion of the channel surface, and positioning of the swirl bore within the terminus portion, allow control of the swirl direction for flow within the terminus portion and swirl bore.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: April 12, 2016
    Assignee: Rolls-Royce plc
    Inventors: Philip E. O. Buelow, Randall Duane Siders, David H. Bretz, Neal A. Thomson
  • Patent number: 9228741
    Abstract: A flow directing device for imparting swirl on a fluid includes a flow directing body having an inboard surface and opposed outboard surface. A flow channel is defined in the outboard surface of the flow directing body for conducting fluids flowing through the flow directing body. The flow channel includes a channel floor and a sidewall extending from the channel floor to the outboard surface of the flow directing body. A swirl port extends from the sidewall of the flow channel though the flow directing body to the inboard surface of the flow directing body for mitigating pressure loss when discharging fluid from the flow channel.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: January 5, 2016
    Assignee: Rolls-Royce plc
    Inventors: Philip E. O. Buelow, David H. Bretz, Jason Ryon
  • Publication number: 20140319401
    Abstract: A valve for regulating fluid flowing bidirectionally therethrough includes a first flow body defining a passage configured to direct fluid flow in a downstream direction defined from the inlet to the outlet. The inlet includes an enlargement configured to provide decreased resistance to fluid flow in the downstream direction relative to flow in an upstream direction opposite the downstream direction.
    Type: Application
    Filed: April 29, 2013
    Publication date: October 30, 2014
    Applicant: DELAVAN INC
    Inventors: Jason Allen Ryon, Chien-Jung Yu, Philip E. O. Buelow, Neal Thomson
  • Publication number: 20140245742
    Abstract: A swirler, such as for swirling air in a fuel injector of a gas turbine engine, includes a swirler body with opposed inlet and outlet ends with a swirler wall extending therebetween along a longitudinal axis. The inlet end of the swirler body defines an inlet opening. A plurality of swirl slots is defined through a portion of the swirler wall that converges toward the longitudinal axis in a direction from the inlet opening toward the outlet end of the swirler body. The swirl slots are radially off-set with respect to the longitudinal axis for imparting swirl on a flow passing from the inlet opening, through the swirl slots, and past the outlet end of the swirler body.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Applicant: Delavan Inc
    Inventors: Gary Chew, Viraphand Cholvibul, Philip E. O. Buelow, Jason Allen Ryon